2017-2018 Microchip Technology Inc. DS70005349E-page 1
dsPIC33CK256MP508 FAMILY
Operating Conditions
• 3.0V to 3.6V, -40°C to +125°C, DC to 100 MIPS
Core: 16-Bit dsPIC33CK CPU
• 32-256 Kbytes of Program Flash with ECC and
8-24K RAM
• Fast 6-Cycle Divide
• LiveUpdate
• Code Efficient (C and Assembly) Architecture
• 40-Bit Wide Accumulators
• Single-Cycle (MAC/MPY) with Dual Data Fetch
• Single-Cycle, Mixed-Sign MUL Plus
Hardware Divide
• 32-Bit Multiply Support
• Four Sets of Interrupt Context Saving Registers
which Include Accumulator and STATUS for Fast
Interrupt Handling
• Zero Overhead Looping
• RAM Memory Built-In Self-Test (MBIST)
Clock Management
• Internal Oscillator
• Programmable PLLs and Oscillator Clock Sources
• Reference Clock Output
• Fail-Safe Clock Monitor (FSCM)
• Fast Wake-up and Start-up
• Backup Internal Oscillator
Power Management
• Low-Power Management Modes (Sleep,
Idle, Doze)
• Integrated Power-on Reset and Brown-out Reset
High-Speed PWM
• 8 PWM Pairs
• Up to 250 ps PWM Resolution
• Dead Time for Rising and Falling Edges
• Dead-Time Compensation
• Clock Chopping for High-Frequency Operation
• PWM Support for:
- DC/DC, AC/DC, inverters, PFC, lighting
- BLDC, PMSM, ACIM, SRM motors
• Fault and Current Limit Inputs
• Flexible Trigger Configuration for ADC Triggering
Timers/Output Compare/Input Capture
• One General Purpose Timer
• Peripheral Trigger Generator (PTG):
- Up to 15 trigger sources to other
peripheral modules
- CPU independent state machine-based
instruction sequencer
• Nine MCCP/SCCP modules which Include Timer,
Capture/Compare and PWM:
- 1 MCCP
- 8 SCCPs
- 16 or 32-bit time base
- 16 or 32-bit capture
- 4-deep capture buffer
• Fully Asynchronous Operation, Available in
Sleep Modes
28/36/48/64/80-Pin, 16-Bit Digital Signal Controllers
with High-Resolution PWM and CAN Flexible Data (CAN FD)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 2 2017-2018 Microchip Technology Inc.
Advanced Analog Features
• High-Speed ADC module:
- 12-bit with two dedicated SAR ADC cores
and one shared SAR ADC core
- Configurable resolution (up to 12-bit) for each
ADC core
- Up to 3.5 Msps conversion rate per channel
at 12-bit resolution
- Up to 24 input channels
- Dedicated result buffer for each analog channel
- Flexible and independent ADC trigger sources
- Four digital comparators
- Four oversampling filters for increased resolution
• Up to Three Analog Comparators:
- 15 ns analog comparator
• Up to Three Op Amps
• Three 12-Bit DACs:
- Hardware slope compensation
Communication Interfaces
• Three Protocol UARTs with Automated Protocol
Handling Support for:
- LIN 2.2
-DMX
-IrDA
®
• Three 4-Wire SPI/I2S modules
• CAN Flexible Data (FD) module
•Three I
2C modules with SMBus Support
• PPS to Allow Function Remap
• Programmable Cyclic Redundancy Check (CRC)
• Two SENT modules
• Parallel Master Port (PMP)
Direct Memory Access (DMA)
• Four DMA Channels
Debugger Development Support
• In-Circuit and In-Application Programming and
Debugging
• Three Complex, Five Simple Breakpoints
• IEEE 1149.2 Compatible (JTAG) Boundary Scan
• Trace Buffer and Run-Time Watch
Safety Features
• Clock Monitor System with Backup Oscillator
• DMT (Deadman Timer)
• ECC (Error Correcting Code)
• WDT (Watchdog Timer)
• CodeGuard™ Security
• CRC (Cyclic Redundancy Check)
• ICSP™ Write Inhibit
• RAM Memory Built-In Self-Test (MBIST)
• Two-Speed Start-up
• Fail-Safe Clock Monitoring (FSCM)
• Backup FRC (BFRC)
• Capless Internal Voltage Regulator
• Virtual Pins for Redundancy and Monitoring
Qualification and Class B Support
• AEC-Q100 REV-H (Grade 1: -40°C to +125°C)
Compliant
• Class B Safety Library, IEC 60730
2017-2018 Microchip Technology Inc. DS70005349E-page 3
dsPIC33CK256MP508 FAMILY
dsPIC33CK256MP508 PRODUCT FAMILIES
The device names, pin counts, memory sizes and peripheral availability of each device are listed in Ta b l e 1 and Table 2. The following pages show their pinout diagrams.
TABLE 1: dsPIC33CK256MP508 FAMILY WITH CAN FD
Product Pins
Pins
Flash
Data RAM
ADC Module
ADC Channels
Timers
MCCP/SCCP
CAN FD
DMA Channels
SENT
UART
SPI
I2C
QEI
CLC
PTG
CRC
PWM Outputs
Analog Comparators
12-Bit DAC
Op Amp
PMP
REFO Clock
dsPIC33CK256MP508 80 256K 24K 3 24 1 1/8 1 4 2 3 3 3 2 4 1 1 8 3 3 3 1 1
dsPIC33CK256MP506 64 256K 24K 3 20 1 1/8 1 4 2 3 3 3 2 4 1 1 8 3 3 3 1 1
dsPIC33CK256MP505 48 256K 24K 3 19 1 1/8 1 4 2 3 3 3 2 4 1 1 8 3 3 3 0 1
dsPIC33CK256MP503 36 256K 24K 3 16 1 1/8 1 4 2 3 3 3 2 4 1 1 6 3 3 3 0 1
dsPIC33CK256MP502 28 256K 24K 3 12 1 1/8 1 4 2 3 3 3 2 4 1 1 4 3 3 2 0 1
dsPIC33CK128MP508 80 128K 16K 3 24 1 1/8 1 4 2 3 3 3 2 4 1 1 8 3 3 3 1 1
dsPIC33CK128MP506 64 128K 16K 3 20 1 1/8 1 4 2 3 3 3 2 4 1 1 8 3 3 3 1 1
dsPIC33CK128MP505 48 128K 16K 3 19 1 1/8 1 4 2 3 3 3 2 4 1 1 8 3 3 3 0 1
dsPIC33CK128MP503 36 128K 16K 3 16 1 1/8 1 4 2 3 3 3 2 4 1 1 6 3 3 3 0 1
dsPIC33CK128MP502 28 128K 16K 3 12 1 1/8 1 4 2 3 3 3 2 4 1 1 4 3 3 2 0 1
dsPIC33CK64MP508 80 64k 8k 3 24 1 1/8 1 4 2 3 3 3 2 4 1 1 8 3 3 3 1 1
dsPIC33CK64MP506 64 64k 8k 3 20 1 1/8 1 4 2 3 3 3 2 4 1 1 8 3 3 3 1 1
dsPIC33CK64MP505 48 64k 8k 3 19 1 1/8 1 4 2 3 3 3 2 4 1 1 8 3 3 3 0 1
dsPIC33CK64MP503 36 64k 8k 3 16 1 1/8 1 4 2 3 3 3 2 4 1 1 6 3 3 3 0 1
dsPIC33CK64MP502 28 64k 8k 3 12 1 1/8 1 4 2 3 3 3 2 4 1 1 4 3 3 2 0 1
dsPIC33CK32MP506 64 32k 8k 3 20 1 1/8 1 4 2 3 3 3 2 4 1 1 8 3 3 3 1 1
dsPIC33CK32MP505 48 32k 8k 3 19 1 1/8 1 4 2 3 3 3 2 4 1 1 8 3 3 3 0 1
dsPIC33CK32MP503 36 32k 8k 3 16 1 1/8 1 4 2 3 3 3 2 4 1 1 6 3 3 3 0 1
dsPIC33CK32MP502 28 32k 8k 3 12 1 1/8 1 4 2 3 3 3 2 4 1 1 4 3 3 2 0 1
dsPIC33CK256MP508 FAMILY
DS70005349E-page 4 2017-2018 Microchip Technology Inc.
TABLE 2: dsPIC33CK256MP508 FAMILY WITHOUT CAN FD
Product Pins
Pins
Flash
Data RAM
ADC Module
ADC Channels
Timers
MCCP/SCCP
CAN FD
DMA Channels
SENT
UART
SPI
I2C
QEI
CLC
PTG
CRC
PWM Outputs
Analog Comparators
12-Bit DAC
Op Amp
PMP
REFO Clock
dsPIC33CK256MP20880256K24K32411/80423332411833311
dsPIC33CK256MP20664256K24K32011/80423332411833311
dsPIC33CK256MP20548256K24K31911/80423332411833301
dsPIC33CK256MP20336256K24K31611/80423332411633301
dsPIC33CK256MP20228256K24K31211/80423332411433201
dsPIC33CK128MP20880128K16K32411/80423332411833311
dsPIC33CK128MP20664128K16K32011/80423332411833311
dsPIC33CK128MP20548128K16K31911/80423332411833301
dsPIC33CK128MP20336128K16K31611/80423332411633301
dsPIC33CK128MP20228128K16K31211/80423332411433201
dsPIC33CK64MP2088064k8k32411/80423332411833311
dsPIC33CK64MP2066464k8k32011/80423332411833311
dsPIC33CK64MP2054864k8k31911/80423332411833301
dsPIC33CK64MP2033664k8k31611/80423332411633301
dsPIC33CK64MP2022864k8k31211/80423332411433201
dsPIC33CK32MP2066432k8k32011/80423332411833311
dsPIC33CK32MP2054832k8k31911/80423332411833301
dsPIC33CK32MP2033632k8k31611/80423332411633301
dsPIC33CK32MP2022832k8k31211/80423332411433201
2017-2018 Microchip Technology Inc. DS70005349E-page 5
dsPIC33CK256MP508 FAMILY
Pin Diagrams
28-Pin SSOP
RA1
VSS
RB4
RA2
RA3
RA0
MCLR
RA4
RB6
RB3
RB2
VSS
RB1
RB0 VDD
RB7
RB9
RB8
VDD
AVSS
AVDD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
RB15
RB14
RB13
RB12
RB10
RB11
RB5
dsPIC33CKXXXMP502
dsPIC33CKXXXMP202
Note: Shaded pins are up to 5 VDC tolerant.
TABLE 3: 28-PIN SSOP(1)
Pin # Function Pin # Function
1OA1IN-/ANA1/RA1 15 PGC3/RP38/SCL2/RB6
2OA1IN+/AN9/RA2 16 TDO/AN2/CMP3A/RP39/SDA3/RB7
3DACOUT1/AN3/CMP1C/RA3 17 PGD1/AN10/RP40/SCL1/RB8
4AN4/CMP3B/IBIAS3/RA4 18 PGC1/AN11/RP41/SDA1/RB9
5AVDD 19 VSS
6AVSS 20 VDD
7 VDD 21 TMS/RP42/PWM3H/RB10(2)
8 VSS 22 TCK/RP43/PWM3L/RB11
9 OSCI/CLKI/AN5/RP32/RB0 23 TDI/RP44/PWM2H/RB12
10 OSCO/CLKO/AN6/RP33/RB1(3)24 RP45/PWM2L/RB13
11 OA2OUT/AN1/AN7/ANA0/CMP1D/CMP2D/CMP3D/RP34/
SCL3/INT0/RB2
25 RP46/PWM1H/RB14
12 PGD2/OA2IN-/AN8/RP35/RB3 26 RP47/PWM1L/RB15
13 PGC2/OA2IN+/RP36/RB4 27 MCLR
14 PGD3/RP37/SDA2/RB5 28 OA1OUT/AN0/CMP1A/IBIAS0/RA0
Note 1: RPn represents remappable peripheral functions.
2: A pull-up resistor is connected to this pin during power-up and programming.
3: This pin is toggled during programming.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 6 2017-2018 Microchip Technology Inc.
Pin Diagrams (Continued)
28 27 26 25 24 23 22
89
10 11 12 13 14
3
18
17
16
15
4
5
7
1
220
19
6
21
AV
DD
MCLR
RA0
RA1
RA2
RA3
RB8
RB7
RB6
RB5
RB4
RB3
RB2
RB14
RB15
dsPIC33CKXXXMP502
dsPIC33CKXXXMP202
RA4
AV
SS
V
DD
V
SS
RB0
RB1 RB9
V
SS
V
DD
RB10
R
B11
R
B12
R
B13
Note 1: Shaded pins are up to 5 VDC tolerant.
2: The large center pad on the bottom of the package may be left floating or connected to VSS. The four-corner
anchor pads are internally connected to the large bottom pad, and therefore, must be connected to the same
net as the large center pad.
28-Pin UQFN(1,2)
28-Pin UQFN(1,2)
TABLE 4: 28-PIN UQFN(1)
Pin # Function Pin # Function
1RP46/PWM1H/RB14 15 OA2OUT/AN1/AN7/ANA0/CMP1D/CMP2D/CMP3D/RP34/SCL3/INT0/RB2
2RP47/PWM1L/RB15 16 PGD2/OA2IN-/AN8/RP35/RB3
3MCLR 17 PGC2/OA2IN+/RP36/RB4
4OA1OUT/AN0/CMP1A/IBIAS0/RA0 18 PGD3/RP37/SDA2/RB5
5OA1IN-/ANA1/RA1 19 PGC3/RP38/SCL2/RB6
6OA1IN+/AN9/RA2 20 TDO/AN2/CMP3A/RP39/SDA3/RB7
7DACOUT1/AN3/CMP1C/RA3 21 PGD1/AN10/RP40/SCL1/RB8
8AN4/CMP3B/IBIAS3/RA4 22 PGC1/AN11/RP41/SDA1/RB9
9AV
DD 23 VSS
10 AVSS 24 VDD
11 VDD 25 TMS/RP42/PWM3H/RB10(2)
12 VSS 26 TCK/RP43/PWM3L/RB11
13 OSCI/CLKI/AN5/RP32/RB0 27 TDI/RP44/PWM2H/RB12
14 OSCO/CLKO/AN6/RP33/RB1(3)28 RP45/PWM2L/RB13
Note 1: RPn represents remappable peripheral functions.
2: A pull-up resistor is connected to this pin during power-up and programming.
3: This pin is toggled during programming.
2017-2018 Microchip Technology Inc. DS70005349E-page 7
dsPIC33CK256MP508 FAMILY
Pin Diagrams (Continued)
36 35 34 33 32 31 30
10 11 12 13 14 15 16
3
22
21
20
19
4
5
7
1
2
24
23
6
25
8
9
17 18
26
27
2829
dsPIC33CKXXXMP503
dsPIC33CKXXXMP203
RB14
RB15
MCLR
RC0
RA0
RA1
RA2
RA3
RA4
AVDD
AVSS
RC1
RC2
VDD
VSS
RC3
RB0
RB2
RB3
RB4
VSS
VDD
RB5
RB6
RB7
RB8
RB9
RC4
RC5
VSS
VDD
RB10
RB11
RB12
RB13
RB1
Note 1: Shaded pins are up to 5 VDC tolerant.
2: The large center pad on the bottom of the package may be left floating or connected to VSS. The four-corner
anchor pads are internally connected to the large bottom pad, and therefore, must be connected to the same
net as the large center pad.
36-Pin UQFN(1,2)
TABLE 5: 36-PIN UQFN(1)
Pin # Function Pin # Function
1RP46/PWM1H/RB14 19 OA2OUT/AN1/AN7/ANA0/CMP1D/CMP2D/CMP3D/RP34/SCL3/INT0/RB2
2RP47/PWM1L/RB15 20 PGD2/OA2IN-/AN8/RP35/RB3
3MCLR 21 PGC2/OA2IN+/RP36/RB4
4AN12/ANN0/RP48/RC0 22 VSS
5OA1OUT/AN0/CMP1A/IBIAS0/RA0 23 VDD
6OA1IN-/ANA1/RA1 24 PGD3/RP37/PWM6L/SDA2/RB5
7OA1IN+/AN9/RA2 25 PGC3/RP38/PWM6H/SCL2/RB6
8DACOUT1/AN3/CMP1C/RA3 26 TDO/AN2/CMP3A/RP39/SDA3/RB7
9OA3OUT/AN4/CMP3B/IBIAS3/RA4 27 PGD1/AN10/RP40/SCL1/RB8
10 AVDD 28 PGC1/AN11/RP41/SDA1/RB9
11 AVSS 29 RP52/PWM5H/ASDA2/RC4
12 OA3IN-/AN13/CMP1B/ISRC0/RP49/RC1 30 RP53/PWM5L/ASCL2/RC5
13 OA3IN+/AN14/CMP2B/ISRC1/RP50/RC2 31 VSS
14 VDD 32 VDD
15 VSS 33 TMS/RP42/PWM3H/RB10(2)
16 AN15/CMP2A/IBIAS2/RP51/RC3 34 TCK/RP43/PWM3L/RB11
17 OSCI/CLKI/AN5/RP32/RB0 35 TDI/RP44/PWM2H/RB12
18 OSCO/CLKO/AN6/RP33/RB1(3)36 RP45/PWM2L/RB13
Note 1: RPn represents remappable peripheral functions.
2: A pull-up resistor is connected to this pin during power-up and programming.
3: This pin is toggled during programming.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 8 2017-2018 Microchip Technology Inc.
Pin Diagrams (Continued)
46 45 44 43 42 41 40 39 38
13 14 15 16 17 18 19 20 21 22
3
32
31
30
29
28
27
26
25
4
5
7
8
9
10
11
1
2
34
33
6
23
35
37
47
12
24
36
48
MCLR
dsPIC33CKXXXMP505
dsPIC33CKXXXMP205
RB14
RB15
RC12
RC13
RD13
RC0
RA0
RA1
RA2
RA3
RA4
AVDD
AVSS
RC1
RC2
RC6
VDD
VSS
RC3
RB0
RB1
RD10
RC7
RB2
RB3
RB4
RC8
RC9
RD8
VSS
VDD
RB5
RB6
RB7
RB8
RB9
RC4
RC5
RC10
RC11
VSS
VDD
RD1
RB10
RB11
RB12
RB13
Note 1: Shaded pins are up to 5 VDC tolerant.
2: The large center pad on the bottom of the package may be left floating or connected to VSS. The four-corner
anchor pads are internally connected to the large bottom pad, and therefore, must be connected to the same
net as the large center pad.
48-Pin TQFP, UQFN(1,2)
2017-2018 Microchip Technology Inc. DS70005349E-page 9
dsPIC33CK256MP508 FAMILY
TABLE 6: 48-PIN TQFP, UQFN(1)
Pin # Function Pin # Function
1RP46/PWM1H/RB14 25 OA2OUT/AN1/AN7/ANA0/CMP1D/CMP2D/CMP3D/RP34/SCL3/INT0/RB2
2RP47/PWM1L/RB15 26 PGD2/OA2IN-/AN8/RP35/RB3
3RP60/PWM8H/RC12 27 PGC2/OA2IN+/RP36/RB4
4RP61/PWM8L/RC13 28 RP56/ASDA1/SCK2/RC8
5MCLR 29 RP57/ASCL1/SDI2/RC9
6ANN2/RP77/RD13 30 RP72/SDO2/PCI19/RD8
7AN12/ANN0/RP48/RC0 31 VSS
8OA1OUT/AN0/CMP1A/IBIAS0/RA0 32 VDD
9OA1IN-/ANA1/RA1 33 PGD3/RP37/PWM6L/SDA2/RB5
10 OA1IN+/AN9/RA2 34 PGC3/RP38/PWM6H/SCL2/RB6
11 DACOUT1/AN3/CMP1C/RA3 35 TDO/AN2/CMP3A/RP39/SDA3/RB7
12 OA3OUT/AN4/CMP3B/IBIAS3/RA4 36 PGD1/AN10/RP40/SCL1/RB8
13 AVDD 37 PGC1/AN11/RP41/SDA1/RB9
14 AVSS 38 RP52/PWM5H/ASDA2/RC4
15 OA3IN-/AN13/CMP1B/ISRC0/RP49/RC1 39 RP53/PWM5L/ASCL2/RC5
16 OA3IN+/AN14/CMP2B/ISRC1/RP50/RC2 40 RP58/PWM7H/RC10
17 AN17/ANN1/IBIAS1/RP54/RC6 41 RP59/PWM7L/RC11
18 VDD 42 VSS
19 VSS 43 VDD
20 AN15/CMP2A/IBIAS2/RP51/RC3 44 RP65/PWM4H/RD1
21 OSCI/CLKI/AN5/RP32/RB0 45 TMS/RP42/PWM3H/RB10(2)
22 OSCO/CLKO/AN6/RP33/RB1(3)46 TCK/RP43/PWM3L/RB11
23 AN18/CMP3C/ISRC3/RP74/RD10 47 TDI/RP44/PWM2H/RB12
24 AN16/ISRC2/RP55/RC7 48 RP45/PWM2L/RB13
Note 1: RPn represents remappable peripheral functions.
2: A pull-up resistor is connected to this pin during power-up and programming.
3: This pin is toggled during programming.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 10 2017-2018 Microchip Technology Inc.
Pin Diagrams (Continued)
RB14
RB15
RC12
RC13
MCLR
RC0
RA0
RA1
RA2
RC14
RC15
RD15
VSS
VDD
RD14
RD13
64-Pin TQFP, QFN
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
48
47
22
44
24
25
26
27
28
29
30
31
32
1
46
45
23
43
42
41
40
39
63
62
61
59
60
58
57
56
54
55
53
52
51
49
50
38
37
34
36
35
33
17
19
20
21
18
64
RA4
AVDD
AVSS
RC1
RD12
RA3
RC2
RC6
VDD
VSS
RC3
RB0
RB1
RD11
RD10
RC7
RB2
RB3
RB4
RC8
RC9
RD9
RD8
Vss
VDD
RD7
RD6
RD5
RB5
RB6
RB7
RB8
RB9
RC4
RC5
RC10
RC11
RD4
RD3
VSS
VDD
RD2
RD1
RD0
RB10
RB11
RB12
RB13
dsPIC33CKXXXMP506
dsPIC33CKXXXMP206
Note: Shaded pins are up to 5 VDC tolerant.
2017-2018 Microchip Technology Inc. DS70005349E-page 11
dsPIC33CK256MP508 FAMILY
TABLE 7: 64-PIN TQFP, QFN(1)
Pin # Function Pin # Function
1RP46/PWM1H/PMD5/RB14 33 OA2OUT/AN1/AN7/ANA0/CMP1D/CMP2D/CMP3D/RP34/SCL3/INT0/RB2
2RP47/PWM1L/PMD6/RB15 34 PGD2/OA2IN-/AN8/RP35/RB3
3RP60/PWM8H/PMD7/RC12 35 PGC2/OA2IN+/RP36/RB4
4RP61/PWM8L/PMA5/RC13 36 RP56/ASDA1/SCK2/RC8
5RP62/PWM6H/PMA4/RC14 37 RP57/ASCL1/SDI2/RC9
6RP63/PWM6L/PMA3/RC15 38 RP73/PCI20/RD9
7MCLR 39 RP72/SDO2/PCI19/RD8
8RP79/PCI22/PMA2/RD15 40 VSS
9 VSS 41 VDD
10 VDD 42 RP71/PMD15/RD7
11 RP78/PCI21/RD14 43 RP70/PMD14/RD6
12 ANN2/RP77/RD13 44 RP69/PMA15/PMCS2/RD5
13 AN12/ANN0/RP48/RC0 45 PGD3/RP37/SDA2/PMA14/PMCS1/PSCS/RB5
14 OA1OUT/AN0/CMP1A/IBIAS0/RA0 46 PGC3/RP38/SCL2/RB6
15 OA1IN-/ANA1/RA1 47 TDO/AN2/CMP3A/RP39/SDA3/RB7
16 OA1IN+/AN9/PMA6/RA2 48 PGD1/AN10/RP40/SCL1/RB8
17 DACOUT1/AN3/CMP1C/RA3 49 PGC1/AN11/RP41/SDA1/RB9
18 OA3OUT/AN4/CMP3B/IBIAS3/RA4 50 RP52/PWM5H/ASDA2/RC4
19 AVDD 51 RP53/PWM5L/ASCL2/PMWR/PMENB/PSWR/RC5
20 AVss 52 RP58/PWM7H/PMRD/PMWR/PSRD/RC10
21 RP76/RD12 53 RP59/PWM7L/RC11
22 OA3IN-/AN13/CMP1B/ISRC0/RP49/PMA7/RC1 54 RP68/ASDA3/RD4
23 OA3IN+/AN14/CMP2B/ISRC1/RP50/PMD13/PMA13/RC2 55 RP67/ASCL3/RD3
24 AN17/ANN1/IBIAS1/RP54/PMD12/PMA12/RC6 56 VSS
25 VDD 57 VDD
26 VSS 58 RP66/RD2
27 AN15/CMP2A/IBIAS2/RP51/PMD11/PMA11/RC3 59 RP65/PWM4H/RD1
28 OSCI/CLKI/AN5/RP32/PMD10/PMA10/RB0 60 RP64/PWM4L/PMD0/RD0
29 OSCO/CLKO/AN6/RP33/PMA1/PMALH/PSA1/RB1(3)61 TMS/RP42/PWM3H/PMD1/RB10(2)
30 AN19/CMP2C/RP75/PMA0/PMALL/PSA0/RD11 62 TCK/RP43/PWM3L/PMD2/RB11
31 AN18/CMP3C/ISRC3/RP74/PMD9/PMA9/RD10 63 TDI/RP44/PWM2H/PMD3/RB12
32 AN16/ISRC2/RP55/PMD8/PMA8/RC7 64 RP45/PWM2L/PMD4/RB13
Note 1: RPn represents remappable peripheral functions.
2: A pull-up resistor is connected to this pin during power-up and programming.
3: This pin is toggled during programming.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 12 2017-2018 Microchip Technology Inc.
Pin Diagrams (Continued)
80-Pin TQFP
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
160
259
358
457
556
655
754
853
952
10 51
11 50
12 49
13 48
14 47
15 46
16 45
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
17
18
19
20
37
38
39
40
44
43
42
41
64
63
62
61
dsPIC33CKXXXMP508
dsPIC33CKXXXMP208
RB14
RE0
RB15
RE1
RC12
RC13
RC14
RC15
MCLR
RA2
RE3
RA1
RE2
RD15
VSS
RA0
RC0
RD13
RD14
VDD
RA3
RE4
RA4
RE5
AVDD
AVSS
RD12
RC1
RC2
RC6
VDD
VSS
RC3
RB0
RB1
RD11
RE6
RD10
RE7
RC7
RB2
RE8
RB3
RE9
RB4
RC8
RC9
RD9
RD8
VSS
VDD
RD7
RD6
RD5
RB5
RB6
RE10
RB7
RE11
RB8
RB9
RE12
RC4
RE13
RC5
RC10
RC11
RD4
RD3
VSS
VDD
RD2
RD1
RD0
RB10
RB11
RE14
RB12
RE15
RB13
Note: Shaded pins are up to 5 VDC tolerant.
2017-2018 Microchip Technology Inc. DS70005349E-page 13
dsPIC33CK256MP508 FAMILY
TABLE 8: 80-PIN TQFP(1)
Pin # Function Pin # Function
1RP46/PWM1H/PMD5/RB14 41 OA2OUT/AN1/AN7/ANA0/CMP1D/CMP2D/CMP3D/RP34/SCL3/INT0/RB2
2AN20/RE0 42 RE8
3RP47/PWM1L/PMD6/RB15 43 PGD2/OA2IN-/AN8/RP35/RB3
4AN21/RE1 44 RE9
5RP60/PWM8H/PMD7/RC12 45 PGC2/OA2IN+/RP36/RB4
6RP61/PWM8L/PMA5/RC13 46 RP56/ASDA1/SCK2/RC8
7RP62/PWM6H/PMA4/RC14 47 RP57/ASCL1/SDI2/RC9
8RP63/PWM6L/PMA3/RC15 48 RP73/PCI20/RD9
9MCLR 49 RP72/SDO2/PCI19/RD8
10 RP79/PCI22/PMA2/RD15 50 VSS
11 VSS 51 VDD
12 VDD 52 RP71/PMD15/RD7
13 RP78/PCI21/RD14 53 RP70/PMD14/RD6
14 ANN2/RP77/RD13 54 RP69/PMA15/PMCS2/RD5
15 AN12/ANN0/RP48/RC0 55 PGD3/RP37/SDA2/PMA14/PMCS1/PSCS/RB5
16 OA1OUT/AN0/CMP1A/IBIAS0/RA0 56 PGC3/RP38/SCL2/RB6
17 AN22/RE2 57 RE10
18 OA1IN-/ANA1/RA1 58 TDO/AN2/CMP3A/RP39/SDA3/RB7
19 AN23/RE3 59 RE11
20 OA1IN+/AN9/PMA6/RA2 60 PGD1/AN10/RP40/SCL1/RB8
21 DACOUT1/AN3/CMP1C/RA3 61 PGC1/AN11/RP41/SDA1/RB9
22 RE4 62 RE12
23 OA3OUT/AN4/CMP3B/IBIAS3/RA4 63 RP52/PWM5H/ASDA2/RC4
24 RE5 64 RE13
25 AVDD 65 RP53/PWM5L/ASCL2/PMWR/PMENB/PSWR/RC5
26 AVss 66 RP58/PWM7H/PMRD/PMWR/PSRD/RC10
27 RP76/RD12 67 RP59/PWM7L/RC11
28 OA3IN-/AN13/CMP1B/ISRC0/RP49/PMA7/RC1 68 RP68/ASDA3/RD4
29 OA3IN+/AN14/CMP2B/ISRC1/RP50/PMD13/PMA13/RC2 69 RP67/ASCL3/RD3
30 AN17/ANN1/IBIAS1/RP54/PMD12/PMA12/RC6 70 VSS
31 VDD 71 VDD
32 VSS 72 RP66/RD2
33 AN15/CMP2A/IBIAS2/RP51/PMD11/PMA11/RC3 73 RP65/PWM4H/RD1
34 OSCI/CLKI/AN5/RP32/PMD10/PMA10/RB0 74 RP64/PWM4L/PMD0/RD0
35 OSCO/CLKO/AN6/RP33/PMA1/PMALH/PSA1/RB1(3)75 TMS/RP42/PWM3H/PMD1/RB10(2)
36 AN19/CMP2C/RP75/PMA0/PMALL/PSA0/RD11 76 TCK/RP43/PWM3L/PMD2/RB11
37 RE6 77 RE14
38 AN18/CMP3C/ISRC3/RP74/PMD9/PMA9/RD10 78 TDI/RP44/PWM2H/PMD3/RB12
39 RE7 79 RE15
40 AN16/ISRC2/RP55/PMD8/PMA8/RC7 80 RP45/PWM2L/PMD4/RB13
Note 1: RPn represents remappable peripheral functions.
2: A pull-up resistor is connected to this pin during power-up and programming.
3: This pin is toggled during programming.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 14 2017-2018 Microchip Technology Inc.
Table of Contents
1.0 Device Overview ........................................................................................................................................................................ 17
2.0 Guidelines for Getting Started with 16-Bit Digital Signal Controllers.......................................................................................... 23
3.0 CPU............................................................................................................................................................................................ 29
4.0 Memory Organization ................................................................................................................................................................. 41
5.0 Flash Program Memory.............................................................................................................................................................. 79
6.0 Resets ........................................................................................................................................................................................ 95
7.0 Interrupt Controller ..................................................................................................................................................................... 99
8.0 I/O Ports ................................................................................................................................................................................... 119
9.0 Oscillator with High-Frequency PLL ......................................................................................................................................... 183
10.0 Direct Memory Access (DMA) Controller ................................................................................................................................. 207
11.0 Controller Area Network (CAN FD) Module ............................................................................................................................. 217
12.0 High-Resolution PWM with Fine Edge Placement ................................................................................................................... 261
13.0 High-Speed, 12-Bit Analog-to-Digital Converter (ADC)............................................................................................................ 295
14.0 High-Speed Analog Comparator with Slope Compensation DAC............................................................................................ 323
15.0 Quadrature Encoder Interface (QEI) ........................................................................................................................................ 335
16.0 Universal Asynchronous Receiver Transmitter (UART) ........................................................................................................... 355
17.0 Serial Peripheral Interface (SPI)............................................................................................................................................... 377
18.0 Inter-Integrated Circuit (I2C) ..................................................................................................................................................... 395
19.0 Parallel Master Port (PMP)....................................................................................................................................................... 405
20.0 Single-Edge Nibble Transmission (SENT) ............................................................................................................................... 419
21.0 Timer1 ...................................................................................................................................................................................... 429
22.0 Capture/Compare/PWM/Timer Modules (SCCP/MCCP) ......................................................................................................... 433
23.0 Configurable Logic Cell (CLC).................................................................................................................................................. 447
24.0 Peripheral Trigger Generator (PTG)......................................................................................................................................... 459
25.0 32-Bit Programmable Cyclic Redundancy Check (CRC) Generator ....................................................................................... 475
26.0 Current Bias Generator (CBG)................................................................................................................................................. 479
27.0 Operational Amplifier................................................................................................................................................................ 483
28.0 Deadman Timer (DMT) ........................................................................................................................................................... 487
29.0 Power-Saving Features ............................................................................................................................................................ 495
30.0 Special Features ...................................................................................................................................................................... 507
31.0 Instruction Set Summary .......................................................................................................................................................... 533
32.0 Development Support............................................................................................................................................................... 543
33.0 Electrical Characteristics .......................................................................................................................................................... 547
34.0 Packaging Information.............................................................................................................................................................. 583
Appendix A: Revision History............................................................................................................................................................. 609
Index ................................................................................................................................................................................................. 611
The Microchip Website....................................................................................................................................................................... 619
Customer Change Notification Service .............................................................................................................................................. 619
Customer Support .............................................................................................................................................................................. 619
Product Identification System............................................................................................................................................................. 621
2017-2018 Microchip Technology Inc. DS70005349E-page 15
dsPIC33CK256MP508 FAMILY
TO OUR VALUED CUSTOMERS
It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip
products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and
enhanced as new volumes and updates are introduced.
If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via
E-mail at docerrors@microchip.com. We welcome your feedback.
Most Current Data Sheet
To obtain the most up-to-date version of this data sheet, please register at our Worldwide Website at:
http://www.microchip.com
You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page.
The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000).
Errata
An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current
devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision
of silicon and revision of document to which it applies.
To determine if an errata sheet exists for a particular device, please check with one of the following:
• Microchip’s Worldwide Website; http://www.microchip.com
• Your local Microchip sales office (see last page)
When contacting a sales office, please specify which device, revision of silicon and data sheet (include literature number) you are
using.
Customer Notification System
Register on our website at www.microchip.com to receive the most current information on all of our products.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 16 2017-2018 Microchip Technology Inc.
Referenced Sources
This device data sheet is based on the following
individual chapters of the “dsPIC33/PIC24 Family
Reference Manual”. These documents should be
considered as the general reference for the operation
of a particular module or device feature.
•“Introduction” (www.microchip.com/DS70573)
•“dsPIC33E Enhanced CPU” (www.microchip.com/DS70005158)
•“dsPIC33E/PIC24E Program Memory” (www.microchip.com/DS70000613)
•“Data Memory” (www.microchip.com/DS70595)
•“Dual Partition Flash Program Memory” (www.microchip.com/DS70005156)
•“Flash Programming” (www.microchip.com/DS70609)
•“Reset” (www.microchip.com/DS70602)
•“Interrupts” (www.microchip.com/DS70000600)
•“I/O Ports with Edge Detect” (www.microchip.com/DS70005322)
•“Oscillator Module with High-Speed PLL” (www.microchip.com/DS70005255)
•“Direct Memory Access Controller (DMA)” (www.microchip.com/DS39742)
•“CAN Flexible Data-Rate (FD) Protocol Module” (www.microchip.com/DS70005340)
•“High-Resolution PWM with Fine Edge Placement” (www.microchip.com/DS70005320)
•“12-Bit High-Speed, Multiple SARs A/D Converter (ADC)” (www.microchip.com/DS70005213)
•“High-Speed Analog Comparator Module” (www.microchip.com/DS70005280)
•“Quadrature Encoder Interface (QEI)” (www.microchip.com/DS70000601)
•“Multiprotocol Universal Asynchronous Receiver Transmitter (UART) Module” (www.microchip.com/DS70005288)
•“Serial Peripheral Interface (SPI) with Audio Codec Support” (www.microchip.com/DS70005136)
•“Inter-Integrated Circuit (I2C)” (www.microchip.com/DS70000195)
•“Parallel Master Port (PMP)” (www.microchip.com/DS70005344)
•“Single-Edge Nibble Transmission (SENT) Module” (www.microchip.com/DS70005145)
•“Timer1 Module” (www.microchip.com/DS70005279)
•“Capture/Compare/PWM/Timer (MCCP and SCCP)” (www.microchip.com/DS33035)
•“Configurable Logic Cell (CLC)” (www.microchip.com/DS70005298)
•“Peripheral Trigger Generator (PTG)” (www.microchip.com/DS70000669)
•“32-Bit Programmable Cyclic Redundancy Check (CRC)” (www.microchip.com/DS30009729)
•“Current Bias Generator (CBG)” (www.microchip.com/DS70005253)
•“Deadman Timer” (www.microchip.com/DS70005155)
•“Watchdog Timer and Power-Saving Modes” (www.microchip.com/DS70615)
•“CodeGuard™ Security” (www.microchip.com/DS70634)
•“Dual Watchdog Timer” (www.microchip.com/DS70005250)
•“Programming and Diagnostics” (www.microchip.com/DS70608)
Note 1: To access the documents listed below,
browse to the documentation section of the
dsPIC33CK256MP508 product page of the
Microchip website (www.microchip.com) or
select a family reference manual section
from the following list.
In addition to parameters, features and
other documentation, the resulting page
provides links to the related family
reference manual sections.
2017-2018 Microchip Technology Inc. DS70005349E-page 17
dsPIC33CK256MP508 FAMILY
1.0 DEVICE OVERVIEW This document contains device-specific information
for the dsPIC33CK256MP508 Digital Signal Controller
(DSC) and Microcontroller (MCU) devices.
dsPIC33CK256MP508 devices contain extensive
Digital Signal Processor (DSP) functionality with a
high-performance, 16-bit MCU architecture.
Figure 1-1 shows a general block diagram of the core
and peripheral modules of the dsPIC33CK256MP508
family. Tab l e 1-1 lists the functions of the various pins
shown in the pinout diagrams.
FIGURE 1-1: dsPIC33CK256MP508 FAMILY BLOCK DIAGRAM(1)
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a com-
prehensive resource. To complement the
information in this data sheet, refer to
the related section of the “dsPIC33/
PIC24 Family Reference Manual”,
which is available from the Microchip
website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
Note 1: The numbers in the parentheses are the number of instantiations of the module indicated.
2: Not all I/O pins or features are implemented on all device pinout configurations.
3: Some peripheral I/Os are only accessible through Peripheral Pin Select (PPS).
4: 28-lead devices have only two op amp instances.
PORTA(2)
Power-up
Timer
Oscillator
Start-up
OSC1/CLKI
MCLR
VDD, VSS
UART (3)
Timing
Generation
I2C (3)
ADC (1)
DAC/
DMA (4) SCCP (9)
AVDD, AVSS
SPI/I2S
Watchdog
Timer
POR/BOR
Timer1
Remappable
Pins(3)
QEI (2)
CPU
Refer to Figure 3-1 for CPU diagram details. 16
16
PORTB(2)
PORTC(2)
PORTD(2)
Ports
Peripheral Modules
Timer
CRC (1) HR PWM
(8) Comparator
SENT (2)
PTG (1)
CAN FD
PORTE(2)
CLC (4)
WDT/
(1)
DMT (3) (3)
(1)
PMP (1)
OP AMP
(3)(4)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 18 2017-2018 Microchip Technology Inc.
TABLE 1-1: PINOUT I/O DESCRIPTIONS
Pin Name(1)Pin
Type
Buffer
Type PPS Description
AN0-AN23
ANA0-ANA1
ANN0-ANN2
I
I
I
Analog
Analog
Analog
No
No
No
Analog input channels
Analog alternate inputs
Analog negative inputs
ADTRG I ST Yes ADC Trigger Input 31
CLKI
CLKO
I
O
ST/
CMOS
—
No
No
External Clock (EC) source input. Always associated with OSCI pin
function.
Oscillator crystal output. Connects to crystal or resonator in Crystal
Oscillator mode. Optionally functions as CLKO in RC and EC
modes. Always associated with OSCO pin function.
OSCI
OSCO
I
I/O
ST/
CMOS
—
No
No
Oscillator crystal input. ST buffer when configured in RC mode;
CMOS otherwise.
Oscillator crystal output. Connects to crystal or resonator in Crystal
Oscillator mode. Optionally functions as CLKO in RC and EC
modes.
REFCLKO
REFOI
O
I
—
ST
Yes
Yes
Reference clock output
Reference clock input
INT0
INT1
INT2
INT3
I
I
I
I
ST
ST
ST
ST
No
Yes
Yes
Yes
External Interrupt 0
External Interrupt 1
External Interrupt 2
External Interrupt 3
IOCA<4:0>
IOCB<15:0>
IOCC<15:0>
IOCD<15:0>
IOCE<15:0>
I
I
I
I
I
ST
ST
ST
ST
ST
No
No
No
No
No
Interrupt-on-Change input for PORTA
Interrupt-on-Change input for PORTB
Interrupt-on-Change input for PORTC
Interrupt-on-Change input for PORTD
Interrupt-on-Change input for PORTE
RP32-RP71 I/O ST Yes Remappable I/O ports
RA0-RA4 I/O ST No PORTA is a bidirectional I/O port
RB0-RB15 I/O ST No PORTB is a bidirectional I/O port
RC0-RC15 I/O ST No PORTC is a bidirectional I/O port
RD0-RD15 I/O ST No PORTD is a bidirectional I/O port
RE0-RE15 I/O ST No PORTE is a bidirectional I/O port
T1CK I ST Yes Timer1 external clock input
CAN1RX
CAN1
I
O
ST
—
Yes
Yes
CAN1 receive input
CAN1 transmit output
U1CTS
U1RTS
U1RX
U1TX
U1DSR
U1DTR
I
O
I
O
I
O
ST
—
ST
—
ST
—
Yes
Yes
Yes
Yes
Yes
Yes
UART1 Clear-to-Send
UART1 Request-to-Send
UART1 receive
UART1 transmit
UART1 Data-Set-Ready
UART1 Data-Terminal-Ready
Legend: CMOS = CMOS compatible input or output Analog = Analog input P = Power
ST = Schmitt Trigger input with CMOS levels O = Output I = Input
PPS = Peripheral Pin Select TTL = TTL input buffer DIG = Digital
Note 1: Not all pins are available in all package variants. See the “Pin Diagrams” section for pin availability.
2: PWM4L and PWM4H pins are available on PPS as well as dedicated.
3: SPI2 supports dedicated pins as well as PPS on 48, 64 and 80-pin devices.
4: Only 48, 64 and 80-pin devices have all eight PWM output pairs on dedicated pins. Refer to the “Pin
Diagrams” for PWM pin availability on other packages.
2017-2018 Microchip Technology Inc. DS70005349E-page 19
dsPIC33CK256MP508 FAMILY
U2CTS
U2RTS
U2RX
U2TX
U2DSR
U2DTR
I
O
I
O
I
O
ST
—
ST
—
ST
—
Yes
Yes
Yes
Yes
Yes
Yes
UART2 Clear-to-Send
UART2 Request-to-Send
UART2 receive
UART2 transmit
UART2 Data-Set-Ready
UART2 Data-Terminal-Ready
U3CTS
U3RTS
U3RX
U3TX
U3DSR
U3DTR
I
O
I
O
I
O
ST
—
ST
—
ST
—
Yes
Yes
Yes
Yes
Yes
Yes
UART3 Clear-to-Send
UART3 Request-to-Send
UART3 receive
UART3 transmit
UART3 Data-Set-Ready
UART3 Data-Terminal-Ready
SCK1
SDI1
SDO1
SS1
I/O
I
O
I/O
ST
ST
—
ST
Yes
Yes
Yes
Yes
Synchronous serial clock input/output for SPI1
SPI1 data in
SPI1 data out
SPI1 slave synchronization or frame pulse I/O
SCK2
SDI2
SDO2
SS2
I/O
I
O
I/O
ST
ST
—
ST
Yes(3)
Yes(3)
Yes(3)
Yes(3)
Synchronous serial clock input/output for SPI2
SPI2 data in
SPI2 data out
SPI2 slave synchronization or frame pulse I/O
SCK3
SDI3
SDO3
SS3
I/O
I
O
I/O
ST
ST
—
ST
Yes
Yes
Yes
Yes
Synchronous serial clock input/output for SPI3
SPI3 data in
SPI3 data out
SPI3 slave synchronization or frame pulse I/O
SCL1
SDA1
ASCL1
ASDA1
I/O
I/O
I/O
I/O
ST
ST
ST
ST
No
No
No
No
Synchronous serial clock input/output for I2C1
Synchronous serial data input/output for I2C1
Alternate synchronous serial clock input/output for I2C1
Alternate synchronous serial data input/output for I2C1
SCL2
SDA2
ASCL2
ASDA2
I/O
I/O
I/O
I/O
ST
ST
ST
ST
No
No
No
No
Synchronous serial clock input/output for I2C2
Synchronous serial data input/output for I2C2
Alternate synchronous serial clock input/output for I2C2
Alternate synchronous serial data input/output for I2C2
SCL3
SDA3
ASCL3
ASDA3
I/O
I/O
I/O
I/O
ST
ST
ST
ST
No
No
No
No
Synchronous serial clock input/output for I2C3
Synchronous serial data input/output for I2C3
Alternate synchronous serial clock input/output for I2C3
Alternate synchronous serial data input/output for I2C3
QEIA1-QEIA2
QEIB1-QEIB2
QEINDX1-QEINDX2
QEIHOM1-QEIHOM2
QEICMP1-QEICMP2
I
I
I
I
O
ST
ST
ST
ST
—
Yes
Yes
Yes
Yes
Yes
QEI Inputs A1 and A2
QEI Inputs B1 and B2
QEI Index Inputs 1 and 2
QEI Home Inputs 1 and 2
QEI Comparator Outputs 1 and 2
SENT1-SENT2
SENT1OUT-SENT2OUT
I
O
ST
—
Yes
Yes
SENT1 and SENT2 inputs
SENT1 and SENT2 outputs
TABLE 1-1: PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name(1)Pin
Type
Buffer
Type PPS Description
Legend: CMOS = CMOS compatible input or output Analog = Analog input P = Power
ST = Schmitt Trigger input with CMOS levels O = Output I = Input
PPS = Peripheral Pin Select TTL = TTL input buffer DIG = Digital
Note 1: Not all pins are available in all package variants. See the “Pin Diagrams” section for pin availability.
2: PWM4L and PWM4H pins are available on PPS as well as dedicated.
3: SPI2 supports dedicated pins as well as PPS on 48, 64 and 80-pin devices.
4: Only 48, 64 and 80-pin devices have all eight PWM output pairs on dedicated pins. Refer to the “Pin
Diagrams” for PWM pin availability on other packages.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 20 2017-2018 Microchip Technology Inc.
TMS
TCK
TDI
TDO
I
I
I
O
ST
ST
ST
—
No
No
No
No
JTAG Test mode select pin
JTAG test clock input pin
JTAG test data input pin
JTAG test data output pin
PCI8-PCI18
PCI19-PCI22
PWM1L-PWM8L(2)
PWM1H-PWM8H(2)
PWMEA-PWMED
I
I
O
O
O
ST
ST
—
—
—
Yes
No
No(4)
No(4)
Yes
PWM PCI Inputs 8 through 18
PWM PCI Inputs 19 through 22
PWM Low Outputs 1 through 8
PWM High Outputs 1 through 8
PWM Event Outputs A through D
CMP1A-CMP3A
CMP1B-CMP3B
CMP1C-CMP3C
CMP1D-CMP3D
I
I
I
I
Analog
Analog
Analog
Analog
No
No
No
No
Comparator Channels 1A through 3A inputs
Comparator Channels 1B through 3B inputs
Comparator Channels 1C through 3C inputs
Comparator Channels 1D through 3D inputs
DACOUT1 O — No DAC output voltage
TCKI1-TCKI9
ICM1-ICM9
OCFA-OCFD
OCM1-OCM9
I
I
O
O
ST
ST
—
—
Yes
Yes
Yes
Yes
SCCP/MCCP Timer Inputs 1 through 9
SCCP/MCCP Capture Inputs 1 through 9
SCCP/MCCP Fault Inputs A through D
SCCP/MCCP Compare Outputs 1 through 9
IBIAS0-IBIAS3
ISRC0-ISRC3
O
O
Analog
Analog
No
No
50 µA Constant-Current Outputs 0 through 3
10 µA Constant-Current Outputs 0 through 3
OA1IN+
OA1IN-
OA1OUT
OA2IN+
OA2IN-
OA2OUT
OA3IN+
OA3IN-
OA3OUT
I
I
O
I
I
O
I
I
O
—
—
—
—
—
—
—
—
—
No
No
No
No
No
No
No
No
No
Op Amp 1+ Input
Op Amp 1- Input
Op Amp 1 Output
Op Amp 2+ Input
Op Amp 2- Input
Op Amp 2 Output
Op Amp 3+ Input
Op Amp 3- Input
Op Amp 3 Output
PMA0/PMALL
PMA1/PMALH
PMA14/PMCS1
PMA15/PMCS2
PMA2-PMA13
PMD0-PMD15
PMRD/PMWR
PMWR/PMENB
PSA0
PSA1
PSCS
PSRD
PSWR
O
O
O
O
O
I/O
O
O
I
I
I
I
I
ST/TTL
ST/TTL
ST/TTL
ST/TTL
ST/TTL
ST/TTL
ST/TTL
ST/TTL
ST/TTL
ST/TTL
ST/TTL
ST/TTL
ST/TTL
No
No
No
No
No
No
No
No
No
No
No
No
No
PMP Address 0 or address latch low
PMP Address 1 or address latch high
PMP Address 14 or Chip Select 1
PMP Address 15 or Chip Select 2
PMP Address Lines 2-13
PMP Data Lines 0-15
PMP read or read/write signal
PMP write or data enable signal
PMP Slave Address 0
PMP Slave Address 1
PMP slave chip select
PMP slave write
PMP slave read
CLCINA-CLCIND
CLC1OUT-CLC4OUT
I
O
ST
—
Yes
Yes
CLC Inputs A through D
CLC Outputs 1 through 4
TABLE 1-1: PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name(1)Pin
Type
Buffer
Type PPS Description
Legend: CMOS = CMOS compatible input or output Analog = Analog input P = Power
ST = Schmitt Trigger input with CMOS levels O = Output I = Input
PPS = Peripheral Pin Select TTL = TTL input buffer DIG = Digital
Note 1: Not all pins are available in all package variants. See the “Pin Diagrams” section for pin availability.
2: PWM4L and PWM4H pins are available on PPS as well as dedicated.
3: SPI2 supports dedicated pins as well as PPS on 48, 64 and 80-pin devices.
4: Only 48, 64 and 80-pin devices have all eight PWM output pairs on dedicated pins. Refer to the “Pin
Diagrams” for PWM pin availability on other packages.
2017-2018 Microchip Technology Inc. DS70005349E-page 21
dsPIC33CK256MP508 FAMILY
ADTRG31 I ST No External ADC trigger source
PGD1
PGC1
PGD2
PGC2
PGD3
PGC3
I/O
I
I/O
I
I/O
I
ST
ST
ST
ST
ST
ST
No
No
No
No
No
No
Data I/O pin for Programming/Debugging Communication Channel 1
Clock input pin for Programming/Debugging Communication
Channel 1
Data I/O pin for Programming/Debugging Communication Channel 2
Clock input pin for Programming/Debugging Communication
Channel 2
Data I/O pin for Programming/Debugging Communication Channel 3
Clock input pin for Programming/Debugging Communication
Channel 3
MCLR I/P ST No Master Clear (Reset) input. This pin is an active-low Reset to the
device.
AVDD P P No Positive supply for analog modules. This pin must be connected at all
times.
AVSS P P No Ground reference for analog modules. This pin must be connected at
all times.
VDD P — No Positive supply for peripheral logic and I/O pins
VSS P — No Ground reference for logic and I/O pins
TABLE 1-1: PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name(1)Pin
Type
Buffer
Type PPS Description
Legend: CMOS = CMOS compatible input or output Analog = Analog input P = Power
ST = Schmitt Trigger input with CMOS levels O = Output I = Input
PPS = Peripheral Pin Select TTL = TTL input buffer DIG = Digital
Note 1: Not all pins are available in all package variants. See the “Pin Diagrams” section for pin availability.
2: PWM4L and PWM4H pins are available on PPS as well as dedicated.
3: SPI2 supports dedicated pins as well as PPS on 48, 64 and 80-pin devices.
4: Only 48, 64 and 80-pin devices have all eight PWM output pairs on dedicated pins. Refer to the “Pin
Diagrams” for PWM pin availability on other packages.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 22 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 23
dsPIC33CK256MP508 FAMILY
2.0 GUIDELINES FOR GETTING
STARTED WITH 16-BIT DIGITAL
SIGNAL CONTROLLERS
2.1 Basic Connection Requirements
Getting started with the family devices of the
dsPIC33CK256MP508 requires attention to a minimal
set of device pin connections before proceeding with
development. The following is a list of pin names which
must always be connected:
•All V
DD and VSS pins
(see Section 2.2 “Decoupling Capacitors”)
•All AV
DD and AVSS pins
regardless if ADC module is not used (see
Section 2.2 “Decoupling Capacitors”)
•M
CLR pin
(see Section 2.3 “Master Clear (MCLR) Pin”)
• PGCx/PGDx pins
used for In-Circuit Serial Programming™ (ICSP™)
and debugging purposes (see Section 2.4 “ICSP
Pins”)
• OSCI and OSCO pins
when an external oscillator source is used (see
Section 2.5 “External Oscillator Pins”)
2.2 Decoupling Capacitors
The use of decoupling capacitors on every pair of
power supply pins, such as VDD, VSS, AVDD and
AVSS is required.
Consider the following criteria when using decoupling
capacitors:
•Value and type of capacitor: Recommendation
of 0.1 µF (100 nF), 10-20V. This capacitor should
be a low-ESR and have resonance frequency in
the range of 20 MHz and higher. It is
recommended to use ceramic capacitors.
•Placement on the printed circuit board: The
decoupling capacitors should be placed as close
to the pins as possible. It is recommended to
place the capacitors on the same side of the
board as the device. If space is constricted, the
capacitor can be placed on another layer on the
PCB using a via; however, ensure that the trace
length from the pin to the capacitor is within
one-quarter inch (6 mm) in length.
•Handling high-frequency noise: If the board is
experiencing high-frequency noise, above tens of
MHz, add a second ceramic-type capacitor in
parallel to the above described decoupling
capacitor. The value of the second capacitor can
be in the range of 0.01 µF to 0.001 µF. Place this
second capacitor next to the primary decoupling
capacitor. In high-speed circuit designs, consider
implementing a decade pair of capacitances as
close to the power and ground pins as possible.
For example, 0.1 µF in parallel with 0.001 µF.
•Maximizing performance: On the board layout
from the power supply circuit, run the power and
return traces to the decoupling capacitors first,
and then to the device pins. This ensures that the
decoupling capacitors are first in the power chain.
Equally important is to keep the trace length
between the capacitor and the power pins to a
minimum, thereby reducing PCB track
inductance.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 24 2017-2018 Microchip Technology Inc.
FIGURE 2-1: RECOMMENDED
MINIMUM CONNECTION
2.2.1 BULK CAPACITORS
On boards with power traces running longer than six
inches in length, it is suggested to use a bulk capacitor
for integrated circuits, including DSCs, to supply a local
power source. The value of the bulk capacitor should
be determined based on the trace resistance that
connects the power supply source to the device and
the maximum current drawn by the device in the
application. In other words, select the bulk capacitor so
that it meets the acceptable voltage sag at the device.
Typical values range from 4.7 µF to 47 µF.
2.3 Master Clear (MCLR) Pin
The MCLR pin provides two specific device
functions:
• Device Reset
• Device Programming and Debugging.
During device programming and debugging, the
resistance and capacitance that can be added to the
pin must be considered. Device programmers and
debuggers drive the MCLR pin. Consequently,
specific voltage levels (VIH and VIL) and fast signal
transitions must not be adversely affected. Therefore,
specific values of R and C will need to be adjusted
based on the application and PCB requirements.
For example, as shown in Figure 2-2, it is
recommended that the capacitor, C, be isolated from
the MCLR pin during programming and debugging
operations.
Place the components, as shown in Figure 2-2,
within one-quarter inch (6 mm) from the MCLR pin.
FIGURE 2-2: EXAMPLE OF MCLR PIN
CONNECTIONS
Note 1: As an option, instead of a hard-wired connection, an
inductor (L1) can be substituted between VDD and
AVDD to improve ADC noise rejection. The inductor
impedance should be less than 1 and the inductor
capacity greater than 10 mA.
Where:
fFCNV
2
--------------=
f1
2LC
-----------------------=
L1
2fC
----------------------
2
=
(i.e., ADC Conversion Rate/2)
dsPIC33
VDD
VSS
VDD
VSS
VSS
VDD
AVDD
AVSS
VDD
VSS
0.1 µF
Ceramic
0.1 µF
Ceramic
0.1 µF
Ceramic
0.1 µF
Ceramic
C
R
VDD
MCLR
0.1 µF
Ceramic
L1(1)
R1
C
R1(2)
R(1)
VDD
MCLR
dsPIC33
JP
Note 1: R 10 k is recommended. A suggested
starting value is 10 k. Ensure that the
MCLR pin VIH and VIL specifications are met.
2: R1 470 will limit any current flowing into
MCLR from the external capacitor, C, in the
event of MCLR pin breakdown due to
Electrostatic Discharge (ESD) or Electrical
Overstress (EOS). Ensure that the MCLR pin
VIH and VIL specifications are met.
2017-2018 Microchip Technology Inc. DS70005349E-page 25
dsPIC33CK256MP508 FAMILY
2.4 ICSP Pins
The PGCx and PGDx pins are used for ICSP and
debugging purposes. It is recommended to keep the
trace length between the ICSP connector and the ICSP
pins on the device as short as possible. If the ICSP con-
nector is expected to experience an ESD event, a
series resistor is recommended, with the value in the
range of a few tens of Ohms, not to exceed 100 Ohms.
Pull-up resistors, series diodes and capacitors on the
PGCx and PGDx pins are not recommended as they
will interfere with the programmer/debugger communi-
cations to the device. If such discrete components are
an application requirement, they should be removed
from the circuit during programming and debugging.
Alternatively, refer to the AC/DC characteristics and
timing requirements information in the respective
device Flash programming specification for information
on capacitive loading limits and pin Voltage Input High
(VIH) and Voltage Input Low (VIL) requirements.
Ensure that the “Communication Channel Select” (i.e.,
PGCx/PGDx pins) programmed into the device
matches the physical connections for the ICSP to
PICkit™ 3, MPLAB® ICD 3 or MPLAB REAL ICE™
emulator.
For more information on MPLAB ICD 2, MPLAB ICD 3
and REAL ICE emulator connection requirements,
refer to the following documents that are available on
the Microchip website.
•“Using MPLAB® ICD 3 In-Circuit Debugger”
(poster) (DS51765)
•“Development Tools Design Advisory” (DS51764)
•“MPLAB® REAL ICE™ In-Circuit Emulator User’s
Guide” (DS51616)
•“Using MPLAB® REAL ICE™ In-Circuit Emulator”
(poster) (DS51749)
2.5 External Oscillator Pins
Many DSCs have options for at least two oscillators: a
high-frequency Primary Oscillator (POSC) and a
low-frequency Secondary Oscillator (SOSC). For
details, see Section 9.2 “Primary Oscillator
(POSC)”.
The oscillator circuit should be placed on the same
side of the board as the device. Also, place the oscil-
lator circuit close to the respective oscillator pins, not
exceeding one-half inch (12 mm) distance between
them. The load capacitors should be placed next to
the oscillator itself, on the same side of the board.
Use a grounded copper pour around the oscillator
circuit to isolate them from surrounding circuits. The
grounded copper pour should be routed directly to the
MCU ground. Do not run any signal traces or power
traces inside the ground pour. Also, if using a
two-sided board, avoid any traces on the other side of
the board where the crystal is placed. A suggested
layout is shown in Figure 2-3.
FIGURE 2-3: SUGGESTED PLACEMENT
OF THE OSCILLATOR
CIRCUIT
Main Oscillator
Guard Ring
Guard Trace
Oscillator Pins
dsPIC33CK256MP508 FAMILY
DS70005349E-page 26 2017-2018 Microchip Technology Inc.
2.6 Oscillator Value Conditions on
Device Start-up
If the PLL of the target device is enabled and
configured for the device start-up oscillator, the
maximum oscillator source frequency must be limited
to a certain frequency (see Section 9.0 “Oscillator
with High-Frequency PLL”) to comply with device
PLL start-up conditions. This means that if the external
oscillator frequency is outside this range, the applica-
tion must start up in the FRC mode first. The default
PLL settings after a POR with an oscillator frequency
outside this range will violate the device operating
speed.
Once the device powers up, the application firmware
can initialize the PLL SFRs, CLKDIV and PLLFBD, to a
suitable value, and then perform a clock switch to the
Oscillator + PLL clock source. Note that clock switching
must be enabled in the device Configuration Word.
2.7 Unused I/Os
Unused I/O pins should be configured as outputs and
driven to a logic low state.
Alternatively, connect a 1k to 10k resistor between VSS
and unused pins, and drive the output to logic low.
2.8 Targeted Applications
• Power Factor Correction (PFC):
- Interleaved PFC
- Critical Conduction PFC
- Bridgeless PFC
• DC/DC Converters:
- Buck, Boost, Forward, Flyback, Push-Pull
- Half/Full-Bridge
- Phase-Shift Full-Bridge
- Resonant Converters
• DC/AC:
- Half/Full-Bridge Inverter
- Resonant Inverter
• Motor Control
-BLDC
-PMSM
-SR
-ACIM
Examples of typical application connections are shown
in Figure 2-4 through Figure 2-6.
FIGURE 2-4: INTERLEAVED PFC
VAC
VOUT+
ADC Channel
PWM ADCPWM
|VAC|
k4k3
FET
dsPIC33CK256MP508
Driver
VOUT-
ADC Channel
ADC
Channel Channel
ADC
Channel
k2
FET
Driver
k1
2017-2018 Microchip Technology Inc. DS70005349E-page 27
dsPIC33CK256MP508 FAMILY
FIGURE 2-5: PHASE-SHIFTED FULL-BRIDGE CONVERTER
VIN+
VIN-
S1
Gate 4
Gate 2
Gate 3
Gate 1
Analog
Ground
VOUT+
VOUT-
k2
FET
Driver
k1
FET
Driver
FET
Driver
Gate 1
Gate 2
S1 Gate 3
Gate 4
S3
S3
Gate 6
Gate 5
Gate 6
Gate 5
dsPIC33CK256MP508
PWM
PWM ADC
Channel
PWM ADC
Channel
dsPIC33CK256MP508 FAMILY
DS70005349E-page 28 2017-2018 Microchip Technology Inc.
FIGURE 2-6: OFF-LINE UPS
ADC
ADC
ADC
ADC
ADC
PWM PWMPWM
dsPIC33CK256MP508
PWM PWM PWM
FET
Driver k2k1
FET
Driver FET
Driver FET
Driver FET
Driver k4k5
V
BAT
GND
+
V
OUT
+
V
OUT
-
Full-Bridge Inverter
Push-Pull Converter VDC
GND
FET
Driver
ADC PWM
k3
k6
or
Analog Comp.
Battery Charger
+
FET
Driver
2017-2018 Microchip Technology Inc. DS70005349E-page 29
dsPIC33CK256MP508 FAMILY
3.0 CPU
The dsPIC33CK256MP508 family CPU has a 16-bit
(data) modified Harvard architecture with an enhanced
instruction set, including significant support for Digital
Signal Processing (DSP). The CPU has a 24-bit instruc-
tion word with a variable length opcode field. The
Program Counter (PC) is 23 bits wide and addresses up
to 4M x 24 bits of user program memory space.
An instruction prefetch mechanism helps maintain
throughput and provides predictable execution. Most
instructions execute in a single-cycle effective execu-
tion rate, with the exception of instructions that change
the program flow, the double-word move (MOV.D)
instruction, PSV accesses and the table instructions.
Overhead-free program loop constructs are supported
using the DO and REPEAT instructions, both of which
are interruptible at any point.
3.1 Registers
The dsPIC33CK256MP508 devices have sixteen, 16-bit
Working registers in the programmer’s model. Each of
the Working registers can act as a Data, Address or
Address Offset register. The 16th Working register
(W15) operates as a Software Stack Pointer for
interrupts and calls.
In addition, the dsPIC33CK256MP508 devices include
four Alternate Working register sets, which consist of W0
through W14. The Alternate Working registers can be
made persistent to help reduce the saving and restoring
of register content during Interrupt Service Routines
(ISRs). The Alternate Working registers can be assigned
to a specific Interrupt Priority Level (IPL1 through IPL6) by
configuring the CTXTx<2:0> bits in the FALTREG Config-
uration register. The Alternate Working registers can also
be accessed manually by using the CTXTSWP instruction.
The CCTXI<2:0> and MCTXI<2:0> bits in the CTXTSTAT
register can be used to identify the current, and most
recent, manually selected Working register sets.
3.2 Instruction Set
The instruction set for dsPIC33CK256MP508 devices
has two classes of instructions: the MCU class of
instructions and the DSP class of instructions. These
two instruction classes are seamlessly integrated into the
architecture and execute from a single execution unit.
The instruction set includes many addressing modes and
was designed for optimum C compiler efficiency.
3.3 Data Space Addressing
The base Data Space can be addressed as up to
4K words or 8 Kbytes, and is split into two blocks,
referred to as X and Y data memory. Each memory block
has its own independent Address Generation Unit
(AGU). The MCU class of instructions operates solely
through the X memory AGU, which accesses the entire
memory map as one linear Data Space. Certain DSP
instructions operate through the X and Y AGUs to sup-
port dual operand reads, which splits the data address
space into two parts. The X and Y Data Space boundary
is device-specific.
The upper 32 Kbytes of the Data Space memory map
can optionally be mapped into Program Space (PS) at
any 16K program word boundary. The program-to-Data
Space mapping feature, known as Program Space
Visibility (PSV), lets any instruction access Program
Space as if it were Data Space. Refer to “Data
Memory” (DS70595) in the “dsPIC33/PIC24 Family
Reference Manual” for more details on PSV and table
accesses.
On dsPIC33CK256MP508 family devices, overhead-
free circular buffers (Modulo Addressing) are
supported in both X and Y address spaces. The
Modulo Addressing removes the software boundary
checking overhead for DSP algorithms. The X AGU
Circular Addressing can be used with any of the MCU
class of instructions. The X AGU also supports Bit-
Reversed Addressing to greatly simplify input or output
data re-ordering for radix-2 FFT algorithms.
3.4 Addressing Modes
The CPU supports these addressing modes:
• Inherent (no operand)
• Relative
•Literal
• Memory Direct
• Register Direct
• Register Indirect
Each instruction is associated with a predefined
addressing mode group, depending upon its functional
requirements. As many as six addressing modes are
supported for each instruction.
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to “dsPIC33E Enhanced
CPU” (www.microchip.com/DS70005158)
in the “dsPIC33/PIC24 Family Reference
Manual”.
2: Some registers and associated bits
described in this section may not be
available on all devices. Refer to
Section 4.0 “Memory Organization” in
this data sheet for device-specific register
and bit information.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 30 2017-2018 Microchip Technology Inc.
FIGURE 3-1: dsPIC33CK256MP508 FAMILY CPU BLOCK DIAGRAM
Instruction
Decode and
Control
16
PCL
16
Program Counter
16-Bit ALU
24
24
24
24
X Data Bus
PCU 16
16 16
Divide
Support
Engine
DSP
ROM Latch
16
Y Data Bus
EA MUX
X RAGU
X WAGU
Y AGU
16
24
16
16
16
16
16
16
16
8
Interrupt
Controller PSV and Table
Data Access
Control Block
Stack
Control
Logic
Loop
Control
Logic
Data Latch
Data Latch
Y Data
RAM
X Data
RAM
Address
Latch
Address
Latch
16
Data Latch
16
16
16
X Address Bus
Y Address Bus
24
Literal Data
Program Memory
Address Latch
Power, Reset
and Oscillator
Control Signals
to Various Blocks
Ports
Peripheral
Modules
Modules
PCH
IR
16-Bit
Working Register Arrays
2017-2018 Microchip Technology Inc. DS70005349E-page 31
dsPIC33CK256MP508 FAMILY
3.4.1 PROGRAMMER’S MODEL
The programmer’s model for the dsPIC33CK256MP508
family is shown in Figure 3-2. All registers in the
programmer’s model are memory-mapped and can be
manipulated directly by instructions. Table 3-1 lists a
description of each register.
In addition to the registers contained in the programmer’s
model, the dsPIC33CK256MP508 devices contain
control registers for Modulo Addressing, Bit-Reversed
Addressing and interrupts. These registers are described
in subsequent sections of this document.
All registers associated with the programmer’s model
are memory-mapped, as shown in Figure 3-2.
TABLE 3-1: PROGRAMMER’S MODEL REGISTER DESCRIPTIONS
Register(s) Name Description
W0 through W15(1)Working Register Array
W0 through W14(1)Alternate Working Register Array 1
W0 through W14(1)Alternate Working Register Array 2
W0 through W14(1)Alternate Working Register Array 3
W0 through W14(1)Alternate Working Register Array 4
ACCA, ACCB 40-Bit DSP Accumulators (Additional 4 Alternate Accumulators)
PC 23-Bit Program Counter
SR ALU and DSP Engine STATUS Register
SPLIM Stack Pointer Limit Value Register
TBLPAG Table Memory Page Address Register
DSRPAG Extended Data Space (EDS) Read Page Register
RCOUNT REPEAT Loop Counter Register
DCOUNT DO Loop Counter Register
DOSTARTH, DOSTARTL(2)DO Loop Start Address Register (High and Low)
DOENDH, DOENDL DO Loop End Address Register (High and Low)
CORCON Contains DSP Engine, DO Loop Control and Trap Status bits
Note 1: Memory-mapped W0 through W14 represent the value of the register in the currently active CPU context.
2: The DOSTARTH and DOSTARTL registers are read-only.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 32 2017-2018 Microchip Technology Inc.
FIGURE 3-2: PROGRAMMER’S MODEL
NOVZ C
TBLPAG
PC23 PC0
70
D0D15
Program Counter
Data Table Page Address
STATUS Register
Working/Address
Registers
DSP Operand
Registers
W0 (WREG)
W1
W2
W3
W4
W5
W6
W7
W8
W9
W10
W11
W12
W13
Frame Pointer/W14
Stack Pointer/W15
DSP Address
Registers
AD39 AD0
AD31
DSP
Accumulators(1)
ACCA
ACCB
DSRPAG
90
RA
0
OA OB SA SB
RCOUNT
15 0
REPEAT Loop Counter
DCOUNT
15 0
DO Loop Counter and Stack
DOSTART
23 0
DO Loop Start Address and Stack
0
DOEND DO Loop End Address and Stack
IPL2 IPL1
SPLIM Stack Pointer Limit
AD15
23 0
SRL
IPL0
PUSH.s and POP.s Shadows
Nested DO Stack
0
0
OAB SAB
X Data Space Read Page Address
DA DC
0
0
0
0
CORCON
15 0
CPU Core Control Register
W0-W3
D15 D0
W0
W1
W2
W3
W4
W13
W14
W12
W11
W10
W9
W5
W6
W7
W8
W0
W1
W2
W3
W4
W13
W14
W12
W9
W5
W6
W7
W8
W10
W11
D0
Alternate
Working/Address
Registers
D15
D15
D15
D0
D0
W0 W0
W1 W1
W2 W2
W3 W3
W4 W4
W5 W5
W6 W6
W7 W7
W8 W8
W9 W9
W10 W10
W11 W11
W12 W12
W13 W13
W14 W14
AD39 AD31 AD15 AD0
AD39 AD31 AD15 AD0
AD39 AD31 AD15 AD0
AD39 AD31 AD15 AD0
2017-2018 Microchip Technology Inc. DS70005349E-page 33
dsPIC33CK256MP508 FAMILY
3.4.2 CPU RESOURCES
Many useful resources are provided on the main prod-
uct page of the Microchip website for the devices listed
in this data sheet. This product page contains the latest
updates and additional information.
3.4.2.1 Key Resources
•“dsPIC33E Enhanced CPU” (DS70005158) in
the “dsPIC33/PIC24 Family Reference Manual”
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related “dsPIC33/PIC24 Family Reference
Manual” Sections
• Development Tools
dsPIC33CK256MP508 FAMILY
DS70005349E-page 34 2017-2018 Microchip Technology Inc.
3.4.3 CPU CONTROL REGISTERS
REGISTER 3-1: SR: CPU STATUS REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/C-0 R/C-0 R-0 R/W-0
OA OB SA(3)SB(3)OAB SAB DA DC
bit 15 bit 8
R/W-0(2)R/W-0(2)R/W-0(2)R-0 R/W-0 R/W-0 R/W-0 R/W-0
IPL2(1)IPL1(1)IPL0(1)RA N OV Z C
bit 7 bit 0
Legend: C = Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’= Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 OA: Accumulator A Overflow Status bit
1 = Accumulator A has overflowed
0 = Accumulator A has not overflowed
bit 14 OB: Accumulator B Overflow Status bit
1 = Accumulator B has overflowed
0 = Accumulator B has not overflowed
bit 13 SA: Accumulator A Saturation ‘Sticky’ Status bit(3)
1 = Accumulator A is saturated or has been saturated at some time
0 = Accumulator A is not saturated
bit 12 SB: Accumulator B Saturation ‘Sticky’ Status bit(3)
1 = Accumulator B is saturated or has been saturated at some time
0 = Accumulator B is not saturated
bit 11 OAB: OA || OB Combined Accumulator Overflow Status bit
1 = Accumulator A or B has overflowed
0 = Neither Accumulator A or B has overflowed
bit 10 SAB: SA || SB Combined Accumulator ‘Sticky’ Status bit
1 = Accumulator A or B is saturated or has been saturated at some time
0 = Neither Accumulator A or B is saturated
bit 9 DA: DO Loop Active bit
1 = DO loop is in progress
0 = DO loop is not in progress
bit 8 DC: MCU ALU Half Carry/Borrow bit
1 = A carry-out from the 4th low-order bit (for byte-sized data) or 8th low-order bit (for word-sized data)
of the result occurred
0 = No carry-out from the 4th low-order bit (for byte-sized data) or 8th low-order bit (for word-sized
data) of the result occurred
Note 1: The IPL<2:0> bits are concatenated with the IPL<3> bit (CORCON<3>) to form the CPU Interrupt Priority
Level. The value in parentheses indicates the IPL, if IPL<3> = 1. User interrupts are disabled when
IPL<3> = 1.
2: The IPL<2:0> Status bits are read-only when the NSTDIS bit (INTCON1<15>) = 1.
3: A data write to the SR register can modify the SA and SB bits by either a data write to SA and SB or by
clearing the SAB bit. To avoid a possible SA or SB bit write race condition, the SA and SB bits should not
be modified using bit operations.
2017-2018 Microchip Technology Inc. DS70005349E-page 35
dsPIC33CK256MP508 FAMILY
bit 7-5 IPL<2:0>: CPU Interrupt Priority Level Status bits(1,2)
111 = CPU Interrupt Priority Level is 7 (15); user interrupts are disabled
110 = CPU Interrupt Priority Level is 6 (14)
101 = CPU Interrupt Priority Level is 5 (13)
100 = CPU Interrupt Priority Level is 4 (12)
011 = CPU Interrupt Priority Level is 3 (11)
010 = CPU Interrupt Priority Level is 2 (10)
001 = CPU Interrupt Priority Level is 1 (9)
000 = CPU Interrupt Priority Level is 0 (8)
bit 4 RA: REPEAT Loop Active bit
1 = REPEAT loop is in progress
0 = REPEAT loop is not in progress
bit 3 N: MCU ALU Negative bit
1 = Result was negative
0 = Result was non-negative (zero or positive)
bit 2 OV: MCU ALU Overflow bit
This bit is used for signed arithmetic (two’s complement). It indicates an overflow of the magnitude that
causes the sign bit to change state.
1 = Overflow occurred for signed arithmetic (in this arithmetic operation)
0 = No overflow occurred
bit 1 Z: MCU ALU Zero bit
1 = An operation that affects the Z bit has set it at some time in the past
0 = The most recent operation that affects the Z bit has cleared it (i.e., a non-zero result)
bit 0 C: MCU ALU Carry/Borrow bit
1 = A carry-out from the Most Significant bit of the result occurred
0 = No carry-out from the Most Significant bit of the result occurred
REGISTER 3-1: SR: CPU STATUS REGISTER (CONTINUED)
Note 1: The IPL<2:0> bits are concatenated with the IPL<3> bit (CORCON<3>) to form the CPU Interrupt Priority
Level. The value in parentheses indicates the IPL, if IPL<3> = 1. User interrupts are disabled when
IPL<3> = 1.
2: The IPL<2:0> Status bits are read-only when the NSTDIS bit (INTCON1<15>) = 1.
3: A data write to the SR register can modify the SA and SB bits by either a data write to SA and SB or by
clearing the SAB bit. To avoid a possible SA or SB bit write race condition, the SA and SB bits should not
be modified using bit operations.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 36 2017-2018 Microchip Technology Inc.
REGISTER 3-2: CORCON: CORE CONTROL REGISTER
R/W-0 U-0 R/W-0 R/W-0 R/W-0 R-0 R-0 R-0
VAR — US1 US0 EDT(1)DL2 DL1 DL0
bit 15 bit 8
R/W-0 R/W-0 R/W-1 R/W-0 R/C-0 R-0 R/W-0 R/W-0
SATA SATB SATDW ACCSAT IPL3(2)SFA RND IF
bit 7 bit 0
Legend: C = Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 VAR: Variable Exception Processing Latency Control bit
1 = Variable exception processing is enabled
0 = Fixed exception processing is enabled
bit 14 Unimplemented: Read as ‘0’
bit 13-12 US<1:0>: DSP Multiply Unsigned/Signed Control bits
11 = Reserved
10 = DSP engine multiplies are mixed sign
01 = DSP engine multiplies are unsigned
00 = DSP engine multiplies are signed
bit 11 EDT: Early DO Loop Termination Control bit(1)
1 = Terminates executing DO loop at the end of the current loop iteration
0 = No effect
bit 10-8 DL<2:0>: DO Loop Nesting Level Status bits
111 = Seven DO loops are active
...
001 = One DO loop is active
000 = Zero DO loops are active
bit 7 SATA: ACCA Saturation Enable bit
1 = Accumulator A saturation is enabled
0 = Accumulator A saturation is disabled
bit 6 SATB: ACCB Saturation Enable bit
1 = Accumulator B saturation is enabled
0 = Accumulator B saturation is disabled
bit 5 SATDW: Data Space Write from DSP Engine Saturation Enable bit
1 = Data Space write saturation is enabled
0 = Data Space write saturation is disabled
bit 4 ACCSAT: Accumulator Saturation Mode Select bit
1 = 9.31 saturation (super saturation)
0 = 1.31 saturation (normal saturation)
bit 3 IPL3: CPU Interrupt Priority Level Status bit 3(2)
1 = CPU Interrupt Priority Level is greater than 7
0 = CPU Interrupt Priority Level is 7 or less
Note 1: This bit is always read as ‘0’.
2: The IPL3 bit is concatenated with the IPL<2:0> bits (SR<7:5>) to form the CPU Interrupt Priority Level.
2017-2018 Microchip Technology Inc. DS70005349E-page 37
dsPIC33CK256MP508 FAMILY
bit 2 SFA: Stack Frame Active Status bit
1 = Stack frame is active; W14 and W15 address 0x0000 to 0xFFFF, regardless of DSRPAG
0 = Stack frame is not active; W14 and W15 address the base Data Space
bit 1 RND: Rounding Mode Select bit
1 = Biased (conventional) rounding is enabled
0 = Unbiased (convergent) rounding is enabled
bit 0 IF: Integer or Fractional Multiplier Mode Select bit
1 = Integer mode is enabled for DSP multiply
0 = Fractional mode is enabled for DSP multiply
REGISTER 3-2: CORCON: CORE CONTROL REGISTER (CONTINUED)
Note 1: This bit is always read as ‘0’.
2: The IPL3 bit is concatenated with the IPL<2:0> bits (SR<7:5>) to form the CPU Interrupt Priority Level.
REGISTER 3-3: MSTRPR: EDS BUS MASTER PRIORITY CONTROL REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 U-0 U-0 U-0 R/W-0
—— DMAPR CANPR — — — NVMPR
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-6 Unimplemented: Read as ‘0’
bit 5 DMAPR: Modify DMA Controller Bus Master Priority Relative to CPU bit
1 = Raise DMA Controller bus Master priority to above that of the CPU
0 = No change to DMA Controller bus Master priority
bit 4 CANPR: Modify CAN1 Bus Master Priority Relative to CPU bit
1 = Raise CAN1 bus Master priority to above that of the CPU
0 = No change to CAN1 bus Master priority
bit 3-1 Unimplemented: Read as ‘0’
bit 0 NVMPR: Modify NVM Controller Bus Master Priority Relative to CPU bit
1 = Raise NVM Controller bus Master priority to above that of the CPU
0 = No change to NVM Controller bus Master priority
dsPIC33CK256MP508 FAMILY
DS70005349E-page 38 2017-2018 Microchip Technology Inc.
REGISTER 3-4: CTXTSTAT: CPU W REGISTER CONTEXT STATUS REGISTER
U-0 U-0 U-0 U-0 U-0 R-0 R-0 R-0
— — — — — CCTXI2 CCTXI1 CCTXI0
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 R-0 R-0 R-0
— — — — — MCTXI2 MCTXI1 MCTXI0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 Unimplemented: Read as ‘0’
bit 10-8 CCTXI<2:0>: Current (W Register) Context Identifier bits
111 = Reserved
•
•
•
100 = Alternate Working Register Set 4 is currently in use
011 = Alternate Working Register Set 3 is currently in use
010 = Alternate Working Register Set 2 is currently in use
001 = Alternate Working Register Set 1 is currently in use
000 = Default register set is currently in use
bit 7-3 Unimplemented: Read as ‘0’
bit 2-0 MCTXI<2:0>: Manual (W Register) Context Identifier bits
111 = Reserved
•
•
•
100 = Alternate Working Register Set 4 was most recently manually selected
011 = Alternate Working Register Set 3 was most recently manually selected
010 = Alternate Working Register Set 2 was most recently manually selected
001 = Alternate Working Register Set 1 was most recently manually selected
000 = Default register set was most recently manually selected
2017-2018 Microchip Technology Inc. DS70005349E-page 39
dsPIC33CK256MP508 FAMILY
3.4.4 ARITHMETIC LOGIC UNIT (ALU)
The dsPIC33CK256MP508 family ALU is 16 bits wide
and is capable of addition, subtraction, bit shifts and logic
operations. Unless otherwise mentioned, arithmetic
operations are two’s complement in nature. Depending
on the operation, the ALU can affect the values of the
Carry (C), Zero (Z), Negative (N), Overflow (OV) and
Digit Carry (DC) Status bits in the SR register. The C
and DC Status bits operate as Borrow and Digit Borrow
bits, respectively, for subtraction operations.
The ALU can perform 8-bit or 16-bit operations,
depending on the mode of the instruction that is used.
Data for the ALU operation can come from the W
register array or data memory, depending on the
addressing mode of the instruction. Likewise, output
data from the ALU can be written to the W register array
or a data memory location.
Refer to the “16-Bit MCU and DSC Programmer’s
Reference Manual” (DS70000157) for information on
the SR bits affected by each instruction.
The core CPU incorporates hardware support for both
multiplication and division. This includes a dedicated
hardware multiplier and support hardware for 16-bit
divisor division.
3.4.4.1 Multiplier
Using the high-speed, 17-bit x 17-bit multiplier, the ALU
supports unsigned, signed or mixed-sign operation in
several MCU multiplication modes:
• 16-bit x 16-bit signed
• 16-bit x 16-bit unsigned
• 16-bit signed x 5-bit (literal) unsigned
• 16-bit signed x 16-bit unsigned
• 16-bit unsigned x 5-bit (literal) unsigned
• 16-bit unsigned x 16-bit signed
• 8-bit unsigned x 8-bit unsigned
3.4.4.2 Divider
The divide block supports 32-bit/16-bit and 16-bit/16-bit
signed and unsigned integer divide operations with the
following data sizes:
• 32-bit signed/16-bit signed divide
• 32-bit unsigned/16-bit unsigned divide
• 16-bit signed/16-bit signed divide
• 16-bit unsigned/16-bit unsigned divide
The 16-bit signed and unsigned DIV instructions can
specify any W register for both the 16-bit divisor (Wn)
and any W register (aligned) pair (W(m + 1):Wm) for
the 32-bit dividend. The divide algorithm takes one
cycle per bit of divisor, so both 32-bit/16-bit and 16-bit/
16-bit instructions take the same number of cycles to
execute. There are additional instructions: DIV2 and
DIVF2. Divide instructions will complete in six cycles.
3.4.5 DSP ENGINE
The DSP engine consists of a high-speed 17-bit x 17-bit
multiplier, a 40-bit barrel shifter and a 40-bit adder/
subtracter (with two target accumulators, round and
saturation logic).
The DSP engine can also perform inherent accumulator-
to-accumulator operations that require no additional
data. These instructions are, ADD, SUB, NEG, MIN and
MAX.
The DSP engine has options selected through bits in
the CPU Core Control register (CORCON), as listed
below:
• Fractional or integer DSP multiply (IF)
• Signed, unsigned or mixed-sign DSP multiply
(USx)
• Conventional or convergent rounding (RND)
• Automatic saturation on/off for ACCA (SATA)
• Automatic saturation on/off for ACCB (SATB)
• Automatic saturation on/off for writes to data
memory (SATDW)
• Accumulator Saturation mode selection
(ACCSAT)
TABLE 3-2: DSP INSTRUCTIONS
SUMMARY
Instruction Algebraic
Operation
ACC
Write-Back
CLR A = 0 Yes
ED A = (x – y)2No
EDAC A = A + (x – y)2No
MAC A = A + (x • y) Ye s
MAC A = A + x2No
MOVSAC No change in A Yes
MPY A = x • y No
MPY A = x2No
MPY.N A = – x • y No
MSC A = A – x • y Yes
dsPIC33CK256MP508 FAMILY
DS70005349E-page 40 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 41
dsPIC33CK256MP508 FAMILY
4.0 MEMORY ORGANIZATION
The dsPIC33CK256MP508 family architecture features
separate program and data memory spaces, and
buses. This architecture also allows the direct access
of program memory from the Data Space (DS) during
code execution.
4.1 Program Address Space
The program address memory space of the
dsPIC33CK256MP508 family devices is 4M instructions.
The space is addressable by a 24-bit value derived either
from the 23-bit PC during program execution, or from
table operation or Data Space remapping, as described
in Section 4.4.5 “Interfacing Program and Data
Memory Spaces”.
User application access to the program memory space
is restricted to the lower half of the address range
(0x000000 to 0x7FFFFF). The exception is the use of
TBLRD operations, which use TBLPAG<7> to permit
access to calibration data and Device ID sections of the
configuration memory space.
The program memory maps for dsPIC33CK256MP508
devices are shown in Figure 4-1 through Figure 4-5.
FIGURE 4-1: PROGRAM MEMORY MAP FOR dsPIC33CKXXXMP50X/20X DEVICES(1)
Note: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to “dsPIC33E/PIC24E Pro-
gram Memory” (www.microchip.com/
DS70000613) in the “dsPIC33/PIC24
Family Reference Manual”.
0x000000
Code Memory
0x800000
DEVID
0xFEFFFE
0xFF0000
0xFFFFFE
Unimplemented
(Read ‘0’s)
Reserved
0x7FFFFE
Configuration Memory Space User Memory Space
Device Configuration
0x0XXX00
0x0XXXFE
Reserved
0xFF0002
Note 1: Memory areas are not shown to scale.
2: Calibration data area must be maintained during programming.
3: Calibration data area includes UDID, ICSP™ Write Inhibit and FBOOT registers locations.
0xFF0004
Executive Code Memory
0x801800
0x8017FE
OTP Memory
0xF9FFFE
0xFA0000
0xFA0002
0xFA0004
Write Latches
Reserved
0x801700
0x800FFE
0x801000
0x8016FE
0x0XXXFE
0x0XXX00 See Figure 4-2 through
Figure 4-5 for details.
Calibration
Data(2,3)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 42 2017-2018 Microchip Technology Inc.
FIGURE 4-2: PROGRAM MEMORY MAP FOR dsPIC33CK256MP50/20X DEVICES(1)
FIGURE 4-3: PROGRAM MEMORY MAP FOR dsPIC33CK128MP50X/20X DEVICES(1)
0x000000
User
0x02BF00
0x02BEFE
Program
Unimplemented
(Read ‘0’s)
Inactive Partition Active Partition
Device Configuration
0x02C000
0x02BFFE
0x7FFFFE
Note 1: Memory areas are not shown to scale.
Single Partition Dual Partition
Memory
0x000000
User
0x016000
0x015FFE
Program
Unimplemented
(Read ‘0’s)
Inactive Partition Active Partition
Device Configuration
0x400000
0x7FFFFE
Memory
User
Program
Memory
Unimplemented
(Read ‘0’s)
Device Configuration
0x015EFE
0x015F00
0x415F00
0x415EFE
0x416000
0x415FFE
0x000000
User
0x015F00
0x015EFE
Program
Unimplemented
(Read ‘0’s)
Inactive Partition Active Partition
Device Configuration
0x016000
0x015FFE
0x7FFFFE
Note 1: Memory areas are not shown to scale.
Single Partition Dual Partition
Memory
0x000000
User
0x00B000
0x00AFFE
Program
Unimplemented
(Read ‘0’s)
Inactive Partition Active Partition
Device Configuration
0x400000
0x7FFFFE
Memory
User
Program
Memory
Unimplemented
(Read ‘0’s)
Device Configuration
0x00AEFE
0x00AF00
0x40AF00
0x40AEFE
0x40B000
0x40AFFE
2017-2018 Microchip Technology Inc. DS70005349E-page 43
dsPIC33CK256MP508 FAMILY
FIGURE 4-4: PROGRAM MEMORY MAP FOR dsPIC33CK64MP50X/20X DEVICES(1)
FIGURE 4-5: PROGRAM MEMORY MAP FOR dsPIC33CK32MP50X/20X DEVICES(1)
0x000000
User
0x00AF00
0x00AEFE
Program
Unimplemented
(Read ‘0’s)
Inactive Partition Active Partition
Device Configuration
0x00B000
0x00AFFE
0x7FFFFE
Note 1: Memory areas are not shown to scale.
Single Partition Dual Partition
Memory
0x000000
User
0x006000
0x005FFE
Program
Unimplemented
(Read ‘0’s)
Inactive Partition Active Partition
Device Configuration
0x400000
0x7FFFFE
Memory
User
Program
Memory
Unimplemented
(Read ‘0’s)
Device Configuration
0x005EFE
0x005F00
0x405F00
0x405EFE
0x406000
0x405FFE
0x000000
User
0x005F00
0x005EFE
Program
Unimplemented
(Read ‘0’s)
Inactive Partition Active Partition
Device Configuration
0x006000
0x005FFE
0x7FFFFE
Note 1: Memory areas are not shown to scale.
Single Partition Dual Partition
Memory
0x000000
User
0x003000
0x002FFE
Program
Unimplemented
(Read ‘0’s)
Inactive Partition Active Partition
Device Configuration
0x400000
0x7FFFFE
Memory
User
Program
Memory
Unimplemented
(Read ‘0’s)
Device Configuration
0x002EFE
0x002F00
0x402F00
0x402EFE
0x403000
0x402FFE
dsPIC33CK256MP508 FAMILY
DS70005349E-page 44 2017-2018 Microchip Technology Inc.
4.1.1 PROGRAM MEMORY
ORGANIZATION
The program memory space is organized in word-
addressable blocks. Although it is treated as 24 bits
wide, it is more appropriate to think of each address of
the program memory as a lower and upper word, with
the upper byte of the upper word being unimplemented.
The lower word always has an even address, while the
upper word has an odd address (Figure 4-6).
Program memory addresses are always word-aligned
on the lower word, and addresses are incremented or
decremented, by two, during code execution. This
arrangement provides compatibility with data memory
space addressing and makes data in the program
memory space accessible.
4.1.2 INTERRUPT AND TRAP VECTORS
All dsPIC33CK256MP508 family devices reserve the
addresses between 0x000000 and 0x000200 for hard-
coded program execution vectors. A hardware Reset
vector is provided to redirect code execution from the
default value of the PC on device Reset to the actual
start of code. A GOTO instruction is programmed by the
user application at address, 0x000000, of Flash
memory, with the actual address for the start of code at
address, 0x000002, of Flash memory.
A more detailed discussion of the Interrupt Vector
Tables (IVTs) is provided in Section 7.0 “Interrupt
Controller”.
FIGURE 4-6: PROGRAM MEMORY ORGANIZATION
0816
PC Address
0x000000
0x000002
0x000004
0x000006
23
00000000
00000000
00000000
00000000
Program Memory
‘Phantom’ Byte
(read as ‘0’)
least significant word
most significant word
Instruction Width
0x000001
0x000003
0x000005
0x000007
msw
Address (lsw Address)
2017-2018 Microchip Technology Inc. DS70005349E-page 45
dsPIC33CK256MP508 FAMILY
4.1.3 UNIQUE DEVICE IDENTIFIER
(UDID)
All dsPIC33CK256MP508 family devices are individu-
ally encoded during final manufacturing with a Unique
Device Identifier or UDID. The UDID cannot be erased
by a bulk erase command or any other user-accessible
means. This feature allows for manufacturing traceabil-
ity of Microchip Technology devices in applications
where this is a requirement. It may also be used by the
application manufacturer for any number of things that
may require unique identification, such as:
• Tracking the device
• Unique serial number
• Unique security key
The UDID comprises five 24-bit program words. When
taken together, these fields form a unique 120-bit
identifier.
The UDID is stored in five read-only locations, located
between 0x801200 and 0x801208 in the device config-
uration space. Table 4-1 lists the addresses of the
identifier words and shows their contents
4.2 Data Address Space
The dsPIC33CK256MP508 family CPU has a separate
16-bit wide data memory space. The Data Space is
accessed using separate Address Generation Units
(AGUs) for read and write operations. The data
memory maps are shown in Figure 4-7, Figure 4-8 and
Figure 4-9.
All Effective Addresses (EAs) in the data memory space
are 16 bits wide and point to bytes within the Data
Space. This arrangement gives a base Data Space
address range of 64 Kbytes or 32K words.
The lower half of the data memory space (i.e., when
EA<15> = 0) is used for implemented memory
addresses, while the upper half (EA<15> = 1) is
reserved for the Program Space Visibility (PSV).
The dsPIC33CK256MP508 family devices implement
up to 16 Kbytes of data memory. If an EA points to a
location outside of this area, an all-zero word or byte is
returned.
4.2.1 DATA SPACE WIDTH
The data memory space is organized in byte-
addressable, 16-bit wide blocks. Data is aligned in data
memory and registers as 16-bit words, but all Data
Space EAs resolve to bytes. The Least Significant
Bytes (LSBs) of each word have even addresses, while
the Most Significant Bytes (MSBs) have odd
addresses.
4.2.2 DATA MEMORY ORGANIZATION
AND ALIGNMENT
To maintain backward compatibility with PIC® MCU
devices and improve Data Space memory usage
efficiency, the dsPIC33CK256MP508 family instruction
set supports both word and byte operations. As a
consequence of byte accessibility, all Effective Address
calculations are internally scaled to step through word-
aligned memory. For example, the core recognizes that
Post-Modified Register Indirect Addressing mode
[Ws++] results in a value of Ws + 1 for byte operations
and Ws + 2 for word operations.
A data byte read, reads the complete word that
contains the byte, using the LSb of any EA to determine
which byte to select. The selected byte is placed onto
the LSB of the data path. That is, data memory and
registers are organized as two parallel, byte-wide
entities with shared (word) address decode, but
separate write lines. Data byte writes only write to the
corresponding side of the array or register that matches
the byte address.
All word accesses must be aligned to an even address.
Misaligned word data fetches are not supported, so
care must be taken when mixing byte and word
operations, or translating from 8-bit MCU code. If a
misaligned read or write is attempted, an address error
trap is generated. If the error occurred on a read, the
instruction underway is completed. If the error occurred
on a write, the instruction is executed but the write does
not occur. In either case, a trap is then executed,
allowing the system and/or user application to examine
the machine state prior to execution of the address
Fault.
All byte loads into any W register are loaded into the
LSB; the MSB is not modified.
A Sign-Extend (SE) instruction is provided to allow user
applications to translate 8-bit signed data to 16-bit
signed values. Alternatively, for 16-bit unsigned data,
user applications can clear the MSB of any W register
by executing a Zero-Extend (ZE) instruction on the
appropriate address.
TABLE 4-1: UDID ADDRESSES
UDID Address Description
UDID1 0x801200 UDID Word 1
UDID2 0x801202 UDID Word 2
UDID3 0x801204 UDID Word 3
UDID4 0x801206 UDID Word 4
UDID5 0x801208 UDID Word 5
dsPIC33CK256MP508 FAMILY
DS70005349E-page 46 2017-2018 Microchip Technology Inc.
4.2.3 SFR SPACE
The first four Kbytes of the Near Data Space, from
0x0000 to 0x0FFF, is primarily occupied by Special
Function Registers (SFRs). These are used by the
dsPIC33CK256MP508 family core and peripheral
modules for controlling the operation of the device.
SFRs are distributed among the modules that they
control and are generally grouped together by module.
Much of the SFR space contains unused addresses;
these are read as ‘0’.
4.2.4 NEAR DATA SPACE
The 8-Kbyte area, between 0x0000 and 0x1FFF, is
referred to as the Near Data Space. Locations in this
space are directly addressable through a 13-bit absolute
address field within all memory direct instructions. Addi-
tionally, the whole Data Space is addressable using MOV
instructions, which support Memory Direct Addressing
mode with a 16-bit address field, or by using Indirect
Addressing mode using a Working register as an
Address Pointer.
Note: The actual set of peripheral features and
interrupts varies by the device. Refer to the
corresponding device tables and pinout
diagrams for device-specific information.
2017-2018 Microchip Technology Inc. DS70005349E-page 47
dsPIC33CK256MP508 FAMILY
FIGURE 4-7: DATA MEMORY MAP FOR dsPIC33CK256MPX0X DEVICES
0x0000
0x0FFE
0xFFFE
LSB
Address
16 Bits
LSBMSB
MSB
Address
0x0001
0x0FFF
0xFFFF
Optionally
Mapped
into Program
Memory
0x1001
4-Kbyte
SFR Space
24-Kbyte
SRAM Space
Data Space
Near
8-Kbyte
SFR Space
X Data RAM (X) (8K)
X Data
Unimplemented (X)
0x80000x8001
Note: Memory areas are not shown to scale.
Y Data RAM (Y) (8K)
0x4FFF 0x4FFE
0x5001 0x5000
0x6FFF 0x6FFE
0x7001 0x7000
0x2000
dsPIC33CK256MP508 FAMILY
DS70005349E-page 48 2017-2018 Microchip Technology Inc.
FIGURE 4-8: DATA MEMORY MAP FOR dsPIC33CK128MPX0X DEVICES
0x0000
0x0FFE
0xFFFE
LSB
Address
16 Bits
LSBMSB
MSB
Address
0x0001
0x0FFF
0xFFFF
Optionally
Mapped
into Program
Memory
0x1001
4-Kbyte
SFR Space
16-Kbyte
SRAM Space
Data Space
Near
8-Kbyte
SFR Space
X Data RAM (X) (8K)
X Data
Unimplemented (X)
0x80000x8001
Note: Memory areas are not shown to scale.
Y Data RAM (Y) (8K)
0x2FFF 0x2FFE
0x3001 0x3000
0x4FFF 0x4FFE
0x5001 0x5000
0x2000
2017-2018 Microchip Technology Inc. DS70005349E-page 49
dsPIC33CK256MP508 FAMILY
FIGURE 4-9: DATA MEMORY MAP FOR dsPIC33CK64MPX0X AND dsPIC33CK32MPX0X DEVICES
0x0000
0x0FFE
0xFFFE
LSB
Address
16 Bits
LSBMSB
MSB
Address
0x0001
0x0FFF
0xFFFF
Optionally
Mapped
into Program
Memory
0x1001
4-Kbyte
SFR Space
8-Kbyte
SRAM Space
Data Space
Near
8-Kbyte
SFR Space
X Data RAM (X) (8K)
X Data
Unimplemented (X)
0x80000x8001
Note: Memory areas are not shown to scale.
Y Data RAM (Y) (8K)
0x1FFF 0x1FFE
0x2001 0x2000
0x2FFF 0x2FFE
0x3001 0x3000
0x2000
dsPIC33CK256MP508 FAMILY
DS70005349E-page 50 2017-2018 Microchip Technology Inc.
4.2.5 X AND Y DATA SPACES
The dsPIC33CK256MP508 family core has two Data
Spaces, X and Y. These Data Spaces can be considered
either separate (for some DSP instructions) or as one
unified linear address range (for MCU instructions). The
Data Spaces are accessed using two Address Genera-
tion Units (AGUs) and separate data paths. This feature
allows certain instructions to concurrently fetch two
words from RAM, thereby enabling efficient execution of
DSP algorithms, such as Finite Impulse Response (FIR)
filtering and Fast Fourier Transform (FFT).
The X Data Space is used by all instructions and
supports all addressing modes. X Data Space has
separate read and write data buses. The X read data
bus is the read data path for all instructions that view
Data Space as combined X and Y address space. It is
also the X data prefetch path for the dual operand DSP
instructions (MAC class).
The Y Data Space is used in concert with the X Data
Space by the MAC class of instructions (CLR, ED,
EDAC, MAC, MOVSAC, MPY, MPY.N and MSC) to provide
two concurrent data read paths.
Both the X and Y Data Spaces support Modulo Address-
ing mode for all instructions, subject to addressing mode
restrictions. Bit-Reversed Addressing mode is only
supported for writes to X Data Space.
All data memory writes, including in DSP instructions,
view Data Space as combined X and Y address space.
The boundary between the X and Y Data Spaces is
device-dependent and is not user-programmable.
4.2.6 BIST OVERVIEW
The dsPIC33CK256MP508 family features a data
memory Built-In Self-Test (BIST) that has the option to
be run at start-up or run time. The memory test checks
that all memory locations are functional and provides a
pass/fail status of the RAM that can be used by soft-
ware to take action if needed. If a failure is reported, the
specific location(s) are not identified.
The MBISTCON register (Register 4-1) contains control
and status bits for BIST operation. The MBISTDONE bit
(MBISTCON<7>) indicates if a BIST was run since the
last Reset and the MBISTSTAT bit (MBISTCON<4>)
provides the pass fail result.
4.2.7 BIST AT START-UP
The BIST can be configured to automatically run on a
POR type Reset, as shown in Figure 4-10. By default,
when BISTDIS (FPOR<6>) = 1, the BIST is disabled
and will not be part of device start-up. If the BISTDIS bit
is cleared during device programming, the BIST will run
after all Configuration registers have been loaded and
before code execution begins. BIST will always run on
FRC+PLL with PLL settings resulting in a 125 MHz
clock rate.
FIGURE 4-10: BIST FLOWCHART
4.2.8 BIST AT RUN TIME
A BIST test can be requested to run on subsequent
device Resets at any time.
A BIST will corrupt all of the RAM contents, including the
Stack Pointer, and requires a subsequent Reset. The
system should be prepared for a Reset before a BIST is
performed. The BIST is invoked by setting the MBISTEN
bit (MBISTCON<0>) and executing a Reset. The
MBISTCON register is protected against accidental
writes and requires an unlock sequence prior to writing.
Only one bit can be set per unlock sequence. The
procedure for a run-time BIST is as follows:
1. Execute the unlock sequence by consecutively
writing 0x55 and 0xAA to the NVMKEY register.
2. Write 0x0001 to the MBISTCON SFR.
3. Execute a software RESET command.
4. Verify a Software Reset has occurred by reading
SWR (RCON<6>) (optional).
5. Verify that the MBISTDONE bit is set.
6. Take action depending on test result indicated
by MBISTSTAT.
POR
BIST
BISTDIS
(FPOR<6>)
Code Execution
1
0
2017-2018 Microchip Technology Inc. DS70005349E-page 51
dsPIC33CK256MP508 FAMILY
4.2.8.1 Fault Simulation
A mechanism is available to simulate a BIST failure to
allow testing of Fault handling software. When the
FLTINJ bit is set during a run-time BIST, the
MBISTSTAT bit will be set regardless of the test result.
The procedure for a BIST Fault simulation is as follows:
1. Execute the unlock sequence by consecutively
writing 0x55 and 0xAA to the NVMKEY register.
2. Set the MBISTEN bit (MBISTCON<0>).
3. Execute 2nd unlock sequence by consecutively
writing 0x55 and 0xAA to the NVMKEY register.
4. Set the FLTINJ bit (MBISTCON<8>).
5. Execute a software RESET command.
6. Verify the MBISTDONE, MBSITSTAT and FLTINJ
bits are all set.
REGISTER 4-1: MBISTCON: MBIST CONTROL REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0(1)
— — — — — — —FLTINJ
bit 15 bit 8
R/W/HS-0 U-0 U-0 R-0 U-0 U-0 U-0 R/W/HC-0
MBISTDONE(1)—— MBISTSTAT — — — MBISTEN(2)
bit 7 bit 0
Legend: HS = Hardware Settable bit HC = Hardware Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-9 Unimplemented: Read as ‘0’
bit 8 FLTINJ: MBIST Fault Inject Control bit(1)
1 = The MBIST test will complete and sets MBISTSTAT = 1, simulating an SRAM test failure
0 = The MBIST test will execute normally
bit 7 MBISTDONE: MBIST Done Status bit(1)
1 = An MBIST operation has been executed
0 = No MBIST operation has occurred on the last Reset sequence
bit 6-5 Unimplemented: Read as ‘0’
bit 4 MBISTSTAT: MBIST Status bit
1 = The last MBIST failed
0 = The last MBIST passed; all memory may not have been tested
bit 3-1 Unimplemented: Read as ‘0’
bit 0 MBISTEN: MBIST Enable bit(2)
1 = MBIST test is armed; an MBIST test will execute at the next device Reset
0 = MBIST test is disarmed
Note 1: HW resets only on a true POR Reset.
2: This bit will self-clear when the MBIST test is complete.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 52 2017-2018 Microchip Technology Inc.
4.3 Memory Resources
Many useful resources are provided on the main
product page of the Microchip website for the devices
listed in this data sheet. This product page contains the
latest updates and additional information.
4.3.1 KEY RESOURCES
•“dsPIC33E Enhanced CPU” (DS70005158) in
the “dsPIC33/PIC24 Family Reference Manual”
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All Related “dsPIC33/PIC24 Family Reference
Manual” Sections
• Development Tools
4.4 SFR Maps
The following tables show the dsPIC33CK256MP508
family SFR names, addresses and Reset values.
These tables contain all registers applicable to the
dsPIC33CK256MP508 family. Not all registers are
present on all device variants. Refer to Tab l e 1 and
Table 2 for peripheral availability. Ta b l e 8 - 1 details port
availability for the different package options.
TABLE 4-2: SFR BLOCK 000h
Register Address All Resets Register Address All Resets Register Address All Resets
Core XMODSRT 048 xxxxxxxxxxxxxxx0 CRC
WREG0 000 0000000000000000 XMODEND 04A xxxxxxxxxxxxxxx1 CRCCONL 0B0 --000000010000--
WREG1 002 0000000000000000 YMODSRT 04C xxxxxxxxxxxxxxx0 CRCCONH 0B2 ---00000---00000
WREG2 004 0000000000000000 YMODEND 04E xxxxxxxxxxxxxxx1 CRCXORL 0B4 000000000000000-
WREG3 006 0000000000000000 XBREV 050 xxxxxxxxxxxxxxxx CRCXORH 0B6 0000000000000000
WREG4 008 0000000000000000 DISICNT 052 -xxxxxxxxxxxxx00 CRCDATL 0B8 0000000000000000
WREG5 00A 0000000000000000 TBLPAG 054 --------00000000 CRCDATH 0BA 0000000000000000
WREG6 00C 0000000000000000 YPAG 056 --------00000001 CRCWDATL 0BC 0000000000000000
WREG7 00E 0000000000000000 MSTRPR 058 ----------00---0 CRCWDATH 0BE 0000000000000000
WREG8 010 0000000000000000 CTXTSTAT 05A -----000-----000 CLC
WREG9 012 0000000000000000 DMTCON 05C ---------------- CLC1CONL 0C0 --0-00--000--000
WREG10 014 0000000000000000 DMTPRECLR 060 xxxxxxxx-------- CLC1CONH 0C2 ------------0000
WREG11 016 0000000000000000 DMTCLR 064 --------xxxxxxxx CLC1SEL 0C4 0000-000-000-000
WREG12 018 0000000000000000 DMTSTAT 068 --------xxx----x CLC1GLSL 0C8 0000000000000000
WREG13 01A 0000000000000000 DMTCNTL 06C xxxxxxxxxxxxxxxx CLC1GLSH 0CA 0000000000000000
WREG14 01C 0000000000000000 DMTCNTH 06E xxxxxxxxxxxxxxxx CLC2CONL 0CC --0-00--000--000
WREG15 01E 0001000000000000 DMTHOLDREG 070 xxxxxxxxxxxxxxxx CLC2CONH 0CE ------------0000
SPLIM 020 xxxxxxxxxxxxxxxx DMTPSCNTL 074 xxxxxxxxxxxxxxxx CLC2SELL 0D0 0000-000-000-000
ACCAL 022 xxxxxxxxxxxxxxxx DMTPSCNTH 076 xxxxxxxxxxxxxxxx CLC2GLSL 0D4 0000000000000000
ACCAH 024 xxxxxxxxxxxxxxxx DMTPSINTVL 078 xxxxxxxxxxxxxxxx CLC2GLSH 0D6 0000000000000000
ACCAU 026 xxxxxxxxxxxxxxxx DMTPSINTVH 07A xxxxxxxxxxxxxxxx CLC3CONL 0D8 --0-00--000--000
ACCBL 028 xxxxxxxxxxxxxxxx SENT CLC3CONH 0DA ------------0000
ACCBH 02A xxxxxxxxxxxxxxxx SENT1CON1 080 --0-000000-0-000 CLC3SELL 0DC 0000-000-000-000
ACCBU 02C xxxxxxxxxxxxxxxx SENT1CON2 084 0000000000000000 CLC3GLSL 0E0 0000000000000000
PCL 02E 0000000000000000 SENT1CON3 088 0000000000000000 CLC3GLSH 0E2 0000000000000000
PCH 030 --------00000000 SENT1STAT 08C --------00000000 CLC4CONL 0E4 --0-00--000--000
DSRPAG 032 ------0000000001 SENT1SYNC 090 0000000000000000 CLC4CONH 0E6 ------------0000
DSWPAG 034 -------000000001 SENT1DATL 094 0000000000000000 CLC4SELL 0E8 0000-000-000-000
RCOUNT 036 xxxxxxxxxxxxxxxx SENT1DATH 096 0000000000000000 CLC4GLSL 0EC 0000000000000000
DCOUNT 038 xxxxxxxxxxxxxxxx SENT2CON1 098 --0-000000-0-000 CLC4GLSH 0EE 0000000000000000
DOSTARTL 03A xxxxxxxxxxxxxxx0 SENT2CON2 09C 0000000000000000 ECC
DOSTARTH 03C ---------xxxxxxx SENT2CON3 0A0 0000000000000000 ECCCONL 0F0 ---------------0
DOENDL 03E xxxxxxxxxxxxxxx0 SENT2STAT 0A4 --------00000000 ECCCONH 0F2 0000000000000000
DOENDH 040 ---------xxxxxxx SENT2SYNC 0A8 0000000000000000 ECCADDRL 0F4 0000000000000000
SR 042 0000000000000000 SENT2DATL 0AC 0000000000000000 ECCADDRH 0F6 0000000000000000
CORCON 044 --xx000000100000 SENT2DATH 0AE 0000000000000000 ECCSTATL 0F8 0000000000000000
MODCON 046 0--0000000000000 ECCSTATH 0FA ------0000000000
Legend: x = unknown or indeterminate value; “-” = unimplemented bits. Address values are in hexadecimal. Reset values are in binary.
2017-2018 Microchip Technology Inc. DS70005349E-page 53
dsPIC33CK256MP508 FAMILY
TABLE 4-3: SFR BLOCK 100h
Register Address All Resets Register Address All Resets Register Address All Resets
Timers INDX1HLD 16A 0000000000000000 INDX2HLD 19E 0000000000000000
T1CON 100 --0000000-00-00- QEI1GECL/
QEI1ICL
16C 0000000000000000 QEI2GECL/
QEI2ICL
1A0 0000000000000000
TMR1 104 0000000000000000 QEI1GECH/
QEI1ICH
16E 0000000000000000 QEI2GECH/
QEI2ICH
1A2 0000000000000000
PR1 108 0000000000000000 QEI1LECL 170 0000000000000000 QEI2LECL 1A4 0000000000000000
QEI QEI1LECH 172 0000000000000000 QEI2LECH 1A6 0000000000000000
QEI1CON 140 --000000-0000000 QEI2CON 174 --000000-0000000 PMP
QEI1IOC 144 000000000000xxxx QEI2IOC 178 000000000000xxxx PMCON 1A8 --00000000000-00
QEI1IOCH 146 ---------------0 QEI2IOCH 17A ---------------0 PMCONH 1AA --------0-----0-
QEI1STAT 148 --00000000000000 QEI2STAT 17C --00000000000000 PMMODE 1AC 0000000000000000
POS1CNTL 14C 0000000000000000 POS2CNTL 180 0000000000000000 PMADDR 1B0 0000000000000000
POS1CNTH 14E 0000000000000000 POS2CNTH 182 0000000000000000 PMDOUT1 1B4 0000000000000000
POS1HLD 152 0000000000000000 POS2HLD 186 0000000000000000 PMDOUT2 1B6 0000000000000000
VEL1CNT 154 0000000000000000 VEL2CNT 188 0000000000000000 PMDIN1 1B8 0000000000000000
VEL1CNTH 156 0000000000000000 VEL2CNTH 18A 0000000000000000 PMDIN2 1BA 0000000000000000
VEL1HLD 15A 0000000000000000 VEL2HLD 18E 0000000000000000 PMAEN 1BC 0000000000000000
INT1TMRL 15C 0000000000000000 INT2TMRL 190 0000000000000000 PMSTAT 1C0 00--000010--1111
INT1TMRH 15E 0000000000000000 INT2TMRH 192 0000000000000000 PMWADDR 1C4 0000000000000000
INT1HLDL 160 0000000000000000 INT2HLDL 194 0000000000000000 PMRADDR 1C8 0000000000000000
INT1HLDH 162 0000000000000000 INT2HLDH 196 0000000000000000 PMRDIN 1CC 0000000000000000
INDX1CNTL 164 0000000000000000 INDX2CNTL 198 0000000000000000
INDX1CNTH 166 0000000000000000 INDX2CNTH 19A 0000000000000000
Legend: x = unknown or indeterminate value; “-” = unimplemented bits. Address values are in hexadecimal. Reset values are in binary.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 54 2017-2018 Microchip Technology Inc.
TABLE 4-4: SFR BLOCK 200h
Register Address All Resets Register Address All Resets Register Address All Resets
I2C1 and I2C2 U1SCCON 258 ----------00000- SPI1IMSKH 2C2 --0000000-000000
I2C1CONL 200 --01000000000000 U1SCINT 25A --00-000--00-000 SPI1URDTL 2C4 0000000000000000
I2C1CONH 202 ---------0000000 U1INT 25C --------00---0-- SPI1URDTH 2C6 0000000000000000
I2C1STAT 204 000--00000000000 U2MODE 260 --000-0000000000 SPI2CON1L 2C8 --00000000000000
I2C1ADD 208 ------0000000000 U2MODEH 262 00---00000000000 SPI2CON1H 2CA 0000000000000000
I2C1MSK 20C ------0000000000 U2STA 264 0000000010000000 SPI2CON2L 2CC -----------00000
I2C1BRG 210 0000000000000000 U2STAH 266 0000-00000101110 SPI2CON2H 2CE ----------------
I2C1TRN 214 --------11111111 U2BRG 268 0000000000000000 SPI2STATL 2D0 ---00--0001-1-00
I2C1RCV 218 --------00000000 U2BRGH 26A ------------0000 SPI2STATH 2D2 --000000--000000
I2C2CONL 21C --01000000000000 U2RXREG 26C --------xxxxxxxx SPI2BUFL 2D4 0000000000000000
I2C2CONH 21E ---------0000000 U2TXREG 270 --------xxxxxxxx SPI2BUFH 2D6 0000000000000000
I2C2STAT 220 000--00000000000 U2P1 274 -------000000000 SPI2BRGL 2D8 ---xxxxxxxxxxxxx
I2C2ADD 224 ------0000000000 U2P2 276 -------000000000 SPI2BRGH 2DA ----------------
I2C2MSK 228 ------0000000000 U2P3 278 0000000000000000 SPI2IMSKL 2DC ---00--0000-0-00
I2C2BRG 22C 0000000000000000 U2P3H 27A --------00000000 SPI2IMSKH 2DE --0000000-000000
I2C2TRN 230 --------11111111 U2TXCHK 27C --------00000000 SPI2URDTL 2E0 0000000000000000
I2C2RCV 234 --------00000000 U2RXCHK 27E --------00000000 SPI2URDTH 2E2 0000000000000000
UART1 and UART2 U2SCCON 280 ----------00000- SPI3CON1L 2E4 --00000000000000
U1MODE 238 --000-0000000000 U2SCINT 282 --00-000--00-000 SPI3CON1H 2E6 0000000000000000
U1MODEH 23A 00---00000000000 U2INT 284 --------00---0-- SPI3CON2L 2E8 -----------00000
U1STA 23C 0000000010000000 SPI SPI3CON2H 2EA ----------------
U1STAH 23E 0000-00000101110 SPI1CON1L 2AC --00000000000000 SPI3STATL 2EC ---00--0001-1-00
U1BRG 240 0000000000000000 SPI1CON1H 2AE 0000000000000000 SPI3STATH 2EE --000000--000000
U1BRGH 242 ------------0000 SPI1CON2L 2B0 -----------00000 SPI3BUFL 2F0 0000000000000000
U1RXREG 244 --------xxxxxxxx SPI1CON2H 2B2 ---------------- SPI3BUFH 2F2 0000000000000000
U1TXREG 248 --------xxxxxxxx SPI1STATL 2B4 ---00--0001-1-00 SPI3BRGL 2F4 ---xxxxxxxxxxxxx
U1P1 24C -------000000000 SPI1STATH 2B6 --000000--000000 SPI3BRGH 2F6 ----------------
U1P2 24E -------000000000 SPI1BUFL 2B8 0000000000000000 SPI3IMSKL 2F8 ---00--0000-0-00
U1P3 250 0000000000000000 SPI1BUFH 2BA 0000000000000000 SPI3IMSKH 2FA --0000000-000000
U1P3H 252 --------00000000 SPI1BRGL 2BC ---xxxxxxxxxxxxx SPI3URDTL 2FC 0000000000000000
U1TXCHK 254 --------00000000 SPI1BRGH 2BE ---------------- SPI3URDTH 2F3 0000000000000000
U1RXCHK 256 --------00000000 SPI1IMSKL 2C0 ---00--0000-0-00
Legend: x = unknown or indeterminate value; “-” = unimplemented bits. Address values are in hexadecimal. Reset values are in binary.
2017-2018 Microchip Technology Inc. DS70005349E-page 55
dsPIC33CK256MP508 FAMILY
TABLE 4-5: SFR BLOCK 300h
Register Address All Resets Register Address All Resets Register Address All Resets
High-Speed PWM PG1TRIGA 354 0000000000000000 PG3CLPCIH 3AA 0000-00000000000
PCLKCON 300 00-----0--00--00 PG1TRIGB 356 0000000000000000 PG3FFPCIL 3AC 0000000000000000
FSCL 302 0000000000000000 PG1TRIGC 358 0000000000000000 PG3FFPCIH 3AE 0000-00000000000
FSMINPER 304 0000000000000000 PG1DTL 35A --00000000000000 PG3SPCIL 3B0 0000000000000000
MPHASE 306 0000000000000000 PG1DTH 35C --00000000000000 PG3SPCIH 3B2 0000-00000000000
MDC 308 0000000000000000 PG1CAP 35E 0000000000000000 PG3LEBL 3B4 0000000000000000
MPER 30A 0000000000000000 PG2CONL 360 -----0000--00000 PG3LEBH 3B6 -----000----0000
LFSR 30C 0000000000000000 PG2CONH 362 000-000000--0000 PG3PHASE 3B8 0000000000000000
CMBTRIGL 30E --------00000000 PG2STAT 364 0000000000000000 PG3DC 3BA 0000000000000000
CMBTRIGH 310 --------00000000 PG2IOCONL 366 0000000000000000 PG3DCA 3BC --------00000000
LOGCONA 312 000000000000-000 PG2IOCONH 368 0000---0--000000 PG3PER 3BE 0000000000000000
LOGCONB 314 000000000000-000 PG2EVTL 36A 00000000---00000 PG3TRIGA 3C0 0000000000000000
LOGCONC 316 000000000000-000 PG2EVTH 36C 0000--0000000000 PG3TRIGB 3C2 0000000000000000
LOGCOND 318 000000000000-000 PG2FPCIL 36E 0000000000000000 PG3TRIGC 3C4 0000000000000000
LOGCONE 31A 000000000000-000 PG2FPCIH 370 0000-00000000000 PG3DTL 3C6 --00000000000000
LOGCONF 31C 000000000000-000 PG2CLPCIL 372 0000000000000000 PG3DTH 3C8 --00000000000000
PWMEVTA 31E 0000----0000-000 PG2CLPCIH 374 0000-00000000000 PG3CAP 3CA 0000000000000000
PWMEVTB 320 0000----0000-000 PG2FFPCIL 376 0000000000000000 PG4CONL 3CC -----0000--00000
PWMEVTC 322 0000----0000-000 PG2FFPCIH 378 0000-00000000000 PG4CONH 3CE 000-000000--0000
PWMEVTD 324 0000----0000-000 PG2SPCIL 37A 0000000000000000 PG4STAT 3D0 0000000000000000
PWMEVTE 326 0000----0000-000 PG2SPCIH 37C 0000-00000000000 PG4IOCONL 3D2 0000000000000000
PWMEVTF 328 0000----0000-000 PG2LEBL 37E 0000000000000000 PG4IOCONH 3D4 0000---0--000000
PG1CONL 32A -----0000--00000 PG2LEBH 380 -----000----0000 PG4EVTL 3D6 00000000---00000
PG1CONH 32C 000-000000--0000 PG2PHASE 382 0000000000000000 PG4EVTH 3D8 0000--0000000000
PG1STAT 32E 0000000000000000 PG2DC 384 0000000000000000 PG4FPCIL 3DA 0000000000000000
PG1IOCONL 330 0000000000000000 PG2DCA 386 --------00000000 PG4FPCIH 3DC 0000-00000000000
PG1IOCONH 332 0000---0--000000 PG2PER 388 0000000000000000 PG4CLPCIL 3DE 0000000000000000
PG1EVTL 334 00000000---00000 PG2TRIGA 38A 0000000000000000 PG4CLPCIH 3E0 0000-00000000000
PG1EVTH 336 0000--0000000000 PG2TRIGB 38C 0000000000000000 PG4FFPCIL 3E2 0000000000000000
PG1FPCIL 338 0000000000000000 PG2TRIGC 38E 0000000000000000 PG4FFPCIH 3E4 0000-00000000000
PG1FPCIH 33A 0000-00000000000 PG2DTL 390 --00000000000000 PG4SPCIL 3E6 0000000000000000
PG1CLPCIL 33C 0000000000000000 PG2DTH 392 --00000000000000 PG4SPCIH 3E8 0000-00000000000
PG1CLPCIH 33E 0000-00000000000 PG2CAP 394 0000000000000000 PG4LEBL 3EA 0000000000000000
PG1FFPCIL 340 0000000000000000 PG3CONL 396 -----0000--00000 PG4LEBH 3EC -----000----0000
PG1FFPCIH 342 0000-00000000000 PG3CONH 398 000-000000--0000 PG4PHASE 3EE 0000000000000000
PG1SPCIL 344 0000000000000000 PG3STAT 39A 0000000000000000 PG4DC 3F0 0000000000000000
PG1SPCIH 346 0000-00000000000 PG3IOCONL 39C 0000000000000000 PG4DCA 3F2 --------00000000
PG1LEBL 348 0000000000000000 PG3IOCONH 39E 0000---0--000000 PG4PER 3F4 0000000000000000
PG1LEBH 34A -----000----0000 PG3EVTL 3A0 00000000---00000 PG4TRIGA 3F6 0000000000000000
PG1PHASE 34C 0000000000000000 PG3EVTH 3A2 0000--0000000000 PG4TRIGB 3F8 0000000000000000
PG1DC 34E 0000000000000000 PG3FPCIL 3A4 0000000000000000 PG4TRIGC 3FA 0000000000000000
PG1DCA 350 --------00000000 PG3FPCIH 3A6 0000-00000000000 PG4DTL 3FC --00000000000000
PG1PER 352 0000000000000000 PG3CLPCIL 3A8 0000000000000000 PG4DTH 3FE --00000000000000
Legend: x = unknown or indeterminate value; “-” = unimplemented bits. Address values are in hexadecimal. Reset values are in binary.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 56 2017-2018 Microchip Technology Inc.
TABLE 4-6: SFR BLOCK 400h
Register Address All Resets Register Address All Resets Register Address All Resets
High-Speed PWM (Continued) PG6FPCIH 448 0000-00000000000 PG7DC 492 0000000000000000
PG4CAP 400 0000000000000000 PG6CLPCIL 44A 0000000000000000 PG7DCA 494 --------00000000
PG5CONL 402 -----0000--00000 PG6CLPCIH 44C 0000-00000000000 PG7PER 496 0000000000000000
PG5CONH 404 000-000000--0000 PG6FFPCIL 44E 0000000000000000 PG7TRIGA 498 0000000000000000
PG5STAT 406 0000000000000000 PG6FFPCIH 450 0000-00000000000 PG7TRIGB 49A 0000000000000000
PG5IOCONL 408 0000000000000000 PG6SPCIL 452 0000000000000000 PG7TRIGC 49C 0000000000000000
PG5IOCONH 40A 0000---0--000000 PG6SPCIH 454 0000-00000000000 PG7DTL 49E --00000000000000
PG5EVTL 40C 00000000---00000 PG6LEBL 456 0000000000000000 PG7DTH 4A0 --00000000000000
PG5EVTH 40E 0000--0000000000 PG6LEBH 458 -----000----0000 PG7CAP 4A2 0000000000000000
PG5FPCIL 410 0000000000000000 PG6PHASE 45A 0000000000000000 PG8CONL 4A4 -----0000--00000
PG5FPCIH 412 0000-00000000000 PG6DC 45C 0000000000000000 PG8CONH 4A6 000-000000--0000
PG5CLPCIL 414 0000000000000000 PG6DCA 45E --------00000000 PG8STAT 4A8 0000000000000000
PG5CLPCIH 416 0000-00000000000 PG6PER 460 0000000000000000 PG8IOCONL 4AA 0000000000000000
PG5FFPCIL 418 0000000000000000 PG6TRIGA 462 0000000000000000 PG8IOCONH 4AC 0000---0--000000
PG5FFPCIH 41A 0000-00000000000 PG6TRIGB 464 0000000000000000 PG8EVTL 4AE 00000000---00000
PG5SPCIL 41C 0000000000000000 PG6TRIGC 466 0000000000000000 PG8EVTH 4B0 0000--0000000000
PG5SPCIH 41E 0000-00000000000 PG6DTL 468 --00000000000000 PG8FPCIL 4B2 0000000000000000
PG5LEBL 420 0000000000000000 PG6DTH 46A --00000000000000 PG8FPCIH 4B4 0000-00000000000
PG5LEBH 422 -----000----0000 PG6CAP 46C 0000000000000000 PG8CLPCIL 4B6 0000000000000000
PG5PHASE 424 0000000000000000 PG7CONL 46E -----0000--00000 PG8CLPCIH 4B8 0000-00000000000
PG5DC 426 0000000000000000 PG7CONH 470 000-000000--0000 PG8FFPCIL 4BA 0000000000000000
PG5DCA 428 --------00000000 PG7STAT 472 0000000000000000 PG8FFPCIH 4BC 0000-00000000000
PG5PER 42A 0000000000000000 PG7IOCONL 474 0000000000000000 PG8SPCIL 4BE 0000000000000000
PG5TRIGA 42C 0000000000000000 PG7IOCONH 476 0000---0--000000 PG8SPCIH 4C0 0000-00000000000
PG5TRIGB 42E 0000000000000000 PG7EVTL 478 00000000---00000 PG8LEBL 4C2 0000000000000000
PG5TRIGC 430 0000000000000000 PG7EVTH 47A 0000--0000000000 PG8LEBH 4C4 -----000----0000
PG5DTL 432 --00000000000000 PG7FPCIL 47C 0000000000000000 PG8PHASE 4C6 0000000000000000
PG5DTH 434 --00000000000000 PG7FPCIH 47E 0000-00000000000 PG8DC 4C8 0000000000000000
PG5CAP 436 0000000000000000 PG7CLPCIL 480 0000000000000000 PG8DCA 4CA --------00000000
PG6CONL 438 -----0000--00000 PG7CLPCIH 482 0000-00000000000 PG8PER 4CC 0000000000000000
PG6CONH 43A 000-000000--0000 PG7FFPCIL 484 0000000000000000 PG8TRIGA 4CE 0000000000000000
PG6STAT 43C 0000000000000000 PG7FFPCIH 486 0000-00000000000 PG8TRIGB 4D0 0000000000000000
PG6IOCONL 43E 0000000000000000 PG7SPCIL 488 0000000000000000 PG8TRIGC 4D2 0000000000000000
PG6IOCONH 440 0000---0--000000 PG7SPCIH 48A 0000-00000000000 PG8DTL 4D4 --00000000000000
PG6EVTL 442 00000000---00000 PG7LEBL 48C 0000000000000000 PG8DTH 4D6 --00000000000000
PG6EVTH 444 0000--0000000000 PG7LEBH 48E -----000----0000 PG8CAP 4D8 0000000000000000
PG6FPCIL 446 0000000000000000 PG7PHASE 490 0000000000000000
Legend: x = unknown or indeterminate value; “-” = unimplemented bits. Address values are in hexadecimal. Reset values are in binary.
2017-2018 Microchip Technology Inc. DS70005349E-page 57
dsPIC33CK256MP508 FAMILY
TABLE 4-7: SFR BLOCK 500h
Register Address All Resets Register Address All Resets Register Address All Resets
CAN C1TSCONL 5D4 ------0000000000 C1RXOVIFH 5EA 0000000000000000
C1CONL 5C0 --00011101100000 C1TSCONH 5D6 -------------000 C1TXATIFL 5EC 0000000000000000
C1CONH 5C2 0000010010011000 C1VECL 5D8 ---00000-1000000 C1TXATIFH 5EE 0000000000000000
C1NBTCFGL 5C4 00001111-0001111 C1VECH 5DA 11000000-1000000 C1TXREQL 5F0 0000000000000000
C1NBTCFGH 5C6 0000000000111110 C1INTL 5DC 000000-----00000 C1TXREQH 5F2 0000000000000000
C1DBTCFGL 5C8 ----0011----0011 C1INTH 5DE 000000-----00000 C1TRECL 5F4 0000000000000000
C1DBTCFGH 5CA 00000000---01110 C1RXIFL 5E0 0000000000000000 C1TRECH 5F6 ----------100000
C1TDCL 5CC 00010000--000000 C1RXIFH 5E2 0000000000000000 C1BDIAG0L 5F8 0000000000000000
C1TDCH 5CE ------00------10 C1TXIFL 5E4 000000000000000- C1BDIAG0H 5FA 0000000000000000
C1TBCL 5D0 0000000000000000 C1TXIFH 5E6 0000000000000000 C1BDIAG1L 5FC 0000000000000000
C1TBCH 5D2 0000000000000000 C1RXOVIFL 5E8 000000000000000- C1BDIAG1H 5FE 00000-000-000000
Legend: x = unknown or indeterminate value; “-” = unimplemented bits. Address values are in hexadecimal. Reset values are in binary.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 58 2017-2018 Microchip Technology Inc.
TABLE 4-8: SFR BLOCK 600h
Register Address All Resets Register Address All Resets Register Address All Resets
CAN (Continued) C1FIFOSTA6 65C ---0000000000000 C1FLTOBJ6L 6B0 0000000000000000
C1TEFCONL 600 -----1-0--0-0000 C1FIFOUA6L 660 xxxxxxxxxxxxxxxx C1FLTOBJ6H 6B2 0000000000000000
C1TEFCONH 602 ---00000-------- C1FIFOUA6H 662 xxxxxxxxxxxxxxxx C1MASK6L 6B4 0000000000000000
C1TEFSTA 604 ------------0000 C1FIFOCON7L 664 -----100x0000000 C1MASK6H 6B6 0000000000000000
C1TEFUAL 608 xxxxxxxxxxxxxxxx C1FIFOCON7H 666 00000000-1100000 C1FLTOBJ7L 7B8 0000000000000000
C1TEFUAH 60A xxxxxxxxxxxxxxxx C1FIFOSTA7 668 ---0000000000000 C1FLTOBJ7H 6BA 0000000000000000
C1FIFOBAL 60C 0000000000000000 C1FIFOUA7L 66C xxxxxxxxxxxxxxxx C1MASK7L 6BC 0000000000000000
C1FIFOBAH 60E 0000000000000000 C1FIFOUA7H 66E xxxxxxxxxxxxxxxx C1MASK7H 6BE 0000000000000000
C1TXQCONL 610 -----100x0000000 C1FLTCON0L 670 ---000000--00000 C1FLTOBJ8L 6C0 0000000000000000
C1TXQCONH 612 00000000-1100000 C1FLTCON0H 672 ---000000--00000 C1FLTOBJ8H 6C2 0000000000000000
C1TXQSTA 614 ---000000000-0-0 C1FLTCON1L 674 ---000000--00000 C1MASK8L 6C4 0000000000000000
C1TXQUAL 618 xxxxxxxxxxxxxxxx C1FLTCON1H 676 ---000000--00000 C1MASK8H 6C6 0000000000000000
C1TXQUAH 61A xxxxxxxxxxxxxxxx C1FLTCON2L 678 ---000000--00000 C1FLTOBJ9L 6C8 0000000000000000
C1FIFOCON1L 61C -----100x0000000 C1FLTCON2H 67A ---000000--00000 C1FLTOBJ9H 6CA 0000000000000000
C1FIFOCON1H 61E 00000000-1100000 C1FLTCON3L 67C ---000000--00000 C1MASK9L 6CC 0000000000000000
C1FIFOSTA1 620 ---0000000000000 C1FLTCON3H 67E ---000000--00000 C1MASK9H 6CE 0000000000000000
C1FIFOUA1L 624 xxxxxxxxxxxxxxxx C1FLTOBJ0L 680 0000000000000000 C1FLTOBJ10L 6D0 0000000000000000
C1FIFOUA1H 626 xxxxxxxxxxxxxxxx C1FLTOBJ0H 682 0000000000000000 C1FLTOBJ10H 6D2 0000000000000000
C1FIFOCON2L 628 -----100x0000000 C1MASK0L 684 0000000000000000 C1MASK10L 6D4 0000000000000000
C1FIFOCON2H 62A 00000000-1100000 C1MASK0H 686 0000000000000000 C1MASK10H 6D6 0000000000000000
C1FIFOSTA2 62C ---0000000000000 C1FLTOBJ1L 688 0000000000000000 C1FLTOBJ11L 6D8 0000000000000000
C1FIFOUA2L 630 xxxxxxxxxxxxxxxx C1FLTOBJ1H 68A 0000000000000000 C1FLTOBJ11H 6DA 0000000000000000
C1FIFOUA2H 632 xxxxxxxxxxxxxxxx C1MASK1L 68C 0000000000000000 C1MASK11L 6DC 0000000000000000
C1FIFOCON3L 634 -----100x0000000 C1MASK1H 68E 0000000000000000 C1MASK11H 6DE 0000000000000000
C1FIFOCON3H 636 00000000-1100000 C1FLTOBJ2L 690 0000000000000000 C1FLTOBJ12L 6E0 0000000000000000
C1FIFOSTA3 638 ---0000000000000 C1FLTOBJ2H 692 0000000000000000 C1FLTOBJ12H 6E2 0000000000000000
C1FIFOUA3L 63C xxxxxxxxxxxxxxxx C1MASK2L 694 0000000000000000 C1MASK12L 6E4 0000000000000000
C1FIFOUA3H 63E xxxxxxxxxxxxxxxx C1MASK2H 696 0000000000000000 C1MASK12H 6E6 0000000000000000
C1FIFOCON4L 640 -----100x0000000 C1FLTOBJ3L 698 0000000000000000 C1FLTOBJ13L 6E8 0000000000000000
C1FIFOCON4H 642 00000000-1100000 C1FLTOBJ3H 69A 0000000000000000 C1FLTOBJ13H 6EA 0000000000000000
C1FIFOSTA4 644 ---0000000000000 C1MASK3L 69C 0000000000000000 C1MASK13L 6EC 0000000000000000
C1FIFOUA4L 648 xxxxxxxxxxxxxxxx C1MASK3H 69C 0000000000000000 C1MASK13H 6EE 0000000000000000
C1FIFOUA4H 64A xxxxxxxxxxxxxxxx C1FLTOBJ4L 6A0 0000000000000000 C1FLTOBJ14L 6F0 0000000000000000
C1FIFOCON5L 64C -----100x0000000 C1FLTOBJ4H 6A2 0000000000000000 C1FLTOBJ14H 6F2 0000000000000000
C1FIFOCON5H 64E 00000000-1100000 C1MASK4L 6A4 0000000000000000 C1MASK14L 6F4 0000000000000000
C1FIFOSTA5 650 ---0000000000000 C1MASK4H 6A6 0000000000000000 C1MASK14H 6F6 0000000000000000
C1FIFOUA5L 654 xxxxxxxxxxxxxxxx C1FLTOBJ5L 6A8 0000000000000000 C1FLTOBJ15L 6F8 0000000000000000
C1FIFOUA5H 656 xxxxxxxxxxxxxxxx C1FLTOBJ5H 6AA 0000000000000000 C1FLTOBJ15H 6FA 0000000000000000
C1FIFOCON6L 658 -----100x0000000 C1MASK5L 6AC 0000000000000000 C1MASK15L 6FC 0000000000000000
C1FIFOCON6H 65A 00000000-1100000 C1MASK5H 6AE 0000000000000000 C1MASK15H 6FE 0000000000000000
Legend: x = unknown or indeterminate value; “-” = unimplemented bits. Address values are in hexadecimal. Reset values are in binary.
2017-2018 Microchip Technology Inc. DS70005349E-page 59
dsPIC33CK256MP508 FAMILY
TABLE 4-9: SFR BLOCK 800h
Register Address All Resets Register Address All Resets Register Address All Resets
Interrupts IPC3 846 -100-100-100-100 IPC35 886 -100-100--------
IFS0 800 0000000000-00000 IPC4 848 -100-100-100-100 IPC36 888 -------------100
IFS1 802 000000000-000000 IPC5 84A -100-----100-100 IPC37 88A -----100-100----
IFS2 804 00000-00-0000--- IPC6 84C -100-100-100-100 IPC38 88C ---------100-100
IFS3 806 00000000-0-00000 IPC7 84E -100-100-100-100 IPC40 890 ---------100-100
IFS4 808 0000000000000-00 IPC8 850 -100-100-------- IPC42 894 -100-100-100-100
IFS5 80A 000000000000000- IPC9 852 -----100-100-100 IPC43 896 -100-100-100-100
IFS6 80C 0000000000000000 IPC10 854 -100-----100-100 IPC44 898 -100-100-100-100
IFS7 80E 0000000000000000 IPC11 856 -100-100-100-100 IPC45 89A -----100-100-100
IFS8 810 00-------------0 IPC12 858 -100-100-100-100 IPC47 89E -100-100-100----
IFS9 812 ------00-00----0 IPC13 85A -----100-----100 IPC48 8A0 -100-100-100-100
IFS10 814 00000000------00 IPC14 85C -100-100-100-100 INTCON1 8C0 0000000000-0000-
IFS11 816 000------0000000 IPC15 85E -100-100-100---- INTCON2 8C2 000----0----0000
IFS12 818 ------------0000 IPC16 860 -100-----100-100 INTCON3 8C4 ------00---0---0
IEC0 820 0000000000-00000 IPC17 862 -100-100-100-100 INTCON4 8C6 --------------00
IEC1 822 000000000-000000 IPC18 864 -100-100-100-100 INTTREG 8C8 000-0000-0000000
IEC2 824 00000-00-0000--- IPC19 866 -100-100-100-100 Flash
IEC3 826 00000000-0-00000 IPC20 868 -100-100-100---- NVMCON 8D0 00000000----0000
IEC4 828 0000000000000-00 IPC21 86A -100-100-100-100 NVMADR 8D2 0000000000000000
IEC5 82A 000000000000000- IPC22 86C -100-100-100-100 NVMADRU 8D4 --------00000000
IEC6 82C 0000000000000000 IPC23 86E -100-100-100-100 NVMKEY 8D6 --------00000000
IEC7 82E 0000000000000000 IPC24 870 -100-100-100-100 NVMSRCADRL 8D8 0000000000000000
IEC8 830 0--------------0 IPC25 872 -100-100-100-100 NVMSRCADRH 8DA --------00000000
IEC9 832 ------00-00----0 IPC26 874 -100-100-100-100 CBG
IEC10 834 00000000------00 IPC27 876 -100-100-100-100 AMPCON1L 8DC -------------000
IEC11 836 000------0000000 IPC28 878 -100-100-100-100 AMPCON1H 8DE -------------000
IEC12 838 ------------0000 IPC29 87A -100-100-100-100 BIASCON 8F0 ------------0000
IPC0 840 -100-100-100-100 IPC30 87C -100-100-100-100 IBIASCON0L 8F4 --000000--000000
IPC1 842 -100-100-----100 IPC31 87E -100-100-100-100 IBIASCON0H 8F6 --000000--000000
IPC2 844 -100-100-100-100 IPC32 880 -------------100
Legend: x = unknown or indeterminate value; “-” = unimplemented bits. Address values are in hexadecimal. Reset values are in binary.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 60 2017-2018 Microchip Technology Inc.
TABLE 4-10: SFR BLOCK 900h
Register Address All Resets Register Address All Resets Register Address All Resets
PTG CCP1CON3H 95A 0000------0-00-- CCP3PRL 9AC 1111111111111111
PTGCST 900 --00-00000x---00 CCP1STATL 95C -----0--00xx0000 CCP3PRH 9AE 1111111111111111
PTGCON 902 000000000000-000 CCP1STATH 95E -----------00000 CCP3RAL 9B0 0000000000000000
PTGBTE 904 xxxxxxxxxxxxxxxx CCP1TMRL 960 0000000000000000 CCP3RBL 9B4 0000000000000000
PTGBTEH 906 0000000000000000 CCP1TMRH 962 0000000000000000 CCP3BUFL 9B8 0000000000000000
PTGHOLD 908 0000000000000000 CCP1PRL 964 1111111111111111 CCP3BUFH 9BA 0000000000000000
PTGT0LIM 90C 0000000000000000 CCP1PRH 966 1111111111111111 CCP4CON1L 9BC --00000000000000
PTGT1LIM 910 0000000000000000 CCP1RAL 968 0000000000000000 CCP4CON1H 9BE 00--000000000000
PTGSDLIM 914 0000000000000000 CCP1RBL 96C 0000000000000000 CCP4CON2L 9C0 00-0----00000000
PTGC0LIM 918 0000000000000000 CCP1BUFL 970 0000000000000000 CCP4CON2H 9C2 -------100-00000
PTGC1LIM 91C 0000000000000000 CCP1BUFH 972 0000000000000000 CCP4CON3H 9C6 0000------0-00--
PTGADJ 920 0000000000000000 CCP2CON1L 974 --00000000000000 CCP4STATL 9C8 -----0--00xx0000
PTGL0 924 0000000000000000 CCP2CON1H 976 00--000000000000 CCP4STATH 9CA -----------00000
PTGQPTR 928 -----------00000 CCP2CON2L 978 00-0----00000000 CCP4TMRL 9CC 0000000000000000
PTGQUE0 930 xxxxxxxxxxxxxxxx CCP2CON2H 97A 0------100-00000 CCP4TMRH 9CE 0000000000000000
PTGQUE1 932 xxxxxxxxxxxxxxxx CCP2CON3H 97E 0000------0-00-- CCP4PRL 9D0 1111111111111111
PTGQUE2 934 xxxxxxxxxxxxxxxx CCP2STATL 980 -----0--00xx0000 CCP4PRH 9D2 1111111111111111
PTGQUE3 936 xxxxxxxxxxxxxxxx CCP2STATH 982 -----------00000 CCP4RAL 9D4 0000000000000000
PTGQUE4 938 xxxxxxxxxxxxxxxx CCP2TMRL 984 0000000000000000 CCP4RBL 9D8 0000000000000000
PTGQUE5 93A xxxxxxxxxxxxxxxx CCP2TMRH 986 0000000000000000 CCP4BUFL 9DC 0000000000000000
PTGQUE6 93C xxxxxxxxxxxxxxxx CCP2PRL 988 1111111111111111 CCP4BUFH 9DE 0000000000000000
PTGQUE7 93E xxxxxxxxxxxxxxxx CCP2PRH 98A 1111111111111111 CCP5CON1L 9E0 --00000000000000
PTGQUE8 940 xxxxxxxxxxxxxxxx CCP2RAL 98C 0000000000000000 CCP5CON1H 9E2 00--000000000000
PTGQUE9 942 xxxxxxxxxxxxxxxx CCP2RBL 990 0000000000000000 CCP5CON2L 9E4 00-0----00000000
PTGQUE10 944 xxxxxxxxxxxxxxxx CCP2BUFL 994 0000000000000000 CCP5CON2H 9E6 -------100-00000
PTGQUE11 946 xxxxxxxxxxxxxxxx CCP2BUFH 996 0000000000000000 CCP5CON3H 9EA 0000------0-00--
PTGQUE12 948 xxxxxxxxxxxxxxxx CCP3CON1L 998 --00000000000000 CCP5STATL 9EC -----0--00xx0000
PTGQUE13 94A xxxxxxxxxxxxxxxx CCP3CON1H 99A 00--000000000000 CCP5STATH 9EE -----------00000
PTGQUE14 94C xxxxxxxxxxxxxxxx CCP3CON2L 99C 00-0----00000000 CCP5TMRL 9F0 0000000000000000
PTGQUE15 94E xxxxxxxxxxxxxxxx CCP3CON2H 99E -------100-00000 CCP5TMRH 9F2 0000000000000000
CCP CCP3CON3H 9A2 0000------0-00-- CCP5PRL 9F4 1111111111111111
CCP1CON1L 950 --00000000000000 CCP3STATL 9A4 -----0--00xx0000 CCP5PRH 9F6 1111111111111111
CCP1CON1H 952 00--000000000000 CCP3STATH 9A6 -----------00000 CCP5RAL 9F8 0000000000000000
CCP1CON2L 954 00-0----00000000 CCP3TMRL 9A8 0000000000000000 CCP5RBL 9FC 0000000000000000
CCP1CON2H 956 -------100-00000 CCP3TMRH 9AA 0000000000000000
Legend: x = unknown or indeterminate value; “-” = unimplemented bits. Address values are in hexadecimal. Reset values are in binary.
2017-2018 Microchip Technology Inc. DS70005349E-page 61
dsPIC33CK256MP508 FAMILY
TABLE 4-11: SFR BLOCK A00h
Register Address All Resets Register Address All Resets Register Address All Resets
CCP (Continued) CCP7RBL A44 0000000000000000 CCP9RAL A88 0000000000000000
CCP5BUFL A00 0000000000000000 CCP7BUFL A48 0000000000000000 CCP9RBL A8C 0000000000000000
CCP5BUFH A02 0000000000000000 CCP7BUFH A4A 0000000000000000 CCP9BUFL A90 0000000000000000
CCP6CON1L A04 --00000000000000 CCP8CON1L A4C --00000000000000 CCP9BUFH A92 0000000000000000
CCP6CON1H A06 00--000000000000 CCP8CON1H A4E 00--000000000000 DMA
CCP6CON2L A08 00-0----00000000 CCP8CON2L A50 00-0----00000000 DMACON ABC --0------------0
CCP6CON2H A0A -------100-00000 CCP8CON2H A52 0------100-00000 DMABUF ABE 0000000000000000
CCP6CON3H A0E 0000------0-00-- CCP8CON3H A56 0000------0-00-- DMAL AC0 0000000000000000
CCP6STATL A10 -----0--00xx0000 CCP8STATL A58 -----0--00xx0000 DMAH AC2 0000000000000000
CCP6STATH A12 -----------00000 CCP8STATH A5A -----------00000 DMACH0 AC4 -----00000000000
CCP6TMRL A14 0000000000000000 CCP8TMRL A5C 0000000000000000 DMAINT0 AC6 --00000000000--0
CCP6TMRH A16 0000000000000000 CCP8TMRH A5E 0000000000000000 DMASRC0 AC8 0000000000000000
CCP6PRL A18 1111111111111111 CCP8PRL A60 1111111111111111 DMADST0 ACA 0000000000000000
CCP6PRH A1A 1111111111111111 CCP8PRH A62 1111111111111111 DMACNT0 ACC 0000000000000001
CCP6RAL A1C 0000000000000000 CCP8RAL A64 0000000000000000 DMACH1 ACE -----00000000000
CCP6RBL A20 0000000000000000 CCP8RBL A68 0000000000000000 DMAINT1 AD0 --00000000000--0
CCP6BUFL A24 0000000000000000 CCP8BUFL A6C 0000000000000000 DMASRC1 AD2 0000000000000000
CCP6BUFH A26 0000000000000000 CCP8BUFH A6E 0000000000000000 DMADST1 AD4 0000000000000000
CCP7CON1L A28 --00000000000000 CCP9CON1L A70 --00000000000000 DMACNT1 AD6 0000000000000001
CCP7CON1H A2A 00--000000000000 CCP9CON1H A72 00--000000000000 DMACH2 AD8 -----00000000000
CCP7CON2L A2C 00-0----00000000 CCP9CON2L A74 00-0----00000000 DMAINT2 ADA --00000000000--0
CCP7CON2H A2E -------100-00000 CCP9CON2H A76 --00000100-00000 DMASRC2 ADC 0000000000000000
CCP7CON3H A32 0000------0-00-- CCP9CON3L A78 ----------000000 DMADST2 ADE 0000000000000000
CCP7STATL A34 -----0--00xx0000 CCP9CON3H A7A 0000-000--000000 DMACNT2 AE0 0000000000000001
CCP7STATH A36 -----------00000 CCP9STATL A7C -----0--00xx0000 DMACH3 AE2 -----00000000000
CCP7TMRL A38 0000000000000000 CCP9STATH A7E -----------00000 DMAINT3 AE4 --00000000000--0
CCP7TMRH A3A 0000000000000000 CCP9TMRL A80 0000000000000000 DMASRC3 AE6 0000000000000000
CCP7PRL A3C 1111111111111111 CCP9TMRH A82 0000000000000000 DMADST3 AE8 0000000000000000
CCP7PRH A3E 1111111111111111 CCP9PRL A84 1111111111111111 DMACNT3 AEA 0000000000000001
CCP7RAL A40 0000000000000000 CCP9PRH A86 1111111111111111
Legend: x = unknown or indeterminate value; “-” = unimplemented bits. Address values are in hexadecimal. Reset values are in binary.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 62 2017-2018 Microchip Technology Inc.
TABLE 4-12: SFR BLOCK B00h
Register Address All Resets Register Address All Resets Register Address All Resets
ADC ADCMP1LO B44 0000000000000000 ADTRIG2H B8A 0000000000000000
ADCON1L B00 000-00000----000 ADCMP1HI B46 0000000000000000 ADTRIG3L B8C 0000000000000000
ADCON1H B02 --------011----- ADCMP2ENL B48 0000000000000000 ADTRIG3H B8E 0000000000000000
ADCON2L B04 00-0000000000000 ADCMP2ENH B4A ------0000000000 ADTRIG4L B90 0000000000000000
ADCON2H B06 00-0000000000000 ADCMP2LO B4C 0000000000000000 ADTRIG4H B92 0000000000000000
ADCON3L B08 0000000000000000 ADCMP2HI B4E 0000000000000000 ADTRIG5L B94 0000000000000000
ADCON3H B0A 000000000-----xx ADCMP3ENL B50 0000000000000000 ADTRIG5H B96 0000000000000000
ADCON4L B0C ------000-----xx ADCMP3ENH B52 ------0000000000 ADTRIG6L B98 0000000000000000
ADCON4H B0E 00----------0000 ADCMP3LO B54 0000000000000000 ADCMP0CON BA0 0000000000000000
ADMOD0L B10 0000000000000000 ADCMP3HI B56 0000000000000000 ADCMP1CON BA4 0000000000000000
ADMOD0H B12 0000000000000000 ADFL0DAT B68 0000000000000000 ADCMP2CON BA8 0000000000000000
ADMOD1L B14 0000000000000000 ADFL0CON B6A xxx0000000000000 ADCMP3CON BAC 0000000000000000
ADMOD1H B16 ------------0000 ADFL1DAT B6C 0000000000000000 ADLVLTRG L BD0 0000000000000000
ADIEL B20 xxxxxxxxxxxxxxxx ADFL1CON B6E xxx0000000000000 ADLVLTRGH BD2 ------xxxxxxxxxx
ADIEH B22 ------xxxxxxxxxx ADFL2DAT B70 0000000000000000 ADCORE0L BD4 0000000000000000
ADSTATL B30 0000000000000000 ADFL2CON B72 xxx0000000000000 ADCORE0H BD6 0000001100000000
ADSTATH B32 ------0000000000 ADFL3DAT B74 0000000000000000 ADCORE1L BD8 0000000000000000
ADCMP0ENL B38 0000000000000000 ADFL3CON B76 xxx0000000000000 ADCORE1H BDA 0000001100000000
ADCMP0ENH B3A ------0000000000 ADTRIG0L B80 0000000000000000 ADEIEL BF0 xxxxxxxxxxxxxxxx
ADCMP0LO B3C 0000000000000000 ADTRIG0H B82 0000000000000000 ADEIEH BF2 ------xxxxxxxxxx
ADCMP0HI B3E 0000000000000000 ADTRIG1L B84 0000000000000000 ADEISTATL BF8 xxxxxxxxxxxxxxxx
ADCMP1ENL B40 0000000000000000 ADTRIG1H B86 0000000000000000 ADEISTATH BFA ------xxxxxxxxxx
ADCMP1ENH B42 ------0000000000 ADTRIG2L B88 0000000000000000
Legend: x = unknown or indeterminate value; “-” = unimplemented bits. Address values are in hexadecimal. Reset values are in binary.
2017-2018 Microchip Technology Inc. DS70005349E-page 63
dsPIC33CK256MP508 FAMILY
TABLE 4-13: SFR BLOCK C00h
Register Address All Resets Register Address All Resets Register Address All Resets
ADC (Continued) ADCBUF16 C2C 0000000000000000 SLP1CONH C92 ----000---------
ADCON5L C00 --------0------- ADCBUF17 C2E 0000000000000000 SLP1DAT C94 0000000000000000
ADCON5H C02 ----xxxx0------- ADCBUF18 C30 0000000000000000 DAC2CONL C98 000--000x0000000
ADCBUF0 C0C 0000000000000000 ADCBUF19 C32 0000000000000000 DAC2CONH C9A ------0000000000
ADCBUF1 C0E 0000000000000000 ADCBUF20 C34 0000000000000000 DAC2DATL C9C 0000000000000000
ADCBUF2 C10 0000000000000000 ADCBUF21 C36 0000000000000000 DAC2DATH C9E 0000000000000000
ADCBUF3 C12 0000000000000000 ADCBUF22 C38 0000000000000000 SLP2CONL CA0 0000000000000000
ADCBUF4 C14 0000000000000000 ADCBUF23 C3A 0000000000000000 SLP2CONH CA2 ----000---------
ADCBUF5 C16 0000000000000000 ADCBUF24 C3C 0000000000000000 SLP2DAT CA4 0000000000000000
ADCBUF6 C18 0000000000000000 ADCBUF25 C3E 0000000000000000 DAC3CONL CA8 000--000x0000000
ADCBUF7 C1A 0000000000000000 DAC DAC3CONH CAA ------0000000000
ADCBUF8 C1C 0000000000000000 DACCTRL1L C80 --0-----0000-000 DAC3DATL CAC 0000000000000000
ADCBUF9 C1E 0000000000000000 DACCTRL2L C84 ------0001010101 DAC3DATH CAE 0000000000000000
ADCBUF10 C20 0000000000000000 DACCTRL2H C86 ------0010001010 SLP3CONL CB0 0000000000000000
ADCBUF11 C22 0000000000000000 DAC1CONL C88 000--000x0000000 SLP3CONH CB2 ----000---------
ADCBUF12 C24 0000000000000000 DAC1CONH C8A ------0000000000 SLP3DAT CB4 0000000000000000
ADCBUF13 C26 0000000000000000 DAC1DATL C8C 0000000000000000 VREGCON CFC ----------000000
ADCBUF14 C28 0000000000000000 DAC1DATH C8E 0000000000000000
ADCBUF15 C2A 0000000000000000 SLP1CONL C90 0000000000000000
Legend: x = unknown or indeterminate value; “-” = unimplemented bits. Address values are in hexadecimal. Reset values are in binary.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 64 2017-2018 Microchip Technology Inc.
TABLE 4-14: SFR BLOCK D00h
Register Address All Resets Register Address All Resets Register Address All Resets
PPS RPINR21 D2E 1111111111111111 RPOR4 D88 --000000--000000
RPCON D00 ----0----------- RPINR22 D30 1111111111111111 RPOR5 D8A --000000--000000
RPINR0 D04 11111111-------- RPINR23 D32 --------11111111 RPOR6 D8C --000000--000000
RPINR1 D06 1111111111111111 RPINR26 D38 --------11111111 RPOR7 D8E --000000--000000
RPINR2 D08 11111111-------- RPINR27 D3A 1111111111111111 RPOR8 D90 --000000--000000
RPINR3 D0A 1111111111111111 RPINR29 D3E 1111111111111111 RPOR9 D92 --000000--000000
RPINR4 D0C 1111111111111111 RPINR30 D40 --------11111111 RPOR10 D94 --000000--000000
RPINR5 D0E 1111111111111111 RPINR32 D44 11111111-------- RPOR11 D96 --000000--000000
RPINR6 D10 1111111111111111 RPINR33 D46 --------11111111 RPOR12 D98 --000000--000000
RPINR7 D12 1111111111111111 RPINR37 D4E 1111111111111111 RPOR13 D9A --000000--000000
RPINR8 D14 1111111111111111 RPINR38 D50 --------11111111 RPOR14 D9C --000000--000000
RPINR9 D16 1111111111111111 RPINR42 D58 1111111111111111 RPOR15 D9E --000000--000000
RPINR10 D18 1111111111111111 RPINR43 D5A 1111111111111111 RPOR16 DA0 --000000--000000
RPINR11 D1A 1111111111111111 RPINR44 D5C 1111111111111111 RPOR17 DA2 --000000--000000
RPINR12 D1C 1111111111111111 RPINR45 D5E 1111111111111111 RPOR18 DA4 --000000--000000
RPINR13 D1E 1111111111111111 RPINR46 D60 1111111111111111 RPOR19 DA6 --000000--000000
RPINR14 D20 1111111111111111 RPINR47 D62 1111111111111111 RPOR20 DA8 --000000--000000
RPINR15 D22 1111111111111111 RPINR48 D64 1111111111111111 RPOR21 DAA --000000--000000
RPINR16 D24 1111111111111111 RPINR49 D66 --------11111111 RPOR22 DAC --000000--000000
RPINR17 D26 1111111111111111 RPOR0 D80 --000000--000000 RPOR23 DAE --000000--000000
RPINR18 D28 1111111111111111 RPOR1 D82 --000000--000000 RPOR24 DB0 --000000--000000
RPINR19 D2A 1111111111111111 RPOR2 D84 --000000--000000 RPOR25 DB2 --000000--000000
RPINR20 D2C 1111111111111111 RPOR3 D86 --000000--000000 RPOR26 DB4 --000000--000000
Legend: x = unknown or indeterminate value; “-” = unimplemented bits. Address values are in hexadecimal. Reset values are in binary.
2017-2018 Microchip Technology Inc. DS70005349E-page 65
dsPIC33CK256MP508 FAMILY
TABLE 4-15: SFR BLOCK E00h
Register Address All Resets Register Address All Resets Register Address All Resets
I/O Ports CNEN0B E2C 0000000000000000 CNPUD E5E 0000000000000000
ANSELA E00 -----------11111 CNSTATB E2E 0000000000000000 CNPDD E60 0000000000000000
TRISA E02 -----------11111 CNEN1B E30 0000000000000000 CNCOND E62 ----0-----------
PORTA E04 -----------xxxxx CNFB E32 0000000000000000 CNEN0D E64 0000000000000000
LATA E06 -----------xxxxx ANSELC E38 --------11--1111 CNSTATD E66 0000000000000000
ODCA E08 -----------00000 TRISC E3A 1111111111111111 CNEN1D E68 0000000000000000
CNPUA E0A -----------00000 PORTC E3C xxxxxxxxxxxxxxxx CNFD E6A 0000000000000000
CNPDA E0C -----------00000 LATC E3E xxxxxxxxxxxxxxxx ANSELE E70 ------------1111
CNCONA E0E ----0----------- ODCC E40 0000000000000000 TRISE E72 1111111111111111
CNEN0A E10 -----------00000 CNPUC E42 0000000000000000 PORTE E74 xxxxxxxxxxxxxxxx
CNSTATA E12 -----------00000 CNPDC E44 0000000000000000 LATE E76 xxxxxxxxxxxxxxxx
CNEN1A E14 -----------00000 CNCONC E46 ----0----------- ODCE E78 0000000000000000
CNFA E16 -----------00000 CNEN0C E48 0000000000000000 CNPUE E7A 0000000000000000
ANSELB E1C ------111--11111 CNSTATC E4A 0000000000000000 CNPDE E7C 0000000000000000
TRISB E1E 1111111111111111 CNEN1C E4C 0000000000000000 CNCONE E7E ----0-----------
PORTB E20 xxxxxxxxxxxxxxxx CNFC E4E 0000000000000000 CNEN0E E80 0000000000000000
LATB E22 xxxxxxxxxxxxxxxx ANSELD E54 --1-11---------- CNSTATE E82 0000000000000000
ODCB E24 0000000000000000 TRISD E56 1111111111111111 CNEN1E E84 0000000000000000
CNPUB E26 0000000000000000 PORTD E58 xxxxxxxxxxxxxxxx CNFE E86 0000000000000000
CNPDB E28 0000000000000000 LATD E5A xxxxxxxxxxxxxxxx Memory BIST
CNCONB E2A ----0----------- ODCD E5C 0000000000000000 MBISTCON EFC -------00--0---1
Legend: x = unknown or indeterminate value; “-” = unimplemented bits. Address values are in hexadecimal. Reset values are in binary.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 66 2017-2018 Microchip Technology Inc.
TABLE 4-16: SFR BLOCK F00h
Register Address All Resets Register Address All Resets Register Address All Resets
UART3 I2C3TRN F70 --------11111111 WDTCONH FB6 0000000000000000
U3MODE F00 --000-0000000000 I2C3RCV F74 --------00000000 REFO
U3MODEH F02 00---00000000000 Reset and Oscillator REFOCONL FB8 --000-00----0000
U3STA F04 0000000010000000 RCON F80 xx----x01x0xxxxx REFOCONH FBA 0000000000000000
U3STAH F06 0000-00000101110 OSCCON F84 0000-yyy0-0-0--0 REFOTRIML FBC 000000000-------
U3BRG F08 0000000000000000 CLKDIV F86 00110000--000001 Processor
U3BRGH F0A ------------0000 PLLFBD F88 ----000010010110 PCTRAPL FC0 xxxxxxxxxxxxxxxx
U3RXREG F0C --------xxxxxxxx PLLDIV F8A ------00-001-001 PCTRAPH FC2 --------xxxxxxxx
U3TXREG F10 --------xxxxxxxx OSCTUN F8C ----------000000 FEXL FC4 xxxxxxxxxxxxxxxx
U3P1 F14 -------000000000 ACLKCON1 F8E 00-----0--000001 FEXH FC6 --------xxxxxxxx
U3P2 F16 -------000000000 APLLFBD1 F90 ----000010010110 FEX2L FC8 xxxxxxxxxxxxxxxx
U3P3 F18 0000000000000000 APLLDIV1 F92 ------00-001-001 FEX2H FCA --------xxxxxxxx
U3P3H F1A --------00000000 CANCLKCON F9A 0---0000-0000000 VISI FCC xxxxxxxxxxxxxxxx
U3TXCHK F1C --------00000000 DCOTUN F9C --000000--000000 DPCL FCE xxxxxxxxxxxxxxxx
U3RXCHK F1E --------00000000 DCOCON F9E --0-xxxx-------- DPCH FD0 --------xxxxxxxx
U3SCCON F20 ----------00000- PMD APPO FD2 xxxxxxxxxxxxxxxx
U3SCINT F22 --00-000--00-000 PMD1 FA4 ----000-00000-00 APPI FD4 xxxxxxxxxxxxxxxx
U3INT F24 --------00---0-- PMD2 FA6 -------000000000 APPS FD6 -----------xxxxx
I2C3 PMD3 FA8 -------00-0-000- STROUTL FD8 xxxxxxxxxxxxxxxx
I2C3CONL F5C --01000000000000 PMD4 FAA ------------0--- STROUTH FDA xxxxxxxxxxxxxxxx
I2C3CONH F5E ---------0000000 PMD6 FAE ----0000-------- STROVCNT FDC xxxxxxxxxxxxxxxx
I2C3 STAT F60 000--00000000000 PMD7 FB0 -----000----0--- JDATAL FFA 0000000000000000
I2C3ADD F64 ------0000000000 PMD8 FB2 --000--0--00000- JDATAH FFC 0000000000000000
I2C3MSK F68 ------0000000000 WDT
I2C3BRG F6C 0000000000000000 WDTCONL FB4 ---0000000000000
Legend: x = unknown or indeterminate value; “-” =unimplemented bits; y = value set by Configuration bits. Address values are in hexadecimal.
Reset values are in binary.
2017-2018 Microchip Technology Inc. DS70005349E-page 67
dsPIC33CK256MP508 FAMILY
4.4.1 PAGED MEMORY SCHEME
The dsPIC33CK256MP508 architecture extends the
available Data Space through a paging scheme,
which allows the available Data Space to be
accessed using MOV instructions in a linear fashion
for pre- and post-modified Effective Addresses (EAs).
The upper half of the base Data Space address is
used in conjunction with the Data Space Read Page
(DSRPAG) register to form the Program Space
Visibility (PSV) address.
The Data Space Read Page (DSRPAG) register is
located in the SFR space. Construction of the
PSV address is shown in Figure 4-11. When
DSRPAG<9> = 1 and the base address bit,
EA<15> = 1, the DSRPAG<8:0> bits are concate-
nated onto EA<14:0> to form the 24-bit PSV read
address.
The paged memory scheme provides access to
multiple 32-Kbyte windows in the PSV memory. The
Data Space Read Page (DSRPAG) register, in combi-
nation with the upper half of the Data Space address,
can provide up to 8 Mbytes of PSV address space. The
paged data memory space is shown in Figure 4-12.
The Program Space (PS) can be accessed with a
DSRPAG of 0x200 or greater. Only reads from PS are
supported using the DSRPAG.
FIGURE 4-11: PROGRAM SPACE VISIBILITY (PSV) READ ADDRESS GENERATION
1
DSRPAG<8:0>
9 Bits
EA
15 Bits
Select
Byte24-Bit PSV EA
Select
EA
(DSRPAG = don’t care) No EDS Access
Select16-Bit DS EA
Byte
EA<15> = 0
DSRPAG
1
EA<15>
Note: DS read access when DSRPAG = 0x000 will force an address error trap.
= 1
DSRPAG<9>
Generate
PSV Address
0
dsPIC33CK256MP508 FAMILY
DS70005349E-page 68 2017-2018 Microchip Technology Inc.
FIGURE 4-12: PAGED DATA MEMORY SPACE
Program Memory
0x0000
SFR Registers
0x0FFF
0x1000
Up to 24-Kbyte
0x6FFF
Local Data Space
32-Kbyte
PSV Window
0xFFFF
0x7000
Program Space
0x00_0000
0x7F_FFFF
(lsw – <15:0>)
0x0000
(DSRPAG = 0x200)
PSV
Program
Memory
(DSRPAG = 0x2FF)
(DSRPAG = 0x300)
(DSRPAG = 0x3FF)
0x7FFF
0x0000
0x7FFF
0x0000
0x7FFF
0x0000
0x7FFF
DS_Addr<14:0>
DS_Addr<15:0>
(lsw)
PSV
Program
Memory
(MSB)
Table Address Space
(TBLPAG<7:0>)
Program Memory
0x00_0000
0x7F_FFFF
(MSB – <23:16>)
0x0000 (TBLPAG = 0x00)
0xFFFF
DS_Addr<15:0>
lsw Using
TBLRDL/TBLWTL,
MSB Using
TBLRDH/TBLWTH
0x0000 (TBLPAG = 0x7F)
0xFFFF
lsw Using
TBLRDL/TBLWTL,
MSB Using
TBLRDH/TBLWTH
(Instruction & Data)
No Writes Allowed
No Writes Allowed
No Writes Allowed
No Writes Allowed
RAM
0x7FFF
0x8000
2017-2018 Microchip Technology Inc. DS70005349E-page 69
dsPIC33CK256MP508 FAMILY
When a PSV page overflow or underflow occurs,
EA<15> is cleared as a result of the register indirect EA
calculation. An overflow or underflow of the EA in the
PSV pages can occur at the page boundaries when:
• The initial address, prior to modification,
addresses the PSV page
• The EA calculation uses Pre- or Post-Modified
Register Indirect Addressing; however, this does
not include Register Offset Addressing
In general, when an overflow is detected, the DSRPAG
register is incremented and the EA<15> bit is set to
keep the base address within the PSV window. When
an underflow is detected, the DSRPAG register is
decremented and the EA<15> bit is set to keep the base
address within the PSV window. This creates a linear
PSV address space, but only when using Register
Indirect Addressing modes.
Exceptions to the operation described above arise
when entering and exiting the boundaries of Page 0
and PSV spaces. Table 4 - 17 lists the effects of overflow
and underflow scenarios at different boundaries.
In the following cases, when overflow or underflow
occurs, the EA<15> bit is set and the DSRPAG is not
modified; therefore, the EA will wrap to the beginning of
the current page:
• Register Indirect with Register Offset Addressing
• Modulo Addressing
• Bit-Reversed Addressing
TABLE 4-17: OVERFLOW AND UNDERFLOW SCENARIOS AT PAGE 0 AND
PSV SPACE BOUNDARIES(2,3,4)
O/U,
R/W Operation
Before After
DSRPAG DS
EA<15>
Page
Description DSRPAG DS
EA<15>
Page
Description
O,
Read [++Wn]
or
[Wn++]
DSRPAG = 0x2FF 1PSV: Last lsw
page
DSRPAG = 0x300 1PSV: First MSB
page
O,
Read
DSRPAG = 0x3FF 1PSV: Last MSB
page
DSRPAG = 0x3FF 0See Note 1
U,
Read
[--Wn]
or
[Wn--]
DSRPAG = 0x001 1PSV page DSRPAG = 0x001 0See Note 1
U,
Read
DSRPAG = 0x200 1PSV: First lsw
page
DSRPAG = 0x200 0See Note 1
U,
Read
DSRPAG = 0x300 1PSV: First MSB
page
DSRPAG = 0x2FF 1PSV: Last lsw
page
Legend: O = Overflow, U = Underflow, R = Read, W = Write
Note 1: The Register Indirect Addressing now addresses a location in the base Data Space (0x0000-0x8000).
2: An EDS access, with DSRPAG = 0x000, will generate an address error trap.
3: Only reads from PS are supported using DSRPAG.
4: Pseudolinear Addressing is not supported for large offsets.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 70 2017-2018 Microchip Technology Inc.
4.4.1.1 Extended X Data Space
The lower portion of the base address space range,
between 0x0000 and 0x7FFF, is always accessible,
regardless of the contents of the Data Space Read
Page register. It is indirectly addressable through the
register indirect instructions. It can be regarded as
being located in the default EDS Page 0 (i.e., EDS
address range of 0x000000 to 0x007FFF with the base
address bit, EA<15> = 0, for this address range). How-
ever, Page 0 cannot be accessed through the upper
32 Kbytes, 0x8000 to 0xFFFF, of base Data Space in
combination with DSRPAG = 0x00. Consequently,
DSRPAG is initialized to 0x001 at Reset.
The remaining PSV pages are only accessible using
the DSRPAG register in combination with the upper
32 Kbytes, 0x8000 to 0xFFFF, of the base address,
where the base address bit, EA<15> = 1.
4.4.1.2 Software Stack
The W15 register serves as a dedicated Software
Stack Pointer (SSP), and is automatically modified by
exception processing, subroutine calls and returns;
however, W15 can be referenced by any instruction in
the same manner as all other W registers. This simpli-
fies reading, writing and manipulating the Stack Pointer
(for example, creating stack frames).
W15 is initialized to 0x1000 during all Resets. This
address ensures that the SSP points to valid RAM in all
dsPIC33CK256MP508 devices and permits stack avail-
ability for non-maskable trap exceptions. These can
occur before the SSP is initialized by the user software.
You can reprogram the SSP during initialization to any
location within Data Space.
The Software Stack Pointer always points to the first
available free word and fills the software stack,
working from lower toward higher addresses.
Figure 4-13 illustrates how it pre-decrements for a
stack pop (read) and post-increments for a stack push
(writes).
When the PC is pushed onto the stack, PC<15:0> are
pushed onto the first available stack word, then
PC<22:16> are pushed into the second available stack
location. For a PC push during any CALL instruction,
the MSB of the PC is zero-extended before the push,
as shown in Figure 4-13. During exception processing,
the MSB of the PC is concatenated with the lower eight
bits of the CPU STATUS Register, SR. This allows the
contents of SRL to be preserved automatically during
interrupt processing.
FIGURE 4-13: CALL STACK FRAME
Note 1: DSRPAG should not be used to access
Page 0. An EDS access with DSRPAG
set to 0x000 will generate an address
error trap.
2: Clearing the DSRPAG in software has no
effect.
Note: To protect against misaligned stack
accesses, W15<0> is fixed to ‘0’ by the
hardware.
Note 1: To maintain system Stack Pointer (W15)
coherency, W15 is never subject to
(EDS) paging, and is therefore, restricted
to an address range of 0x0000 to
0xFFFF. The same applies to the W14
when used as a Stack Frame Pointer
(SFA = 1).
2: As the stack can be placed in, and can
access X and Y spaces, care must be
taken regarding its use, particularly with
regard to local automatic variables in a C
development environment
<Free Word>
PC<15:1>
b‘000000000’
015
W15 (before CALL)
W15 (after CALL)
Stack Grows Toward
Higher Address
0x0000
PC<22:16>
CALL SUBR
2017-2018 Microchip Technology Inc. DS70005349E-page 71
dsPIC33CK256MP508 FAMILY
4.4.2 INSTRUCTION ADDRESSING
MODES
The addressing modes shown in Ta bl e 4 - 1 8 form the
basis of the addressing modes optimized to support the
specific features of individual instructions. The
addressing modes provided in the MAC class of
instructions differ from those in the other instruction
types.
4.4.2.1 File Register Instructions
Most file register instructions use a 13-bit address field
(f) to directly address data present in the first
8192 bytes of data memory (Near Data Space). Most
file register instructions employ a Working register, W0,
which is denoted as WREG in these instructions. The
destination is typically either the same file register or
WREG (with the exception of the MUL instruction),
which writes the result to a register or register pair. The
MOV instruction allows additional flexibility and can
access the entire Data Space.
4.4.2.2 MCU Instructions
The three-operand MCU instructions are of the form:
Operand 3 = Operand 1 <function> Operand 2
where Operand 1 is always a Working register (that is,
the addressing mode can only be Register Direct),
which is referred to as Wb. Operand 2 can be a W
register fetched from data memory or a 5-bit literal. The
result location can either be a W register or a data
memory location. The following addressing modes are
supported by MCU instructions:
• Register Direct
• Register Indirect
• Register Indirect Post-Modified
• Register Indirect Pre-Modified
• 5-Bit or 10-Bit Literal
TABLE 4-18: FUNDAMENTAL ADDRESSING MODES SUPPORTED
Note: Not all instructions support all the
addressing modes given above. Individ-
ual instructions can support different
subsets of these addressing modes.
Addressing Mode Description
File Register Direct The address of the file register is specified explicitly.
Register Direct The contents of a register are accessed directly.
Register Indirect The contents of Wn form the Effective Address (EA).
Register Indirect Post-Modified The contents of Wn form the EA. Wn is post-modified (incremented
or decremented) by a constant value.
Register Indirect Pre-Modified Wn is pre-modified (incremented or decremented) by a signed constant value
to form the EA.
Register Indirect with Register Offset
(Register Indexed)
The sum of Wn and Wb forms the EA.
Register Indirect with Literal Offset The sum of Wn and a literal forms the EA.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 72 2017-2018 Microchip Technology Inc.
4.4.2.3 Move and Accumulator Instructions
Move instructions, and the DSP accumulator class of
instructions, provide a greater degree of addressing
flexibility than other instructions. In addition to the
addressing modes supported by most MCU instructions,
move and accumulator instructions also support
Register Indirect with Register Offset Addressing mode,
also referred to as Register Indexed mode.
In summary, the following addressing modes are
supported by move and accumulator instructions:
• Register Direct
• Register Indirect
• Register Indirect Post-Modified
• Register Indirect Pre-Modified
• Register Indirect with Register Offset (Indexed)
• Register Indirect with Literal Offset
• 8-Bit Literal
• 16-Bit Literal
4.4.2.4 MAC Instructions
The dual source operand DSP instructions (CLR, ED,
EDAC, MAC, MPY, MPY.N, MOVSAC and MSC), also referred
to as MAC instructions, use a simplified set of addressing
modes to allow the user application to effectively
manipulate the Data Pointers through register indirect
tables.
The two-source operand prefetch registers must be
members of the set {W8, W9, W10, W11}. For data
reads, W8 and W9 are always directed to the X RAGU,
and W10 and W11 are always directed to the Y AGU.
The Effective Addresses generated (before and after
modification) must therefore, be valid addresses within
X Data Space for W8 and W9, and Y Data Space for
W10 and W11.
In summary, the following addressing modes are
supported by the MAC class of instructions:
• Register Indirect
• Register Indirect Post-Modified by 2
• Register Indirect Post-Modified by 4
• Register Indirect Post-Modified by 6
• Register Indirect with Register Offset (Indexed)
4.4.2.5 Other Instructions
Besides the addressing modes outlined previously,
some instructions use literal constants of various sizes.
For example, BRA (branch) instructions use 16-bit
signed literals to specify the branch destination directly,
whereas the DISI instruction uses a 14-bit unsigned
literal field. In some instructions, such as ULNK, the
source of an operand or result is implied by the opcode
itself. Certain operations, such as a NOP, do not have
any operands.
Note: For the MOV instructions, the addressing
mode specified in the instruction can differ
for the source and destination EA. How-
ever, the 4-bit Wb (Register Offset) field is
shared by both source and destination (but
typically only used by one).
Note: Not all instructions support all the
addressing modes given above. Individual
instructions may support different subsets
of these addressing modes.
Note: Register Indirect with Register Offset
Addressing mode is available only for W9
(in X space) and W11 (in Y space).
2017-2018 Microchip Technology Inc. DS70005349E-page 73
dsPIC33CK256MP508 FAMILY
4.4.3 MODULO ADDRESSING
Modulo Addressing mode is a method of providing an
automated means to support circular data buffers using
hardware. The objective is to remove the need for
software to perform data address boundary checks
when executing tightly looped code, as is typical in
many DSP algorithms.
Modulo Addressing can operate in either Data or
Program Space (since the Data Pointer mechanism is
essentially the same for both). One circular buffer can be
supported in each of the X (which also provides the point-
ers into Program Space) and Y Data Spaces. Modulo
Addressing can operate on any W Register Pointer. How-
ever, it is not advisable to use W14 or W15 for Modulo
Addressing since these two registers are used as the
Stack Frame Pointer and Stack Pointer, respectively.
In general, any particular circular buffer can be config-
ured to operate in only one direction, as there are certain
restrictions on the buffer start address (for incrementing
buffers) or end address (for decrementing buffers),
based upon the direction of the buffer.
The only exception to the usage restrictions is for
buffers that have a power-of-two length. As these
buffers satisfy the start and end address criteria, they
can operate in a Bidirectional mode (that is, address
boundary checks are performed on both the lower and
upper address boundaries).
4.4.3.1 Start and End Address
The Modulo Addressing scheme requires that a
starting and ending address be specified and loaded
into the 16-bit Modulo Buffer Address registers:
XMODSRT, XMODEND, YMODSRT and YMODEND
(see Tab le 4-2).
The length of a circular buffer is not directly specified. It is
determined by the difference between the corresponding
start and end addresses. The maximum possible length of
the circular buffer is 32K words (64 Kbytes).
4.4.3.2 W Address Register Selection
The Modulo and Bit-Reversed Addressing Control
register, MODCON<15:0>, contains enable flags, as well
as a W register field to specify the W Address registers.
The XWM and YWM fields select the registers that
operate with Modulo Addressing:
• If XWM = 1111, X RAGU and X WAGU Modulo
Addressing is disabled
•If YWM = 1111, Y AGU Modulo Addressing is
disabled
The X Address Space Pointer W (XWM) register, to
which Modulo Addressing is to be applied, is stored in
MODCON<3:0> (see Table 4.1). Modulo Addressing is
enabled for X Data Space when XWM is set to any
value other than ‘1111’ and the XMODEN bit is set
(MODCON<15>).
The Y Address Space Pointer W (YWM) register, to
which Modulo Addressing is to be applied, is stored in
MODCON<7:4>. Modulo Addressing is enabled for Y
Data Space when YWM is set to any value other than
‘1111’ and the YMODEN bit (MODCON<14>) is set.
FIGURE 4-14: MODULO ADDRESSING OPERATION EXAMPLE
Note: Y space Modulo Addressing EA calcula-
tions assume word-sized data (LSb of
every EA is always clear).
0x1100
0x1163
Start Addr = 0x1100
End Addr = 0x1163
Length = 0x0032 words
Byte
Address
MOV #0x1100, W0
MOV W0, XMODSRT ;set modulo start address
MOV #0x1163, W0
MOV W0, MODEND ;set modulo end address
MOV #0x8001, W0
MOV W0, MODCON ;enable W1, X AGU for modulo
MOV #0x0000, W0 ;W0 holds buffer fill value
MOV #0x1110, W1 ;point W1 to buffer
DO AGAIN, #0x31 ;fill the 50 buffer locations
MOV W0, [W1++] ;fill the next location
AGAIN: INC W0, W0 ;increment the fill value
dsPIC33CK256MP508 FAMILY
DS70005349E-page 74 2017-2018 Microchip Technology Inc.
4.4.3.3 Modulo Addressing Applicability
Modulo Addressing can be applied to the Effective
Address (EA) calculation associated with any W
register. Address boundaries check for addresses
equal to:
• The upper boundary addresses for incrementing
buffers
• The lower boundary addresses for decrementing
buffers
It is important to realize that the address boundaries
check for addresses less than, or greater than, the
upper (for incrementing buffers) and lower (for decre-
menting buffers) boundary addresses (not just equal
to). Address changes can, therefore, jump beyond
boundaries and still be adjusted correctly.
4.4.4 BIT-REVERSED ADDRESSING
Bit-Reversed Addressing mode is intended to simplify
data reordering for radix-2 FFT algorithms. It is
supported by the X AGU for data writes only.
The modifier, which can be a constant value or register
contents, is regarded as having its bit order reversed.
The address source and destination are kept in normal
order. Thus, the only operand requiring reversal is the
modifier.
4.4.4.1 Bit-Reversed Addressing
Implementation
Bit-Reversed Addressing mode is enabled in any of
these situations:
• BWMx bits (W register selection) in the MODCON
register are any value other than ‘1111’ (the stack
cannot be accessed using Bit-Reversed
Addressing)
• The BREN bit is set in the XBREV register
• The addressing mode used is Register Indirect
with Pre-Increment or Post-Increment
If the length of a bit-reversed buffer is M = 2N bytes,
the last ‘N’ bits of the data buffer start address must
be zeros.
XB<14:0> is the Bit-Reversed Addressing modifier, or
‘pivot point’, which is typically a constant. In the case of
an FFT computation, its value is equal to half of the FFT
data buffer size.
When enabled, Bit-Reversed Addressing is executed
only for Register Indirect with Pre-Increment or Post-
Increment Addressing and word-sized data writes. It
does not function for any other addressing mode or for
byte-sized data and normal addresses are generated
instead. When Bit-Reversed Addressing is active, the
W Address Pointer is always added to the address
modifier (XB) and the offset associated with the
Register Indirect Addressing mode is ignored. In addi-
tion, as word-sized data is a requirement, the LSb of
the EA is ignored (and always clear).
If Bit-Reversed Addressing has already been enabled
by setting the BREN (XBREV<15>) bit, a write to the
XBREV register should not be immediately followed by
an indirect read operation using the W register that has
been designated as the Bit-Reversed Pointer.
Note: The modulo corrected Effective Address
is written back to the register only when
Pre-Modify or Post-Modify Addressing
mode is used to compute the Effective
Address. When an address offset (such as
[W7 + W2]) is used, Modulo Addressing
correction is performed, but the contents of
the register remain unchanged.
Note: All bit-reversed EA calculations assume
word-sized data (LSb of every EA is
always clear). The XB value is scaled
accordingly to generate compatible (byte)
addresses.
Note: Modulo Addressing and Bit-Reversed
Addressing can be enabled simultaneously
using the same W register, but Bit-
Reversed Addressing operation will always
take precedence for data writes when
enabled.
2017-2018 Microchip Technology Inc. DS70005349E-page 75
dsPIC33CK256MP508 FAMILY
FIGURE 4-15: BIT-REVERSED ADDRESSING EXAMPLE
TABLE 4-19: BIT-REVERSED ADDRESSING SEQUENCE (16-ENTRY)
Normal Address Bit-Reversed Address
A3 A2 A1 A0 Decimal A3 A2 A1 A0 Decimal
0000 00000 0
0001 11000 8
0010 20100 4
0011 31100 12
0100 40010 2
0101 51010 10
0110 60110 6
0111 71110 14
1000 80001 1
1001 91001 9
1010 10 0101 5
1011 11 1101 13
1100 12 0011 3
1101 13 1011 11
1110 14 0111 7
1111 15 1111 15
b3 b2 b1 0
b2 b3 b4 0
Bit Locations Swapped Left-to-Right
Around Center of Binary Value
Bit-Reversed Address
XB = 0x0008 for a 16-Word Bit-Reversed Buffer
b7 b6 b5 b1
b7 b6 b5 b4b11 b10 b9 b8
b11 b10 b9 b8
b15 b14 b13 b12
b15 b14 b13 b12
Sequential Address
Pivot Point
dsPIC33CK256MP508 FAMILY
DS70005349E-page 76 2017-2018 Microchip Technology Inc.
4.4.5 INTERFACING PROGRAM AND
DATA MEMORY SPACES
The dsPIC33CK256MP508 family architecture uses a
24-bit wide Program Space (PS) and a 16-bit wide Data
Space (DS). The architecture is also a modified
Harvard scheme, meaning that data can also be
present in the Program Space. To use this data suc-
cessfully, it must be accessed in a way that preserves
the alignment of information in both spaces.
Aside from normal execution, the architecture of
the dsPIC33CK256MP508 family devices provides
two methods by which Program Space can be
accessed during operation:
• Using table instructions to access individual bytes
or words anywhere in the Program Space
• Remapping a portion of the Program Space into
the Data Space (Program Space Visibility)
Table instructions allow an application to read or write
to small areas of the program memory. This capability
makes the method ideal for accessing data tables that
need to be updated periodically. It also allows access
to all bytes of the program word. The remapping
method allows an application to access a large block of
data on a read-only basis, which is ideal for look-ups
from a large table of static data. The application can
only access the least significant word of the program
word.
TABLE 4-20: PROGRAM SPACE ADDRESS CONSTRUCTION
FIGURE 4-16: DATA ACCESS FROM PROGRAM SPACE ADDRESS GENERATION
Access Type Access
Space
Program Space Address
<23> <22:16> <15> <14:1> <0>
Instruction Access
(Code Execution)
User 0PC<22:1> 0
0xxx xxxx xxxx xxxx xxxx xxx0
TBLRD/TBLWT
(Byte/Word Read/Write)
User TBLPAG<7:0> Data EA<15:0>
0xxx xxxx xxxx xxxx xxxx xxxx
Configuration TBLPAG<7:0> Data EA<15:0>
1xxx xxxx xxxx xxxx xxxx xxxx
0
Program Counter
23 Bits
Program Counter(1)
TBLPAG
8 Bits
EA
16 Bits
Byte Select
0
1/0
User/Configuration
Table Operations(2)
Space Select
24 Bits
1/0
Note 1: The Least Significant bit (LSb) of Program Space addresses is always fixed as ‘0’ to maintain
word alignment of data in the Program and Data Spaces.
2: Table operations are not required to be word-aligned. Table Read operations are permitted in the
configuration memory space.
2017-2018 Microchip Technology Inc. DS70005349E-page 77
dsPIC33CK256MP508 FAMILY
4.4.5.1 Data Access from Program Memory
Using Table Instructions
The TBLRDL and TBLWTL instructions offer a direct
method of reading or writing the lower word of any
address within the Program Space without going
through Data Space. The TBLRDH and TBLWTH
instructions are the only method to read or write the
upper 8 bits of a Program Space word as data.
The PC is incremented by two for each successive
24-bit program word. This allows program memory
addresses to directly map to Data Space addresses.
Program memory can thus be regarded as two 16-bit
wide word address spaces, residing side by side, each
with the same address range. TBLRDL and TBLWTL
access the space that contains the least significant
data word. TBLRDH and TBLWTH access the space that
contains the upper data byte.
Two table instructions are provided to move byte or
word-sized (16-bit) data to and from Program Space.
Both function as either byte or word operations.
•TBLRDL (Table Read Low):
- In Word mode, this instruction maps the lower
word of the Program Space location (P<15:0>)
to a data address (D<15:0>)
- In Byte mode, either the upper or lower byte
of the lower program word is mapped to the
lower byte of a data address. The upper byte
is selected when Byte Select is ‘1’; the lower
byte is selected when it is ‘0’.
•TBLRDH (Table Read High):
- In Word mode, this instruction maps the entire
upper word of a program address (P<23:16>)
to a data address. The ‘phantom’ byte
(D<15:8>) is always ‘0’.
- In Byte mode, this instruction maps the upper
or lower byte of the program word to D<7:0>
of the data address in the TBLRDL instruc-
tion. The data is always ‘0’ when the upper
‘phantom’ byte is selected (Byte Select = 1).
In a similar fashion, two table instructions, TBLWTH
and TBLWTL, are used to write individual bytes or
words to a Program Space address. The details of
their operation are explained in Section 5.0 “Flash
Program Memory”.
For all table operations, the area of program memory
space to be accessed is determined by the Table Page
register (TBLPAG). TBLPAG covers the entire program
memory space of the device, including user application
and configuration spaces. When TBLPAG<7> = 0, the
table page is located in the user memory space. When
TBLPAG<7> = 1, the page is located in configuration
space.
FIGURE 4-17: ACCESSING PROGRAM MEMORY WITH TABLE INSTRUCTIONS
081623
00000000
00000000
00000000
00000000
‘Phantom’ Byte
TBLRDH.B (Wn<0> = 0)
TBLRDL.W
TBLRDL.B (Wn<0> = 1)
TBLRDL.B (Wn<0> = 0)
23 15 0
TBLPAG
02
0x000000
0x800000
0x020000
0x030000
Program Space
The address for the table operation is determined by the data EA
within the page defined by the TBLPAG register.
Only read operations are shown; write operations are also valid in
the user memory area.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 78 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 79
dsPIC33CK256MP508 FAMILY
5.0 FLASH PROGRAM MEMORY
The dsPIC33CK256MP508 family devices contain
internal Flash program memory for storing and
executing application code. The memory is readable,
writable and erasable during normal operation over the
entire VDD range.
Flash memory can be programmed in three ways:
• In-Circuit Serial Programming™ (ICSP™)
programming capability
• Enhanced In-Circuit Serial Programming
(Enhanced ICSP)
• Run-Time Self-Programming (RTSP)
ICSP allows for a dsPIC33CK256MP508 family device
to be serially programmed while in the end application
circuit. This is done with a Programming Clock and Pro-
gramming Data (PGCx/PGDx) line, and three other
lines for power (VDD), ground (VSS) and Master Clear
(MCLR). This allows customers to manufacture boards
with unprogrammed devices and then program the
device just before shipping the product. This also
allows the most recent firmware or a custom firmware
to be programmed.
Enhanced In-Circuit Serial Programming uses an
on-board bootloader, known as the Program Executive,
to manage the programming process. Using an SPI data
frame format, the Program Executive can erase,
program and verify program memory. For more informa-
tion on Enhanced ICSP, see the device programming
specification.
RTSP is accomplished using TBLRD (Table Read) and
TBLWT (Table Write) instructions. With RTSP, the user
application can write program memory data, two
instruction words or a row at a time, and erase a
program memory page.
5.1 Table Instructions and Flash
Programming
Regardless of the method used, all programming of
Flash memory is done with the Table Read and Table
Write instructions. These allow direct read and write
access to the program memory space from the data
memory while the device is in normal operating mode.
The 24-bit target address in the program memory is
formed using bits<7:0> of the TBLPAG register and the
Effective Address (EA) from a W register, specified in
the table instruction, as shown in Figure 5-1. The
TBLRDL and TBLWTL instructions are used to read or
write to bits<15:0> of program memory. TBLRDL and
TBLWTL can access program memory in both Word
and Byte modes. The TBLRDH and TBLWTH
instructions are used to read or write to bits<23:16> of
program memory. TBLRDH and TBLWTH can also
access program memory in Word or Byte mode.
FIGURE 5-1: ADDRESSING FOR TABLE REGISTERS
Note 1: This data sheet summarizes the features of
the dsPIC33CK256MP508 family of devices.
It is not intended to be a comprehensive
reference source. To complement the
information in this data sheet, refer to
“Dual Partition Flash Program Memory”
(www.microchip.com/DS70005156) in the
“dsPIC33/PIC24 Family Reference
Manual”).
2: Some registers and associated bits
described in this section may not be
available on all devices.
0
Program Counter
24 Bits
Program Counter
TBLPAG Reg
8 Bits
Working Reg EA
16 Bits
Byte
24-Bit EA
0
1/0
Select
Using
Table Instruction
Using
User/Configuration
Space Select
dsPIC33CK256MP508 FAMILY
DS70005349E-page 80 2017-2018 Microchip Technology Inc.
5.2 RTSP Operation
The dsPIC33CK256MP508 family Flash program
memory array is organized into rows of 128 instructions
or 384 bytes. RTSP allows the user application to erase a
single page (eight rows or 1024 instructions) of memory
at a time and to program one row at a time. It is possible
to program two instructions at a time as well.
The page erase and single row write blocks are
edge-aligned, from the beginning of program
memory, on boundaries of 3072 bytes and 384 bytes,
respectively. Table 33-18 in Section 33.0 “Electri-
cal Characteristics” lists the typical erase and
programming times.
Row programming is performed by loading 384 bytes
into data memory and then loading the address of the
first byte in that row into the NVMSRCADRL/H register.
Once the write has been initiated, the device will
automatically load the write latches, and increment the
NVMSRCADRL/H and the NVMADR(U) registers until
all bytes have been programmed. The RPDF bit
(NVMCON<9>) selects the format of the stored data in
RAM to be either compressed or uncompressed. See
Figure 5-2 for data formatting. Compressed data helps
to reduce the amount of required RAM by using the
upper byte of the second word for the MSB of the
second instruction.
The basic sequence for RTSP word programming is to
use the TBLWTL and TBLWTH instructions to load two of
the 24-bit instructions into the write latches found in
configuration memory space. Refer to Figure 4-1
through Figure 4-5 for write latch addresses. Program-
ming is performed by unlocking and setting the control
bits in the NVMCON register as follows:
1. Write 0x55 to NVMKEY.
2. Write 0xAA to NVMKEY.
3. Set the WR bit (NVMCON<15>) as a single
operation.
All erase and program operations may optionally use
the NVM interrupt to signal the successful completion
of the operation. For example, when performing Flash
write operations on the Inactive Partition in Dual
Partition mode, where the CPU remains running, it is
necessary to wait for the NVM interrupt before
programming the next block of Flash program memory.
FIGURE 5-2: UNCOMPRESSED/
COMPRESSED FORMAT
Note: MPLAB® XC16 provides a built-in C
language function for unlocking and
modifying the NVMCON register:
__builtin_write_NVM()
For more information, see the “MPLAB®
XC16 C Compiler User’s Guide”
(DS50002071).
MSB10x00
LSW2
LSW1
Increasing
Address
0
715
Even Byte
Address
MSB20x00
MSB1MSB2
LSW2
LSW1
Increasing
Address
0
715
Even Byte
Address
UNCOMPRESSED FORMAT (RPDF = 0)
COMPRESSED FORMAT (RPDF = 1)
2017-2018 Microchip Technology Inc. DS70005349E-page 81
dsPIC33CK256MP508 FAMILY
5.3 Programming Operations
A complete programming sequence is necessary for
programming or erasing the internal Flash in RTSP
mode. The processor stalls (waits) until the pro-
gramming operation is finished. Setting the WR bit
(NVMCON<15>) starts the operation and the WR bit is
automatically cleared when the operation is finished.
5.3.1 PROGRAMMING ALGORITHM FOR
FLASH PROGRAM MEMORY
Programmers can program two adjacent words
(24 bits x 2) of Program Flash Memory at a time on
every other word address boundary (0x000002,
0x000006, 0x00000A, etc.). To do this, it is necessary to
erase the page that contains the desired address of the
location the user wants to change. For protection against
accidental operations, the write initiate sequence for
NVMKEY must be used to allow any erase or program
operation to proceed. After the programming command
has been executed, the user application must wait for
the programming time until programming is complete.
The two instructions following the start of the
programming sequence should be NOPs. Refer to
Example 5-1 for Flash read and write operations.
EXAMPLE 5-1: FLASH WRITE/READ
/////////Flash write ////////////////////////
//Sample code for writing 0x123456 to address locations 0x10000 / 10002
NVMCON = 0x4001;
TBLPAG = 0xFA; // write latch upper address
NVMADR = 0x0000; // set target write address of general segment
NVMADRU = 0x0001;
__builtin_tblwtl(0, 0x3456); // load write latches
__builtin_tblwth (0,0x12);
__builtin_tblwtl(2, 0x3456); // load write latches
__builtin_tblwth (2,0x12);
asm volatile ("disi #5");
__builtin_write_NVM();
while(_WR == 1 ) ;
////////////Flash Read///////////////
//Sample code to read the Flash content of address 0x10000
// readDataL/ readDataH variables need to defined
TBLPAG = 0x0001;
readDataL = __builtin_tblrdl(0x0000);
readDataH = __builtin_tblrdh(0x0000);
dsPIC33CK256MP508 FAMILY
DS70005349E-page 82 2017-2018 Microchip Technology Inc.
5.3.2 ERROR CORRECTING CODE (ECC)
In order to improve program memory performance and
durability, these devices include Error Correcting Code
(ECC) functionality as an integral part of the Flash
memory controller. ECC can determine the presence of
single bit errors in program data, including which bit is
in error, and correct the data automatically without user
intervention. ECC cannot be disabled.
When data is written to program memory, ECC gener-
ates a 7-bit Hamming code parity value for every two
(24-bit) instruction words. The data is stored in blocks
of 48 data bits and 7 parity bits; parity data is not
memory-mapped and is inaccessible. When the data is
read back, the ECC calculates the parity on it and com-
pares it to the previously stored parity value. If a parity
mismatch occurs, there are two possible outcomes:
• Single bit error has occurred and has been
automatically corrected on readback.
• Double-bit error has occurred and the read data is
not changed.
Single bit error occurrence can be identified by the
state of the ECCSBEIF (IFS0<13>) bit. An interrupt can
be generated when the corresponding interrupt enable
bit is set, ECCSBEIE (IEC0<13>). The ECCSTATL
register contains the parity information for single bit
errors. The SECOUT<7:0> bits field contains the
expected calculated SEC parity and the SECIN<7:0>
bits contain the actual value from a Flash read opera-
tion. The SECSYNDx bits (ECCSTATH<7:0>) indicate
the bit position of the single bit error within the 48-bit
pair of instruction words. When no error is present,
SECINx equals SECOUTx and SECSYNDx is zero.
Double-bit errors result in a generic hard trap. The
ECCDBE bit (INTCON4<1>) will be set to identify the
source of the hard trap. If no Interrupt Service Routine
is implemented for the hard trap, a device Reset will
also occur. The ECCSTATH register contains double-
bit error status information. The DEDOUT bit is the
expected calculated DED parity and DEDIN is the
actual value from a Flash read operation. When no
error is present, DEDIN equals DEDOUT.
5.3.3 ECC FAULT INJECTION
To test Fault handling, an EEC error can be generated.
Both single and double-bit errors can be generated in
both the read and write data paths. Read path Fault
injection first reads the Flash data and then modifies it
prior to entering the ECC logic. Write path Fault injec-
tion modifies the actual data prior to it being written into
the target Flash and will cause an EEC error on a sub-
sequent Flash read. The following procedure is used to
inject a Fault:
1. Load the Flash target address into the
ECCADDR register.
2. Select 1st Fault bit determined by FLT1PTRx
(ECCCONH<7:0>). The target bit is inverted to
create the Fault.
3. If a double Fault is desired, select the 2nd Fault bit
determined by FLT2PTRx (ECCCONH<15:8>),
otherwise set to all ‘1’s.
4. Write 0x55 to NVMKEY.
5. Write 0xAA to NVMKEY.
6. Set the FLTINJ bit (ECCCONL<0>) in a single
operation to enable the ECC Fault injection
logic.
7. Perform a read or write to the Flash target
address.
2017-2018 Microchip Technology Inc. DS70005349E-page 83
dsPIC33CK256MP508 FAMILY
5.4 ICSP™ Write Inhibit
ICSP Write Inhibit is an access restriction feature that,
when activated, restricts all of Flash memory. Once acti-
vated, ICSP Write Inhibit permanently prevents ICSP
Flash programming and erase operations, and cannot
be deactivated. This feature is intended to prevent
alteration of Flash memory contents, with behavior
similar to One-Time-Programmable (OTP) devices.
RTSP, including erase and programming operations, is
not restricted when ICSP Write Inhibit is activated;
however, code to perform these actions must be pro-
grammed into the device before ICSP Write Inhibit is
activated. This allows for a bootloader-type application
to alter Flash contents with ICSP Write Inhibit activated.
Entry into ICSP and Enhanced ICSP modes is not
affected by ICSP Write Inhibit. In these modes, it will
continue to be possible to read configuration memory
space and any user memory space regions which are
not code protected. With ICSP writes inhibited, an
attempt to set WR (NVMCON<15>) = 1 will maintain
WR = 0, and instead, set WRERR (NVMCON<13>) = 1.
All Enhanced ICSP erase and programming commands
will have no effect with self-checked programming
commands returning a FAIL response opcode (PASS if
the destination already exactly matched the requested
programming data).
Once ICSP Write Inhibit is activated, it is not possible for
a device executing in Debug mode to erase/write Flash,
nor can a debug tool switch the device to Production
mode. ICSP Write Inhibit should therefore only be
activated on devices programmed for production.
The JTAG port, when enabled, can be used to map
ICSP signals to JTAG I/O pins. All Flash erase/
programming operations initiated via the JTAG port will
therefore also be blocked after activating ICSP Write
Inhibit.
5.4.1 ACTIVATING ICSP™ WRITE INHIBIT
ICSP Write Inhibit is activated by executing a pair of
NVMCON double-word programming commands to save
two 16-bit activation values in the configuration memory
space. The target NVM addresses and values required
for activation are shown in Ta b l e 5 - 1 . Once both
addresses contain their activation values, ICSP Write
Inhibit will take permanent effect on the next device
Reset. Neither address can be reset, erased or otherwise
modified, through any means, after being successfully
programmed, even if one of the addresses has not been
programmed.
Only the lower 16 data bits stored at the activation
addresses are evaluated; the upper 8 bits and second
24-bit word written by the double-word programming
(NVMOP<3:0>) should be written as ‘0’s. The addresses
can be programmed in any order and also during sepa-
rate ICSP/Enhanced ICSP/RTSP sessions, but any
attempt to program an incorrect 16-bit value or use a row
programming operation to program the values will be
aborted without altering the existing data.
TABLE 5-1: ICSP™ WRITE INHIBIT
ACTIVATION ADDRESSES
AND DATA
Caution: It is not possible to deactivate ICSP
Write Inhibit.
Configuration
Memory Address
ICSP Write
Inhibit Activation
Value
Write Lock 1 0x801034 0x006D63
Write Lock 2 0x801038 0x006870
dsPIC33CK256MP508 FAMILY
DS70005349E-page 84 2017-2018 Microchip Technology Inc.
5.5 Dual Partition Flash Configuration
For dsPIC33CK256MP508 devices operating in Dual
Partition Flash Program Memory modes, the Inactive
Partition can be erased and programmed without stall-
ing the processor. The same programming algorithms
are used for programming and erasing the Flash in the
Inactive Partition, as described in Section 5.2 “RTSP
Operation”. On top of the page erase option, the entire
Flash memory of the Inactive Partition can be erased
by configuring the NVMOP<3:0> bits in the NVMCON
register.
5.5.1 FLASH PARTITION SWAPPING
The Boot Sequence Number is used for determining
the Active Partition at start-up and is encoded within
the FBTSEQ Configuration register bits. Unlike most
Configuration registers, which only utilize the lower
16 bits of the program memory, FBTSEQ is a 24-bit
Configuration Word. The Boot Sequence Number
(BSEQ) is a 12-bit value and is stored in FBTSEQ
twice. The true value is stored in bits, FBTSEQ<11:0>,
and its complement is stored in bits, FBTSEQ<23:12>.
At device Reset, the sequence numbers are read and
the partition with the lowest sequence number
becomes the Active Partition. If one of the Boot
Sequence Numbers is invalid, the device will select the
partition with the valid Boot Sequence Number, or
default to Partition 1 if both sequence numbers are
invalid. See Section 30.0 “Special Features” for more
information.
The BOOTSWP instruction provides an alternative
means of swapping the Active and Inactive Partitions
(soft swap) without the need for a device Reset. The
BOOTSWP must always be followed by a GOTO instruc-
tion. The BOOTSWP instruction swaps the Active and
Inactive Partitions, and the PC vectors to the location
specified by the GOTO instruction in the newly Active
Partition.
It is important to note that interrupts should temporarily
be disabled while performing the soft swap sequence
and that after the partition swap, all peripherals and
interrupts which were enabled remain enabled. Addi-
tionally, the RAM and stack will maintain state after the
switch. As a result, it is recommended that applications
using soft swaps jump to a routine that will reinitialize
the device in order to ensure the firmware runs as
expected. The Configuration registers will have no
effect during a soft swap.
For robustness of operation, in order to execute the
BOOTSWP instruction, it is necessary to execute the
NVM unlocking sequence as follows:
1. Write 0x55 to NVMKEY.
2. Write 0xAA to NVMKEY.
3. Execute the BOOTSWP instruction.
If the unlocking sequence is not performed, the
BOOTSWP instruction will be executed as a forced NOP
and a GOTO instruction, following the BOOTSWP instruc-
tion, will be executed, causing the PC to jump to that
location in the current operating partition.
The SFTSWP and P2ACTIV bits in the NVMCON
register are used to determine a successful swap of the
Active and Inactive Partitions, as well as which partition
is active. After the BOOTSWP and GOTO instructions, the
SFTSWP bit should be polled to verify the partition
swap has occurred and then cleared for the next panel
swap event.
5.5.2 DUAL PARTITION MODES
While operating in Dual Partition mode, the
dsPIC33CK256MP508 family devices have the option
for both partitions to have their own defined security
segments, as shown in Figure 30-4. Alternatively, the
device can operate in Protected Dual Partition mode,
where Partition 1 becomes permanently erase/write-
protected. Protected Dual Partition mode allows for a
“Factory Default” mode, which provides a fail-safe
backup image to be stored in Partition 1.
dsPIC33CK256MP508 family devices can also operate
in Privileged Dual Partition mode, where additional
security protections are implemented to allow for pro-
tection of intellectual property when multiple parties
have software within the device. In Privileged Dual Par-
tition mode, both partitions place additional restrictions
on the FBSLIM register. These prevent changes to the
size of the Boot Segment and General Segment,
ensuring that neither segment will be altered.
Note 1: The application software to be loaded
into the Inactive Partition will have the
address of the Active Partition. The
bootloader firmware will need to offset
the address by 0x400000 in order to write
to the Inactive Partition.
2017-2018 Microchip Technology Inc. DS70005349E-page 85
dsPIC33CK256MP508 FAMILY
FIGURE 5-3: RELATIONSHIP BETWEEN PARTITIONS 1/2 AND ACTIVE/INACTIVE PARTITIONS
Active Partition
Active Partition
Inactive Partition
Inactive Partition
Partition 1
BSEQ = 10
Partition 2
BSEQ = 15
Partition 2
BSEQ = 15
Partition 1
BSEQ = 10
Partition 1
BSEQ = 10
Partition 2
BSEQ = 15
Partition 1
BSEQ = 10
Partition 2
BSEQ = 15
Partition 1
BSEQ = 10
Partition 2
BSEQ = 5
Partition 2
BSEQ = 5
Partition 1
BSEQ = 10
000000h
400000h
000000h
400000h
000000h
400000h
000000h
400000h
000000h
400000h
000000h
400000h
Reset
BOOTSWP
Instruction
Reprogram BSEQ
Reset
dsPIC33CK256MP508 FAMILY
DS70005349E-page 86 2017-2018 Microchip Technology Inc.
5.5.3 PROGRAM FLASH MEMORY
CONTROL REGISTERS
Five SFRs are used to write and erase the Program
Flash Memory: NVMCON, NVMKEY, NVMADR,
NVMADRU and NVMSRCADRL/H.
The NVMCON register (Register 5-1) selects the
operation to be performed (page erase, word/row
program, Inactive Partition erase) and initiates the
program or erase cycle.
NVMKEY (Register 5-4) is a write-only register that is
used for write protection. To start a programming or erase
sequence, the user application must consecutively write
0x55 and 0xAA to the NVMKEY register.
There are two NVM Address registers: NVMADRU and
NVMADR. These two registers, when concatenated,
form the 24-bit Effective Address (EA) of the selected
word/row for programming operations, or the selected
page for erase operations. The NVMADRU register is
used to hold the upper eight bits of the EA, while the
NVMADR register is used to hold the lower 16 bits of
the EA.
For row programming operation, data to be written to
Program Flash Memory is written into data memory
space (RAM) at an address defined by the
NVMSRCADRL/H register (location of first element in
row programming data).
2017-2018 Microchip Technology Inc. DS70005349E-page 87
dsPIC33CK256MP508 FAMILY
REGISTER 5-1: NVMCON: NONVOLATILE MEMORY (NVM) CONTROL REGISTER
R/SO-0(1)R/W-0(1)R/W-0(1)R/W-0 R/C-0 R-0 R/W-0 R/C-0
WR WREN WRERR NVMSIDL(2)SFTSWP P2ACTIV RPDF URERR
bit 15 bit 8
U-0 U-0 U-0 U-0 R/W-0(1)R/W-0(1)R/W-0(1)R/W-0(1)
— — — —NVMOP3
(3,4)NVMOP2(3,4)NVMOP1(3,4)NVMOP0(3,4)
bit 7 bit 0
Legend: C = Clearable bit SO = Settable Only bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 WR: Write Control bit(1)
1 = Initiates a Flash memory program or erase operation; the operation is self-timed and the bit is
cleared by hardware once the operation is complete
0 = Program or erase operation is complete and inactive
bit 14 WREN: Write Enable bit(1)
1 = Enables Flash program/erase operations
0 = Inhibits Flash program/erase operations
bit 13 WRERR: Write Sequence Error Flag bit(1)
1 = An improper program or erase sequence attempt, or termination has occurred (bit is set automatically
on any set attempt of the WR bit)
0 = The program or erase operation completed normally
bit 12 NVMSIDL: NVM Stop in Idle Control bit(2)
1 = Flash voltage regulator goes into Standby mode during Idle mode
0 = Flash voltage regulator is active during Idle mode
bit 11 SFTSWP: Partition Soft Swap Status bit
1 = Partitions have been successfully swapped using the BOOTSWP instruction (soft swap)
0 = Awaiting successful partition swap using the BOOTSWP instruction or a device Reset will determine
the Active Partition based on the FBTSEQ register
bit 10 P2ACTIV: Partition 2 Active Status bit
1 = Partition 2 Flash is mapped into the active region
0 = Partition 1 Flash is mapped into the active region
bit 9 RPDF: Row Programming Data Format bit
1 = Row data to be stored in RAM is in compressed format
0 = Row data to be stored in RAM is in uncompressed format
bit 8 URERR: Row Programming Data Underrun Error bit
1 = Indicates row programming operation has been terminated
0 = No data underrun error is detected
bit 7-4 Unimplemented: Read as ‘0’
Note 1: These bits can only be reset on a POR.
2: If this bit is set, there will be minimal power savings (IIDLE), and upon exiting Idle mode, there is a delay
(TVREG) before Flash memory becomes operational.
3: All other combinations of NVMOP<3:0> are unimplemented.
4: Execution of the PWRSAV instruction is ignored while any of the NVM operations are in progress.
5: Two adjacent words on a 4-word boundary are programmed during execution of this operation.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 88 2017-2018 Microchip Technology Inc.
bit 3-0 NVMOP<3:0>: NVM Operation Select bits(1,3,4)
1111 = Reserved
1110 = User memory bulk erase operation
1101 = Reserved
1100 = Reserved
1011 = Reserved
1010 = Reserved
1001 = Reserved
1000 = Boot mode (FBOOT) double-word program operation
0111 = Reserved
0101 = Reserved
0100 = Inactive Partition memory erase operation
0011 = Memory page erase operation
0010 = Memory row program operation
0001 = Memory double-word operation(5)
0000 = Reserved
REGISTER 5-1: NVMCON: NONVOLATILE MEMORY (NVM) CONTROL REGISTER (CONTINUED)
Note 1: These bits can only be reset on a POR.
2: If this bit is set, there will be minimal power savings (IIDLE), and upon exiting Idle mode, there is a delay
(TVREG) before Flash memory becomes operational.
3: All other combinations of NVMOP<3:0> are unimplemented.
4: Execution of the PWRSAV instruction is ignored while any of the NVM operations are in progress.
5: Two adjacent words on a 4-word boundary are programmed during execution of this operation.
2017-2018 Microchip Technology Inc. DS70005349E-page 89
dsPIC33CK256MP508 FAMILY
REGISTER 5-2: NVMADR: NONVOLATILE MEMORY LOWER ADDRESS REGISTER
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
NVMADR<15:8>
bit 15 bit 8
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
NVMADR<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 NVMADR<15:0>: Nonvolatile Memory Lower Write Address bits
Selects the lower 16 bits of the location to program or erase in Program Flash Memory. This register
may be read or written to by the user application.
REGISTER 5-3: NVMADRU: NONVOLATILE MEMORY UPPER ADDRESS REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
NVMADRU<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-0 NVMADRU<23:16>: Nonvolatile Memory Upper Write Address bits
Selects the upper eight bits of the location to program or erase in Program Flash Memory. This register
may be read or written to by the user application.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 90 2017-2018 Microchip Technology Inc.
REGISTER 5-4: NVMKEY: NONVOLATILE MEMORY KEY REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
W-0 W-0 W-0 W-0 W-0 W-0 W-0 W-0
NVMKEY<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-0 NVMKEY<7:0>: NVM Key Register bits (write-only)
2017-2018 Microchip Technology Inc. DS70005349E-page 91
dsPIC33CK256MP508 FAMILY
REGISTER 5-5: NVMSRCADRL: NVM SOURCE DATA ADDRESS REGISTER LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
NVMSRCADR<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
NVMSRCADR<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 NVMSRCADR<15:0>: NVM Source Data Address bits
The RAM address of the data to be programmed into Flash when the NVMOP<3:0> bits are set to row
programming.
REGISTER 5-6: NVMSRCADRH: NVM SOURCE DATA ADDRESS REGISTER HIGH
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
NVMSRCADR<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-0 NVMSRCADR<23:16>: NVM Source Data Address bits
The RAM address of the data to be programmed into Flash when the NVMOP<3:0> bits are set to row
programming.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 92 2017-2018 Microchip Technology Inc.
5.5.4 ECC CONTROL REGISTERS
REGISTER 5-7: ECCCONL: ECC FAULT INJECTION CONFIGURATION REGISTER LOW
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0
— — — — — — —FLTINJ
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-1 Unimplemented: Read as ‘0’
bit 0 FLTINJ: Fault Injection Sequence Enable bit
1 = Enabled
0 =Disabled
REGISTER 5-8: ECCCONH: ECC FAULT INJECTION CONFIGURATION REGISTER HIGH
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FLT2PTR<7:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FLT1PTR<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 FLT2PTR<7:0>: ECC Fault Injection Bit Pointer 2 bits
11111111-00111000 = No Fault injection occurs
00110111 = Fault injection (bit inversion) occurs on bit 55 of ECC bit order
•
•
•
00000001 = Fault injection (bit inversion) occurs on bit 1 of ECC bit order
00000000 = Fault injection (bit inversion) occurs on bit 0 of ECC bit order
bit 0 FLT1PTR<7:0>: ECC Fault Injection Bit Pointer 1 bits
11111111-00111000 = No Fault injection occurs
00110111 = Fault injection occurs on bit 55 of ECC bit order
•
•
•
00000001 = Fault injection occurs on bit 1 of ECC bit order
00000000 = Fault injection occurs on bit 0 of ECC bit order
2017-2018 Microchip Technology Inc. DS70005349E-page 93
dsPIC33CK256MP508 FAMILY
REGISTER 5-9: ECCADDRL: ECC FAULT INJECT ADDRESS COMPARE REGISTER LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ECCADDR<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ECCADDR<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 ECCADDR<15:0>: ECC Fault Injection NVM Address Match Compare bits
REGISTER 5-10: ECCADDRH: ECC FAULT INJECT ADDRESS COMPARE REGISTER HIGH
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ECCADDR<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-0 ECCADDR<23:16>: ECC Fault Injection NVM Address Match Compare bits
dsPIC33CK256MP508 FAMILY
DS70005349E-page 94 2017-2018 Microchip Technology Inc.
REGISTER 5-11: ECCSTATL: ECC SYSTEM STATUS DISPLAY REGISTER LOW
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
SECOUT<7:0>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
SECIN<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 SECOUT<7:0>: Calculated Single Error Correction Parity Value bits
bit 7-0 SECIN<7:0>: Read Single Error Correction Parity Value bits
SECIN<7:0> bits are the actual parity value of a Flash read operation.
REGISTER 5-12: ECCSTATH: ECC SYSTEM STATUS DISPLAY REGISTER HIGH
U-0 U-0 U-0 U-0 U-0 U-0 R-0 R-0
— — — — — — DEDOUT DEDIN
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
SECSYND<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9 DEDOUT: Calculated Dual Bit Error Detection Parity bit
bit 8 DEDIN: Read Dual Bit Error Detection Parity bit
DEDIN is the actual parity value of a Flash read operation.
bit 7-0 SECSYND<7:0>: Calculated ECC Syndrome Value bits
Indicates the bit location that contains the error.
2017-2018 Microchip Technology Inc. DS70005349E-page 95
dsPIC33CK256MP508 FAMILY
6.0 RESETS
The Reset module combines all Reset sources and
controls the device Master Reset Signal, SYSRST. The
following is a list of device Reset sources:
• POR: Power-on Reset
• BOR: Brown-out Reset
•MCLR
: Master Clear Pin Reset
•SWR: RESET Instruction
• WDTO: Watchdog Timer Time-out Reset
• CM: Configuration Mismatch Reset
• TRAPR: Trap Conflict Reset
• IOPUWR: Illegal Condition Device Reset
- Illegal Opcode Reset
- Uninitialized W Register Reset
- Security Reset
A simplified block diagram of the Reset module is
shown in Figure 6-1.
Any active source of Reset will make the SYSRST
signal active. On system Reset, some of the registers
associated with the CPU and peripherals are forced to
a known Reset state, and some are unaffected.
All types of device Reset set a corresponding status bit
in the RCON register to indicate the type of Reset (see
Register 6-1).
A POR clears all the bits, except for the BOR and POR
bits (RCON<1:0>) that are set. The user application
can set or clear any bit, at any time, during code
execution. The RCON bits only serve as status bits.
Setting a particular Reset status bit in software does
not cause a device Reset to occur.
The RCON register also has other bits associated with
the Watchdog Timer and device power-saving states.
The function of these bits is discussed in other sections
of this data sheet.
For all Resets, the default clock source is determined
by the FNOSC<2:0> bits in the FOSCSEL Configura-
tion register. The value of the FNOSCx bits is loaded
into the NOSC<2:0> (OSCCON<10:8>) bits on Reset,
which in turn, initializes the system clock.
FIGURE 6-1: RESET SYSTEM BLOCK DIAGRAM
Note 1: This data sheet summarizes the features of
the dsPIC33CK256MP508 family of
devices. It is not intended to be a
comprehensive reference source. To com-
plement the information in this data sheet,
refer to “Reset” (www.microchip.com/
DS70602) in the “dsPIC33/PIC24 Family
Reference Manual”.
2: Some registers and associated bits
described in this section may not be
available on all devices.
Note: Refer to the specific peripheral section
or Section 4.0 “Memory Organization”
of this data sheet for register Reset states.
Note: The status bits in the RCON register
should be cleared after they are read so
that the next RCON register value after a
device Reset is meaningful.
MCLR
VDD
BOR
Sleep or Idle
RESET Instruction
WDT
Module
Glitch Filter
Trap Conflict
Illegal Opcode
Uninitialized W Register
SYSRST
VDD Rise
Detect
POR
Configuration Mismatch
Security Reset
Internal
Regulator
dsPIC33CK256MP508 FAMILY
DS70005349E-page 96 2017-2018 Microchip Technology Inc.
6.1 Reset Resources
Many useful resources are provided on the main
product page of the Microchip website for the devices
listed in this data sheet. This product page contains the
latest updates and additional information.
6.1.1 KEY RESOURCES
•“Reset” (DS70602) in the “dsPIC33/PIC24 Family
Reference Manual”
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All Related “dsPIC33/PIC24 Family Reference
Manual” Sections
• Development Tools
2017-2018 Microchip Technology Inc. DS70005349E-page 97
dsPIC33CK256MP508 FAMILY
REGISTER 6-1: RCON: RESET CONTROL REGISTER(1)
R/W-0 R/W-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
TRAPR IOPUWR — — — —CMVREGS
bit 15 bit 8
R/W-1 R/W-0 r-0 R/W-0 R/W-0 R/W-0 R/W-1 R/W-1
EXTR SWR — WDTO SLEEP IDLE BOR POR
bit 7 bit 0
Legend: r = Reserved bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 TRAPR: Trap Reset Flag bit
1 = A Trap Conflict Reset has occurred
0 = A Trap Conflict Reset has not occurred
bit 14 IOPUWR: Illegal Opcode or Uninitialized W Register Access Reset Flag bit
1 = An illegal opcode detection, an illegal address mode or Uninitialized W register used as an
Address Pointer caused a Reset
0 = An illegal opcode or Uninitialized W Register Reset has not occurred
bit 13-10 Unimplemented: Read as ‘0’
bit 9 CM: Configuration Mismatch Flag bit
1 = A Configuration Mismatch Reset has occurred.
0 = A Configuration Mismatch Reset has not occurred
bit 8 VREGS: Voltage Regulator Standby During Sleep bit
1 = Voltage regulator is active during Sleep
0 = Voltage regulator goes into Standby mode during Sleep
bit 7 EXTR: External Reset (MCLR) Pin bit
1 = A Master Clear (pin) Reset has occurred
0 = A Master Clear (pin) Reset has not occurred
bit 6 SWR: Software RESET (Instruction) Flag bit
1 = A RESET instruction has been executed
0 = A RESET instruction has not been executed
bit 5 Reserved: Read as ‘0’
bit 4 WDTO: Watchdog Timer Time-out Flag bit
1 = WDT time-out has occurred
0 = WDT time-out has not occurred
bit 3 SLEEP: Wake-up from Sleep Flag bit
1 = Device has been in Sleep mode
0 = Device has not been in Sleep mode
bit 2 IDLE: Wake-up from Idle Flag bit
1 = Device has been in Idle mode
0 = Device has not been in Idle mode
bit 1 BOR: Brown-out Reset Flag bit
1 = A Brown-out Reset has occurred
0 = A Brown-out Reset has not occurred
Note 1: All of the Reset status bits can be set or cleared in software. Setting one of these bits in software does not
cause a device Reset.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 98 2017-2018 Microchip Technology Inc.
bit 0 POR: Power-on Reset Flag bit
1 = A Power-on Reset has occurred
0 = A Power-on Reset has not occurred
REGISTER 6-1: RCON: RESET CONTROL REGISTER(1) (CONTINUED)
Note 1: All of the Reset status bits can be set or cleared in software. Setting one of these bits in software does not
cause a device Reset.
2017-2018 Microchip Technology Inc. DS70005349E-page 99
dsPIC33CK256MP508 FAMILY
7.0 INTERRUPT CONTROLLER
The dsPIC33CK256MP508 family interrupt controller
reduces the numerous peripheral interrupt request
signals to a single interrupt request signal to the
dsPIC33CK256MP508 family CPU.
The interrupt controller has the following features:
• Six Processor Exceptions and Software Traps
• Seven User-Selectable Priority Levels
• Interrupt Vector Table (IVT) with a Unique Vector
for each Interrupt or Exception Source
• Fixed Priority within a Specified User Priority Level
• Fixed Interrupt Entry and Return Latencies
• Alternate Interrupt Vector Table (AIVT) for Debug
Support
7.1 Interrupt Vector Table
The dsPIC33CK256MP508 family Interrupt Vector
Table (IVT), shown in Figure 7-1, resides in program
memory, starting at location, 000004h. The IVT contains
six non-maskable trap vectors and up to 246 sources of
interrupts. In general, each interrupt source has its own
vector. Each interrupt vector contains a 24-bit wide
address. The value programmed into each interrupt
vector location is the starting address of the associated
Interrupt Service Routine (ISR).
Interrupt vectors are prioritized in terms of their natural
priority. This priority is linked to their position in the
vector table. Lower addresses generally have a higher
natural priority. For example, the interrupt associated
with Vector 0 takes priority over interrupts at any other
vector address.
7.1.1 ALTERNATE INTERRUPT VECTOR
TAB LE
The Alternate Interrupt Vector Table (AIVT), shown in
Figure 7-2, is available only when the Boot Segment
(BS) is defined and the AIVT has been enabled. To
enable the Alternate Interrupt Vector Table, the Config-
uration bit, AIVTDIS in the FSEC register, must be
programmed and the AIVTEN bit must be set
(INTCON2<8> = 1). When the AIVT is enabled, all
interrupt and exception processes use the alternate
vectors instead of the default vectors. The AIVT begins
at the start of the last page of the Boot Segment,
defined by BSLIM<12:0>. The second half of the page
is no longer usable space. The Boot Segment must be
at least two pages to enable the AIVT.
The AIVT supports debugging by providing a means to
switch between an application and a support environ-
ment without requiring the interrupt vectors to be
reprogrammed. This feature also enables switching
between applications for evaluation of different
software algorithms at run time.
7.2 Reset Sequence
A device Reset is not a true exception because the
interrupt controller is not involved in the Reset process.
The dsPIC33CK256MP508 family devices clear their
registers in response to a Reset, which forces the PC
to zero. The device then begins program execution at
location, 0x000000. A GOTO instruction at the Reset
address can redirect program execution to the
appropriate start-up routine.
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a
comprehensive reference source. To com-
plement the information in this data sheet,
refer to “Interrupts” (www.microchip.com/
DS70000600) in the “dsPIC33/PIC24
Family Reference Manual”.
2: Some registers and associated bits
described in this section may not be
available on all devices.
Note: Although the Boot Segment must be
enabled in order to enable the AIVT,
application code does not need to be
present inside of the Boot Segment. The
AIVT (and IVT) will inherit the Boot
Segment code protection.
Note: Any unimplemented or unused vector
locations in the IVT should be pro-
grammed with the address of a default
interrupt handler routine that contains a
RESET instruction.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 100 2017-2018 Microchip Technology Inc.
FIGURE 7-1: dsPIC33CK256MP508 FAMILY INTERRUPT VECTOR TABLE
IVT
Decreasing Natural Order Priority
Reset – GOTO Instruction 0x000000
Reset – GOTO Address 0x000002
Oscillator Fail Trap Vector 0x000004
Address Error Trap Vector 0x000006
Generic Hard Trap Vector 0x000008
Stack Error Trap Vector 0x00000A
Math Error Trap Vector 0x00000C
Reserved 0x00000E
Generic Soft Trap Vector 0x000010
Reserved 0x000012
Interrupt Vector 0 0x000014
Interrupt Vector 1 0x000016
::
::
::
Interrupt Vector 52 0x00007C
Interrupt Vector 53 0x00007E
Interrupt Vector 54 0x000080
::
::
::
Interrupt Vector 116 0x0000FC
Interrupt Vector 117 0x0000FE
Interrupt Vector 118 0x000100
Interrupt Vector 119 0x000102
Interrupt Vector 120 0x000104
::
::
::
Interrupt Vector 244 0x0001FC
Interrupt Vector 245 0x0001FE
START OF CODE 0x000200
See Ta b l e 7 - 2 for
Interrupt Vector Details
Note: In Dual Partition modes, each partition has a dedicated Interrupt Vector Table.
2017-2018 Microchip Technology Inc. DS70005349E-page 101
dsPIC33CK256MP508 FAMILY
FIGURE 7-2: dsPIC33CK256MP508 ALTERNATE INTERRUPT VECTOR TABLE(2)
Note 1: The address depends on the size of the Boot Segment defined by BSLIM<12:0>:
[(BSLIM<12:0> – 1) x 0x800] + Offset.
2: In Dual Partition modes, each partition has a dedicated Alternate Interrupt Vector Table (if
enabled).
AIVT
Decreasing Natural Order Priority
Reserved BSLIM<12:0>(1) + 0x000000
Reserved BSLIM<12:0>(1) + 0x000002
Oscillator Fail Trap Vector BSLIM<12:0>(1) + 0x000004
Address Error Trap Vector BSLIM<12:0>(1) + 0x000006
Generic Hard Trap Vector BSLIM<12:0>(1) + 0x000008
Stack Error Trap Vector BSLIM<12:0>(1) + 0x00000A
Math Error Trap Vector BSLIM<12:0>(1) + 0x00000C
Reserved BSLIM<12:0>(1) + 0x00000E
Generic Soft Trap Vector BSLIM<12:0>(1) + 0x000010
Reserved BSLIM<12:0>(1) + 0x000012
Interrupt Vector 0 BSLIM<12:0>(1) + 0x000014
Interrupt Vector 1 BSLIM<12:0>(1) + 0x000016
::
::
::
Interrupt Vector 52 BSLIM<12:0>(1) + 0x00007C
Interrupt Vector 53 BSLIM<12:0>(1) + 0x00007E
Interrupt Vector 54 BSLIM<12:0>(1) + 0x000080
::
::
::
Interrupt Vector 116 BSLIM<12:0>(1) + 0x0000FC
Interrupt Vector 117 BSLIM<12:0>(1) + 0x0000FE
Interrupt Vector 118 BSLIM<12:0>(1) + 0x000100
Interrupt Vector 119 BSLIM<12:0>(1) + 0x000102
Interrupt Vector 120 BSLIM<12:0>(1) + 0x000104
::
::
::
Interrupt Vector 244 BSLIM<12:0>(1) + 0x0001FC
Interrupt Vector 245 BSLIM<12:0>(1) + 0x0001FE
See Tab le 7-2 for
Interrupt Vector Details
dsPIC33CK256MP508 FAMILY
DS70005349E-page 102 2017-2018 Microchip Technology Inc.
TABLE 7-1: TRAP VECTOR DETAILS
Trap Description MPLAB
®
XC16
Trap ISR Name Vector # IVT
Address
Trap Bit Location
Priority
Interrupt Flag Type Enable
Oscillator Failure _OscillatorFail 0 0x000004 INTCON1<1> ——15
Address Error _AddressError 1 0x000006 INTCON1<3> ——14
ECC Double-Bit Error _HardTrapError 2 0x000008 INTCON4<1> ——13
Software Generated Trap _HardTrapError 2 0x000008 INTCON4<0> — INTCON2<13> 13
Stack Error _StackError 3 0x00000A INTCON1<2> ——12
Overflow Accumulator A _MathError 4 0x00000C INTCON1<4> INTCON1<14> INTCON1<10> 11
Overflow Accumulator B _MathError 4 0x00000C INTCON1<4> INTCON1<13> INTCON1<9> 11
Catastrophic Overflow Accumulator A _MathError 4 0x00000C INTCON1<4> INTCON1<12> INTCON1<8> 11
Catastrophic Overflow Accumulator B _MathError 4 0x00000C INTCON1<4> INTCON1<11> INTCON1<8> 11
Shift Accumulator Error _MathError 4 0x00000C INTCON1<4> INTCON1<7> INTCON1<8> 11
Divide-by-Zero Error _MathError 4 0x00000C INTCON1<4> INTCON1<6> INTCON1<8> 11
Reserved Reserved 50x00000E — — — —
CAN Address Error _SoftTrapError 6 0x000010 INTCON3<9> ——9
NVM Address Error _SoftTrapError 6 0x000010 INTCON3<8> 9
DO
Stack Overflow _SoftTrapError 6 0x000010 INTCON3<4> ——9
APLL Loss of Lock _SoftTrapError 6 0x000010 INTCON3<0> ——9
Reserved Reserved 70x000012 — — — —
2017-2018 Microchip Technology Inc. DS70005349E-page 103
dsPIC33CK256MP508 FAMILY
TABLE 7-2: INTERRUPT VECTOR DETAILS
Interrupt Source MPLAB
®
XC16
ISR Name
Vector
#
IRQ
# IVT Address
Interrupt Bit Location
Flag Enable Priority
External Interrupt 0 _INT0Interrupt 8 0 0x000014 IFS0<0> IEC0<0> IPC0<2:0>
Timer1 _T1Interrupt 9 1 0x000016 IFS0<1> IEC0<1> IPC0<6:4>
Change Notice Interrupt A _CNAInterrupt 10 2 0x000018 IFS0<2> IEC0<2> IPC0<10:8>
Change Notice Interrupt B _CNBInterrupt 11 3 0x00001A IFS0<3> IEC0<3> IPC0<14:12>
DMA Channel 0 _DMA0Interrupt 12 4 0x00001C IFS0<4> IEC0<4> IPC1<2:0>
Reserved Reserved 13 50x00001E — — —
Input Capture/Output Compare 1 _CCP1Interrupt 14 6 0x000020 IFS0<6> IEC0<6> IPC1<10:8>
CCP1 Timer _CCT1Interrupt 15 7 0x000022 IFS0<7> IEC0<7> IPC1<14:12>
DMA Channel 1 _DMA1Interrupt 16 8 0x000024 IFS0<8> IEC0<8> IPC2<2:0>
SPI1 Receiver _SPI1RXInterrupt 17 9 0x000026 IFS0<9> IEC0<9> IPC2<6:4>
SPI1 Transmitter _SPI1TXInterrupt 18 10 0x000028 IFS0<10> IEC0<10> IPC2<10:8>
UART1 Receiver _U1RXInterrupt 19 11 0x00002A IFS0<11> IEC0<11> IPC2<14:12>
UART1 Transmitter _U1TXInterrupt 20 12 0x00002C IFS0<12> IEC0<12> IPC3<2:0>
ECC Single Bit Error _ECCSBEInterrupt 21 13 0x00002E IFS0<13> IEC0<13> IPC3<6:4>
NVM Write Complete _NVMInterrupt 22 14 0x000030 IFS0<14> IEC0<14> IPC3<10:8>
External Interrupt 1 _INT1Interrupt 23 15 0x000032 IFS0<15> IEC0<15> IPC3<14:12>
I2C1 Slave Event _SI2C1Interrupt 24 16 0x000034 IFS1<0> IEC1<0> IPC4<2:0>
I2C1 Master Event _MI2C1Interrupt 25 17 0x000036 IFS1<1> IEC1<1> IPC4<6:4>
DMA Channel 2 _DMA2Interrupt 26 18 0x000038 IFS1<2> IEC1<2> IPC4<10:8>
Change Notice Interrupt C
(2)
_CNCInterrupt 27 19 0x00003A IFS1<3> IEC1<3> IPC4<14:12>
External Interrupt 2 _INT2Interrupt 28 20 0x00003C IFS1<4> IEC1<4> IPC5<2:0>
DMA Channel 3 _DMA3Interrupt 29 21 0x00003E IFS1<5> IEC1<5> IPC5<6:4>
Reserved Reserved 30 22 0x000040 — — —
Input Capture/Output Compare 2 _CCP2Interrupt 31 23 0x000042 IFS1<7> IEC1<7> IPC5<14:12>
CCP2 Timer _CCT2Interrupt 32 24 0x000044 IFS1<8> IEC1<8> IPC6<2:0>
CAN1 Combined Error
(3)
_CAN1Interrupt 33 25 0x000046 IFS1<9> IEC1<9> IPC6<6:4>
External Interrupt 3 _INT3Interrupt 34 26 0x000048 IFS1<10> IEC1<10> IPC6<10:8>
UART2 Receiver _U2RXInterrupt 35 27 0x00004A IFS1<11> IEC1<11> IPC6<14:12>
UART2 Transmitter _U2TXInterrupt 36 28 0x00004C IFS1<12> IEC1<12> IPC7<2:0>
SPI2 Receiver _SPI2RXInterrupt 37 29 0x00004E IFS1<13> IEC1<13> IPC7<6:4>
SPI2 Transmitter _SPI2TXInterrupt 38 30 0x000050 IFS1<14> IEC1<14> IPC7<10:8>
CAN1 RX Data Ready
(3)
_C1RXInterrupt 39 31 0x000052 IFS1<15> IEC1<15> IPC7<14:12>
Reserved Reserved 40-42 32-34 0x000054-0x000058 — — —
Input Capture/Output Compare 3 _CCP3Interrupt 43 35 0x00005A IFS2<3> IEC2<3> IPC8<14:12>
CCP3 Timer _CCT3Interrupt 44 36 0x00005C IFS2<4> IEC2<4> IPC9<2:0>
I2C2 Slave Event _SI2C2Interrupt 45 37 0x00005E IFS2<5> IEC2<5> IPC9<6:4>
I2C2 Master Event _MI2C2Interrupt 46 38 0x000060 IFS2<6> IEC2<6> IPC9<10:8>
Reserved Reserved 47 39 0x000062 — — —
Input Capture/Output Compare 4 _CCP4Interrupt 48 40 0x000064 IFS2<8> IEC2<8> IPC10<2:0>
CCP4 Timer _CCT4Interrupt 49 41 0x000066 IFS2<9> IEC2<9> IPC10<6:4>
Reserved Reserved 50 42 0x000068 — — —
Note 1:
Availability dependent on number of supported ADC channels. Refer to Table 1 and Ta b le 2 for ADC
channel availability on package variants.
2:
Availability dependent on supported I/O ports. Refer to Ta b l e 8 - 1 for availability on package variants.
3:
Availability dependent on supported peripherals, refer to Ta b l e 1 and Table 2.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 104 2017-2018 Microchip Technology Inc.
Input Capture/Output Compare 5 _CCP5Interrupt 51 43 0x00006A IFS2<11> IEC2<11> IPC10<14:12>
CCP5 Timer _CCT5Interrupt 52 44 0x00006C IFS2<12> IEC2<12> IPC11<2:0>
Deadman Timer _DMTInterrupt 53 45 0x00006E IFS2<13> IEC2<13> IPC11<6:4>
Input Capture/Output Compare 6 _CCP6Interrupt 54 46 0x000070 IFS2<14> IEC2<14> IPC11<10:8>
CCP6 Timer _CCT6Interrupt 55 47 0x000072 IFS2<15> IEC2<15> IPC11<14:12>
QEI Position Counter Compare _QEI1Interrupt 56 48 0x000074 IFS3<0> IEC3<0> IPC12<2:0>
UART1 Error _U1EInterrupt 57 49 0x000076 IFS3<1> IEC3<1> IPC12<6:4>
UART2 Error _U2EInterrupt 58 50 0x000078 IFS3<2> IEC3<2> IPC12<10:8>
CRC Generator _CRCInterrupt 59 51 0x00007A IFS3<3> IEC3<3> IPC12<14:12>
CAN1 TX Data Request
(3)
_C1TXInterrupt 60 52 0x00007C IFS3<4> IEC3<4> IPC13<2:0>
Reserved Reserved 61 53 0x00007E — — —
QEI Position Counter Compare _QEI2Interrupt 62 54 0x000080 IFS3<6> IEC3<6> IPC13<10:8>
Reserved Reserved 63 55 0x000082 — — —
UART3 Error _U3EInterrupt 64 56 0x000084 IFS3<8> IEC3<8> IPC14<2:0>
UART3 Receiver _U3RXInterrupt 65 57 0x000086 IFS3<9> IEC3<9> IPC14<6:4>
UART3 Transmitter _U3TXInterrupt 66 58 0x000088 IFS3<10> IEC3<10> IPC14<10:8>
SPI3 Receiver _SPI3RXInterrupt 67 59 0x00008A IFS3<11> IEC3<11> IPC14<14:12>
SPI3 Transmitter _SPI3TXInterrupt 68 60 0x00008C IFS3<12> IEC3<12> IPC15<2:0>
In-Circuit Debugger _ICDInterrupt 69 61 0x00008E IFS3<13> IEC3<13> IPC15<6:4>
JTAG Programming _JTAGInterrupt 70 62 0x000090 IFS3<14> IEC3<14> IPC15<10:8>
PTG Step _PTGSTEPInterrupt 71 63 0x000092 IFS3<15> IEC3<15> IPC15<14:12>
I2C1 Bus Collision _I2C1BCInterrupt 72 64 0x000094 IFS4<0> IEC4<0> IPC16<2:0>
I2C2 Bus Collision _I2C2BCInterrupt 73 65 0x000096 IFS4<1> IEC4<1> IPC16<6:4>
Reserved Reserved 74 66 0x000098 — — —
PWM Generator 1 _PWM1Interrupt 75 67 0x00009A IFS4<3> IEC4<3> IPC16<14:12>
PWM Generator 2 _PWM2Interrupt 76 68 0x00009C IFS4<4> IEC4<4> IPC17<2:0>
PWM Generator 3 _PWM3Interrupt 77 69 0x00009E IFS4<5> IEC4<5> IPC17<6:4>
PWM Generator 4 _PWM4Interrupt 78 70 0x0000A0 IFS4<6> IEC4<6> IPC17<10:8>
PWM Generator 5 _PWM5Interrupt 79 71 0x0000A2 IFS4<7> IEC4<7> IPC17<14:12>
PWM Generator 6 _PWM6Interrupt 80 72 0x0000A4 IFS4<8> IEC4<8> IPC18<2:0>
PWM Generator 7 _PWM7Interrupt 81 73 0x0000A6 IFS4<9> IEC4<9> IPC18<6:4>
PWM Generator 8 _PWM8Interrupt 82 74 0x0000A8 IFS4<10> IEC4<10> IPC18<10:8>
Change Notice D
(2)
_CNDInterrupt 83 75 0x0000AA IFS4<11> IEC4<11> IPC18<14:12>
Change Notice E
(2)
_CNEInterrupt 84 76 0x0000AC IFS4<12> IEC4<12> IPC19<2:0>
Comparator 1 _CMP1Interrupt 85 77 0x0000AE IFS4<13> IEC4<13> IPC19<6:4>
Comparator 2 _CMP2Interrupt 86 78 0x0000B0 IFS4<14> IEC4<14> IPC19<10:8>
Comparator 3 _CMP3Interrupt 87 79 0x0000B2 IFS4<15> IEC4<15> IPC19<14:12>
Reserved Reserved 88 80 0x0000B4 — — —
PTG Watchdog Timer Time-out _PTGWDTInterrupt 89 81 0x0000B6 IFS5<1> IEC5<1> IPC20<6:4>
PTG Trigger 0 _PTG0Interrupt 90 82 0x0000B8 IFS5<2> IEC5<2> IPC20<10:8>
PTG Trigger 1 _PTG1Interrupt 91 83 0x0000BA IFS5<3> IEC5<3> IPC20<14:12>
PTG Trigger 2 _PTG2Interrupt 92 84 0x0000BC IFS5<4> IEC5<4> IPC21<2:0>
PTG Trigger 3 _PTG3Interrupt 93 85 0x0000BE IFS5<5> IEC5<6> IPC21<6:4>
TABLE 7-2: INTERRUPT VECTOR DETAILS (CONTINUED)
Interrupt Source MPLAB
®
XC16
ISR Name
Vector
#
IRQ
# IVT Address
Interrupt Bit Location
Flag Enable Priority
Note 1:
Availability dependent on number of supported ADC channels. Refer to Table 1 and Ta b le 2 for ADC
channel availability on package variants.
2:
Availability dependent on supported I/O ports. Refer to Ta b l e 8 - 1 for availability on package variants.
3:
Availability dependent on supported peripherals, refer to Ta b l e 1 and Table 2.
2017-2018 Microchip Technology Inc. DS70005349E-page 105
dsPIC33CK256MP508 FAMILY
SENT1 TX/RX _SENT1Interrupt 94 86 0x0000C0 IFS5<6> IEC5<6> IPC21<10:8>
SENT1 Error _SENT1EInterrupt 95 87 0x0000C2 IFS5<7> IEC5<7> IPC21<14:12>
SENT2 TX/RX _SENT2Interrupt 96 88 0x0000C4 IFS5<8> IEC5<8> IPC22<2:0>
SENT2 Error _SENT2EInterrupt 97 89 0x0000C6 IFS5<9> IEC5<9> IPC22<6:4>
ADC Global Interrupt _ADCInterrupt 98 90 0x0000C8 IFS5<10> IEC5<10> IPC22<10:8>
ADC AN0 Interrupt _ADCAN0Interrupt 99 91 0x0000CA IFS5<11> IEC5<11> IPC22<14:12>
ADC AN1 Interrupt _ADCAN1Interrupt 100 92 0x0000CC IFS5<12> IEC5<12> IPC23<2:0>
ADC AN2 Interrupt _ADCAN2Interrupt 101 93 0x0000CE IFS5<13> IEC5<13> IPC23<6:4>
ADC AN3 Interrupt _ADCAN3Interrupt 102 94 0x0000D0 IFS5<14> IEC5<14> IPC23<10:8>
ADC AN4 Interrupt _ADCAN4Interrupt 103 95 0x0000D2 IFS5<15> IEC5<15> IPC23<14:12>
ADC AN5 Interrupt _ADCAN5Interrupt 104 96 0x0000D4 IFS6<0> IEC6<0> IPC24<2:0>
ADC AN6 Interrupt _ADCAN6Interrupt 105 97 0x0000D6 IFS6<1> IEC6<1> IPC24<6:4>
ADC AN7 Interrupt _ADCAN7Interrupt 106 98 0x0000D8 IFS6<2> IEC6<2> IPC24<10:8>
ADC AN8 Interrupt _ADCAN8Interrupt 107 99 0x0000DA IFS6<3> IEC6<3> IPC24<14:12>
ADC AN9 Interrupt _ADCAN9Interrupt 108 100 0x0000DC IFS6<4> IEC6<4> IPC25<2:0>
ADC AN10 Interrupt _ADCAN10Interrupt 109 101 0x0000DE IFS6<5> IEC6<5> IPC25<6:4>
ADC AN11 Interrupt _ADCAN11Interrupt 110 102 0x0000E0 IFS6<6> IEC6<6> IPC25<10:8>
ADC AN12 Interrupt
(1)
_ADCAN12Interrupt 111 103 0x0000E2 IFS6<7> IEC6<7> IPC25<14:12>
ADC AN13 Interrupt
(1)
_ADCAN13Interrupt 112 104 0x0000E4 IFS6<8> IEC6<8> IPC26<2:0>
ADC AN14 Interrupt
(1)
_ADCAN14Interrupt 113 105 0x0000E6 IFS6<9> IEC6<9> IPC26<6:4>
ADC AN15 Interrupt
(1)
_ADCAN15Interrupt 114 106 0x0000E8 IFS6<10> IEC6<10> IPC26<10:8>
ADC AN16 Interrupt
(1)
_ADCAN16Interrupt 115 107 0x0000EA IFS6<11> IEC6<11> IPC26<14:12>
ADC AN17 Interrupt
(1)
_ADCAN17Interrupt 116 108 0x0000EC IFS6<12> IEC6<12> IPC27<2:0>
ADC AN18 Interrupt
(1)
_ADCAN18Interrupt 117 109 0x0000EE IFS6<13> IEC6<13> IPC27<6:4>
ADC AN19 Interrupt
(1)
_ADCAN19Interrupt 118 110 0x0000F0 IFS6<14> IEC6<14> IPC27<10:8>
ADC AN20 Interrupt
(1)
_ADCAN20Interrupt 119 111 0x0000F2 IFS6<15> IEC6<15> IPC27<14:12>
ADC AN21 Interrupt
(1)
_ADCAN21Interrupt 120 112 0x0000F4 IFS7<0> IEC7<0> IPC28<2:0>
ADC AN22 Interrupt
(1)
_ADCAN22Interrupt 121 113 0x0000F6 IFS7<1> IEC7<1> IPC28<6:4>
ADC AN23 Interrupt
(1)
_ADCAN23Interrupt 122 114 0x0000F8 IFS7<2> IEC7<2> IPC28<10:8>
ADC Fault _ADFLTInterrupt 123 115 0x0000FA IFS7<3> IEC7<3> IPC28<14:12>
ADC Digital Comparator 0 _ADCMP0Interrupt 124 116 0x0000FC IFS7<4> IEC7<4> IPC29<2:0>
ADC Digital Comparator 1 _ADCMP1Interrupt 125 117 0x0000FE IFS7<5> IEC7<5> IPC29<6:4>
ADC Digital Comparator 2 _ADCMP2Interrupt 126 118 0x000100 IFS7<6> IEC7<6> IPC29<10:8>
ADC Digital Comparator 3 _ADCMP3Interrupt 127 119 0x000102 IFS7<7> IEC7<7> IPC29<14:12>
ADC Oversample Filter 0 _ADFLTR0Interrupt 128 120 0x000104 IFS7<8> IEC7<8> IPC30<2:0>
ADC Oversample Filter 1 _ADFLTR1Interrupt 129 121 0x000106 IFS7<9> IEC7<9> IPC30<6:4>
ADC Oversample Filter 2 _ADFLTR2Interrupt 130 122 0x000108 IFS7<10> IEC7<10> IPC30<10:8>
ADC Oversample Filter 3 _ADFLTR3Interrupt 131 123 0x00010A IFS7<11> IEC7<11> IPC30<14:12>
CLC1 Positive Edge _CLC1PInterrupt 132 124 0x00010C IFS7<12> IEC7<12> IPC31<2:0>
CLC2 Positive Edge _CLC2PInterrupt 133 125 0x00010E IFS7<13> IEC7<13> IPC31<6:4>
SPI1 Error _SPI1GInterrupt 134 126 0x000110 IFS7<14> IEC7<14> IPC31<10:8>
SPI2 Error _SPI2GInterrupt 135 127 0x000112 IFS7<15> IEC7<15> IPC31<14:12>
SPI3 Error _SPI3GInterrupt 136 128 0x000114 IFS8<0> IEC8<0> IPC32<2:0>
TABLE 7-2: INTERRUPT VECTOR DETAILS (CONTINUED)
Interrupt Source MPLAB
®
XC16
ISR Name
Vector
#
IRQ
# IVT Address
Interrupt Bit Location
Flag Enable Priority
Note 1:
Availability dependent on number of supported ADC channels. Refer to Table 1 and Ta b le 2 for ADC
channel availability on package variants.
2:
Availability dependent on supported I/O ports. Refer to Ta b l e 8 - 1 for availability on package variants.
3:
Availability dependent on supported peripherals, refer to Ta b l e 1 and Table 2.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 106 2017-2018 Microchip Technology Inc.
Reserved Reserved 137-149 129-141 0x000116-0x00012E — — —
I2C3 Slave Event _SI2C3Interrupt 150 142 0x000130 IFS8<14> IEC8<14> IPC35<10:8>
I2C3 Master Event _MI2C3Interrupt 151 143 0x000132 IFS8<15> IEC8<15> IPC35<14:12>
I2C3 Bus Collision _I2C3BCInterrupt 152 144 0x000134 IFS9<0> IEC9<0> IPC36<2:0>
Reserved Reserved 153-156 145-148 0x000136-0x00013C — — —
Input Capture/Output Compare 7 _CCP7Interrupt 157 149 0x00013E IFS9<5> IEC9<5> IPC37<6:4>
CCP7 Timer _CCT7Interrupt 158 150 0x000140 IFS9<6> IEC9<6> IPC37<10:8>
Reserved Reserved 159 151 0x000142 — — —
Input Capture/Output Compare 8 _CCP8Interrupt 160 152 0x000144 IFS9<8> IEC9<8> IPC38<2:0>
CCP8 Timer _CCT8Interrupt 161 153 0x000146 IFS9<9> IEC9<9> IPC38<6:4>
Reserved Reserved 162-175 154-167 0x000148-0x000162 — — —
ADC FIFO Ready _ADFIFOInterrupt 176 168 0x000164 IFS10<8> IEC10<8> IPC42<2:0>
PWM Event A _PEVTAInterrupt 177 169 0x000166 IFS10<9> IEC10<9> IPC42<6:4>
PWM Event B _PEVTBInterrupt 178 170 0x000168 IFS10<10> IEC10<10> IPC42<10:8>
PWM Event C _PEVTCInterrupt 179 171 0x00016A IFS10<11> IEC10<11> IPC42<14:12>
PWM Event D _PEVTDInterrupt 180 172 0x00016C IFS10<12> IEC10<12> IPC43<2:0>
PWM Event E _PEVTEInterrupt 181 173 0x00016E IFS10<13> IEC10<13> IPC43<6:4>
PWM Event F _PEVTFInterrupt 182 174 0x000170 IFS10<14> IEC10<14> IPC43<10:8>
CLC3 Positive Edge _CLC3PInterrupt 183 175 0x000172 IFS10<15> IEC10<15> IPC43<14:12>
CLC4 Positive Edge _CLC4PInterrupt 184 176 0x000174 IFS11<0> IEC11<0> IPC44<2:0>
CLC1 Negative Edge _CLC1NInterrupt 185 177 0x000176 IFS11<1> IEC11<1> IPC44<6:4>
CLC2 Negative Edge _CLC2NInterrupt 186 178 0x000178 IFS11<2> IEC11<2> IPC44<10:8>
CLC3 Negative Edge _CLC3NInterrupt 187 179 0x00017A IFS11<3> IEC11<3> IPC44<14:>12>
CLC4 Negative Edge _CLC4NInterrupt 188 180 0x00017C IFS11<4> IEC11<4> IPC45<2:0>
Input Capture/Output Compare 9 _CCP9Interrupt 189 181 0x00017E IFS11<5> IEC11<5> IPC45<6:4>
CCP9 Timer _CCT9Interrupt 190 182 0x000180 IFS11<6> IEC11<6> IPC45<10:8>
Reserved Reserved 191-196 183-188 0x00182-0x0018C — — —
UART1 Event _U1EVTInterrupt 197 189 0x00018E IFS11<13> IF2C11<13> IPC47<6:4>
UART2 Event _U2EVTInterrupt 198 190 0x000190 IFS11<14> IF2C11<14> IPC47<12:8>
UART3 Event _U3EVTInterrupt 199 191 0x000192 IFS11<15> IF2C11<15> IPC47<14:12>
AN24 Done _AD1AN24Interrupt 200 192 0x000194 IFS12<0> IEC12<0> IPC48<2:0>
AN25 Done _AD1AN25Interrupt 201 193 0x000196 IFS12<1> IEC12<1> IPC48<6:4>
PMP Event
(3)
_PMPInterrupt 202 194 0x000198 IFS12<2> IEC12<2> IPC48<10:8>
PMP Error Event
(3)
_PMPEInterrupt 203 195 0x00019A IFS12<3> IEC12<3> IPC48<14:12>
TABLE 7-2: INTERRUPT VECTOR DETAILS (CONTINUED)
Interrupt Source MPLAB
®
XC16
ISR Name
Vector
#
IRQ
# IVT Address
Interrupt Bit Location
Flag Enable Priority
Note 1:
Availability dependent on number of supported ADC channels. Refer to Table 1 and Ta b le 2 for ADC
channel availability on package variants.
2:
Availability dependent on supported I/O ports. Refer to Ta b l e 8 - 1 for availability on package variants.
3:
Availability dependent on supported peripherals, refer to Ta b l e 1 and Table 2.
2017-2018 Microchip Technology Inc. DS70005349E-page 107
dsPIC33CK256MP508 FAMILY
TABLE 7-3: INTERRUPT FLAG REGISTERS
Register Address Bit 15 Bit14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
IFS0 800h INT1IF NVMIF ECCSBEIF U1TXIF U1RXIF SPI1TXIF SPI1RXIF DMA1IF CCT1IF CCP1IF — DMA0IF CNBIF CNAIF T1IF INT0IF
IFS1 802h C1RXIF SPI2TXIF SPI2RXIF U2TXIF U2RXIF INT3IF C1IF CCT2IF CCP2IF — DMA3IF INT2IF CNCIF DMA2IF MI2C1IF SI2C1IF
IFS2 804h CCT6IF CCP6IF DMTIF CCT5IF CCP5IF — CCT4IF CCP4IF — MI2C2IF SI2C2IF CCT3IF CCP3IF — — —
IFS3 806h PTGSTEPIF JTAGIF ICDIF SPI3TXIF SPI3RXIF U3TXIF U3RXIF U3EIF —QEI2IF— C1TXIF CRCIF U2EIF U1EIF QEI1IF
IFS4 808h CMP3IF CMP2IF CMP1IF CNEIF CNDIF PWM8IF PWM7IF PWM6IF PWM5IF PWM4IF PWM3IF PWM2IF PWM1IF — I2C2BCIF I2C1BCIF
IFS5 80Ah ADCAN4IF ADCAN3IF ADCAN2IF ADCAN1IF ADCAN0IF ADCIF SENT2EIF SENT2IF SENT1EIF SENT1IF PTG3IF PTG2IF PTG1IF PTG0IF PTGWDTIF —
IFS6 80Ch ADCAN20IF ADCAN19IF ADCAN18IF ADCAN17IF ADCAN16IF ADCAN15IF ADCAN14IF ADCAN13IF ADCAN12IF ADCAN11IF ADCAN10IF ADCAN9IF ADCAN8IF ADCAN7IF ADCAN6IF ADCAN5IF
IFS7 80Eh SPI2GIF SPI1GIF CLC2PIF CLC1PIF ADFLTR3IF ADFLTR2IF ADFLTR1IF ADFLTR0IF ADCMP3IF ADCMP2IF ADCMP1IF ADCMP0IF ADFLTIF ADCAN23IF ADCAN22IF ADCAN21IF
IFS8 810h MI2C3IF SI2C3IF — — — — — — — — — — — — —SPI3GIF
IFS9 812h — — — — — — CCT8IF CCP8IF — CCT7IF CCP7IF — — — —I2C3BCIF
IFS10 814h CLC3PIF PEVTFIF PEVTEIF PEVTDIF PEVTCIF PEVTBIF PEVTAIF ADFIFOIF — — — — — — — —
IFS11 816h U3EVTIF U2EVTIF U1EVTIF — — — — — — CCT9IF CCP9IF CLC4NIF CLC3NIF CLC2NIF CLC1NIF CLC4PIF
IFS12 818h — — — — — — — — — — — — PMPEIF PMPIF ADCAN25IF ADCAN24IF
Legend:
— = Unimplemented.
TABLE 7-4: INTERRUPT ENABLE REGISTERS
Register Address Bit 15 Bit14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
IEC0 820h INT1IE NVMIE ECCSBEIE U1TXIE U1RXIE SPI1TXIE SPI1RXIE DMA1IE CCT1IE CCP1IE — DMA0IE CNBIE CNAIE T1IE INT0IE
IEC1 822h C1RXIE SPI2TXIE SPI2RXIE U2TXIE U2RXIE INT3IE C1IE CCT2IE CCP2IE — DMA3IE INT2IE CNCIE DMA2IE MI2C1IE SI2C1IE
IEC2 824h CCT6IE CCP6IE DMTIE CCT5IE CCP5IE — CCT4IE CCP4IE — MI2C2IE SI2C2IE CCT3IE CCP3IE — — —
IEC3 826h PTGSTEPIE JTAGIE ICDIE SPI3TXIE SPI3RXIE U3TXIE U3RXIE U3EIE —QEI2IE — C1TXIE CRCIE U2EIE U1EIE QEI1IE
IEC4 828h CMP3IE CMP2IE CMP1IE CNEIE CNDIE PWM8IE PWM7IE PWM6IE PWM5IE PWM4IE PWM3IE PWM2IE PWM1IE — I2C2BCIE I2C1BCIE
IEC5 82Ah ADCAN4IE ADCAN3IE ADCAN2IE ADCAN1IE ADCAN0IE ADCIE SENT2EIE SENT2IE SENT1EIE SENT1IE PTG3IE PTG2IE PTG1IE PTG0IE PTGWDTIE —
IEC6 82Ch ADCAN20IE ADCAN19IE ADCAN18IE ADCAN17IE ADCAN16IE ADCAN15IE ADCAN14IE ADCAN13IE ADCAN12IE ADCAN11IE ADCAN10IE ADCAN9IE ADCAN8IE ADCAN7IE ADCAN6IE ADCAN5IE
IEC7 82Eh SPI2GIE SPI1GIE CLC2PIE CLC1PIE ADFLTR3IE ADFLTR2IE ADFLTR1IE ADFLTR0IE ADCMP3IE ADCMP2IE ADCMP1IE ADCMP0IE ADFLTIE ADCAN23IE ADCAN22IE ADCAN21IE
IEC8 830h MI2C3IE SI2C3IE — — — — — — — — — — — — — SPI3GIE
IEC9 832h — — — — — — CCT8IE CCP8IE — CCT7IE CCP7IE — — — — I2C3BCIE
IEC10 834h CLC3PIE PEVTFIE PEVTEIE PEVTDIE PEVTCIE PEVTBIE PEVTAIE ADFIFOIE — — — — — — — —
IEC11 836h U3EVTIE U2EVTIE U1EVTIE — — — — — — CCT9IE CCP9IE CLC4NIE CLC3NIE CLC2NIE CLC1NIE CLC4PIE
IEC12 838h — — — — — — — — — — — — PMPEIE PMPIE ADCAN25IE ADCAN24IE
Legend:
— = Unimplemented.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 108 2017-2018 Microchip Technology Inc.
TABLE 7-5: INTERRUPT PRIORITY REGISTERS
Register Address Bit 15 Bit14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
IPC0 840h — CNBIP2 CNBIP1 CNBIP0 — CNAIP2 CNAIP1 CNAIP0 — T1IP2 T1IP1 T1IP0 — INT0IP2 INT0IP1 INT0IP0
IPC1 842h — CCT1IP2 CCT1IP1 CCT1IP0 — CCP1IP2 CCP1IP1 CCP1IP0 — — — — — DMA0IP2 DMA0IP1 DMA0IP0
IPC2 844h — U1RXIP2 U1RXIP1 U1RXIP0 — SPI1TXIP2 SPI1TXIP1 SPI1TXIP0 — SPI1RXIP2 SPI1RXIP1 SPI1RXIP0 — DMA1IP2 DMA1IP1 DMA1IP0
IPC3 846h — INT1IP2 INT1IP1 INT1IP0 — NVMIP2 NVMIP1 NVMIP0 — ECCSBEIP2 ECCSBEIP1 ECCSBEIP0 — U1TXIP2 U1TXIP1 U1TXIP0
IPC4 848h — CNCIP2 CNCIP1 CNCIP0 — DMA2IP2 DMA2IP1 DMA2IP0 — MI2C1IP2 MI2C1IP1 MI2C1IP0 — SI2C1IP2 SI2C1IP1 SI2C1IP0
IPC5 84Ah — CCP2IP2 CCP2IP1 CCP2IP0 — — — — — DMA3IP2 DMA3IP1 DMA3IP20 — INT2IP2 INT2IP1 INT2IP0
IPC6 84Ch — U2RXIP2 U2RXIP1 U2RXIP0 — INT3IP2 INT3IP1 INT3IP0 — C1IP2 C1IP1 C1IP0 — CCT2IP2 CCT2IP1 CCT2IP0
IPC7 84Eh — C1RXIP2 C1RXIP1 C1RXIP0 — SPI2TXIP2 SPI2TXIP1 SPI2TXIP0 — SPI2RXIP2 SPI2RXIP1 SPI2RXIP0 — U2TXIP2 U2TXIP1 U2TXIP0
IPC8 850h — CCP3IP2 CCP3IP1 CCP3IP0 — — — — — — — — — — — —
IPC9 852h — — — — — MI2C2IP2 MI2C2IP1 MI2C2IP0 — SI2C2IP2 SI2C2IP1 SI2C2IP0 — CCT3IP2 CCT3IP1 CCT3IP0
IPC10 854h — CCP5IP2 CCP5IP1 CCP5IP0 — — — — — CCT4IP2 CCT4IP1 CCT4IP0 — CCP4IP2 CCP4IP1 CCP4IP0
IPC11 856h — CCT6IP2 CCT6IP1 CCT6IP0 — CCP6IP2 CCP6IP1 CCP6IP0 — DMTIP2 DMTIP1 DMTIP0 — CCT5IP2 CCT5IP1 CCT5IP0
IPC12 858h — CRCIP2 CRCIP1 CRCIP0 — U2EIP2 U2EIP1 U2EIP0 — U1EIP2 U1EIP1 U1EIP0 — QEI1IP2 QEI1IP1 QEI1IP0
IPC13 85Ah — — — — — QEI2IP2 QEI2IP1 QEI2IP0 — — — — — C1TXIP2 C1TXIP1 C1TXIP0
IPC14 85Ch — SPI3RXIP2 SPI3RXIP1 SPI3RXIP0 — U3TXIP2 U3TXIP1 U3TXIP1 — U3RXIP2 U3RXIP1 U3RXIP0 — U3EIP2 U3EIP1 U3EIP0
IPC15 85Eh — PTGSTEPIP2 PTGSTEPIP1 PTGSTEPIP0 — JTAGIP2 JTAGIP1 JTAGIP0 — ICDIP2 ICDIP1 ICDIP0 — SPI3TXIP2 SPI3TXIP1 SPI3TXIP0
IPC16 860h — PWM1IP2 PWM1IP1 PWM1IP0 — — — — — I2C2BCIP2 I2C2BCIP1 I2C2BCIP0 — I2C1BCIP2 I2C1BCIP1 I2C1BCIP0
IPC17 862h — PWM5IP2 PWM5IP1 PWM5IP0 — PWM4IP2 PWM4IP1 PWM4IP0 — PWM3IP2 PWM3IP1 PWM3IP0 — PWM2IP2 PWM2IP1 PWM2IP0
IPC18 864h — CNDIP2 CNDIP1 CNDIP0 — PWM8IP2 PWM8IP1 PWM8IP0 — PWM7IP2 PWM7IP1 PWM7IP0 — PWM6IP2 PWM6IP1 PWM6IP0
IPC19 866h — CMP3IP2 CMP3IP1 CMP3IP0 — CMP2IP2 CMP2IP1 CMP2IP0 — CMP1IP2 CMP1IP1 CMP1IP0 — CNEIP2 CNEIP1 CNEIP0
IPC20 868h — PTG1IP2 PTG1IP1 PTG1IP0 — PTG0IP2 PTG0IP1 PTG0IP0 — PTGWDTIP2 PTGWDTIP1 PTGWDTIP0 — — — —
IPC21 86Ah — SENT1EIP2 SENT1EIP1 SENT1EIP0 — SENT1IP2 SENT1IP1 SENT1IP0 — PTG3IP2 PTG3IP1 PTG3IP0 — PTG2IP2 PTG2IP1 PTG2IP0
IPC22 86Ch — ADCAN0IP2 ADCAN0IP1 ADCAN0IP0 — ADCIP2 ADCIP1 ADCIP0 — SENT2EIP2 SENT2EIP1 SENT2EIP0 — SENT2IP2 SENT2IP1 SENT2IP0
IPC23 86Eh — ADCAN4IP2 ADCAN4IP1 ADCAN4IP0 — ADCAN3IP2 ADCAN3IP1 ADCAN3IP0 — ADCAN2IP2 ADCAN2IP1 ADCAN2IP0 — ADCAN1IP2 ADCAN1IP1 ADCAN1IP0
IPC24 870h — ADCAN8IP2 ADCAN8IP1 ADCAN8IP0 — ADCAN7IP2 ADCAN7IP1 ADCAN7IP0 — ADCAN6IP2 ADCAN6IP1 ADCAN6IP0 — ADCAN5IP2 ADCAN5IP1 ADCAN5IP0
IPC25 872h — ADCAN12IP2 ADCAN12IP1 ADCAN12IP0 — ADCAN11IP2 ADCAN11IP1 ADCAN11IP0 — ADCAN10IP2 ADCAN10IP1 ADCAN10IP0 — ADCAN9IP2 ADCAN9IP1 ADCAN9IP0
IPC26 874h — ADCAN16IP2 ADCAN16IP2 ADCAN16IP2 — ADCAN15IP2 ADCAN15IP1 ADCAN15IP0 — ADCAN14IP2 ADCAN14IP1 ADCAN14IP0 — ADCAN13IP2 ADCAN13IP1 ADCAN13IP0
IPC27 876h — ADCAN20IP2 ADCAN20IP1 ADCAN20IP0 — ADCAN19IP2 ADCAN19IP1 ADCAN19IP0 — ADCAN18IP2 ADCAN18IP1 ADCAN18IP0 — ADCAN17IP2 ADCAN17IP1 ADCAN17IP0
IPC28 878h — ADFLTIP2 ADFLTIP1 ADFLTIP0 — ADCAN23IP2 ADCAN23IP1 ADCAN22IP0 — ADCAN22IP2 ADCAN22IP1 ADCAN22IP0 — ADCAN21IP2 ADCAN21IP1 ADCAN21IP0
IPC29 87Ah — ADCMP3IP2 ADCMP3IP1 ADCMP3IP0 — ADCMP2IP2 ADCMP2IP1 ADCMP2IP0 — ADCMP1IP2 ADCMP1IP1 ADCMP1IP0 — ADCMP0IP2 ADCMP0IP1 ADCMP0IP0
IPC30 87Ch — ADFLTR3IP2 ADFLTR3IP1 ADFLTR3IP0 — ADFLTR2IP2 ADFLTR2IP1 ADFLTR2IP0 — ADFLTR1IP2 ADFLTR1IP1 ADFLTR1IP0 — ADFLTR0IP2 ADFLTR0IP1 ADFLTR0IP0
IPC31 87Eh — SPI2GIP0 SPI2GIP1 SPI2GIP0 — SPI1GIP2 SPI1GIP1 SPI1GIP0 — CLC2PIP2 CLC2PIP1 CLC2PIP0 — CLC1PIP2 CLC1PIP1 CLC1PIP0
IPC32 880h — — — — — — — — — — — — — SPI3GIP2 SPI3GIP1 SPI3GIP0
IPC33 882h — — — — — — — — — — — — — — — —
IPC34 884h — — — — — — — — — — — — — — — —
Legend:
— = Unimplemented.
2017-2018 Microchip Technology Inc. DS70005349E-page 109
dsPIC33CK256MP508 FAMILY
IPC35 886h — MI2C3IP2 MI2C3IP1 MI2C3IP1 — SI2C3IP2 SI2C3IP1 SI2C3IP0 — — — — — — — —
IPC36 888h — — — — — — — — — — — — — I2C3BCIP2 I2C3BCIP1 I2C3BCIP0
IPC37 88Ah — — — — — CCT7IP2 CCT7IP1 CCT7IP0 — CCP7IP2 CCP7IP1 CCP7IP0 — — — —
IPC38 88Ch — — — — — — — — — CCT8IP2 CCT8IP1 CCT8IP0 — CCP8IP2 CCP8IP1 CCP8IP0
IPC39 88Eh — — — — — — — — —
— — —
— — — —
IPC40 890h — — — — — — — — — — — — — — — —
IPC41 892h — — — — — — — — — — — — — — — —
IPC42 894h — PEVTCIP2 PEVTCIP1 PEVTCIP0 — PEVTBIP2 PEVTBIP1 PEVTBIP0 — PEVTAIP2 PEVTAIP1 PEVTAIP0 — ADFIFOIP2 ADFIFOIP1 ADFIFOIP0
IPC43 896h — CLC3PIP2 CLC3PIP1 CLC3PIP0 — PEVTFIP2 PEVTFIP1 PEVTFIP0 — PEVTEIP2 PEVTEIP1 PEVTEIP0 — PEVTDIP2 PEVTDIP1 PEVTDIP0
IPC44 898h — CLC3NIP2 CLC3NIP1 CLC3NIP0 — CLC2NIP2 CLC2NIP1 CLC2NIP0 — CLC1NIP2 CLC1NIP1 CLC1NIP0 — CLC4PIP2 CLC4PIP1 CLC4PIP0
IPC45 89Ah — — — — — CCT9IP2 CCT9IP1 CCT9IP0 — CCP9IP2 CCP9IP1 CCP9IP0 — CLC4NIP2 CLC4NIP1 CLC4NIP0
IPC46 89Ch — — — — — — — — — — — — — — — —
IPC47 89Eh — U3EVTIP2 U3EVTIP1 U3EVTIP0 — U2EVTIP2 U2EVTIP1 U2EVTIP0 — U1EVTIP2 U1EVTIP1 U1EVTIP0 — — — —
IPC48 900h — PMPEIP2 PMPEIP1 PMPEIP0 PMPIP2 PMPIP1 PMPIP0 ADCAN25IP2 ADCAN25IP1 ADCAN25IP0 ADCAN24IP2 ADCAN24IP1 ADCAN24IP0
TABLE 7-5: INTERRUPT PRIORITY REGISTERS (CONTINUED)
Register Address Bit 15 Bit14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Legend:
— = Unimplemented.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 110 2017-2018 Microchip Technology Inc.
7.3 Interrupt Resources
Many useful resources are provided on the main prod-
uct page of the Microchip website for the devices listed
in this data sheet. This product page contains the latest
updates and additional information.
7.3.1 KEY RESOURCES
•“Interrupts” (DS70000600) in the “dsPIC33/
PIC24 Family Reference Manual”
• Code Samples
• Application Notes
• Software Libraries
•Webinars
• All Related “dsPIC33/PIC24 Family Reference
Manual” Sections
• Development Tools
7.4 Interrupt Control and Status
Registers
The dsPIC33CK256MP508 family devices implement
the following registers for the interrupt controller:
• INTCON1
• INTCON2
• INTCON3
• INTCON4
•INTTREG
7.4.1 INTCON1 THROUGH INTCON4
Global interrupt control functions are controlled from
INTCON1, INTCON2, INTCON3 and INTCON4.
INTCON1 contains the Interrupt Nesting Disable bit
(NSTDIS), as well as the control and status flags for the
processor trap sources.
The INTCON2 register controls external interrupt
request signal behavior, contains the Global Interrupt
Enable bit (GIE) and the Alternate Interrupt Vector Table
Enable bit (AIVTEN).
INTCON3 contains the status flags for the Auxiliary
PLL and DO stack overflow status trap sources.
The INTCON4 register contains the Software
Generated Hard Trap Status bit (SGHT).
7.4.2 IFSx
The IFSx registers maintain all of the interrupt request
flags. Each source of interrupt has a status bit, which is
set by the respective peripherals or external signal and
is cleared via software.
7.4.3 IECx
The IECx registers maintain all of the interrupt enable
bits. These control bits are used to individually enable
interrupts from the peripherals or external signals.
7.4.4 IPCx
The IPCx registers are used to set the Interrupt Priority
Level (IPL) for each source of interrupt. Each user
interrupt source can be assigned to one of seven
priority levels.
7.4.5 INTTREG
The INTTREG register contains the associated
interrupt vector number and the new CPU Interrupt
Priority Level, which are latched into the Vector
Number (VECNUM<7:0>) and Interrupt Level bits
(ILR<3:0>) fields in the INTTREG register. The new
Interrupt Priority Level is the priority of the pending
interrupt.
The interrupt sources are assigned to the IFSx, IECx
and IPCx registers in the same sequence as they are
listed in Table 7-2. For example, INT0 (External
Interrupt 0) is shown as having Vector Number 8 and a
natural order priority of 0. Thus, the INT0IF bit is found
in IFS0<0>, the INT0IE bit in IEC0<0> and the
INT0IP<2:0> bits in the first position of IPC0
(IPC0<2:0>).
7.4.6 STATUS/CONTROL REGISTERS
Although these registers are not specifically part of the
interrupt control hardware, two of the CPU Control
registers contain bits that control interrupt functionality.
For more information on these registers, refer to
“dsPIC33E Enhanced CPU” (DS70005158) in the
“dsPIC33/PIC24 Family Reference Manual”.
• The CPU STATUS Register, SR, contains the
IPL<2:0> bits (SR<7:5>). These bits indicate the
current CPU Interrupt Priority Level. The user
software can change the current CPU Interrupt
Priority Level by writing to the IPLx bits.
• The CORCON register contains the IPL3 bit,
which together with IPL<2:0>, also indicates the
current CPU priority level. IPL3 is a read-only bit
so that trap events cannot be masked by the user
software.
All Interrupt registers are described in Register 7-3
through Register 7-7 in the following pages.
2017-2018 Microchip Technology Inc. DS70005349E-page 111
dsPIC33CK256MP508 FAMILY
REGISTER 7-1: SR: CPU STATUS REGISTER(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/C-0 R/C-0 R-0 R/W-0
OA OB SA SB OAB SAB DA DC
bit 15 bit 8
R/W-0(3)R/W-0(3)R/W-0(3)R-0 R/W-0 R/W-0 R/W-0 R/W-0
IPL2(2)IPL1(2)IPL0(2)RA NOV Z C
bit 7 bit 0
Legend: C = Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’= Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 7-5 IPL<2:0>: CPU Interrupt Priority Level Status bits(2,3)
111 = CPU Interrupt Priority Level is 7 (15); user interrupts are disabled
110 = CPU Interrupt Priority Level is 6 (14)
101 = CPU Interrupt Priority Level is 5 (13)
100 = CPU Interrupt Priority Level is 4 (12)
011 = CPU Interrupt Priority Level is 3 (11)
010 = CPU Interrupt Priority Level is 2 (10)
001 = CPU Interrupt Priority Level is 1 (9)
000 = CPU Interrupt Priority Level is 0 (8)
Note 1: For complete register details, see Register 3-1.
2: The IPL<2:0> bits are concatenated with the IPL<3> bit (CORCON<3>) to form the CPU Interrupt Priority
Level. The value in parentheses indicates the IPL, if IPL<3> = 1. User interrupts are disabled when
IPL<3> = 1.
3: The IPL<2:0> Status bits are read-only when the NSTDIS bit (INTCON1<15>) = 1.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 112 2017-2018 Microchip Technology Inc.
REGISTER 7-2: CORCON: CORE CONTROL REGISTER(1)
R/W-0 U-0 R/W-0 R/W-0 R/W-0 R-0 R-0 R-0
VAR —US1 US0 EDT DL2 DL1 DL0
bit 15 bit 8
R/W-0 R/W-0 R/W-1 R/W-0 R/C-0 R-0 R/W-0 R/W-0
SATA SATB SATDW ACCSAT IPL3(2)SFA RND IF
bit 7 bit 0
Legend: C = Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’= Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 VAR: Variable Exception Processing Latency Control bit
1 = Variable exception processing is enabled
0 = Fixed exception processing is enabled
bit 3 IPL3: CPU Interrupt Priority Level Status bit 3(2)
1 = CPU Interrupt Priority Level is greater than 7
0 = CPU Interrupt Priority Level is 7 or less
Note 1: For complete register details, see Register 3-2.
2: The IPL3 bit is concatenated with the IPL<2:0> bits (SR<7:5>) to form the CPU Interrupt Priority Level.
2017-2018 Microchip Technology Inc. DS70005349E-page 113
dsPIC33CK256MP508 FAMILY
REGISTER 7-3: INTCON1: INTERRUPT CONTROL REGISTER 1
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
NSTDIS OVAERR OVBERR COVAERR COVBERR OVATE OVBTE COVTE
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0
SFTACERR DIV0ERR DMACERR MATHERR ADDRERR STKERR OSCFAIL —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 NSTDIS: Interrupt Nesting Disable bit
1 = Interrupt nesting is disabled
0 = Interrupt nesting is enabled
bit 14 OVAERR: Accumulator A Overflow Trap Flag bit
1 = Trap was caused by an overflow of Accumulator A
0 = Trap was not caused by an overflow of Accumulator A
bit 13 OVBERR: Accumulator B Overflow Trap Flag bit
1 = Trap was caused by an overflow of Accumulator B
0 = Trap was not caused by an overflow of Accumulator B
bit 12 COVAERR: Accumulator A Catastrophic Overflow Trap Flag bit
1 = Trap was caused by a catastrophic overflow of Accumulator A
0 = Trap was not caused by a catastrophic overflow of Accumulator A
bit 11 COVBERR: Accumulator B Catastrophic Overflow Trap Flag bit
1 = Trap was caused by a catastrophic overflow of Accumulator B
0 = Trap was not caused by a catastrophic overflow of Accumulator B
bit 10 OVATE: Accumulator A Overflow Trap Enable bit
1 = Trap overflow of Accumulator A
0 = Trap is disabled
bit 9 OVBTE: Accumulator B Overflow Trap Enable bit
1 = Trap overflow of Accumulator B
0 = Trap is disabled
bit 8 COVTE: Catastrophic Overflow Trap Enable bit
1 = Trap catastrophic overflow of Accumulator A or B is enabled
0 = Trap is disabled
bit 7 SFTACERR: Shift Accumulator Error Status bit
1 = Math error trap was caused by an invalid accumulator shift
0 = Math error trap was not caused by an invalid accumulator shift
bit 6 DIV0ERR: Divide-by-Zero Error Status bit
1 = Math error trap was caused by a divide-by-zero
0 = Math error trap was not caused by a divide-by-zero
bit 5 DMACERR: DMA Controller Trap Status bit
1 = DMAC error trap has occurred
0 = DMAC error trap has not occurred
bit 4 MATHERR: Math Error Status bit
1 = Math error trap has occurred
0 = Math error trap has not occurred
dsPIC33CK256MP508 FAMILY
DS70005349E-page 114 2017-2018 Microchip Technology Inc.
bit 3 ADDRERR: Address Error Trap Status bit
1 = Address error trap has occurred
0 = Address error trap has not occurred
bit 2 STKERR: Stack Error Trap Status bit
1 = Stack error trap has occurred
0 = Stack error trap has not occurred
bit 1 OSCFAIL: Oscillator Failure Trap Status bit
1 = Oscillator failure trap has occurred
0 = Oscillator failure trap has not occurred
bit 0 Unimplemented: Read as ‘0’
REGISTER 7-3: INTCON1: INTERRUPT CONTROL REGISTER 1 (CONTINUED)
2017-2018 Microchip Technology Inc. DS70005349E-page 115
dsPIC33CK256MP508 FAMILY
REGISTER 7-4: INTCON2: INTERRUPT CONTROL REGISTER 2
R/W-1 R/W-0 R/W-0 U-0 U-0 U-0 U-0 R/W-0
GIE DISI SWTRAP — — — —AIVTEN
bit 15 bit 8
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — — INT3EP INT2EP INT1EP INT0EP
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 GIE: Global Interrupt Enable bit
1 = Interrupts and associated IE bits are enabled
0 = Interrupts are disabled, but traps are still enabled
bit 14 DISI: DISI Instruction Status bit
1 = DISI instruction is active
0 = DISI instruction is not active
bit 13 SWTRAP: Software Trap Status bit
1 = Software trap is enabled
0 = Software trap is disabled
bit 12-9 Unimplemented: Read as ‘0’
bit 8 AIVTEN: Alternate Interrupt Vector Table Enable bit
1 = Uses Alternate Interrupt Vector Table
0 = Uses standard Interrupt Vector Table
bit 7-4 Unimplemented: Read as ‘0’
bit 3 INT3EP: External Interrupt 3 Edge Detect Polarity Select bit
1 = Interrupt on negative edge
0 = Interrupt on positive edge
bit 2 INT2EP: External Interrupt 2 Edge Detect Polarity Select bit
1 = Interrupt on negative edge
0 = Interrupt on positive edge
bit 1 INT1EP: External Interrupt 1 Edge Detect Polarity Select bit
1 = Interrupt on negative edge
0 = Interrupt on positive edge
bit 0 INT0EP: External Interrupt 0 Edge Detect Polarity Select bit
1 = Interrupt on negative edge
0 = Interrupt on positive edge
dsPIC33CK256MP508 FAMILY
DS70005349E-page 116 2017-2018 Microchip Technology Inc.
REGISTER 7-5: INTCON3: INTERRUPT CONTROL REGISTER 3
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — —CAN
(1)NAE
bit 15 bit 8
U-0 U-0 U-0 R/W-0 U-0 U-0 U-0 R/W-0
— — —DOOVR— — —APLL
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9 CAN: CAN Address Error Soft Trap Status bit(1)
1 = CAN address error soft trap has occurred
0 = CAN address error soft trap has not occurred
bit 8 NAE: NVM Address Error Soft Trap Status bit
1 = NVM address error soft trap has occurred
0 = NVM address error soft trap has not occurred
bit 7-5 Unimplemented: Read as ‘0’
bit 4 DOOVR: DO Stack Overflow Soft Trap Status bit
1 = DO stack overflow soft trap has occurred
0 = DO stack overflow soft trap has not occurred
bit 3-1 Unimplemented: Read as ‘0’
bit 0 APLL: Auxiliary PLL Loss of Lock Soft Trap Status bit
1 = APLL lock soft trap has occurred
0 = APLL lock soft trap has not occurred
Note 1: The CAN peripheral is not available on all devices. Refer to Tab l e 1 and Tab l e 2 for availability.
2017-2018 Microchip Technology Inc. DS70005349E-page 117
dsPIC33CK256MP508 FAMILY
REGISTER 7-6: INTCON4: INTERRUPT CONTROL REGISTER 4
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — — ECCDBE SGHT
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-2 Unimplemented: Read as ‘0’
bit 1 ECCDBE: ECC Double-Bit Error Trap bit
1 = ECC double-bit error trap has occurred
0 = ECC double-bit error trap has not occurred
bit 0 SGHT: Software Generated Hard Trap Status bit
1 = Software generated hard trap has occurred
0 = Software generated hard trap has not occurred
dsPIC33CK256MP508 FAMILY
DS70005349E-page 118 2017-2018 Microchip Technology Inc.
REGISTER 7-7: INTTREG: INTERRUPT CONTROL AND STATUS REGISTER
U-0 U-0 R-0 U-0 R-0 R-0 R-0 R-0
——VHOLD— ILR3 ILR2 ILR1 ILR0
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
VECNUM7 VECNUM6 VECNUM5 VECNUM4 VECNUM3 VECNUM2 VECNUM1 VECNUM0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13 VHOLD: Vector Number Capture Enable bit
1 = VECNUM<7:0> bits read current value of vector number encoding tree (i.e., highest priority pending
interrupt)
0 = Vector number latched into VECNUM<7:0> at Interrupt Acknowledge and retained until next IACK
bit 12 Unimplemented: Read as ‘0’
bit 11-8 ILR<3:0>: New CPU Interrupt Priority Level bits
1111 = CPU Interrupt Priority Level is 15
...
0001 = CPU Interrupt Priority Level is 1
0000 = CPU Interrupt Priority Level is 0
bit 7-0 VECNUM<7:0>: Vector Number of Pending Interrupt bits
11111111 = 255, Reserved; do not use
...
00001001 = 9, IC1 – Input Capture 1
00001000 = 8, INT0 – External Interrupt 0
00000111 = 7, Reserved; do not use
00000110 = 6, Generic soft error trap
00000101 = 5, Reserved; do not use
00000100 = 4, Math error trap
00000011 = 3, Stack error trap
00000010 = 2, Generic hard trap
00000001 = 1, Address error trap
00000000 = 0, Oscillator fail trap
2017-2018 Microchip Technology Inc. DS70005349E-page 119
dsPIC33CK256MP508 FAMILY
8.0 I/O PORTS
Many of the device pins are shared among the peripher-
als and the Parallel I/O ports. All I/O input ports feature
Schmitt Trigger inputs for improved noise immunity. The
PORT registers are located in the SFR.
Some of the key features of the I/O ports are:
• Individual Output Pin Open-Drain Enable/Disable
• Individual Input Pin Weak Pull-up and Pull-Down
• Monitor Selective Inputs and Generate Interrupt
when Change in Pin State is Detected
• Operation during Sleep and Idle modes
8.1 Parallel I/O (PIO) Ports
All port pins have 12 registers directly associated with
their operation as digital I/Os. The Data Direction
register (TRISx) determines whether the pin is an input
or an output. If the data direction bit is a ‘1’, then the pin
is an input.
All port pins are defined as inputs after a Reset. Reads
from the latch (LATx), read the latch. Writes to the latch,
write the latch. Reads from the port (PORTx), read the
port pins, while writes to the port pins, write the latch. Any
bit and its associated data and control registers that are
not valid for a particular device are disabled. This means
the corresponding LATx and TRISx registers, and the
port pin are read as zeros.
When a pin is shared with another peripheral or func-
tion that is defined as an input only, it is nevertheless
regarded as a dedicated port because there is no
other competing source of outputs. Ta bl e 8-1 shows
the pin availability. Ta b l e 8 - 2 shows the 5V input
tolerant pins across this device.
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a compre-
hensive reference source. To complement
the information in this data sheet, refer
to “I/O Ports with Edge Detect”
(www.microchip.com/DS70005322) in the
“dsPIC33/PIC24 Family Reference
Manual”.
2: Some registers and associated bits
described in this section may not be
available on all devices.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 120 2017-2018 Microchip Technology Inc.
TABLE 8-1: PIN AND ANSELx AVAILABILITY
Device Rx15 Rx14 Rx13 Rx12 Rx11 Rx10 Rx9 Rx8 Rx7 Rx6 Rx5 Rx4 Rx3 Rx2 Rx1 Rx0
PORTA
dsPIC33XXXMP508/208 — — — — — — — — — — — X X X X X
dsPIC33XXXMP506/206 — — — — — — — — — — — X X X X X
dsPIC33XXXMP504/204 — — — — — — — — — — — X X X X X
dsPIC33XXXMP503/203 — — — — — — — — — — — X X X X X
dsPIC33XXXMP502/202 — — — — — — — — — — — X X X X X
ANSELA — — — — — — — — — — — X X X X X
PORTB
dsPIC33XXXMP508/208 X X X X X X X X X X X X X X X X
dsPIC33XXXMP506/206 X X X X X X X X X X X X X X X X
dsPIC33XXXMP504/204 X X X X X X X X X X X X X X X X
dsPIC33XXXMP503/203 X X X X X X X X X X X X X X X X
dsPIC33XXXMP502/202 X X X X X X X X X X X X X X X X
ANSELB — — — — — — X X X — — X X X X X
PORTC
dsPIC33XXXMP508/208 X X X X X X X X X X X X X X X X
dsPIC33XXXMP506/206 X X X X X X X X X X X X X X X X
dsPIC33XXXMP504/204 — — X X X X X X X X X X X X X X
dsPIC33XXXMP503/203 — — — — — — — — — — X X X X X X
dsPIC33XXXMP502/202 — — — — — — — — — — — — — — — —
ANSELC — — — — — — — — X X — — X X X X
PORTD
dsPIC33XXXMP508/208 X X X X X X X X X X X X X X X X
dsPIC33XXXMP506/206 X X X X X X X X X X X X X X X X
dsPIC33XXXMP504/204 — — X — — X — X — — — — — — X —
dsPIC33XXXMP503/203 — — — — — — — — — — — — — — — —
dsPIC33XXXMP502/202 — — — — — — — — — — — — — — — —
ANSELD — — X — X X — — — — — — — — — —
PORTE
dsPIC33XXXMP508/208 X X X X X X X X X X X X X X X X
dsPIC33XXXMP506/206 — — — — — — — — — — — — — — — —
dsPIC33XXXMP504/204 — — — — — — — — — — — — — — — —
dsPIC33XXXMP503/203 — — — — — — — — — — — — — — — —
dsPIC33XXXMP502/202 — — — — — — — — — — — — — — — —
ANSELE — — — — — — — — — — — X X X X X
TABLE 8-2: 5V INPUT TOLERANT PORTS
PORTA ——————————— RA4 RA3 RA2 RA1 RA0
PORTB RB15 RB14 RB13 RB12 RB11 RB10 RB9 RB8 RB7 RB6 RB5 RB4 RB3 RB2 RB1 RB0
PORTC RC15 RC14 RC13 RC12 RC11 RC10 RC9 RC8 RC7 RC6 RC5 RC4 RC3 RC2 RC1 RC0
PORTD RD15 RD14 RD13 RD12 RD11 RD10 RD9 RD8 RD7 RD6 RD5 RD4 RD3 RD2 RD1 RD0
PORTE RE15 RE14 RE13 RE12 RE11 RE10 RE9 RE8 RE7 RE6 RE5 RE4 RE3 RE2 RE1 RE0
Legend: Shaded pins are up to 5.5 VDC input tolerant.
2017-2018 Microchip Technology Inc. DS70005349E-page 121
dsPIC33CK256MP508 FAMILY
FIGURE 8-1: BLOCK DIAGRAM OF A TYPICAL SHARED PORT STRUCTURE
QD
CK
WR LATx +
TRISx Latch
I/O Pin
WR PORTx
Data Bus
QD
CK
Data Latch
Read PORTx
Read TRISx
WR TRISx
Peripheral Output Data Output Enable
Peripheral Input Data
I/O
Peripheral Module
Peripheral Output Enable
PIO Module
Output Multiplexers
Output Data
Input Data
Peripheral Module Enable
Read LATx
1
0
1
0
dsPIC33CK256MP508 FAMILY
DS70005349E-page 122 2017-2018 Microchip Technology Inc.
8.1.1 OPEN-DRAIN CONFIGURATION
In addition to the PORTx, LATx and TRISx registers
for data control, port pins can also be individually
configured for either digital or open-drain output. This
is controlled by the Open-Drain Enable for PORTx
register, ODCx, associated with each port. Setting any
of the bits configures the corresponding pin to act as
an open-drain output.
The open-drain feature allows the generation of
outputs, other than VDD, by using external pull-up resis-
tors. The maximum open-drain voltage allowed on any
pin is the same as the maximum VIH specification for
that particular pin.
8.2 Configuring Analog and Digital
Port Pins
The ANSELx registers control the operation of the
analog port pins. The port pins that are to function as
analog inputs or outputs must have their corresponding
ANSELx and TRISx bits set. In order to use port pins for
I/O functionality with digital modules, such as timers,
UARTs, etc., the corresponding ANSELx bit must be
cleared.
The ANSELx registers have a default value of 0xFFFF;
therefore, all pins that share analog functions are
analog (not digital) by default.
Pins with analog functions affected by the ANSELx
registers are listed with a buffer type of analog in the
Pinout I/O Descriptions (see Table 1-1).
If the TRISx bit is cleared (output) while the ANSELx bit
is set, the digital output level (VOH or VOL) is converted
by an analog peripheral, such as the ADC module or
comparator module.
When the PORTx register is read, all pins configured as
analog input channels are read as cleared (a low level).
Pins configured as digital inputs do not convert an
analog input. Analog levels on any pin, defined as a
digital input (including the ANx pins), can cause the
input buffer to consume current that exceeds the
device specifications.
8.2.1 I/O PORT WRITE/READ TIMING
One instruction cycle is required between a port
direction change or port write operation and a read
operation of the same port. Typically, this instruction
would be a NOP.
8.3 PORT Control Registers
The following registers are in the PORT module:
•Register 8-1: ANSELx (one per port)
•Register 8-2: TRISx (one per port)
•Register 8-3: PORTx (one per port)
•Register 8-4: LATx (one per port)
•Register 8-5: ODCx (one per port)
•Register 8-6: CNPUx (one per port)
•Register 8-7: CNPDx (one per port)
•Register 8-8: CNCONx (one per port – optional)
•Register 8-9: CNEN0x (one per port)
•Register 8-10: CNSTATx (one per port – optional)
•Register 8-11: CNEN1x (one per port)
•Register 8-12: CNFx (one per port)
REGISTER 8-1: ANSELx: ANALOG SELECT FOR PORTx REGISTER
R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
ANSELx<15:8>
bit 15 bit 8
R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
ANSELx<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 ANSELx<15:0>: Analog Select for PORTx bits
1 = Analog input is enabled and digital input is disabled on the PORTx[n] pin
0 = Analog input is disabled and digital input is enabled on the PORTx[n] pin
2017-2018 Microchip Technology Inc. DS70005349E-page 123
dsPIC33CK256MP508 FAMILY
REGISTER 8-2: TRISx: OUTPUT ENABLE FOR PORTx REGISTER
R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
TRISx<15:8>
bit 15 bit 8
R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
TRISx<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 TRISx<15:0>: Output Enable for PORTx bits
1 = LATx[n] is not driven on the PORTx[n] pin
0 = LATx[n] is driven on the PORTx[n] pin
REGISTER 8-3: PORTx: INPUT DATA FOR PORTx REGISTER
R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
PORTx<15:8>
bit 15 bit 8
R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
PORTx<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PORTx<15:0>: PORTx Data Input Value bits
dsPIC33CK256MP508 FAMILY
DS70005349E-page 124 2017-2018 Microchip Technology Inc.
REGISTER 8-4: LATx: OUTPUT DATA FOR PORTx REGISTER
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
LATx<15:8>
bit 15 bit 8
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
LATx<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 LATx<15:0>: PORTx Data Output Value bits
REGISTER 8-5: ODCx: OPEN-DRAIN ENABLE FOR PORTx REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ODCx<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ODCx<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 ODCx<15:0>: PORTx Open-Drain Enable bits
1 = Open-drain is enabled on the PORTx pin
0 = Open-drain is disabled on the PORTx pin
2017-2018 Microchip Technology Inc. DS70005349E-page 125
dsPIC33CK256MP508 FAMILY
REGISTER 8-6: CNPUx: CHANGE NOTIFICATION PULL-UP ENABLE FOR PORTx REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CNPUx<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CNPUx<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 CNPUx<15:0>: Change Notification Pull-up Enable for PORTx bits
1 = The pull-up for PORTx[n] is enabled – takes precedence over the pull-down selection
0 = The pull-up for PORTx[n] is disabled
REGISTER 8-7: CNPDx: CHANGE NOTIFICATION PULL-DOWN ENABLE FOR PORTx REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CNPDx<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CNPDx<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 CNPDx<15:0>: Change Notification Pull-Down Enable for PORTx bits
1 = The pull-down for PORTx[n] is enabled (if the pull-up for PORTx[n] is not enabled)
0 = The pull-down for PORTx[n] is disabled
dsPIC33CK256MP508 FAMILY
DS70005349E-page 126 2017-2018 Microchip Technology Inc.
REGISTER 8-8: CNCONx: CHANGE NOTIFICATION CONTROL FOR PORTx REGISTER
R/W-0 U-0 U-0 U-0 R/W-0 U-0 U-0 U-0
ON — — —CNSTYLE — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ON: Change Notification (CN) Control for PORTx On bit
1 = CN is enabled
0 = CN is disabled
bit 14-12 Unimplemented: Read as ‘0’
bit 11 CNSTYLE: Change Notification Style Selection bit
1 = Edge style (detects edge transitions, CNFx<15:0> bits are used for a Change Notification event)
0 = Mismatch style (detects change from last port read, CNSTATx<15:0> bits are used for a Change
Notification event)
bit 10-0 Unimplemented: Read as ‘0’
REGISTER 8-9: CNEN0x: INTERRUPT CHANGE NOTIFICATION ENABLE FOR PORTx REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CNEN0x<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CNEN0x<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 CNEN0x<15:0>: Interrupt Change Notification Enable for PORTx bits
1 = Interrupt-on-change (from the last read value) is enabled for PORTx[n]
0 = Interrupt-on-change is disabled for PORTx[n]
2017-2018 Microchip Technology Inc. DS70005349E-page 127
dsPIC33CK256MP508 FAMILY
REGISTER 8-10: CNSTATx: INTERRUPT CHANGE NOTIFICATION STATUS FOR PORTx REGISTER
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
CNSTATx<15:8>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
CNSTATx<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 CNSTATx<15:0>: Interrupt Change Notification Status for PORTx bits
When CNSTYLE (CNCONx<11>) = 0:
1 = Change occurred on PORTx[n] since last read of PORTx[n]
0 = Change did not occur on PORTx[n] since last read of PORTx[n]
REGISTER 8-11: CNEN1x: INTERRUPT CHANGE NOTIFICATION EDGE SELECT FOR PORTx
REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CNEN1x<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CNEN1x<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 CNEN1x<15:0>: Interrupt Change Notification Edge Select for PORTx bits
dsPIC33CK256MP508 FAMILY
DS70005349E-page 128 2017-2018 Microchip Technology Inc.
REGISTER 8-12: CNFx: INTERRUPT CHANGE NOTIFICATION FLAG FOR PORTx REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CNFx<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CNFx<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15- CNFx<15:0>: Interrupt Change Notification Flag for PORTx bits
When CNSTYLE (CNCONx<11>) = 1:
1 = An enabled edge event occurred on the PORTx[n] pin
0 = An enabled edge event did not occur on the PORTx[n] pin
2017-2018 Microchip Technology Inc. DS70005349E-page 129
dsPIC33CK256MP508 FAMILY
8.4 Input Change Notification (ICN)
The Input Change Notification function of the I/O ports
allows the dsPIC33CK256MP508 family devices to gen-
erate interrupt requests to the processor in response to
a Change-of-State (COS) on selected input pins. This
feature can detect input Change-of-States, even in
Sleep mode, when the clocks are disabled. Every I/O
port pin can be selected (enabled) for generating an
interrupt request on a Change-of-State. Five control
registers are associated with the Change Notification
(CN) functionality of each I/O port. To enable the
Change Notification feature for the port, the ON bit
(CNCONx<15>) must be set.
The CNEN0x and CNEN1x registers contain the CN
interrupt enable control bits for each of the input pins.
The setting of these bits enables a CN interrupt for the
corresponding pins. Also, these bits, in combination
with the CNSTYLE bit (CNCONx<11>), define a type of
transition when the interrupt is generated. Possible CN
event options are listed in Table 8-3.
The CNSTATx register indicates whether a change
occurred on the corresponding pin since the last read
of the PORTx bit. In addition to the CNSTATx register,
the CNFx register is implemented for each port. This
register contains flags for Change Notification events.
These flags are set if the valid transition edge, selected
in the CNEN0x and CNEN1x registers, is detected.
CNFx stores the occurrence of the event. CNFx bits
must be cleared in software to get the next Change
Notification interrupt. The CN interrupt is generated
only for the I/Os configured as inputs (corresponding
TRISx bits must be set).
8.5 Peripheral Pin Select (PPS)
A major challenge in general purpose devices is
providing the largest possible set of peripheral features,
while minimizing the conflict of features on I/O pins.
The challenge is even greater on low pin count devices.
In an application where more than one peripheral
needs to be assigned to a single pin, inconvenient
work arounds in application code, or a complete
redesign, may be the only option.
Peripheral Pin Select configuration provides an alter-
native to these choices by enabling peripheral set
selection and placement on a wide range of I/O pins.
By increasing the pinout options available on a particu-
lar device, users can better tailor the device to their
entire application, rather than trimming the application
to fit the device.
The Peripheral Pin Select configuration feature
operates over a fixed subset of digital I/O pins. Users
may independently map the input and/or output of most
digital peripherals to any one of these I/O pins. Hard-
ware safeguards are included that prevent accidental
or spurious changes to the peripheral mapping once it
has been established.
8.5.1 AVAILABLE PINS
The number of available pins is dependent on the par-
ticular device and its pin count. Pins that support the
Peripheral Pin Select feature include the label, “RPn”,
in their full pin designation, where “n” is the remappable
pin number. “RP” is used to designate pins that support
both remappable input and output functions.
8.5.2 AVAILABLE PERIPHERALS
The peripherals managed by the Peripheral Pin Select
are all digital only peripherals. These include general
serial communications (UART and SPI), general pur-
pose timer clock inputs, timer-related peripherals (input
capture and output compare) and interrupt-on-change
inputs.
In comparison, some digital only peripheral modules
are never included in the Peripheral Pin Select feature.
This is because the peripheral’s function requires
special I/O circuitry on a specific port and cannot be
easily connected to multiple pins. One example
includes I2C modules. A similar requirement excludes
all modules with analog inputs, such as the A/D
Converter (ADC)
A key difference between remappable and non-
remappable peripherals is that remappable peripherals
are not associated with a default I/O pin. The peripheral
must always be assigned to a specific I/O pin before it
can be used. In contrast, non-remappable peripherals
are always available on a default pin, assuming that the
peripheral is active and not conflicting with another
peripheral.
TABLE 8-3: CHANGE NOTIFICATION
EVENT OPTIONS
CNSTYLE Bit
(CNCONx<11>)
CNEN1x
Bit
CNEN0x
Bit
Change Notification Event
Description
0Does not
matter
0Disabled
0Does not
matter
1Detects a mismatch between
the last read state and the
current state of the pin
100Disabled
101Detects a positive transition
only (from ‘0’ to ‘1’)
110Detects a negative transition
only (from ‘1’ to ‘0’)
111Detects both positive and
negative transitions
Note: Pull-ups and pull-downs on Input Change
Notification pins should always be
disabled when the port pin is configured
as a digital output.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 130 2017-2018 Microchip Technology Inc.
When a remappable peripheral is active on a given I/O
pin, it takes priority over all other digital I/Os and digital
communication peripherals associated with the pin.
Priority is given regardless of the type of peripheral that
is mapped. Remappable peripherals never take priority
over any analog functions associated with the pin.
8.5.3 CONTROLLING CONFIGURATION
CHANGES
Because peripheral mapping can be changed during run
time, some restrictions on peripheral remapping are
needed to prevent accidental configuration changes. The
dsPIC33CK256MP508 devices have implemented the
control register lock sequence.
8.5.3.1 Control Register Lock
Under normal operation, writes to the RPINRx and
RPORx registers are not allowed. Attempted writes will
appear to execute normally, but the contents of the
registers will remain unchanged. To change these reg-
isters, they must be unlocked in hardware. The register
lock is controlled by the IOLOCK bit (RPCON<11>).
Setting IOLOCK prevents writes to the control registers;
clearing IOLOCK allows writes. To set or clear IOLOCK,
the NVMKEY unlock sequence must be executed:
1. Write 0x55 to NVMKEY.
2. Write 0xAA to NVMKEY.
3. Clear (or set) IOLOCK as a single operation.
IOLOCK remains in one state until changed. This
allows all of the Peripheral Pin Selects to be configured
with a single unlock sequence, followed by an update
to all of the control registers. Then, IOLOCK can be set
with a second lock sequence.
8.5.4 CONSIDERATIONS FOR
PERIPHERAL PIN SELECTION
The ability to control Peripheral Pin Selection intro-
duces several considerations into application design
that most users would never think of otherwise. This is
particularly true for several common peripherals, which
are only available as remappable peripherals.
The main consideration is that the Peripheral Pin
Selects are not available on default pins in the device’s
default (Reset) state. More specifically, because all
RPINRx registers reset to ‘1’s and RPORx registers
reset to ‘0’s, this means all PPS inputs are tied to VSS,
while all PPS outputs are disconnected. This means
that before any other application code is executed, the
user must initialize the device with the proper periph-
eral configuration. Because the IOLOCK bit resets in
the unlocked state, it is not necessary to execute the
unlock sequence after the device has come out of
Reset. For application safety, however, it is always
better to set IOLOCK and lock the configuration after
writing to the control registers.
The NVMKEY unlock sequence must be executed as an
Assembly language routine. If the bulk of the application
is written in C, or another high-level language, the unlock
sequence should be performed by writing in-line assem-
bly or by using the __builtin_write_RPCON(value)
function provided by the compiler.
Choosing the configuration requires a review of all
Peripheral Pin Selects and their pin assignments, par-
ticularly those that will not be used in the application. In
all cases, unused pin-selectable peripherals should be
disabled completely. Unused peripherals should have
their inputs assigned to an unused RPn pin function.
I/O pins with unused RPn functions should be configured
with the null peripheral output.
8.5.5 INPUT MAPPING
The inputs of the Peripheral Pin Select options are
mapped on the basis of the peripheral. That is, a control
register associated with a peripheral dictates the pin it
will be mapped to. The RPINRx registers are used to
configure peripheral input mapping. Each register con-
tains sets of 8-bit fields, with each set associated with
one of the remappable peripherals. Programming a
given peripheral’s bit field with an appropriate 8-bit
index value maps the RPn pin with the corresponding
value, or internal signal, to that peripheral. See Ta b l e 8 - 4
for a list of available inputs.
For example, Figure 8-2 illustrates remappable pin
selection for the U1RX input. Example 8-1 provides a
configuration for bidirectional communication with flow
control using UART1. The following input and output
functions are used:
• Input Functions: U1RX, U1CTS
• Output Functions: U1TX, U1RTS
Note: MPLAB® XC16 provides a built-in C
language function for unlocking and
modifying the RPCON register:
__builtin_write_RPCON(value);
For more information, see the “MPLAB®
XC16 C Compiler User’s Guide”
(DS50002071).
2017-2018 Microchip Technology Inc. DS70005349E-page 131
dsPIC33CK256MP508 FAMILY
EXAMPLE 8-1: CONFIGURING UART1
INPUT AND OUTPUT
FUNCTIONS
FIGURE 8-2: REMAPPABLE INPUT FOR
U1RX
//
*******************************************
// Unlock Registers
//*****************************************
__builtin_write_RPCON(0x0000);
//*****************************************
// Configure Input Functions (See Table 8-5)
// Assign U1Rx To Pin RP35
//***************************
_U1RXR = 35;
// Assign U1CTS To Pin RP36
//***************************
_U1CTSR = 36;
//*****************************************
// Configure Output Functions (See Table 8-7)
//*****************************************
// Assign U1Tx To Pin RP37
//***************************
_RP37 = 1;
//***************************
// Assign U1RTS To Pin RP38
//***************************
_RP38 = 2;
//*****************************************
// Lock Registers
//*****************************************
__builtin_write_RPCON(0x0800);
VSS
CMP1
RP32
0
1
32
U1RX Input
U1RXR<7:0>
to Peripheral
RP181
n
Note: For input only, Peripheral Pin Select functionality
does not have priority over TRISx settings.
Therefore, when configuring an RPn pin for input,
the corresponding bit in the TRISx register must
also be configured for input (set to ‘1’).
Physical connection to a pin can be made
through RP32 through RP71. There are internal
signals and virtual pins that can be connected to
an input. Tab l e 8-4 shows the details of the input
assignment.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 132 2017-2018 Microchip Technology Inc.
TABLE 8-4: REMAPPABLE PIN INPUTS
RPINRx<15:8>
or RPINRx<7:0> Function Available on Ports
0V
SS Internal
1 Comparator 1 Internal
2 Comparator 2 Internal
3 Comparator 3 Internal
4-5 RP4-RP5 Reserved
6 PTG Trigger 26 Internal
7 PTG Trigger 27 Internal
8-10 RP8-RP10 Reserved
11 PWM Event Out C Internal
12 PWM Event Out D Internal
13 PWM Event Out E Internal
14-31 RP14-RP31 Reserved
32 RP32 Port Pin RB0
33 RP33 Port Pin RB1
34 RP34 Port Pin RB2
35 RP35 Port Pin RB3
36 RP36 Port Pin RB4
37 RP37 Port Pin RB5
38 RP38 Port Pin RB6
39 RP39 Port Pin RB7
40 RP40 Port Pin RB8
41 RP41 Port Pin RB9
42 RP42 Port Pin RB10
43 RP43 Port Pin RB11
44 RP44 Port Pin RB12
45 RP45 Port Pin RB13
46 RP46 Port Pin RB14
47 RP47 Port Pin RB15
48 RP48 Port Pin RC0
49 RP49 Port Pin RC1
50 RP50 Port Pin RC2
51 RP51 Port Pin RC3
52 RP52 Port Pin RC4
53 RP53 Port Pin RC5
54 RP54 Port Pin RC6
55 RP55 Port Pin RC7
56 RP56 Port Pin RC8
57 RP57 Port Pin RC9
58 RP58 Port Pin RC10
59 RP59 Port Pin RC11
60 RP60 Port Pin RC12
61 RP61 Port Pin RC13
62 RP62 Port Pin RC14
2017-2018 Microchip Technology Inc. DS70005349E-page 133
dsPIC33CK256MP508 FAMILY
8.5.6 VIRTUAL CONNECTIONS
The dsPIC33CK256MP508 devices support six virtual
RPn pins (RP176-RP181), which are identical in
functionality to all other RPn pins, with the exception of
pinouts. These six pins are internal to the devices and
are not connected to a physical device pin.
These pins provide a simple way for inter-peripheral
connection without utilizing a physical pin. For
example, the output of the analog comparator can be
connected to RP176 and the PWM Fault input can be
configured for RP176 as well. This configuration allows
the analog comparator to trigger PWM Faults without
the use of an actual physical pin on the device.
63 RP63 Port Pin RC15
64 RP64 Port Pin RD0
65 RP65 Port Pin RD1
66 RP66 Port Pin RD2
67 RP67 Port Pin RD3
68 RP68 Port Pin RD4
69 RP69 Port Pin RD5
70 RP70 Port Pin RD6
71 RP71 Port Pin RD7
72 RP72 Port Pin RD8
73 RP73 Port Pin RD9
74 RP74 Port Pin RD10
75 RP75 Port Pin RD11
76 RP76 Port Pin RD12
77 RP77 Port Pin RD13
78 RP78 Port Pin RD14
79 RP79 Port Pin RD15
80-175 RP80-RP175 Reserved
176 RP176 Virtual RPV0
177 RP177 Virtual RPV1
178 RP178 Virtual RPV2
179 RP179 Virtual RPV3
180 RP180 Virtual RPV4
181 RP181 Virtual RPV5
TABLE 8-4: REMAPPABLE PIN INPUTS (CONTINUED)
RPINRx<15:8>
or RPINRx<7:0> Function Available on Ports
dsPIC33CK256MP508 FAMILY
DS70005349E-page 134 2017-2018 Microchip Technology Inc.
TABLE 8-5: SELECTABLE INPUT SOURCES (MAPS INPUT TO FUNCTION)
Input Name(1)Function Name Register Register Bits
External Interrupt 1 INT1 RPINR0 INT1R<7:0>
External Interrupt 2 INT2 RPINR1 INT2R<7:0>
External Interrupt 3 INT3 RPINR1 INT3R<7:0>
Timer1 External Clock T1CK RPINR2 T1CK<7:0>
SCCP Timer1 TCKI1 RPINR3 TCKI1R<7:0>
SCCP Capture 1 ICM1 RPINR3 ICM1R<7:0>
SCCP Timer2 TCKI2 RPINR4 TCKI2R<7:0>
SCCP Capture 2 ICM2 RPINR4 ICM2R<7:0>
SCCP Timer3 TCKI3 RPINR5 TCKI3R<7:0>
SCCP Capture 3 ICM3 RPINR5 ICM3R<7:0>
SCCP Timer4 TCKI4 RPINR6 TCKI4R<7:0>
SCCP Capture 4 ICM4 RPINR6 ICM4R<7:0>
SCCP Timer5 TCKI5 RPINR7 TCKI5R<7:0>
SCCP Capture 5 ICM5 RPINR7 ICM5R<7:0>
SCCP Timer6 TCKI6 RPINR8 TCKI6R<7:0>
SCCP Capture 6 ICM6 RPINR8 ICM6R<7:0>
SCCP Timer7 TCKI7 RPINR9 TCKI7R<7:0>
SCCP Capture 7 ICM7 RPINR9 ICM7R<7:0>
SCCP Timer8 TCKI8 RPINR10 TCKI8R<7:0>
SCCP Capture 8 ICM8 RPINR10 ICM8R<7:0>
xCCP Fault A OCFA RPINR11 OCFAR<7:0>
xCCP Fault B OCFB RPINR11 OCFBR<7:0>
PWM PCI 8 PCI8 RPINR12 PCI8R<7:0>
PWM PCI 9 PCI9 RPINR12 PCI9R<7:0>
PWM PCI 10 PCI10 RPINR13 PCI10R<7:0>
PWM PCI 11 PCI11 RPINR13 PCI11R<7:0>
QEI1 Input A QEIA1 RPINR14 QEIA1R<7:0>
QEI1 Input B QEIB1 RPINR14 QEIB1R<7:0>
QEI1 Index 1 Input QEINDX1 RPINR15 QEINDX1R<7:0>
QEI1 Home 1 Input QEIHOM1 RPINR15 QEIHOM1R<7:0>
QEI2 Input A QEIA2 RPINR16 QEIA2R<7:0>
QEI2 Input B QEIB2 RPINR16 QEIB2R<7:0>
QEI2 Index 1 Input QEINDX2 RPINR17 QEINDX2R<7:0>
QEI2 Home 1 Input QEIHOM2 RPINR17 QEIHOM2R<7:0>
UART1 Receive U1RX RPINR18 U1RXR<7:0>
UART1 Data-Set-Ready U1DSR RPINR18 U1DSRR<7:0>
UART2 Receive U2RX RPINR19 U2RXR<7:0>
UART2 Data-Set-Ready U2DSR RPINR19 U2DSRR<7:0>
SPI1 Data Input SDI1 RPINR20 SDI1R<7:0>
SPI1 Clock Input SCK1IN RPINR20 SCK1R<7:0>
SPI1 Slave Select SS1 RPINR21 SS1R<7:0>
Reference Clock Input REFOI RPINR21 REFOIR<7:0>
SPI2 Data Input SDI2 RPINR22 SDI2R<7:0>
Note 1: Unless otherwise noted, all inputs use the Schmitt Trigger input buffers.
2017-2018 Microchip Technology Inc. DS70005349E-page 135
dsPIC33CK256MP508 FAMILY
SPI2 Clock Input SCK2IN RPINR22 SCK2R<7:0>
SPI2 Slave Select SS2 RPINR23 SS2R<7:0>
CAN1 Input CAN1RX RPINR26 CAN1RXR<7:0>
UART3 Receive U3RX RPINR27 U3RXR<7:0>
UART3 Data-Set-Ready U3DSR RPINR27 U3DSRR<7:0>
SPI3 Data Input SDI3 RPINR29 SDI3R<7:0>
SPI3 Clock Input SCK3IN RPINR29 SCK3R<7:0>
SPI3 Slave Select SS3 RPINR30 SS3R<7:0>
MCCP Timer9 TCKI9 RPINR32 TCKI9R<7:0>
MCCP Capture 9 ICM9 RPINR33 ICM9R<7:0>
xCCP Fault C OCFC RPINR37 OCFCR<7:0>
PWM Input 17 PCI17 RPINR37 PCI17R<7:0>
PWM Input 18 PCI18 RPINR38 PCI18R<7:0>
PWM Input 12 PCI12 RPINR42 PCI12R<7:0>
PWM Input 13 PCI13 RPINR42 PCI13R<7:0>
PWM Input 14 PCI14 RPINR43 PCI14R<7:0>
PWM Input 15 PCI15 RPINR43 PCI15R<7:0>
PWM Input 16 PCI16 RPINR44 PCI16R<7:0>
SENT1 Input SENT1 RPINR44 SENT1R<7:0>
SENT2 Input SENT2 RPINR45 SENT2R<7:0>
CLC Input A CLCINA RPINR45 CLCINAR<7:0>
CLC Input B CLCINB RPINR46 CLCINBR<7:0>
CLC Input C CLCINC RPINR46 CLCINCR<7:0>
CLC Input D CLCIND RPINR47 CLCINDR<7:0>
ADC Trigger Input (ADTRIG31) ADCTRG RPINR47 ADCTRGR<7:0>
xCCP Fault D OCFD RPINR48 OCFDR<7:0>
UART1 Clear-to-Send U1CTS RPINR48 U1CTSR<7:0>
UART2 Clear-to-Send U2CTS RPINR49 U2CTSR<7:0>
UART3 Clear-to-Send U3CTS RPINR49 U3CTSR<7:0>
TABLE 8-5: SELECTABLE INPUT SOURCES (MAPS INPUT TO FUNCTION) (CONTINUED)
Input Name(1)Function Name Register Register Bits
Note 1: Unless otherwise noted, all inputs use the Schmitt Trigger input buffers.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 136 2017-2018 Microchip Technology Inc.
8.5.7 OUTPUT MAPPING
In contrast to inputs, the outputs of the Peripheral Pin
Select options are mapped on the basis of the pin. In
this case, a control register associated with a particular
pin dictates the peripheral output to be mapped. The
RPORx registers are used to control output mapping.
Each register contains sets of 6-bit fields, with each set
associated with one RPn pin (see Register 8-54
through Register 8-80). The value of the bit field corre-
sponds to one of the peripherals and that peripheral’s
output is mapped to the pin (see Table 8-7 and
Figure 8-3).
A null output is associated with the output register
Reset value of ‘0’. This is done to ensure that remap-
pable outputs remain disconnected from all output pins
by default.
FIGURE 8-3: MULTIPLEXING REMAPPABLE
OUTPUTS FOR RPn
8.5.8 MAPPING LIMITATIONS
The control schema of the peripheral select pins is not
limited to a small range of fixed peripheral configura-
tions. There are no mutual or hardware-enforced
lockouts between any of the peripheral mapping SFRs.
Literally, any combination of peripheral mappings,
across any or all of the RPn pins, is possible. This
includes both many-to-one and one-to-many mappings
of peripheral inputs, and outputs to pins. While such
mappings may be technically possible from a configu-
ration point of view, they may not be supportable from
an electrical point of view (see Table 8-6).
Note 1: There are 6 virtual output ports which are
not connected to any I/O ports (RP176-
RP181). These virtual ports can be
accessed by RPOR20, RPOR21 and
RPOR22.
RPnR<5:0>
0
54
1
Default
U1TX Output
SDO2 Output 2
PWM4L Output
53
PWM4H Output
Output Data
RP170-RP181
(Internal Virtual
RP32-RP71
(Physical Pins)
Output Ports)
2017-2018 Microchip Technology Inc. DS70005349E-page 137
dsPIC33CK256MP508 FAMILY
TABLE 8-6: REMAPPABLE OUTPUT PIN REGISTERS
Register RP Pin I/O Port
RPOR0<5:0> RP32 Port Pin RB0
RPOR0<13:8> RP33 Port Pin RB1
RPOR1<5:0> RP34 Port Pin RB2
RPOR1<13:8> RP35 Port Pin RB3
RPOR2<5:0> RP36 Port Pin RB4
RPOR2<13:8> RP37 Port Pin RB5
RPOR3<5:0> RP38 Port Pin RB6
RPOR3<13:8> RP39 Port Pin RB7
RPOR4<5:0> RP40 Port Pin RB8
RPOR4<13:8> RP41 Port Pin RB9
RPOR5<5:0> RP42 Port Pin RB10
RPOR5<13:8> RP43 Port Pin RB11
RPOR6<5:0> RP44 Port Pin RB12
RPOR6<13:8> RP45 Port Pin RB13
RPOR7<5:0> RP46 Port Pin RB14
RPOR7<13:8> RP47 Port Pin RB15
RPOR8<5:0>(1)RP48 Port Pin RC0
RPOR8<13:8>(1)RP49 Port Pin RC1
RPOR9<5:0>(1)RP50 Port Pin RC2
RPOR9<13:8>(1)RP51 Port Pin RC3
RPOR10<5:0>(1)RP52 Port Pin RC4
RPOR10<13:8>(1)RP53 Port Pin RC5
RPOR11<5:0>(1)RP54 Port Pin RC6
RPOR11<13:8>(1)RP55 Port Pin RC7
RPOR12<5:0>(1)RP56 Port Pin RC8
RPOR12<13:8>(1)RP57 Port Pin RC9
RPOR13<5:0>(1)RP58 Port Pin RC10
RPOR13<13:8>(1)RP59 Port Pin RC11
RPOR14<5:0>(1)RP60 Port Pin RC12
RPOR14<13:8>(1)RP61 Port Pin RC13
RPOR15<5:0>(1)RP62 Port Pin RC14
RPOR15<13:8>(1)RP63 Port Pin RC15
RPOR16<5:0>(1)RP64 Port Pin RD0
RPOR16<13:8>(1)RP65 Port Pin RD1
RPOR17<5:0>(1)RP66 Port Pin RD2
RPOR17<13:8>(1)RP67 Port Pin RD3
RPOR18<5:0>(1)RP68 Port Pin RD4
RPOR18<13:8>(1)RP69 Port Pin RD5
RPOR19<5:0>(1)RP70 Port Pin RD6
RPOR19<13:8>(1)RP71 Port Pin RD7
RPOR20<5:0>(1)RP72 Port Pin RD8
RPOR20<13:8>(1)RP73 Port Pin RD9
RPOR21<5:0>(1)RP74 Port Pin D10
Note 1: Availability is dependent on supported I/O ports. Refer to Table 8-1 for availability on package variants.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 138 2017-2018 Microchip Technology Inc.
RPOR21<13:8>(1)RP75 Port Pin RD11
RPOR22<5:0>(1)RP76 Port Pin RD12
RPOR22<13:8>(1)RP77 Port Pin RD13
RPOR23<5:0>(1)RP78 Port Pin RD14
RPOR23<13:8>(1)RP79 Port Pin RD15
RP80-RP175 Reserved
RPOR24<5:0> RP176 Virtual Pin RPV0
RPOR24<13:8> RP177 Virtual Pin RPV1
RPOR25<5:0> RP178 Virtual Pin RPV2
RPOR25<13:8> RP179 Virtual Pin RPV3
RPOR26<5:0> RP180 Virtual Pin RPV4
RPOR26<13:8> RP181 Virtual Pin RPV5
TABLE 8-6: REMAPPABLE OUTPUT PIN REGISTERS (CONTINUED)
Register RP Pin I/O Port
Note 1: Availability is dependent on supported I/O ports. Refer to Ta b l e 8- 1 for availability on package variants.
2017-2018 Microchip Technology Inc. DS70005349E-page 139
dsPIC33CK256MP508 FAMILY
TABLE 8-7: OUTPUT SELECTION FOR REMAPPABLE PINS (RPn)
Function RPnR<5:0> Output Name
Default PORT 000000 RPn tied to Default Pin
U1TX 000001 RPn tied to UART1 Transmit
U1RTS 000010 RPn tied to UART1 Request-to-Send
U2TX 000011 RPn tied to UART2 Transmit
U2RTS 000100 RPn tied to UART2 Request-to-Send
SDO1 000101 RPn tied to SPI1 Data Output
SCK1 000110 RPn tied to SPI1 Clock Output
SS1 000111 RPn tied to SPI1 Slave Select
SDO2 001000 RPn tied to SPI2 Data Output
SCK2 001001 RPn tied to SPI2 Clock Output
SS2 001010 RPn tied to SPI2 Slave Select
SDO3 001011 RPn tied to SPI3 Data Output
SCK3 001100 RPn tied to SPI3 Clock Output
SS3001101 RPn tied to SPI3 Slave Select
REFCLKO 001110 RPn tied to Reference Clock Output
OCM1 001111 RPn tied to SCCP1 Output
OCM2 010000 RPn tied to SCCP2 Output
OCM3 010001 RPn tied to SCCP3 Output
OCM4 010010 RPn tied to SCCP4 Output
OCM5 010011 RPn tied to SCCP5 Output
OCM6 010100 RPn tied to SCCP6 Output
CAN1 010101 RPn tied to CAN1 Output
CMP1 010111 RPn tied to Comparator 1 Output
CMP2 011000 RPn tied to Comparator 2 Output
CMP3 011001 RPn tied to Comparator 3 Output
U3TX 011011 RPn tied to UART3 Transmit
U3RTS 011100 RPn tied to UART3 Request-to-Send
PWM4H 100010 RPn tied to PWM4H Output
PWM4L 100011 RPn tied to PWM4L Output
PWMEA 100100 RPn tied to PWM Event A Output
PWMEB 100101 RPn tied to PWM Event B Output
QEICMP1 100110 RPn tied to QEI1 Comparator Output
QEICMP2 100111 RPn tied to QEI2 Comparator Output
CLC1OUT 101000 RPn tied to CLC1 Output
CLC2OUT 101001 RPn tied to CLC2 Output
OCM7 101010 RPn tied to SCCP7 Output
OCM8 101011 RPn tied to SCCP8 Output
PWMEC 101100 RPn tied to PWM Event C Output
PWMED 101101 RPn tied to PWM Event D Output
PTGTRG24 101110 PTG Trigger Output 24
PTGTRG25 101111 PTG Trigger Output 25
SENT1OUT 110000 RPn tied to SENT1 Output
SENT2OUT 110001 RPn tied to SENT2 Output
dsPIC33CK256MP508 FAMILY
DS70005349E-page 140 2017-2018 Microchip Technology Inc.
MCCP9A 110010 RPn tied to MCCP9 Output A
MCCP9B 110011 RPn tied to MCCP9 Output B
MCCP9C 110100 RPn tied to MCCP9 Output C
MCCP9D 110101 RPn tied to MCCP9 Output D
MCCP9E 110110 RPn tied to MCCP9 Output E
MCCP9F 110111 RPn tied to MCCP9 Output F
CLC3OUT 111011 RPn tied to CLC4 Output
CLC4OUT 111100 RPn tied to CLC4 Output
U1DTR 111101 RPn tied to UART1 DTR
U2DTR 111110 RPn tied to UART2 DTR
U3DTR 111111 RPn tied to UART3 DTR
TABLE 8-7: OUTPUT SELECTION FOR REMAPPABLE PINS (RPn) (CONTINUED)
Function RPnR<5:0> Output Name
2017-2018 Microchip Technology Inc. DS70005349E-page 141
dsPIC33CK256MP508 FAMILY
8.5.9 I/O HELPFUL TIPS
1. In some cases, certain pins, as defined in
Table 33-15 under “Injection Current”, have inter-
nal protection diodes to VDD and VSS. The term,
“Injection Current”, is also referred to as “Clamp
Current”. On designated pins, with sufficient exter-
nal current-limiting precautions by the user, I/O pin
input voltages are allowed to be greater or lesser
than the data sheet absolute maximum ratings,
with respect to the VSS and VDD supplies. Note
that when the user application forward biases
either of the high or low-side internal input clamp
diodes, that the resulting current being injected
into the device that is clamped internally by the
VDD and VSS power rails, may affect the ADC
accuracy by four to six counts.
2. I/O pins that are shared with any analog input pin
(i.e., ANx) are always analog pins, by default, after
any Reset. Consequently, configuring a pin as an
analog input pin automatically disables the digital
input pin buffer and any attempt to read the digital
input level by reading PORTx or LATx will always
return a ‘0’, regardless of the digital logic level on
the pin. To use a pin as a digital I/O pin on a shared
ANx pin, the user application needs to configure the
Analog Select for PORTx registers in the I/O ports
module (i.e., ANSELx) by setting the appropriate bit
that corresponds to that I/O port pin to a ‘0’.
3. Most I/O pins have multiple functions. Referring to
the device pin diagrams in this data sheet, the prior-
ities of the functions allocated to any pins are
indicated by reading the pin name, from left-to-right.
The left most function name takes precedence over
any function to its right in the naming convention.
For example: AN16/T2CK/T7CK/RC1; this indi-
cates that AN16 is the highest priority in this
example and will supersede all other functions to its
right in the list. Those other functions to its right,
even if enabled, would not work as long as any
other function to its left was enabled. This rule
applies to all of the functions listed for a given pin.
4. Each pin has an internal weak pull-up resistor and
pull-down resistor that can be configured using the
CNPUx and CNPDx registers, respectively. These
resistors eliminate the need for external resistors
in certain applications. The internal pull-up is up to
~(VDD – 0.8), not VDD. This value is still above the
minimum VIH of CMOS and TTL devices.
5. When driving LEDs directly, the I/O pin can source
or sink more current than what is specified in the
VOH/IOH and VOL/IOL DC characteristics specifica-
tion. The respective IOH and IOL current rating only
applies to maintaining the corresponding output at
or above the VOH, and at or below the VOL levels.
However, for LEDs, unlike digital inputs of an exter-
nally connected device, they are not governed by
the same minimum VIH/VIL levels. An I/O pin output
can safely sink or source any current less than that
listed in the Absolute Maximum Ratings in
Section 33.0 “Electrical Characteristics” of this
data sheet. For example:
VOH = 2.4v @ IOH = -8 mA and VDD = 3.3V
The maximum output current sourced by any 8 mA
I/O pin = 12 mA.
LED source current < 12 mA is technically permitted.
Note: Although it is not possible to use a digital
input pin when its analog function is
enabled, it is possible to use the digital I/O
output function, TRISx = 0x0, while the
analog function is also enabled. However,
this is not recommended, particularly if the
analog input is connected to an external
analog voltage source, which would
create signal contention between the
analog signal and the output pin driver.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 142 2017-2018 Microchip Technology Inc.
6. The Peripheral Pin Select (PPS) pin mapping rules
are as follows:
a) Only one “output” function can be active on a
given pin at any time, regardless if it is a
dedicated or remappable function (one pin,
one output).
b) It is possible to assign a “remappable output”
function to multiple pins and externally short or
tie them together for increased current drive.
c) If any “dedicated output” function is enabled
on a pin, it will take precedence over any
remappable “output” function.
d) If any “dedicated digital” (input or output) func-
tion is enabled on a pin, any number of “input”
remappable functions can be mapped to the
same pin.
e) If any “dedicated analog” function(s) are
enabled on a given pin, “digital input(s)” of any
kind will all be disabled, although a single “dig-
ital output”, at the user’s cautionary discretion,
can be enabled and active as long as there is
no signal contention with an external analog
input signal. For example, it is possible for the
ADC to convert the digital output logic level, or
to toggle a digital output on a comparator or
ADC input, provided there is no external
analog input, such as for a built-in self-test.
f) Any number of “input” remappable functions
can be mapped to the same pin(s) at the same
time, including to any pin with a single output
from either a dedicated or remappable “output”.
g) The TRISx registers control only the digital I/O
output buffer. Any other dedicated or remap-
pable active “output” will automatically override
the TRISx setting. The TRISx register does not
control the digital logic “input” buffer. Remap-
pable digital “inputs” do not automatically
override TRISx settings, which means that the
TRISx bit must be set to input for pins with only
remappable input function(s) assigned.
h) All analog pins are enabled by default after any
Reset and the corresponding digital input buffer
on the pin has been disabled. Only the Analog
Select for PORTx (ANSELx) registers control
the digital input buffer, not the TRISx register.
The user must disable the analog function on a
pin using the Analog Select for PORTx regis-
ters in order to use any “digital input(s)” on a
corresponding pin, no exceptions.
8.5.10 I/O PORTS RESOURCES
Many useful resources are provided on the main prod-
uct page of the Microchip website for the devices listed
in this data sheet. This product page contains the latest
updates and additional information.
8.5.10.1 Key Resources
•“I/O Ports with Edge Detect” (DS70005322) in
the “dsPIC33/PIC24 Family Reference Manual”
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All Related “dsPIC33/PIC24 Family Reference
Manual” Sections
• Development Tools
2017-2018 Microchip Technology Inc. DS70005349E-page 143
dsPIC33CK256MP508 FAMILY
TABLE 8-8: PORTA REGISTER SUMMARY
Register Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
ANSELA — — — — — — — — — — — ANSELA<4:0>
TRISA — — — — — — — — — — —TRISA<4:0>
PORTA — — — — — — — — — — —RA<4:0>
LATA — — — — — — — — — — — LATA<4:0>
ODCA — — — — — — — — — — —ODCA<4:0>
CNPUA — — — — — — — — — — — CNPUA<4:0>
CNPDA — — — — — — — — — — — CNPDA<4:0>
CNCONA ON — — — CNSTYLE — — — — — — — — — — —
CNEN0A — — — — — — — — — — — CNEN0A<4:0>
CNSTATA — — — — — — — — — — — CNSTATA<4:0>
CNEN1A — — — — — — — — — — — CNEN1A<4:0>
CNFA — — — — — — — — — — — CNFA<4:0>
TABLE 8-9: PORTB REGISTER SUMMARY
Register Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
ANSELB — — — — — — ANSELB<9:7> —— ANSELB<4:0>
TRISB TRISB<15:0>
PORTB RB<15:0>
LATB LATB<15:0>
ODCB ODCB<15:0>
CNPUB CNPUB<15:0>
CNPDB CNPDB<15:0>
CNCONB ON — — —CNSTYLE— — — — — — — — — — —
CNEN0B CNEN0<15:0>
CNSTATB CNSTATB<15:0>
CNEN1B CNEN1B<15:0>
CNFB CNFB<15:0>
dsPIC33CK256MP508 FAMILY
DS70005349E-page 144 2017-2018 Microchip Technology Inc.
TABLE 8-10: PORTC REGISTER SUMMARY
Register Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
ANSELC — — — — — — — — ANSELC<7:6> —— ANSELC<3:0>
TRISC TRISC<15:0>
PORTC RC<15:0>
LATC LATC<15:0>
ODCC ODCC<15:0>
CNPUC CNPUC<15:0>
CNPDC CNPDC<15:0>
CNCONC ON — — — CNSTYLE — — — — — — — — — — —
CNEN0C CNEN0C<15:0>
CNSTATC CNSTATC<15:0>
CNEN1C CNEN1C<15:0>
CNFC CNFC<15:0>
TABLE 8-11: PORTD REGISTER SUMMARY
Register Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
ANSELD —— ANSELD<13> — ANSELD<11:10> — — — — — — — — — —
TRISD TRISD<15:0>
PORTD RD<15:0>
LATD LATD<15:0>
ODCD ODCD<15:0>
CNPUD CNPUD<15:0>
CNPDD CNPDD<15:0>
CNCOND ON — — — CNSTYLE — — — — — — — — — — —
CNEN0D CNEN0D<15:0>
CNSTATD CNSTATD<15:0>
CNEN1D CNEN1D<15:0>
CNFD CNFD<15:0>
2017-2018 Microchip Technology Inc. DS70005349E-page 145
dsPIC33CK256MP508 FAMILY
TABLE 8-12: PORTE REGISTER SUMMARY
Register Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
ANSLE — — — — — — — — — — — — — — — —
TRISE TRISE<15:0>
PORTE RE<15:0>
LATE LATE<15:0>
ODCE ODCE<15:0>
CNPUE CNPUE<15:0>
CNPDE CNPDE<15:0>
CNCONE ON — — — CNSTYLE — — — — — — — — — — —
CNEN0E CNEN0E<15:0>
CNSTATE CNSTATE<15:0>
CNEN1E CNEN1E<15:0>
CNFE CNFE<15:0>
dsPIC33CK256MP508 FAMILY
DS70005349E-page 146 2017-2018 Microchip Technology Inc.
8.5.11 PERIPHERAL PIN SELECT REGISTERS
REGISTER 8-13: RPCON: PERIPHERAL REMAPPING CONFIGURATION REGISTER(1)
U-0 U-0 U-0 U-0 R/W-0 U-0 U-0 U-0
— — — — IOLOCK — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 Unimplemented: Read as ‘0’
bit 11 IOLOCK: Peripheral Remapping Register Lock bit
1 = All Peripheral Remapping registers are locked and cannot be written
0 = All Peripheral Remapping registers are unlocked and can be written
bit 10-0 Unimplemented: Read as ‘0’
Note 1: Writing to this register needs an unlock sequence (see Section 8.5.3 “Controlling Configuration
Changes”).
REGISTER 8-14: RPINR0: PERIPHERAL PIN SELECT INPUT REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INT1R7 INT1R6 INT1R5 INT1R4 INT1R3 INT1R2 INT1R1 INT1R0
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 INT1R<7:0>: Assign External Interrupt 1 (INT1) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 Unimplemented: Read as ‘0’
2017-2018 Microchip Technology Inc. DS70005349E-page 147
dsPIC33CK256MP508 FAMILY
REGISTER 8-15: RPINR1: PERIPHERAL PIN SELECT INPUT REGISTER 1
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INT3R7 INT3R6 INT3R5 INT3R4 INT3R3 INT3R2 INT3R1 INT3R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INT2R7 INT2R6 INT2R5 INT2R4 INT2R3 INT2R2 INT2R1 INT2R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 INT3R<7:0>: Assign External Interrupt 3 (INT3) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 INT2R<7:0>: Assign External Interrupt 2 (INT2) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
REGISTER 8-16: RPINR2: PERIPHERAL PIN SELECT INPUT REGISTER 2
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
T1CKR7 T1CKR6 T1CKR5 T1CKR4 T1CKR3 T1CKR2 T1CKR1 T1CKR0
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 T1CKR<7:0>: Assign Timer1 External Clock (T1CK) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 Unimplemented: Read as ‘0’
dsPIC33CK256MP508 FAMILY
DS70005349E-page 148 2017-2018 Microchip Technology Inc.
REGISTER 8-17: RPINR3: PERIPHERAL PIN SELECT INPUT REGISTER 3
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ICM1R7 ICM1R6 ICM1R5 ICM1R4 ICM1R3 ICM1R2 ICM1R1 ICM1R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TCKI1R7 TCKI1R6 TCKI1R5 TCKI1R4 TCKI1R3 TCKI1R2 TCKI1R1 TCKI1R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 ICM1R<7:0>: Assign SCCP Capture 1 (ICM1) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 TCKI1<7:0>: Assign SCCP Timer1 (TCKI1) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
REGISTER 8-18: RPINR4: PERIPHERAL PIN SELECT INPUT REGISTER 4
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ICM2R7 ICM2R6 ICM2R5 ICM2R4 ICM2R3 ICM2R2 ICM2R1 ICM2R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TCKI2R7 TCKI2R6 TCKI2R5 TCKI2R4 TCKI2R3 TCKI2R2 TCKI2R1 TCKI2R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 ICM2R<7:0>: Assign SCCP Capture 2 (ICM2) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 TCKI2R<7:0>: Assign SCCP Timer2 (TCKI2) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
2017-2018 Microchip Technology Inc. DS70005349E-page 149
dsPIC33CK256MP508 FAMILY
REGISTER 8-19: RPINR5: PERIPHERAL PIN SELECT INPUT REGISTER 5
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ICM3R7 ICM3R6 ICM3R5 ICM3R4 ICM3R3 ICM3R2 ICM3R1 ICM3R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TCKI3R7 TCKI3R6 TCKI3R5 TCKI3R4 TCKI3R3 TCKI3R2 TCKI3R1 TCKI3R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 ICM3R<7:0>: Assign SCCP Capture 3 (ICM3) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 TCKI3R<7:0>: Assign SCCP Timer3 (TCKI3) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
REGISTER 8-20: RPINR6: PERIPHERAL PIN SELECT INPUT REGISTER 6
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ICM4R7 ICM4R6 ICM4R5 ICM4R4 ICM4R3 ICM4R2 ICM4R1 ICM4R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TCKI4R7 TCKI4R6 TCKI4R5 TCKI4R4 TCKI4R3 TCKI4R2 TCKI4R1 TCKI4R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 ICM4R<7:0>: Assign SCCP Capture 4 (ICM4) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 TCKI4R<7:0>: Assign SCCP Timer4 (TCKI4) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
dsPIC33CK256MP508 FAMILY
DS70005349E-page 150 2017-2018 Microchip Technology Inc.
REGISTER 8-21: RPINR7: PERIPHERAL PIN SELECT INPUT REGISTER 7
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ICM5R7 ICM5R6 ICM5R5 ICM5R4 ICM5R3 ICM5R2 ICM5R1 ICM5R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TCKI5R7 TCKI5R6 TCKI5R5 TCKI5R4 TCKI5R3 TCKI5R2 TCKI5R1 TCKI5R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 ICM5R<7:0>: Assign SCCP Capture 5 (ICM5) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 TCKI5R<7:0>: Assign SCCP Timer5 (TCKI5) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
REGISTER 8-22: RPINR8: PERIPHERAL PIN SELECT INPUT REGISTER 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ICM6R7 ICM6R6 ICM6R5 ICM6R4 ICM6R3 ICM6R2 ICM6R1 ICM6R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TCKI6R7 TCKI6R6 TCKI6R5 TCKI6R4 TCKI6R3 TCKI6R2 TCKI6R1 TCKI6R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 ICM6R<7:0>: Assign SCCP Capture 6 (ICM6) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 TCKI6R<7:0>: Assign SCCP Timer6 (TCKI6) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
2017-2018 Microchip Technology Inc. DS70005349E-page 151
dsPIC33CK256MP508 FAMILY
REGISTER 8-23: RPINR9: PERIPHERAL PIN SELECT INPUT REGISTER 9
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ICM7R7 ICM7R6 ICM7R5 ICM7R4 ICM7R3 ICM7R2 ICM7R1 ICM7R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TCKI7R7 TCKI7R6 TCKI7R5 TCKI7R4 TCKI7R3 TCKI7R2 TCKI7R1 TCKI7R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 ICM7R<7:0>: Assign SCCP Capture 7 (ICM7) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 TCKI7R<7:0>: Assign SCCP Timer7 (TCKI7) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
REGISTER 8-24: RPINR10: PERIPHERAL PIN SELECT INPUT REGISTER 10
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ICM8R7 ICM8R6 ICM8R5 ICM8R4 ICM8R3 ICM8R2 ICM8R1 ICM8R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TCKI8R7 TCKI8R6 TCKI8R5 TCKI8R4 TCKI8R3 TCKI8R2 TCKI8R1 TCKI8R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 ICM8R<7:0>: Assign SCCP Capture 8 (ICM8) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 TCKI8R<7:0>: Assign SCCP Timer8 (TCKI8) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
dsPIC33CK256MP508 FAMILY
DS70005349E-page 152 2017-2018 Microchip Technology Inc.
REGISTER 8-25: RPINR11: PERIPHERAL PIN SELECT INPUT REGISTER 11
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
OCFBR7 OCFBR6 OCFBR5 OCFBR4 OCFBR3 OCFBR2 OCFBR1 OCFBR0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
OCFAR7 OCFAR6 OCFAR5 OCFAR4 OCFAR3 OCFAR2 OCFAR1 OCFAR0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 OCFBR<7:0>: Assign SCCP Fault B (OCFB) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 OCFAR<7:0>: Assign SCCP Fault A (OCFA) Input to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
REGISTER 8-26: RPINR12: PERIPHERAL PIN SELECT INPUT REGISTER 12
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PCI9R7 PCI9R6 PCI9R5 PCI9R4 PCI9R3 PCI9R2 PCI9R1 PCI9R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PCI8R7 PCI8R6 PCI8R5 PCI8R4 PCI8R3 PCI8R2 PCI8R1 PCI8R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 PCI9R<7:0>: Assign PWM Input 9 (PCI9) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 PCI8R<7:0>: Assign PWM Input 8 (PCI8) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
2017-2018 Microchip Technology Inc. DS70005349E-page 153
dsPIC33CK256MP508 FAMILY
REGISTER 8-27: RPINR13: PERIPHERAL PIN SELECT INPUT REGISTER 13
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PCI11R7 PCI11R6 PCI11R5 PCI11R4 PCI11R3 PCI11R2 PCI11R1 PCI11R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PCI10R7 PCI10R6 PCI10R5 PCI10R4 PCI10R3 PCI10R2 PCI10R1 PCI10R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 PCI11R<7:0>: Assign PWM Input 11 (PCI11) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 PCI10R<7:0>: Assign PWM Input 10 (PCI10) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
REGISTER 8-28: RPINR14: PERIPHERAL PIN SELECT INPUT REGISTER 14
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEIB1R7 QEIB1R6 QEIB1R5 QEIB1R4 QEIB1R3 QEIB1R2 QEIB1R1 QEIB1R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEIA1R7 QEIA1R6 QEIA1R5 QEIA1R4 QEIA1R3 QEIA1R2 QEIA1R1 QEIA1R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 QEIB1R<7:0>: Assign QEI1 Input B (QEIB1) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 QEIA1R<7:0>: Assign QEI1 Input A (QEIA1) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
dsPIC33CK256MP508 FAMILY
DS70005349E-page 154 2017-2018 Microchip Technology Inc.
REGISTER 8-29: RPINR15: PERIPHERAL PIN SELECT INPUT REGISTER 15
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEIHOM1R7 QEIHOM1R6 QEIHOM1R5 QEIHOM1R4 QEIHOM1R3 QEIHOM1R2 QEIHOM1R1 QEIHOM1R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEINDX1R7 QEINDX1R6 QEINDX1R5 QEINDX1R4 QEINDX1R3 QEINDX1R2 QEINDX1R1 QEINDX1R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 QEIHOM1R<7:0>: Assign QEI Home 1 Input (QEIHOM1) to the Corresponding RPn Pin bits
See Tab le 8-4.
bit 7-0 QEINDX1R<7:0>: Assign QEI Index 1 Input (QEINDX1) to the Corresponding RPn Pin bits
See Tab le 8-4.
REGISTER 8-30: RPINR16: PERIPHERAL PIN SELECT INPUT REGISTER 16
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEIB2R7 QEIB2R6 QEIB2R5 QEIB2R4 QEIB2R3 QEIB2R2 QEIB2R1 QEIB2R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEIA2R7 QEIA2R6 QEIA2R5 QEIA2R4 QEIA2R3 QEIA2R2 QEIA2R1 QEIA2R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 QEIB2R<7:0>: Assign QEI2 Input B (QEIB2) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 QEIA2R<7:0>: Assign QEI2 Input A (QEIA2) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
2017-2018 Microchip Technology Inc. DS70005349E-page 155
dsPIC33CK256MP508 FAMILY
REGISTER 8-31: RPINR17: PERIPHERAL PIN SELECT INPUT REGISTER 17
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEIHOM2R7 QEIHOM2R6 QEIHOM2R5 QEIHOM2R4 QEIHOM2R3 QEIHOM2R2 QEIHOM2R1 QEIHOM2R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEINDX2R7 QEINDX2R6 QEINDX2R5 QEINDX2R4 QEINDX2R3 QEINDX2R2 QEINDX2R1 QEINDX2R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 QEIHOM2R<7:0>: Assign QEI Home 2 Input (QEIHOM2) to the Corresponding RPn Pin bits
See Tab le 8-4.
bit 7-0 QEINDX2R<7:0>: Assign QEI Index 2 Input (QEINDX2) to the Corresponding RPn Pin bits
See Tab le 8-4.
REGISTER 8-32: RPINR18: PERIPHERAL PIN SELECT INPUT REGISTER 18
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
U1DSRR7 U1DSRR6 U1DSRR5 U1DSRR4 U1DSRR3 U1DSRR2 U1DSRR1 U1DSRR0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
U1RXR7 U1RXR6 U1RXR5 U1RXR4 U1RXR3 U1RXR2 U1RXR1 U1RXR0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 U1DSRR<7:0>: Assign UART1 Data-Set-Ready (U1DSR) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 U1RXR<7:0>: Assign UART1 Receive (U1RX) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
dsPIC33CK256MP508 FAMILY
DS70005349E-page 156 2017-2018 Microchip Technology Inc.
REGISTER 8-33: RPINR19: PERIPHERAL PIN SELECT INPUT REGISTER 19
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
U2DSRR7 U2DSRR6 U2DSRR5 U2DSRR4 U2DSRR3 U2DSRR2 U2DSRR1 U2DSRR0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
U2RXR7 U2RXR6 U2RXR5 U2RXR4 U2RXR3 U2RXR2 U2RXR1 U2RXR0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 U2DSRR<7:0>: Assign UART2 Data-Set-Ready (U2DSR) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 U2RXR<7:0>: Assign UART2 Receive (U2RX) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
REGISTER 8-34: RPINR20: PERIPHERAL PIN SELECT INPUT REGISTER 20
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SCK1R7 SCK1R6 SCK1R5 SCK1R4 SCK1R3 SCK1R2 SCK1R1 SCK1R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SDI1R7 SDI1R6 SDI1R5 SDI1R4 SDI1R3 SDI1R2 SDI1R1 SDI1R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 SCK1R<7:0>: Assign SPI1 Clock Input (SCK1IN) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 SDI1R<7:0>: Assign SPI1 Data Input (SDI1) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
2017-2018 Microchip Technology Inc. DS70005349E-page 157
dsPIC33CK256MP508 FAMILY
REGISTER 8-35: RPINR21: PERIPHERAL PIN SELECT INPUT REGISTER 21
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
REFOIR7 REFOIR6 REFOIR5 REFOIR4 REFOIR3 REFOIR2 REFOIR1 REFOIR0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SS1R7 SS1R6 SS1R5 SS1R4 SS1R3 SS1R2 SS1R1 SS1R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 REFOIR<7:0>: Assign Reference Clock Input (REFOI) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 SS1R<7:0>: Assign SPI1 Slave Select (SS1) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
REGISTER 8-36: RPINR22: PERIPHERAL PIN SELECT INPUT REGISTER 22
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SCK2R7 SCK2R6 SCK2R5 SCK2R4 SCK2R3 SCK2R2 SCK2R1 SCK2R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SDI2R7 SDI2R6 SDI2R5 SDI2R4 SDI2R3 SDI2R2 SDI2R1 SDI2R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 SCK2R<7:0>: Assign SPI2 Clock Input (SCK2IN) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 SDI2R<7:0>: Assign SPI2 Data Input (SDI2) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
dsPIC33CK256MP508 FAMILY
DS70005349E-page 158 2017-2018 Microchip Technology Inc.
REGISTER 8-37: RPINR23: PERIPHERAL PIN SELECT INPUT REGISTER 23
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SS2R7 SS2R6 SS2R5 SS2R4 SS2R3 SS2R2 SS2R1 SS2R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-0 SS2R<7:0>: Assign SPI2 Slave Select (SS2) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
REGISTER 8-38: RPINR26: PERIPHERAL PIN SELECT INPUT REGISTER 26
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CAN1RXR7 CAN1RXR6 CAN1RXR5 CAN1RXR4 CAN1RXR3 CAN1RXR2 CAN1RXR1 CAN1RXR0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-0 CAN1RXR<7:0>: Assign CAN1 Input (CAN1RX) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
2017-2018 Microchip Technology Inc. DS70005349E-page 159
dsPIC33CK256MP508 FAMILY
REGISTER 8-39: RPINR27: PERIPHERAL PIN SELECT INPUT REGISTER 27
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
U3DSRR7 U3DSRR6 U3DSRR5 U3DSRR4 U3DSRR3 U3DSRR2 U3DSRR1 U3DSRR0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
U3RXR7 U3RXR6 U3RXR5 U3RXR4 U3RXR3 U3RXR2 U3RXR1 U3RXR0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 U3DSRR<7:0>: Assign UART3 Data-Set-Ready (U3DSR) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 U3RXR<7:0>: Assign UART3 Receive (U3RX) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
REGISTER 8-40: RPINR29: PERIPHERAL PIN SELECT INPUT REGISTER 29
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SCK3R7 SCK3R6 SCK3R5 SCK3R4 SCK3R3 SCK3R2 SCK3R1 SCK3R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SDI3R7 SDI3R6 SDI3R5 SDI3R4 SDI3R3 SDI3R2 SDI3R1 SDI3R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 SCK3R<7:0>: Assign SPI3 Clock Input (SCK3IN) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 SDI3R<7:0>: Assign SPI3 Data Input (SDI3) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
dsPIC33CK256MP508 FAMILY
DS70005349E-page 160 2017-2018 Microchip Technology Inc.
REGISTER 8-41: RPINR30: PERIPHERAL PIN SELECT INPUT REGISTER 30
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SS3R7 SS3R6 SS3R5 SS3R4 SS3R3 SS3R2 SS3R1 SS3R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-0 SS3R<7:0>: Assign SPI3 Slave Select (SS2) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
REGISTER 8-42: RPINR32: PERIPHERAL PIN SELECT INPUT REGISTER 32
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TCKI9R7 TCKI9R6 TCKI9R5 TCKI9R4 TCKI9R3 TCKI9R2 TCKI9R1 TCKI9R0
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 TCKI9R<7:0>: Assign MCCP Timer9 Input (TCKI9) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 Unimplemented: Read as ‘0’
2017-2018 Microchip Technology Inc. DS70005349E-page 161
dsPIC33CK256MP508 FAMILY
REGISTER 8-43: RPINR33: PERIPHERAL PIN SELECT INPUT REGISTER 33
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ICM9R7 ICM9R6 ICM9R5 ICM9R4 ICM9R3 ICM9R2 ICM9R1 ICM9R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-0 ICM9R<7:0>: Assign MCCP Capture 9 Input (ICM9) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
REGISTER 8-44: RPINR37: PERIPHERAL PIN SELECT INPUT REGISTER 37
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PCI17R7 PCI17R6 PCI17R5 PCI17R4 PCI17R3 PCI17R2 PCI17R1 PCI17R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
OCFCR7 OCFCR6 OCFCR5 OCFCR4 OCFCR3 OCFCR2 OCFCR1 OCFCR0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 PCI17R<7:0>: Assign PWM Input 17 (PCI17) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 OCFCR<7:0>: Assign xCCP Fault C (OCFC) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
dsPIC33CK256MP508 FAMILY
DS70005349E-page 162 2017-2018 Microchip Technology Inc.
REGISTER 8-45: RPINR38: PERIPHERAL PIN SELECT INPUT REGISTER 38
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PCI18R7 PCI18R6 PCI18R5 PCI18R4 PCI18R3 PCI18R2 PCI18R1 PCI18R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-0 PCI17R<7:0>: Assign PWM Input 17 (PCI17) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
REGISTER 8-46: RPINR42: PERIPHERAL PIN SELECT INPUT REGISTER 42
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PCI13R7 PCI13R6 PCI13R5 PCI13R4 PCI13R3 PCI13R2 PCI13R1 PCI13R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PCI12R7 PCI12R6 PCI12R5 PCI12R4 PCI12R3 PCI12R2 PCI12R1 PCI12R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 PCI13R<7:0>: Assign PWM Input 13 (PCI13) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 PCI12R<7:0>: Assign PWM Input 12 (PCI12) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
2017-2018 Microchip Technology Inc. DS70005349E-page 163
dsPIC33CK256MP508 FAMILY
REGISTER 8-47: RPINR43: PERIPHERAL PIN SELECT INPUT REGISTER 43
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PCI15R7 PCI15R6 PCI15R5 PCI15R4 PCI15R3 PCI15R2 PCI15R1 PCI15R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PCI14R7 PCI14R6 PCI14R5 PCI14R4 PCI14R3 PCI14R2 PCI14R1 PCI14R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 PCI15R<7:0>: Assign PWM Input 15 (PCI15) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 PCI14R<7:0>: Assign PWM Input 14 (PCI14) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
REGISTER 8-48: RPINR44: PERIPHERAL PIN SELECT INPUT REGISTER 44
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SENT1R7 SENT1R6 SENT1R5 SENT1R4 SENT1R3 SENT1R2 SENT1R1 SENT1R0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PCI16R7 PCI16R6 PCI16R5 PCI16R4 PCI16R3 PCI16R2 PCI16R1 PCI16R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 SENT1R<7:0>: Assign SENT1 Input (SENT1) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 PCI16<7:0>: Assign PWM Input 16 (PCI16) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
dsPIC33CK256MP508 FAMILY
DS70005349E-page 164 2017-2018 Microchip Technology Inc.
REGISTER 8-49: RPINR45: PERIPHERAL PIN SELECT INPUT REGISTER 45
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CLCINAR7 CLCINAR6 CLCINAR5 CLCINAR4 CLCINAR3 CLCINAR2 CLCINAR1 CLCINAR0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SENT2R7 SENT2R6 SENT2R5 SENT2R4 SENT2R3 SENT2R2 SENT2R1 SENT2R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 CLCINAR<7:0>: Assign CLC Input A (CLCINA) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 SENT2R<7:0>: Assign SENT2 Input (SENT2) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
REGISTER 8-50: RPINR46: PERIPHERAL PIN SELECT INPUT REGISTER 46
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CLCINCR7 CLCINCR6 CLCINCR5 CLCINCR4 CLCINCR3 CLCINCR2 CLCINCR1 CLCINCR0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CLCINBR7 CLCINBR6 CLCINBR5 CLCINBR4 CLCINBR3 CLCINBR2 CLCINBR1 CLCINBR0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 CLCINCR<7:0>: Assign CLC Input C (CLCINC) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
bit 7-0 CLCINBR<7:0>: Assign CLC Input B (CLCINB) to the Corresponding RPn Pin bits
See Ta bl e 8 - 4 .
2017-2018 Microchip Technology Inc. DS70005349E-page 165
dsPIC33CK256MP508 FAMILY
REGISTER 8-51: RPINR47: PERIPHERAL PIN SELECT INPUT REGISTER 47
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ADCTRGR7 ADCTRGR6 ADCTRGR5 ADCTRGR4 ADCTRGR3 ADCTRGR2 ADCTRGR1 ADCTRGR0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CLCINDR7 CLCINDR6 CLCINDR5 CLCINDR4 CLCINDR3 CLCINDR2 CLCINDR1 CLCINDR0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 ADCTRGR<7:0>: Assign ADC Trigger Input (ADCTRG) to the Corresponding RPn Pin bits
See Tab le 8-4.
bit 7-0 CLCINDR<7:0>: Assign CLC Input D (CLCIND) to the Corresponding RPn Pin bits
See Tab le 8-4.
REGISTER 8-52: RPINR48: PERIPHERAL PIN SELECT INPUT REGISTER 48
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
U1CTSR7 U1CTSR6 U1CTSR5 U1CTSR4 U1CTSR3 U1CTSR2 U1CTSR1 U1CTSR0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
OCFDR7 OCFDR6 OCFDR5 OCFDR4 OCFDR3 OCFDR2 OCFDR1 OCFDR0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 U1CTSR<7:0>: Assign UART1 Clear-to-Send (U1CTS) to the Corresponding RPn Pin bits
See Tab le 8-4.
bit 7-0 OCFDR<7:0>: Assign xCCP Fault D (OCFD) to the Corresponding RPn Pin bits
See Tab le 8-4.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 166 2017-2018 Microchip Technology Inc.
REGISTER 8-53: RPINR49: PERIPHERAL PIN SELECT INPUT REGISTER 49
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
U3CTSR7 U3CTSR6 U3CTSR5 U3CTSR4 U3CTSR3 U3CTSR2 U3CTSR1 U3CTSR0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
U2CTSR7 U2CTSR6 U2CTSR5 U2CTSR4 U2CTSR3 U2CTSR2 U2CTSR1 U2CTSR0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 U3CTSR<7:0>: Assign UART3 Clear-to-Send (U3CTS) to the Corresponding RPn Pin bits
See Tab le 8-4.
bit 7-0 U2CTSR<7:0>: Assign UART2 Clear-to-Send (U2CTS) to the Corresponding RPn Pin bits
See Tab le 8-4.
2017-2018 Microchip Technology Inc. DS70005349E-page 167
dsPIC33CK256MP508 FAMILY
REGISTER 8-54: RPOR0: PERIPHERAL PIN SELECT OUTPUT REGISTER 0
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP33R5 RP33R4 RP33R3 RP33R2 RP33R1 RP33R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP32R5 RP32R4 RP32R3 RP32R2 RP32R1 RP32R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP33R<5:0>: Peripheral Output Function is Assigned to RP33 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP32R<5:0>: Peripheral Output Function is Assigned to RP32 Output Pin bits
(see Table 8-7 for peripheral function numbers)
REGISTER 8-55: RPOR1: PERIPHERAL PIN SELECT OUTPUT REGISTER 1
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP35R5 RP35R4 RP35R3 RP35R2 RP35R1 RP35R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP34R5 RP34R4 RP34R3 RP34R2 RP34R1 RP34R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP35R<5:0>: Peripheral Output Function is Assigned to RP35 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP34R<5:0>: Peripheral Output Function is Assigned to RP34 Output Pin bits
(see Table 8-7 for peripheral function numbers)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 168 2017-2018 Microchip Technology Inc.
REGISTER 8-56: RPOR2: PERIPHERAL PIN SELECT OUTPUT REGISTER 2
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP37R5 RP37R4 RP37R3 RP37R2 RP37R1 RP37R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP36R5 RP36R4 RP36R3 RP36R2 RP36R1 RP36R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP37R<5:0>: Peripheral Output Function is Assigned to RP37 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP36R<5:0>: Peripheral Output Function is Assigned to RP36 Output Pin bits
(see Table 8-7 for peripheral function numbers)
REGISTER 8-57: RPOR3: PERIPHERAL PIN SELECT OUTPUT REGISTER 3
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP39R5 RP39R4 RP39R3 RP39R2 RP39R1 RP39R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP38R5 RP38R5 RP38R5 RP38R5 RP38R5 RP38R5
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP39R<5:0>: Peripheral Output Function is Assigned to RP39 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP38R<5:0>: Peripheral Output Function is Assigned to RP38 Output Pin bits
(see Table 8-7 for peripheral function numbers)
2017-2018 Microchip Technology Inc. DS70005349E-page 169
dsPIC33CK256MP508 FAMILY
REGISTER 8-58: RPOR4: PERIPHERAL PIN SELECT OUTPUT REGISTER 4
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP41R5 RP41R4 RP41R3 RP41R2 RP41R1 RP41R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP40R5 RP40R4 RP40R3 RP40R2 RP40R1 RP40R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP41R<5:0>: Peripheral Output Function is Assigned to RP41 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP40R<5:0>: Peripheral Output Function is Assigned to RP40 Output Pin bits
(see Table 8-7 for peripheral function numbers)
REGISTER 8-59: RPOR5: PERIPHERAL PIN SELECT OUTPUT REGISTER 5
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP43R5 RP43R4 RP43R3 RP43R2 RP43R1 RP43R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP42R5 RP42R4 RP42R3 RP42R2 RP42R1 RP42R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP43R<5:0>: Peripheral Output Function is Assigned to RP43 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP42R<5:0>: Peripheral Output Function is Assigned to RP42 Output Pin bits
(see Table 8-7 for peripheral function numbers)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 170 2017-2018 Microchip Technology Inc.
REGISTER 8-60: RPOR6: PERIPHERAL PIN SELECT OUTPUT REGISTER 6
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP45R5 RP45R4 RP45R3 RP45R2 RP45R1 RP45R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP44R5 RP44R4 RP44R3 RP44R2 RP44R1 RP44R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP45R<5:0>: Peripheral Output Function is Assigned to RP45 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP44R<5:0>: Peripheral Output Function is Assigned to RP44 Output Pin bits
(see Table 8-7 for peripheral function numbers)
REGISTER 8-61: RPOR7: PERIPHERAL PIN SELECT OUTPUT REGISTER 7
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP47R5 RP47R4 RP47R3 RP47R2 RP47R1 RP47R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP46R5 RP46R4 RP46R3 RP46R2 RP46R1 RP46R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP47R<5:0>: Peripheral Output Function is Assigned to RP47 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP46R<5:0>: Peripheral Output Function is Assigned to RP46 Output Pin bits
(see Table 8-7 for peripheral function numbers)
2017-2018 Microchip Technology Inc. DS70005349E-page 171
dsPIC33CK256MP508 FAMILY
REGISTER 8-62: RPOR8: PERIPHERAL PIN SELECT OUTPUT REGISTER 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP49R5 RP49R4 RP49R3 RP49R2 RP49R1 RP49R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP48R5 RP48R4 RP48R3 RP48R2 RP48R1 RP48R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP49R<5:0>: Peripheral Output Function is Assigned to RP49 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP48R<5:0>: Peripheral Output Function is Assigned to RP48 Output Pin bits
(see Table 8-7 for peripheral function numbers)
REGISTER 8-63: RPOR9: PERIPHERAL PIN SELECT OUTPUT REGISTER 9
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP51R5 RP51R4 RP51R3 RP51R2 RP51R1 RP51R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP50R5 RP50R4 RP50R3 RP50R2 RP50R1 RP50R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP51R<5:0>: Peripheral Output Function is Assigned to RP51 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP50R<5:0>: Peripheral Output Function is Assigned to RP50 Output Pin bits
(see Table 8-7 for peripheral function numbers)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 172 2017-2018 Microchip Technology Inc.
REGISTER 8-64: RPOR10: PERIPHERAL PIN SELECT OUTPUT REGISTER 10
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP53R5 RP53R4 RP53R3 RP53R2 RP53R1 RP53R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP52R5 RP52R4 RP52R3 RP52R2 RP52R1 RP52R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP53<5:0>: Peripheral Output Function is Assigned to RP53 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP52R<5:0>: Peripheral Output Function is Assigned to RP52 Output Pin bits
(see Table 8-7 for peripheral function numbers)
REGISTER 8-65: RPOR11: PERIPHERAL PIN SELECT OUTPUT REGISTER 11
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP55R5 RP55R4 RP55R3 RP55R2 RP55R1 RP55R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP54R5 RP54R4 RP54R3 RP54R2 RP54R1 RP54R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP55R<5:0>: Peripheral Output Function is Assigned to RP55 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP54R<5:0>: Peripheral Output Function is Assigned to RP54 Output Pin bits
(see Table 8-7 for peripheral function numbers)
2017-2018 Microchip Technology Inc. DS70005349E-page 173
dsPIC33CK256MP508 FAMILY
REGISTER 8-66: RPOR12: PERIPHERAL PIN SELECT OUTPUT REGISTER 12
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP57R5 RP57R4 RP57R3 RP57R2 RP57R1 RP57R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP56R5 RP56R4 RP56R3 RP56R2 RP56R1 RP56R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP57R<5:0>: Peripheral Output Function is Assigned to RP57 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP56R<5:0>: Peripheral Output Function is Assigned to RP56 Output Pin bits
(see Table 8-7 for peripheral function numbers)
REGISTER 8-67: RPOR13: PERIPHERAL PIN SELECT OUTPUT REGISTER 13
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP59R5 RP59R4 RP59R3 RP59R2 RP59R1 RP59R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP58R5 RP58R4 RP58R3 RP58R2 RP58R1 RP58R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP59R<5:0>: Peripheral Output Function is Assigned to RP59 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP58R<5:0>: Peripheral Output Function is Assigned to RP58 Output Pin bits
(see Table 8-7 for peripheral function numbers)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 174 2017-2018 Microchip Technology Inc.
REGISTER 8-68: RPOR14: PERIPHERAL PIN SELECT OUTPUT REGISTER 14
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP61R5 RP61R4 RP61R3 RP61R2 RP61R1 RP61R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP60R5 RP60R4 RP60R3 RP60R2 RP60R1 RP60R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP61R<5:0>: Peripheral Output Function is Assigned to RP61 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP60R<5:0>: Peripheral Output Function is Assigned to RP60 Output Pin bits
(see Table 8-7 for peripheral function numbers)
REGISTER 8-69: RPOR15: PERIPHERAL PIN SELECT OUTPUT REGISTER 15
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP63R5 RP63R4 RP63R3 RP63R2 RP63R1 RP63R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP62R5 RP62R4 RP62R3 RP62R2 RP62R1 RP62R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP63R<5:0>: Peripheral Output Function is Assigned to RP63 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP62R<5:0>: Peripheral Output Function is Assigned to RP62 Output Pin bits
(see Table 8-7 for peripheral function numbers)
2017-2018 Microchip Technology Inc. DS70005349E-page 175
dsPIC33CK256MP508 FAMILY
REGISTER 8-70: RPOR16: PERIPHERAL PIN SELECT OUTPUT REGISTER 16
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP65R5 RP65R4 RP65R3 RP65R2 RP65R1 RP65R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP64R5 RP64R4 RP64R3 RP64R2 RP64R1 RP64R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP65R<5:0>: Peripheral Output Function is Assigned to RP65 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP64R<5:0>: Peripheral Output Function is Assigned to RP64 Output Pin bits
(see Table 8-7 for peripheral function numbers)
REGISTER 8-71: RPOR17: PERIPHERAL PIN SELECT OUTPUT REGISTER 17
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP67R5 RP67R4 RP67R3 RP67R2 RP67R1 RP67R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP66R5 RP66R4 RP66R3 RP66R2 RP66R1 RP66R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP67R<5:0>: Peripheral Output Function is Assigned to RP67 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP66R<5:0>: Peripheral Output Function is Assigned to RP66 Output Pin bits
(see Table 8-7 for peripheral function numbers)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 176 2017-2018 Microchip Technology Inc.
REGISTER 8-72: RPOR18: PERIPHERAL PIN SELECT OUTPUT REGISTER 18
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP69R5 RP69R4 RP69R3 RP69R2 RP69R1 RP69R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP68R5 RP68R4 RP68R3 RP68R2 RP68R1 RP68R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP69R<5:0>: Peripheral Output Function is Assigned to RP69 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP68R<5:0>: Peripheral Output Function is Assigned to RP68 Output Pin bits
(see Table 8-7 for peripheral function numbers)
REGISTER 8-73: RPOR19: PERIPHERAL PIN SELECT OUTPUT REGISTER 19
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP71R5 RP71R4 RP71R3 RP71R2 RP71R1 RP71R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP70R5 RP70R4 RP70R3 RP70R2 RP70R1 RP70R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP71R<5:0>: Peripheral Output Function is Assigned to RP71 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP70R<5:0>: Peripheral Output Function is Assigned to RP70 Output Pin bits
(see Table 8-7 for peripheral function numbers)
2017-2018 Microchip Technology Inc. DS70005349E-page 177
dsPIC33CK256MP508 FAMILY
REGISTER 8-74: RPOR20: PERIPHERAL PIN SELECT OUTPUT REGISTER 20
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP73R5 RP73R4 RP73R3 RP73R2 RP73R1 RP73R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP72R5 RP72R4 RP72R3 RP72R2 RP72R1 RP72R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP73R<5:0>: Peripheral Output Function is Assigned to RP73 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP72R<5:0>: Peripheral Output Function is Assigned to RP72 Output Pin bits
(see Table 8-7 for peripheral function numbers)
REGISTER 8-75: RPOR21: PERIPHERAL PIN SELECT OUTPUT REGISTER 21
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP75R5 RP75R4 RP75R3 RP75R2 RP75R1 RP75R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP74R5 RP74R4 RP74R3 RP74R2 RP74R1 RP74R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP75R<5:0>: Peripheral Output Function is Assigned to RP75 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP74R<5:0>: Peripheral Output Function is Assigned to RP74 Output Pin bits
(see Table 8-7 for peripheral function numbers)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 178 2017-2018 Microchip Technology Inc.
REGISTER 8-76: RPOR22: PERIPHERAL PIN SELECT OUTPUT REGISTER 22
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP77R5 RP77R4 RP77R3 RP77R2 RP77R1 RP77R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP76R5 RP76R4 RP76R3 RP76R2 RP76R1 RP76R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP77R<5:0>: Peripheral Output Function is Assigned to RP77 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP76R<5:0>: Peripheral Output Function is Assigned to RP76 Output Pin bits
(see Table 8-7 for peripheral function numbers)
REGISTER 8-77: RPOR23: PERIPHERAL PIN SELECT OUTPUT REGISTER 23
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP79R5 RP79R4 RP79R3 RP79R2 RP79R1 RP79R0
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP78R5 RP78R4 RP78R3 RP78R2 RP78R1 RP78R0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP79R<5:0>: Peripheral Output Function is Assigned to RP79 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP78R<5:0>: Peripheral Output Function is Assigned to RP78 Output Pin bits
(see Table 8-7 for peripheral function numbers)
2017-2018 Microchip Technology Inc. DS70005349E-page 179
dsPIC33CK256MP508 FAMILY
REGISTER 8-78: RPOR24: PERIPHERAL PIN SELECT OUTPUT REGISTER 24
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP177R5(1) RP177R4(1) RP177R3(1) RP177R2(1) RP177R1(1) RP177R0(1)
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP176R5(1) RP176R4(1) RP176R3(1) RP176R2(1) RP176R1(1) RP176R0(1)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP177R<5:0>: Peripheral Output Function is Assigned to RP177 Output Pin bits(1)
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP176R<5:0>: Peripheral Output Function is Assigned to RP176 Output Pin bits(1)
(see Table 8-7 for peripheral function numbers)
Note 1: These are virtual output ports.
REGISTER 8-79: RPOR25: PERIPHERAL PIN SELECT OUTPUT REGISTER 25
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP179R5(1) RP179R4(1) RP179R3(1)RP179R2(1)RP179R1(1) RP179R0(1)
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP178R5(1) RP178R4(1)RP178R3(1) RP178R2(1) RP178R1(1)RP178R0(1)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP179R<5:0>: Peripheral Output Function is Assigned to RP179 Output Pin bits(1)
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP178R<5:0>: Peripheral Output Function is Assigned to RP178 Output Pin bits(1)
(see Table 8-7 for peripheral function numbers)
Note 1: These are virtual output ports.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 180 2017-2018 Microchip Technology Inc.
REGISTER 8-80: RPOR26: PERIPHERAL PIN SELECT OUTPUT REGISTER 26
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP181R5(1)RP181R4(1)RP181R3(1)RP181R2(1)RP181R1(1)RP181R0(1)
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— RP180R5(1)RP180R4(1)RP180R3(1)RP180R2(1)RP180R1(1)RP180R0(1)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RP181R<5:0>: Peripheral Output Function is Assigned to RP181 Output Pin bits
(see Table 8-7 for peripheral function numbers)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 RP180R<5:0>: Peripheral Output Function is Assigned to RP180 Output Pin bits
(see Table 8-7 for peripheral function numbers)
Note 1: These are virtual output ports.
2017-2018 Microchip Technology Inc. DS70005349E-page 181
dsPIC33CK256MP508 FAMILY
TABLE 8-13: PPS INPUT CONTROL REGISTERS
Register Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
RPCON — — — — IOLOCK — — — — — — — — — — —
RPINR0 INT1R7 INT1R6 INT1R5 INT1R4 INT1R3 INT1R2 INT1R1 INT1R0 — — — — — — — —
RPINR1 INT3R7 INT3R6 INT3R5 INT3R4 INT3R3 INT3R2 INT3R1 INT3R0 INT2R7 INT2R6 INT2R5 INT2R4 INT2R3 INT2R2 INT2R1 INT2R0
RPINR2 T1CKR7 T1CKR6 T1CKR5 T1CKR4 T1CKR3 T1CKR2 T1CKR1 T1CKR0 — — — — — — — —
RPINR3 ICM1R7 ICM1R6 ICM1R5 ICM1R4 ICM1R3 ICM1R2 ICM1R1 ICM1R0 TCKI1R7 TCKI1R6 TCKI1R5 TCKI1R4 TCKI1R3 TCKI1R2 TCKI1R1 TCKI1R0
RPINR4 ICM2R7 ICM2R6 ICM2R5 ICM2R4 ICM2R3 ICM2R2 ICM2R1 ICM2R0 TCKI2R7 TCKI2R6 TCKI2R5 TCKI2R4 TCKI2R3 TCKI2R2 TCKI2R1 TCKI2R0
RPINR5 ICM3R7 ICM3R6 ICM3R5 ICM3R4 ICM3R3 ICM3R2 ICM3R1 ICM3R0 TCKI3R7 TCKI3R6 TCKI3R5 TCKI3R4 TCKI3R3 TCKI3R2 TCKI3R1 TCKI3R0
RPINR6 ICM4R7 ICM4R6 ICM4R5 ICM4R4 ICM4R3 ICM4R2 ICM4R1 ICM4R0 TCKI4R7 TCKI4R TCKI4R5 TCKI4R4 TCKI4R3 TCKI4R2 TCKI4R1 TCKI4R0
RPINR7 ICM5R7 ICM5R6 ICM5R5 ICM5R4 ICM5R3 ICM5R2 ICM5R1 ICM5R0 TCKI5R7 TCKI5R6 TCKI5R5 TCKI5R4 TCKI5R3 TCKI5R2 TCKI5R1 TCKI5R0
RPINR8 ICM6R7 ICM6R6 ICM6R5 ICM6R4 ICM6R3 ICM6R2 ICM6R1 ICM6R0 TCKI6R7 TCKI6R6 TCKI6R5 TCKI6R4 TCKI6R3 TCKI6R2 TCKI6R1 TCKI6R0
RPINR9 ICM7R7 ICM7R6 ICM7R5 ICM7R4 ICM7R3 ICM7R2 ICM7R1 ICM7R0 TCKI7R7 TCKI7R6 TCKI7R5 TCKI7R4 TCKI7R3 TCKI7R2 TCKI7R1 TCKI7R0
RPINR10 ICM8R7 ICM8R6 ICM8R5 ICM8R4 ICM8R3 ICM8R2 ICM8R1 ICM8R0 TCKI8R7 TCKI8R6 TCKI8R5 TCKI8R4 TCKI8R3 TCKI8R2 TCKI8R1 TCKI8R0
RPINR11 OCFBR7 OCFBR6 OCFBR5 OCFBR4 OCFBR3 OCFBR2 OCFBR1 OCFBR0 OCFAR7 OCFAR6 OCFAR5 OCFAR4 OCFAR3 OCFAR2 OCFAR1 OCFAR0
RPINR12 PCI9R7 PCI9R6 PCI9R5 PCI9R4 PCI9R3 PCI9R2 PCI9R1 PCI9R0 PCI8R7 PCI8R6 PCI8R5 PCI8R4 PCI8R3 PCI8R2 PCI8R1 PCI8R0
RPINR13 PCI11R7 PCI11R6 PCI11R5 PCI11R4 PCI11R3 PCI11R2 PCI11R1 PCI11R0 PCI10R7 PCI10R6 PCI10R5 PCI10R4 PCI10R3 PCI10R2 PCI10R1 PCI10R0
RPINR14 QEIB1R7 QEIB1R6 QEIB1R5 QEIB1R4 QEIB1R3 QEIB1R2 QEIB1R1 QEIB1R0 QEIA1R7 QEIA1R6 QEIA1R5 QEIA1R4 QEIA1R3 QEIA1R2 QEIA1R1 QEIA1R0
RPINR15 QEIHOM1R7 QEIHOM1R6 QEIHOM1R5 QEIHOM1R4 QEIHOM1R3 QEIHOM1R2 QEIHOM1R1 QEIHOM1R0 QEINDX1R7 QEINDX1R6 QEINDX1R5 QEINDX1R4 QEINDX1R3 QEINDX1R2 QEINDX1R1 QEINDX1R0
RPINR16 QEIB2R7 QEIB2R6 QEIB2R5 QEIB2R4 QEIB2R3 QEIB2R2 QEIB2R1 QEIB2R0 QEIA2R7 QEIA2R6 QEIA2R5 QEIA2R4 QEIA2R3 QEIA2R2 QEIA2R1 QEIA2R0
RPINR17 QEIHOM2R7 QEIHOM2R6 QEIHOM2R5 QEIHOM2R4 QEIHOM2R3 QEIHOM2R2 QEIHOM2R1 QEIHOM2R0 QEINDX2R7 QEINDX2R6 QEINDX2R5 QEINDX2R4 QEINDX2R3 QEINDX2R2 QEINDX2R1 QEINDX2R0
RPINR18 U1DSRR7 U1DSRR6 U1DSRR5 U1DSRR4 U1DSRR3 U1DSRR2 U1DSRR1 U1DSRR0 U1RXR7 U1RXR6 U1RXR5 U1RXR4 U1RXR3 U1RXR2 U1RXR1 U1RXR0
RPINR19 U2DSRR7 U2DSRR6 U2DSRR5 U2DSRR4 U2DSRR3 U2DSRR2 U2DSRR1 U2DSRR0 U2RXR7 U2RXR6 U2RXR5 U2RXR4 U2RXR3 U2RXR2 U2RXR1 U2RXR0
RPINR20 SCK1R7 SCK1R6 SCK1R5 SCK1R4 SCK1R3 SCK1R2 SCK1R1 SCK1R0 SDI1R7 SDI1R6 SDI1R5 SDI1R4 SDI1R3 SDI1R2 SDI1R1 SDI1R0
RPINR21 REFOIR7 REFOIR6 REFOIR5 REFOIR4 REFOIR3 REFOIR2 REFOIR1 REFOIR0 SS1R7 SS1R6 SS1R5 SS1R4 SS1R3 SS1R2 SS1R1 SS1R0
RPINR22 SCK2R7 SCK2R6 SCK2R5 SCK2R4 SCK2R3 SCK2R2 SCK2R1 SCK2R0 SDI2R7 SDI2R6 SDI2R5 SDI2R4 SDI2R3 SDI2R2 SDI2R1 SDI2R0
RPINR23 — — — — — — — — SS2R7 SS2R6 SS2R5 SS2R4 SS2R3 SS2R2 SS2R1 SS2R0
RPINR26 — — — — — — — — CAN1RXR7 CAN1RXR6 CAN1RXR5 CAN1RXR4 CAN1RXR3 CAN1RXR2 CAN1RXR1 CAN1RXR0
RPINR27 U3DSRR7 U3DSRR6 U3DSRR5 U3DSRR4 U3DSRR3 U3DSRR2 U3DSRR1 U3DSRR0 U3RXR7 U3RXR6 U3RXR5 U3RXR4 U3RXR3 U3RXR2 U3RXR1 U3RXR0
RPINR29 SCK3R7 SCK3R6 SCK3R5 SCK3R4 SCK3R3 SCK3R2 SCK3R1 SCK3R0 SDI3R7 SDI3R6 SDI3R5 SDI3R4 SDI3R3 SDI3R2 SDI3R1 SDI3R0
RPINR30 — — — — — — — — SS3R7 SS3R6 SS3R5 SS3R4 SS3R3 SS3R2 SS3R1 SS3R0
RPINR32 TCKI9R7 TCKI9R6 TCKI9R5 TCKI9R4 TCKI9R3 TCKI9R2 TCKI9R1 TCKI9R0 — — — — — — — —
RPINR33 — — — — — — — — ICM9R7 ICM9R6 ICM9R5 ICM9R4 ICM9R3 ICM9R2 ICM9R1 ICM9R0
RPINR37 PCI17R7 PCI17R6 PCI17R5 PCI17R4 PCI17R3 PCI17R2 PCI17R1 PCI17R0 OCFCR7 OCFCR6 OCFCR5 OCFCR4 OCFCR3 OCFCR2 OCFCR1 OCFCR0
RPINR38 — — — — — — — — PCI18R7 PCI18R6 PCI18R5 PCI18R4 PCI18R3 PCI18R2 PCI18R1 PCI18R0
RPINR42 PCI13R7 PCI13R6 PCI13R5 PCI13R4 PCI13R3 PCI13R2 PCI13R1 PCI13R0 PCI12R7 PCI12R6 PCI12R5 PCI12R4 PCI12R3 PCI12R2 PCI12R1 PCI12R0
RPINR43 PCI15R7 PCI15R6 PCI15R5 PCI15R4 PCI15R3 PCI15R2 PCI15R1 PCI15R0 PCI14R7 PCI14R6 PCI14R5 PCI14R4 PCI14R3 PCI14R2 PCI14R1 PCI14R0
RPINR44 SENT1R7 SENT1R6 SENT1R5 SENT1R4 SENT1R3 SENT1R2 SENT1R1 SENT1R0 PCI16R7 PCI16R6 PCI16R5 PCI16R4 PCI16R3 PCI16R2 PCI16R1 PCI16R0
RPINR45 CLCINAR7 CLCINAR6 CLCINAR5 CLCINAR4 CLCINAR3 CLCINAR2 CLCINAR1 CLCINAR0 SENT2R7 SENT2R6 SENT2R5 SENT2R4 SENT2R3 SENT2R2 SENT2R1 SENT2R0
RPINR46 CLCINCR7 CLCINCR6 CLCINCR5 CLCINCR4 CLCINCR3 CLCINCR2 CLCINCR1 CLCINCR0 CLCINBR7 CLCINBR6 CLCINBR5 CLCINBR4 CLCINBR3 CLCINBR2 CLCINBR1 CLCINBR0
RPINR47 ADCTRGR7 ADCTRGR6 ADCTRGR5 ADCTRGR4 ADCTRGR3 ADCTRGR2 ADCTRGR1 ADCTRGR0 CLCINDR7 CLCINDR6 CLCINDR5 CLCINDR4 CLCINDR3 CLCINDR2 CLCINDR1 CLCINDR0
RPINR48 U1CTSR7 U1CTSR6 U1CTSR5 U1CTSR4 U1CTSR3 U1CTSR2 U1CTSR1 U1CTSR0 OCFDR7 OCFDR6 OCFDR5 OCFDR4 OCFDR3 OCFDR2 OCFDR1 OCFDR0
RPINR49 U3CTSR7 U3CTSR6 U3CTSR5 U3CTSR4 U3CTSR3 U3CTSR2 U3CTSR1 U3CTSR0 U2CTSR7 U2CTSR6 U2CTSR5 U2CTSR4 U2CTSR3 U2CTSR2 U2CTSR1 U2CTSR0
dsPIC33CK256MP508 FAMILY
DS70005349E-page 182 2017-2018 Microchip Technology Inc.
TABLE 8-14: PPS OUTPUT CONTROL REGISTERS
Register Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
RPOR0 —— RP33R5 RP33R4 RP33R3 RP33R2 RP33R1 RP33R0 —— RP32R5 RP32R4 RP32R3 RP32R2 RP32R1 RP32R0
RPOR1 —— RP35R5 RP35R4 RP35R3 RP35R2 RP35R1 RP35R0 —— RP34R5 RP34R4 RP34R3 RP34R2 RP34R1 RP34R0
RPOR2 —— RP37R5 RP37R4 RP37R3 RP37R2 RP37R1 RP37R0 —— RP36R5 RP36R4 RP36R3 RP36R2 RP36R1 RP36R0
RPOR3 —— RP39R5 RP39R4 RP39R3 RP39R2 RP39R1 RP39R0 —— RP38R5 RP38R4 RP38R3 RP38R2 RP38R1 RP38R0
RPOR4 —— RP41R5 RP41R4 RP41R3 RP41R2 RP41R1 RP41R0 —— RP40R5 RP40R4 RP40R3 RP40R2 RP40R1 RP40R0
RPOR5 —— RP43R5 RP43R4 RP43R3 RP43R2 RP43R1 RP43R0 —— RP42R5 RP42R4 RP42R3 RP42R2 RP42R1 RP42R0
RPOR6 —— RP45R5 RP45R4 RP45R3 RP45R2 RP45R1 RP45R0 —— RP44R5 RP44R4 RP44R3 RP44R2 RP44R1 RP44R0
RPOR7 —— RP47R5 RP47R4 RP47R3 RP47R2 RP47R1 RP47R0 —— RP46R5 RP46R4 RP46R3 RP46R2 RP46R1 RP46R0
RPOR8(1)—— RP49R5 RP49R4 RP49R3 RP49R2 RP49R1 RP49R0 —— RP48R5 RP48R4 RP48R3 RP48R2 RP48R1 RP48R0
RPOR9(1)—— RP51R5 RP51R4 RP51R3 RP51R2 RP51R1 RP51R0 —— RP50R5 RP50R4 RP50R3 RP50R2 RP50R1 RP50R0
RPOR10(1)—— RP53R5 RP53R4 RP53R3 RP53R2 RP53R1 RP53R0 —— RP52R5 RP52R4 RP52R3 RP52R2 RP52R1 RP52R0
RPOR11(1)—— RP55R5 RP55R4 RP55R3 RP55R2 RP55R1 RP55R0 —— RP54R5 RP54R4 RP54R3 RP54R2 RP54R1 RP54R0
RPOR12(1)—— RP57R5 RP57R4 RP57R3 RP57R2 RP57R1 RP57R0 —— RP56R5 RP56R4 RP56R3 RP56R2 RP56R1 RP56R0
RPOR13(1)—— RP59R5 RP59R4 RP59R3 RP59R2 RP59R1 RP59R0 —— RP58R5 RP58R4 RP58R3 RP58R2 RP58R1 RP58R0
RPOR14(1)—— RP61R5 RP61R4 RP61R3 RP61R2 RP61R1 RP61R0 —— RP60R5 RP60R4 RP60R3 RP60R2 RP60R1 RP60R0
RPOR15(1)—— RP63R5 RP63R4 RP63R3 RP63R2 RP63R1 RP63R0 —— RP62R5 RP62R4 RP62R3 RP62R2 RP62R1 RP62R0
RPOR16(1)—— RP65R5 RP65R4 RP65R3 RP65R2 RP65R1 RP65R0 —— RP64R5 RP64R4 RP64R3 RP64R2 RP64R1 RP64R0
RPOR17(1)—— RP67R5 RP67R4 RP67R3 RP67R2 RP67R1 RP67R0 —— RP66R5 RP66R4 RP66R3 RP66R2 RP66R1 RP66R0
RPOR18(1)—— RP69R5 RP69R4 RP69R3 RP69R2 RP69R1 RP69R0 —— RP68R5 RP68R4 RP68R3 RP68R2 RP68R1 RP68R0
RPOR19(1)—— RP71R5 RP71R4 RP71R3 RP71R2 RP71R1 RP71R0 —— RP70R5 RP70R4 RP70R3 RP70R2 RP70R1 RP70R0
RPOR20(1)—— RP73R5 RP73R4 RP73R3 RP73R2 RP73R1 RP73R0 —— RP72R5 RP72R4 RP72R3 RP72R2 RP72R1 RP72R0
RPOR21(1)—— RP75R5 RP75R4 RP75R3 RP75R2 RP75R1 RP75R0 —— RP74R5 RP74R4 RP74R3 RP74R2 RP74R1 RP74R0
RPOR22(1)—— RP77R5 RP77R4 RP77R3 RP77R2 RP77R1 RP77R0 —— RP76R5 RP76R4 RP76R3 RP76R2 RP76R1 RP76R0
RPOR23(1)—— RP79R5 RP79R4 RP79R3 RP79R2 RP79R1 RP79R0 —— RP78R5 RP78R4 RP78R3 RP78R2 RP78R1 RP78R0
RPOR24 —— RP177R5 RP177R4 RP177R3 RP177R2 RP177R1 RP177R0 —— RP176R5 RP176R4 RP176R3 RP176R2 RP176R1 RP176R0
RPOR25 —— RP179R5 RP179R4 RP179R3 RP179R2 RP179R1 RP179R0 —— RP178R5 RP178R4 RP178R3 RP178R2 RP178R1 RP178R0
RPOR26 —— RP181R5 RP181R4 RP181R3 RP181R2 RP181R1 RP181R0 —— RP180R5 RP180R4 RP180R3 RP180R2 RP180R1 RP180R0
Note 1: Availability is dependent on supported I/O ports. Refer to Ta b l e 8 - 1 and Ta b l e 8 - 6 for availability on package variants.
2017-2018 Microchip Technology Inc. DS70005349E-page 183
dsPIC33CK256MP508 FAMILY
9.0 OSCILLATOR WITH
HIGH-FREQUENCY PLL
The dsPIC33CK256MP508 family oscillator with
high-frequency PLL includes these characteristics:
• On-Chip Phase-Locked Loop (PLL) to Boost
Internal Operating Frequency on Select Internal
and External Oscillator Sources
• Auxiliary PLL (APLL) Clock Generator to Boost
Operating Frequency for Peripherals
• Doze mode for System
Power Savings
• Scalable Reference Clock Output (REFCLKO)
• On-the-Fly Clock Switching between Various
Clock Sources
• Fail-Safe Clock Monitoring (FSCM) that Detects
Clock Failure and Permits Safe Application
Recovery or Shutdown
A block diagram of the dsPIC33CK256MP508 oscillator
system is shown in Figure 9-1.
FIGURE 9-1: dsPIC33CK256MP508 CORE CLOCK SOURCES BLOCK DIAGRAM
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a compre-
hensive reference source. To complement
the information in this data sheet, refer to
“Oscillator Module with High-Speed
PLL” (www.microchip.com/DS70005255)
in the “dsPIC33/PIC24 Family Reference
Manual”.
BFRCCLK
FRCCLK
POSCCLK
LPRCCLK
FRC
8MHz
POSC
LPRC
32 kHz
OSCO
OSCI
TUN<5:0>
FCY
FP
FOSC
VCO Outputs
APLL and
REFCLKO
AVCO Outputs
Core Clock
Selection and
PLL/DIV
Subsystem
BFRC
8MHz
dsPIC33CK256MP508 FAMILY
DS70005349E-page 184 2017-2018 Microchip Technology Inc.
FIGURE 9-2: dsPIC33CK256MP508 CORE OSCILLATOR SUBSYSTEM
Note 1: See Figure 9-3 for details of the PLL module.
2: See Figure 9-3 for the source of FVCO.
3: See Figure 9-3 for the source of AVCO.
4: XTPLL, HSPLL, ECPLL, FRCPLL (FPLLO).
5: Clock option for PWM.
6: Clock option for ADC.
7: Clock option for DAC.
FRCCLK
POSCCLK
S1
S3
PLL(1)
REFCLKO
DOZE
FCY
FRCDIVN
FRCDIVN
RODIV<14:0>
÷ N
ROSEL<3:0>
REFI
FVCO/4
BFRC
LPRC
FRC
POSC
FP
FOSC
POSCCLK
FRC
FRCSEL
APLL AFPLLO(5,7)
AFVCO(3)
Auxiliary PLL
S6
FNOSC<2:0>NOSC<2:0>
S2
S1/S3
S0
S7
S6
S5
FOSC
DOZE<2:0>
FP
Reset
Clock Clock
SwitchFail
FRCDIV<2:0>
FRCCLK
FVCO(2)
POSCCLK
FPLLO/2(4)
FRCCLK
BFRCCLK
LPRCCLK
FVCO
FVCODIV
VCODIV<1:0>
FVCO/2(7)
FVCO/3
FVCO/4(6)
AVCO
Divider
AFVCO
AF
VCODIV
(6)
AVCODIV<1:0>
AFVCO/2(5,7)
AFVCO/3
AFVCO/4
÷ 2
No Clock
FVCO
FPLLO
FVCO/2
FVCO/3
FVCO/4
AFVCO
AFVCO/2
AFVCO/3
AFVCO/4
÷ N FCAN
CANCLKSEL<3:0>
CANDIV<6:0>
CAN Clock Generation
AFPLLO
÷ 2
FPLLO(5,7)
VCO
Divider
2017-2018 Microchip Technology Inc. DS70005349E-page 185
dsPIC33CK256MP508 FAMILY
The Primary Oscillator and internal FRC Oscillator
sources can optionally use an on-chip PLL to obtain
higher operating speeds. Figure 9-3 illustrates a block
diagram of the PLL module.
For PLL operation, the following requirements must be
met at all times without exception:
• The PLL Input Frequency (FPLLI) must be in the
range of 8 MHz to 64 MHz
• The PFD Input Frequency (FPFD) must be in the
range of 8 MHz to (FVCO/16) MHz
The VCO Output Frequency (FVCO) must be in the
range of 400 MHz to 1600 MHz
FIGURE 9-3: PLL AND VCO DETAIL
DIV
1-8 PFD Lock
Detect
DIV
1-7
DIV
1-7
Feedback
Divider
16-200
VCO
Divider
FVCO
FVCO
FVCODIV
PLLFBDIV<7:0>
PLLPRE<3:0>
POST1DIV<2:0>
POST2DIV<2:0>
FPLLO(1,3)
PLL Ready
(LOCK)
FRCCLK(4)
POSCCLK
Note 1: Clock option for PWM.
2: Clock option for ADC.
3: Clock option for DAC.
4: PLL source is always FRC unless FNOSC is the Primary Oscillator with PLL.
S1
S3
VCODIV<1:0>
FVCO/2(3)
FVCO/3
FVCO/4(2)
VCO
dsPIC33CK256MP508 FAMILY
DS70005349E-page 186 2017-2018 Microchip Technology Inc.
Equation 9-1 provides the relationship between the
PLL Input Frequency (FPLLI) and VCO Output
Frequency (FVCO).
EQUATION 9-1: FVCO CALCULATION
Equation 9-2 provides the relationship between the PLL
Input Frequency (FPLLI) and PLL Output Frequency
(FPLLO).
EQUATION 9-2: FPLLO CALCULATION
EXAMPLE 9-1: CODE EXAMPLE FOR USING PRIMARY PLL WITH 8 MHz INTERNAL FRC
FVCO = FPLLI = FPLLI PLLFBDIV<7:0>
PLLPRE<3:0>
M
N1
Note: The PLL Phase Detector Input Divider Select (PLLPREx) bits and the PLL Feedback Divider (PLLFBDIVx)
bits should not be changed when operating in PLL mode. Therefore, the user must start in either a non-
PLL mode or clock switch to a non-PLL mode (e.g., internal FRC Oscillator) to make any necessary
changes and then clock switch to the desired PLL mode.
It is not permitted to directly clock switch from one PLL clock source to a different PLL clock source. The
user would need to transition between PLL clock sources with a clock switch to a non-PLL clock source.
Where:
M = PLLFBDIV<7:0>
N1 = PLLPRE<3:0>
N2 = POST1DIV<2:0>
N3 = POST2DIV<2:0>
F
PLLO
= F
PLLI
= F
PLLI
PLLFBDIV
<7:0>
PLLPRE
<3:0>
POST1DIV
<2:0>
POST2DIV
<2:0>
M
N
1
N
2
N
3
//code example for 50 MIPS system clock using 8MHz FRC
// Select FRC on POR
#pragma config FNOSC = FRC // Oscillator Source Selection (Internal Fast RC (FRC))
#pragma config IESO = OFF
// Enable Clock Switching
#pragma config FCKSM = CSECMD
int main()
{
// Configure PLL prescaler, both PLL postscalers, and PLL feedback divider
CLKDIVbits.PLLPRE = 1; // N1=1
PLLFBDbits.PLLFBDIV = 125; // M = 125
PLLDIVbits.POST1DIV = 5; // N2=5
PLLDIVbits.POST2DIV = 1; // N3=1
// Initiate Clock Switch to FRC with PLL (NOSC=0b001)
__builtin_write_OSCCONH(0x01);
__builtin_write_OSCCONL(OSCCON | 0x01);
// Wait for Clock switch to occur
while (OSCCONbits.OSWEN!= 0);
}
2017-2018 Microchip Technology Inc. DS70005349E-page 187
dsPIC33CK256MP508 FAMILY
The dsPIC33CK256MP508 device family implements
an Auxiliary PLL (APLL) module, which is used to
generate various peripheral clock sources independent
of the system clock. Figure 9-4 shows a block diagram
of the APLL module.
For APLL operation, the following requirements must
be met at all times without exception:
• The APLL Input Frequency (AFPLLI) must be in
the range of 8 MHz to 64 MHz
• The APFD Input Frequency (AFPFD) must be in
the range of 8 MHz to (AFVCO/16) MHz
• The AVCO Output Frequency (AFVCO) must be in
the range of 400 MHz to 1600 MHz
FIGURE 9-4: APLL AND VCO DETAIL
DIV
1-8 APFD Lock
Detect AVCO DIV
1-7
DIV
1-7
Feedback
Divider
16-200
FRCSEL AFVCO
APLLFBDIV<7:0>
APLLPRE<3:0>
APOST1DIV<2:0>
APOST2DIV<2:0>
APLL Ready
(APLLCLK)
FRCCLK
POSCCLK
Note 1: Clock option for PWM.
2: Clock option for ADC.
3: Clock option for DAC.
AVCO
Divider
AFVCO
AF
VCODIV
(2)
AVCODIV<1:0>
AFVCO/2(1,3)
AFVCO/3
AFVCO/4
0
1
AFPLLO(1,3)
APLLEN
dsPIC33CK256MP508 FAMILY
DS70005349E-page 188 2017-2018 Microchip Technology Inc.
Equation 9-3 provides the relationship between the
APLL Input Frequency (AFPLLI) and the AVCO Output
Frequency (AFVCO).
EQUATION 9-3: AFVCO CALCULATION
Equation 9-4 provides the relationship between the
APLL Input Frequency (AFPLLI) and APLL Output
Frequency (AFPLLO).
EQUATION 9-4: AFPLLO CALCULATION
EXAMPLE 9-2: CODE EXAMPLE FOR USING AUXILIARY PLL WITH THE INTERNAL FRC
OSCILLATOR
AFVCO = AFPLLI = AFPLLI APLLFBDIV<7:0>
APLLPRE<3:0>
M
N1
Note: Even with the APLLEN bit set, another peripheral must generate a clock request before the APLL will start.
Where:
M = APLLFBDIV<7:0>
N1 = APLLPRE<3:0>
N2 = APOST1DIV<2:0>
N3 = APOST2DIV<2:0>
AF
PLLO
= AF
PLLI
= AF
PLLI
APLLFBDIV
<7:0>
APLLPRE
<3:0>
POST1DIV
<2:0>
POST2DIV
<2:0>
M
N
1
N
2
N
3
//code example for AFVCO = 1 GHz and AFPLLO = 500 MHz using 8 MHz internal FRC
// Configure the source clock for the APLL
ACLKCON1bits.FRCSEL = 1; // Select internal FRC as the clock source
// Configure the APLL prescaler, APLL feedback divider, and both APLL postscalers.
ACLKCON1bits.APLLPRE = 1; // N1 = 1
APLLFBD1bits.APLLFBDIV = 125; // M = 125
APLLDIV1bits.APOST1DIV = 2; // N2 = 2
APLLDIV1bits.APOST2DIV = 1; // N3 = 1
// Enable APLL
ACLKCON1bits.APLLEN = 1;
2017-2018 Microchip Technology Inc. DS70005349E-page 189
dsPIC33CK256MP508 FAMILY
9.1 CPU Clocking
The dsPIC33CK256MP508 devices can be configured to
use any of the following clock configurations:
• Primary Oscillator (POSC) on the OSCI and
OSCO pins
• Internal Fast RC Oscillator (FRC) with optional
clock divider
• Internal Low-Power RC Oscillator (LPRC)
• Primary Oscillator with PLL (ECPLL, HSPLL, XTPLL)
• Internal Fast RC Oscillator with PLL (FRCPLL)
• Backup Internal Fast RC Oscillator (BFRC)
The system clock source is divided by two to produce
the internal instruction cycle clock. In this document,
the instruction cycle clock is denoted by FCY. The
timing diagram in Figure 9-5 illustrates the relationship
between the system clock (FOSC), the instruction cycle
clock (FCY) and the Program Counter (PC).
The internal instruction cycle clock (FCY) can be
output on the OSCO I/O pin if the Primary Oscillator
mode (POSCMD<1:0>) is not configured as HS/XT.
For more information, see Section 9.0 “Oscillator
with High-Frequency PLL”.
FIGURE 9-5: CLOCK AND INSTRUCTION CYCLE TIMING
PC + 2 PC + 4
Fetch INST (PC)
Execute INST (PC – 2) Fetch INST (PC + 2)
Execute INST (PC) Fetch INST (PC + 4)
Execute INST (PC + 2)
TCY
FOSC
FCY
PC PC
dsPIC33CK256MP508 FAMILY
DS70005349E-page 190 2017-2018 Microchip Technology Inc.
9.2 Primary Oscillator (POSC)
The dsPIC33CK256MP508 family devices feature a
Primary Oscillator (POSC) and it is available on the
OSCI and OSCO pins. This connection enables an
external crystal (or ceramic resonator) to provide the
clock to the device. The Primary Oscillator provides
three modes of operation:
• Medium Speed Oscillator (XT Mode):
The XT mode is a Medium Gain, Medium
Frequency mode used to work with crystal
frequencies of 3.5 MHz to 10 MHz.
• High-Speed Oscillator (HS Mode):
The HS mode is a High-Gain, High-Frequency
mode used to work with crystal frequencies of
10 MHz to 32 MHz.
• External Clock Source Operation (EC Mode):
If the on-chip oscillator is not used, the EC mode
allows the internal oscillator to be bypassed. The
device clocks are generated from an external
source (0 MHz to up to 64 MHz) and input on the
OSCI pin.
9.3 Internal Fast RC (FRC) Oscillator
The dsPIC33CK256MP508 family devices contain one
instance of the internal Fast RC (FRC) Oscillator and it
provides a nominal 8 MHz clock without requiring an
external crystal or ceramic resonator, which results in
system cost savings for applications that do not require
a precise clock reference.
The application software can tune the frequency of
the oscillator using the FRC Oscillator Tuning bits
(TUN<5:0>) in the FRC Oscillator Tuning register
(OSCTUN<5:0>).
9.4 Low-Power RC (LPRC) Oscillator
The dsPIC33CK256MP508 family devices contain one
instance of the Low-Power RC (LPRC) Oscillator and it
provides a nominal clock frequency of 32 kHz, and is
the clock source for the Power-up Timer (PWRT),
Watchdog Timer (WDT) and Fail-Safe Clock Monitor
(FSCM) circuits in the clock subsystem.
The LPRC Oscillator is the clock source for the PWRT,
WDT and FSCM. The LPRC Oscillator is enabled at
power-on.
The LPRC Oscillator remains enabled under these
conditions:
• The FSCM is enabled
• The WDT is enabled
• The LPRC Oscillator is selected as the system
clock
If none of these conditions is true, the LPRC Oscillator
shuts off after the PWRT expires. The LPRC Oscillator
is shut off in Sleep mode.
2017-2018 Microchip Technology Inc. DS70005349E-page 191
dsPIC33CK256MP508 FAMILY
Example 9-3 illustrates code for using the PLL
(50 MIPS) with the Primary Oscillator.
EXAMPLE 9-3: CODE EXAMPLE FOR USING PLL (50 MIPS) WITH PRIMARY OSCILLATOR (POSC)
//code example for 50 MIPS system clock using POSC with 10 MHz external crystal
// Select FRC on POR
#pragma
config FNOSC = FRC // Oscillator Source Selection (Internal Fast RC (FRC))
#pragma
config IESO = OFF
/// Enable Clock Switching and Configure POSC in XT mode
#pragma
config POSCMD = XT
#pragma
config FCKSM = CSECMD
int main()
{
// Configure PLL prescaler, both PLL postscalers, and PLL feedback divider
CLKDIVbits.PLLPRE = 1; // N1=1
PLLFBDbits.PLLFBDIV = 100; // M = 100
PLLDIVbits.POST1DIV = 5; // N2=5
PLLDIVbits.POST2DIV = 1; // N3=1
// Initiate Clock Switch to Primary Oscillator with PLL (NOSC=0b011)
__builtin_write_OSCCONH(0x03);
__builtin_write_OSCCONL(OSCCON | 0x01);
// Wait for Clock switch to occur
while (OSCCONbits.OSWEN!= 0);
// Wait for PLL to lock
while (OSCCONbits.LOCK!= 1);
}
dsPIC33CK256MP508 FAMILY
DS70005349E-page 192 2017-2018 Microchip Technology Inc.
9.5 Oscillator Configuration
The oscillator system has both Configuration registers
and SFRs to configure, control and monitor the system.
The FOSCSEL and FOSC Configuration registers
(Register 30-4 and Register 30-5, respectively) are
used for initial setup.
Table 9-1 lists the configuration settings that select the
device’s oscillator source and operating mode at a
Power-on Reset (POR).
9.6 OSCCON Unlock Sequence
The OSCCON register is protected against unintended
writes through a lock mechanism. The upper and lower
bytes of OSCCON have their own unlock sequence,
and both must be used when writing to both bytes of the
register.
Before OSCCON can be written to, the following unlock
sequence must be used:
1. Execute the unlock sequence for the OSCCON
high byte.
In two back-to-back instructions:
• Write 0x78 to OSCCON<15:8>
• Write 0x9A to OSCCON<15:8>
2. In the instruction immediately following the
unlock sequence, the OSCCON<10:8> bits can
be modified.
3. Execute the unlock sequence for the OSCCON
low byte.
In two back-to-back instructions:
• Write 0x46 to OSCCON<7:0>
• Write 0x57 to OSCCON<7:0>
4. In the instruction immediately following the
unlock sequence, the OSCCON<7:0> bits can
be modified.
TABLE 9-1: CONFIGURATION BIT VALUES FOR CLOCK SELECTION
Oscillator
Source Oscillator Mode FNOSC<2:0>
Value
POSCMD<1:0>
Value Notes
S0 Fast RC Oscillator (FRC) 000 xx 1
S1 Fast RC Oscillator with PLL (FRCPLL) 001 xx 1
S2 Primary Oscillator (EC) 010 00 1
S2 Primary Oscillator (XT) 010 01
S2 Primary Oscillator (HS) 010 10
S3 Primary Oscillator with PLL (ECPLL) 011 00 1
S3 Primary Oscillator with PLL (XTPLL) 011 01
S3 Primary Oscillator with PLL (HSPLL) 011 10
S4 Reserved 100 xx
S5 Low-Power RC Oscillator (LPRC) 101 xx 1
S6 Backup FRC (BFRC) 110 xx 1
S7 Fast RC Oscillator with ÷ N Divider
(FRCDIVN)
111 xx 1, 2
Note 1: The OSCO pin function is determined by the OSCIOFNC Configuration bit.
2: This is the default oscillator mode for an unprogrammed (erased) device.
Note: MPLAB® XC16 provides built-in C language
function for unlocking the OSCCON register:
__builtin_write_OSCCONH(value)
__builtin_write_OSCCONL(OSCCON | value)
For more information, see the “MPLAB®
XC16 C Compiler User’s Guide”
(DS50002071).
2017-2018 Microchip Technology Inc. DS70005349E-page 193
dsPIC33CK256MP508 FAMILY
9.7 Oscillator Control Registers
REGISTER 9-1: OSCCON: OSCILLATOR CONTROL REGISTER(1)
U-0 R-0 R-0 R-0 U-0 R/W-y R/W-y R/W-y
— COSC2 COSC1 COSC0 —NOSC2
(2)NOSC1(2)NOSC0(2)
bit 15 bit 8
R/W-0 U-0 R-0 U-0 R/W-0 U-0 U-0 R/W-0
CLKLOCK —LOCK—CF
(3)—— OSWEN
bit 7 bit 0
Legend: y = Value set from Configuration bits on POR
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 COSC<2:0>: Current Oscillator Selection bits (read-only)
111 = Fast RC Oscillator (FRC) with Divide-by-n (FRCDIVN)
110 = Backup FRC (BFRC)
101 = Low-Power RC Oscillator (LPRC)
100 = Reserved – default to FRC
011 = Primary Oscillator (XT, HS, EC) with PLL (XTPLL, HSPLL, ECPLL)
010 = Primary Oscillator (XT, HS, EC)
001 = Fast RC Oscillator (FRC) with PLL (FRCPLL)
000 = Fast RC Oscillator (FRC)
bit 11 Unimplemented: Read as ‘0’
bit 10-8 NOSC<2:0>: New Oscillator Selection bits(2)
111 = Fast RC Oscillator (FRC) with Divide-by-n (FRCDIVN)
110 = Backup FRC (BFRC)
101 = Low-Power RC Oscillator (LPRC)
100 = Reserved – default to FRC
011 = Primary Oscillator (XT, HS, EC) with PLL (XTPLL, HSPLL, ECPLL)
010 = Primary Oscillator (XT, HS, EC)
001 = Fast RC Oscillator (FRC) with PLL (FRCPLL)
000 = Fast RC Oscillator (FRC)
bit 7 CLKLOCK: Clock Lock Enable bit
1 = If (FCKSM0 = 1), then clock and PLL configurations are locked; if (FCKSM0 = 0), then clock and
PLL configurations may be modified
0 = Clock and PLL selections are not locked, configurations may be modified
bit 6 Unimplemented: Read as ‘0’
bit 5 LOCK: PLL Lock Status bit (read-only)
1 = Indicates that PLL is in lock or PLL start-up timer is satisfied
0 = Indicates that PLL is out of lock, start-up timer is in progress or PLL is disabled
bit 4 Unimplemented: Read as ‘0’
Note 1: Writes to this register require an unlock sequence (see Section 9.6 “OSCCON Unlock Sequence”).
2: Direct clock switches between any Primary Oscillator mode with PLL and FRCPLL mode are not permit-
ted. This applies to clock switches in either direction. In these instances, the application must switch to
FRC mode as a transitional clock source between the two PLL modes.
3: This bit should only be cleared in software. Setting the bit in software (= 1) will have the same effect as an
actual oscillator failure and will trigger an oscillator failure trap.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 194 2017-2018 Microchip Technology Inc.
bit 3 CF: Clock Fail Detect bit(3)
1 = FSCM has detected a clock failure
0 = FSCM has not detected a clock failure
bit 2-1 Unimplemented: Read as ‘0’
bit 0 OSWEN: Oscillator Switch Enable bit
1 = Requests oscillator switch to the selection specified by the NOSC<2:0> bits
0 = Oscillator switch is complete
REGISTER 9-1: OSCCON: OSCILLATOR CONTROL REGISTER(1) (CONTINUED)
Note 1: Writes to this register require an unlock sequence (see Section 9.6 “OSCCON Unlock Sequence”).
2: Direct clock switches between any Primary Oscillator mode with PLL and FRCPLL mode are not permit-
ted. This applies to clock switches in either direction. In these instances, the application must switch to
FRC mode as a transitional clock source between the two PLL modes.
3: This bit should only be cleared in software. Setting the bit in software (= 1) will have the same effect as an
actual oscillator failure and will trigger an oscillator failure trap.
2017-2018 Microchip Technology Inc. DS70005349E-page 195
dsPIC33CK256MP508 FAMILY
REGISTER 9-2: CLKDIV: CLOCK DIVIDER REGISTER
R/W-0 R/W-0 R/W-1 R/W-1 R/W-0 R/W-0 R/W-0 R/W-0
ROI DOZE2(1)DOZE1(1)DOZE0(1)DOZEN(2,3)FRCDIV2 FRCDIV1 FRCDIV0
bit 15 bit 8
U-0 U-0 r-0 r-0 R/W-0 R/W-0 R/W-0 R/W-1
———— PLLPRE3(4)PLLPRE2(4)PLLPRE1(4)PLLPRE0(4)
bit 7 bit 0
Legend: r = Reserved bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ROI: Recover on Interrupt bit
1 = Interrupts will clear the DOZEN bit and the processor clock, and the peripheral clock ratio is set to 1:1
0 = Interrupts have no effect on the DOZEN bit
bit 14-12 DOZE<2:0>: Processor Clock Reduction Select bits(1)
111 = FP divided by 128
110 = FP divided by 64
101 = FP divided by 32
100 = FP divided by 16
011 = FP divided by 8 (default)
010 = FP divided by 4
001 = FP divided by 2
000 = FP divided by 1
bit 11 DOZEN: Doze Mode Enable bit(2,3)
1 = DOZE<2:0> field specifies the ratio between the peripheral clocks and the processor clocks
0 = Processor clock and peripheral clock ratio is forced to 1:1
bit 10-8 FRCDIV<2:0>: Internal Fast RC Oscillator Postscaler bits
111 = FRC divided by 256
110 = FRC divided by 64
101 = FRC divided by 32
100 = FRC divided by 16
011 = FRC divided by 8
010 = FRC divided by 4
001 = FRC divided by 2
000 = FRC divided by 1 (default)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-4 Reserved: Read as ‘0’
Note 1: The DOZE<2:0> bits can only be written to when the DOZEN bit is clear. If DOZEN = 1, any writes to
DOZE<2:0> are ignored.
2: This bit is cleared when the ROI bit is set and an interrupt occurs.
3: The DOZEN bit cannot be set if DOZE<2:0> = 000. If DOZE<2:0> = 000, any attempt by user software to
set the DOZEN bit is ignored.
4: PLLPRE<3:0> may be updated while the PLL is operating, but the VCO may overshoot.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 196 2017-2018 Microchip Technology Inc.
bit 3-0 PLLPRE<3:0>: PLL Phase Detector Input Divider Select bits (also denoted as ‘N1’, PLL prescaler)(4)
11111 = Reserved
...
1001 = Reserved
1000 = Input divided by 8
0111 = Input divided by 7
0110 = Input divided by 6
0101 = Input divided by 5
0100 = Input divided by 4
0011 = Input divided by 3
0010 = Input divided by 2
0001 = Input divided by 1 (power-on default selection)
0000 = Reserved
REGISTER 9-2: CLKDIV: CLOCK DIVIDER REGISTER (CONTINUED)
Note 1: The DOZE<2:0> bits can only be written to when the DOZEN bit is clear. If DOZEN = 1, any writes to
DOZE<2:0> are ignored.
2: This bit is cleared when the ROI bit is set and an interrupt occurs.
3: The DOZEN bit cannot be set if DOZE<2:0> = 000. If DOZE<2:0> = 000, any attempt by user software to
set the DOZEN bit is ignored.
4: PLLPRE<3:0> may be updated while the PLL is operating, but the VCO may overshoot.
2017-2018 Microchip Technology Inc. DS70005349E-page 197
dsPIC33CK256MP508 FAMILY
REGISTER 9-3: PLLFBD: PLL FEEDBACK DIVIDER REGISTER
U-0 U-0 U-0 U-0 r-0 r-0 r-0 r-0
— — — — — — — —
bit 15 bit 8
R/W-1 R/W-0 R/W-0 R/W-1 R/W-0 R/W-1 R/W-1 R/W-0
PLLFBDIV<7:0>
bit 7 bit 0
Legend: r = Reserved bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 Unimplemented: Read as ‘0’
bit 11-8 Reserved: Maintain as ‘0’
bit 7-0 PLLFBDIV<7:0>: PLL Feedback Divider bits (also denoted as ‘M’, PLL multiplier)
11111111 = Reserved
...
11001000 = 200 Maximum(1)
...
10010110 = 150 (default)
...
00010000 = 16 Minimum(1)
...
00000010 = Reserved
00000001 = Reserved
00000000 = Reserved
Note 1: The allowed range is 16-200 (decimal). The rest of the values are reserved and should be avoided. The
power on the default feedback divider is 150 (decimal) with an 8 MHz FRC input clock. The VCO
frequency is 1.2 GHz.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 198 2017-2018 Microchip Technology Inc.
REGISTER 9-4: OSCTUN: FRC OSCILLATOR TUNING REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
——TUN<5:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-6 Unimplemented: Read as ‘0’
bit 5-0 TUN<5:0>: FRC Oscillator Tuning bits
011111 = Maximum frequency deviation of 1.45% (MHz)
011110 = Center frequency + 1.40% (MHz)
...
000001 = Center frequency + 0.047% (MHz)
000000 = Center frequency (8.00 MHz nominal)
111111 = Center frequency – 0.047% (MHz)
...
100001 = Center frequency – 1.45% (MHz)
100000 = Minimum frequency deviation of -1.50% (MHz)
2017-2018 Microchip Technology Inc. DS70005349E-page 199
dsPIC33CK256MP508 FAMILY
REGISTER 9-5: PLLDIV: PLL OUTPUT DIVIDER REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — — VCODIV1 VCODIV0
bit 15 bit 8
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-1
—
POST1DIV2
(1,2)
POST1DIV1
(1,2)
POST1DIV0
(1,2)
—POST2DIV2
(1,2)
POST2DIV1
(1,2)
POST2DIV0
(1,2)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9-8 VCODIV<1:0>: PLL VCO Output Divider Select bits
11 = FVCO
10 = FVCO/2
01 = FVCO/3
00 = FVCO/4
bit 7 Unimplemented: Read as ‘0’
bit 6-4 POST1DIV<2:0>: PLL Output Divider #1 Ratio bits(1,2)
POST1DIV<2:0> can have a valid value, from 1 to 7 (POST1DIVx value should be greater than or equal to
the POST2DIVx value). The POST1DIVx divider is designed to operate at higher clock rates than the
POST2DIVx divider.
bit 3 Unimplemented: Read as ‘0’
bit 2-0 POST2DIV<2:0>: PLL Output Divider #2 Ratio bits(1,2)
POST2DIV<2:0> can have a valid value, from 1 to 7 (POST2DIVx value should be less than or equal to the
POST1DIVx value). The POST1DIVx divider is designed to operate at higher clock rates than the
POST2DIVx divider.
Note 1: The POST1DIVx and POST2DIVx divider values must not be changed while the PLL is operating.
2: The default values for POST1DIVx and POST2DIVx are 4 and 1, respectively, yielding a 150 MHz system
source clock.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 200 2017-2018 Microchip Technology Inc.
REGISTER 9-6: ACLKCON1: AUXILIARY CLOCK CONTROL REGISTER
R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0 R/W-0
APLLEN(1)APLLCK — — — — — FRCSEL
bit 15 bit 8
U-0 U-0 r-0 r-0 R/W-0 R/W-0 R/W-0 R/W-1
———— APLLPRE3 APLLPRE2 APLLPRE1 APLLPRE0
bit 7 bit 0
Legend: r = Reserved bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 APLLEN: Auxiliary PLL Enable/Bypass select bit(1)
1 =AFPLLO is connected to the APLL post-divider output (bypass disabled)
0 =AF
PLLO is connected to the APLL input clock (bypass enabled)
bit 14 APLLCK: APLL Phase-Locked State Status bit
1 = Auxiliary PLL is in lock
0 = Auxiliary PLL is not in lock
bit 13-9 Unimplemented: Read as ‘0’
bit 8 FRCSEL: FRC Clock Source Select bit
1 = FRC is the clock source for APLL
0 = Primary Oscillator is the clock source for APLL
bit 7-6 Unimplemented: Read as ‘0’
bit 5-4 Reserved: Maintain as ‘0’
bit 3-0 APLLPRE<3:0>: Auxiliary PLL Phase Detector Input Divider bits
1111 = Reserved
...
1001 = Reserved
1000 = Input divided by 8
0111 = Input divided by 7
0110 = Input divided by 6
0101 = Input divided by 5
0100 = Input divided by 4
0011 = Input divided by 3
0010 = Input divided by 2
0001 = Input divided by 1 (power-on default selection)
0000 = Reserved
Note 1: Even with the APLLEN bit set, another peripheral must generate a clock request before the APLL will start.
2017-2018 Microchip Technology Inc. DS70005349E-page 201
dsPIC33CK256MP508 FAMILY
REGISTER 9-7: APLLFBD1: APLL FEEDBACK DIVIDER REGISTER
U-0 U-0 U-0 U-0 r-0 r-0 r-0 r-0
— — — — — — — —
bit 15 bit 8
R/W-1 R/W-0 R/W-0 R/W-1 R/W-0 R/W-1 R/W-1 R/W-0
APLLFBDIV<7:0>
bit 7 bit 0
Legend: r = Reserved bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 Unimplemented: Read as ‘0’
bit 11-8 Reserved: Maintain as ‘0’
bit 7-0 APLLFBDIV<7:0>: APLL Feedback Divider bits
11111111 = Reserved
...
11001000 = 200 maximum(1)
...
10010110 = 150 (default)
...
00010000 = 16 minimum(1)
...
00000010 = Reserved
00000001 = Reserved
00000000 = Reserved
Note 1: The allowed range is 16-200 (decimal). The rest of the values are reserved and should be avoided. The
power-on default feedback divider is 150 (decimal) with an 8 MHz FRC input clock; the VCO frequency is
1.2 GHz.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 202 2017-2018 Microchip Technology Inc.
REGISTER 9-8: APLLDIV1: APLL OUTPUT DIVIDER REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — — AVCODIV<1:0>
bit 15 bit 8
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-1
— APOST1DIV<2:0>(1,2)— APOST2DIV<2:0>(1,2)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9-8 AVCODIV<1:0>: APLL VCO Output Divider Select bits
11 = AFVCO
10 = AFVCO/2
01 = AFVCO/3
00 = AFVCO/4
bit 7 Unimplemented: Read as ‘0’
bit 6-4 APOST1DIV<2:0>: APLL Output Divider #1 Ratio bits(1,2)
APOST1DIV<2:0> can have a valid value, from 1 to 7 (the APOST1DIVx value should be greater than
or equal to the APOST2DIVx value). The APOST1DIVx divider is designed to operate at higher clock
rates than the APOST2DIVx divider.
bit 3 Unimplemented: Read as ‘0’
bit 2-0 APOST2DIV<2:0>: APLL Output Divider #2 Ratio bits(1,2)
APOST2DIV<2:0> can have a valid value, from 1 to 7 (the APOST2DIVx value should be less than or
equal to the APOST1DIVx value). The APOST1DIVx divider is designed to operate at higher clock
rates than the APOST2DIVx divider.
Note 1: The APOST1DIVx and APOST2DIVx values must not be changed while the PLL is operating.
2: The default values for APOST1DIVx and APOST2DIVx are 4 and 1, respectively, yielding a 150 MHz
system source clock.
2017-2018 Microchip Technology Inc. DS70005349E-page 203
dsPIC33CK256MP508 FAMILY
REGISTER 9-9: CANCLKCON: CAN CLOCK CONTROL REGISTER
R/W-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
CANCLKEN ——— CANCLKSEL<3:0>(1)
bit 15 bit 8
U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— CANCLKDIV<6:0>(2,3)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 CANCLKEN: Enables the CAN Clock Generator bit
1 = CAN clock generation circuitry is enabled
0 = CAN clock generation circuitry is disabled
bit 14-12 Unimplemented: Read as ‘0’
bit 11-8 CANCLKSEL<3:0>: CAN Clock Source Select bits(1)
1011-1111 = Reserved (no clock selected)
1010 = AFVCO/4
1001 = AFVCO/3
1000 = AFVCO/2
0111 = AFVCO
0110 = AFPLLO
0101 = FVCO/4
0100 = FVCO/3
0011 = FVCO/2
0010 = FPLLO
0001 = FVCO
0000 = 0 (no clock selected)
bit 7 Unimplemented: Read as ‘0’
bit 6-0 CANCLKDIV<6:0>: CAN Clock Divider Select bits(2,3)
1111111 = Divide-by-128
...
0000010 = Divide-by-3
0000001 = Divide-by-2
0000000 = Divide-by-1
Note 1: The user must ensure the input clock source is 640 MHz or less. Operation with input reference frequency
above 640 MHz will result in unpredictable behavior.
2: The CANCLKDIVx divider value must not be changed during CAN module operation.
3: The user must ensure the maximum clock output frequency of the divider is 80 MHz or less.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 204 2017-2018 Microchip Technology Inc.
REGISTER 9-10: REFOCONL: REFERENCE CLOCK CONTROL LOW REGISTER
R/W-0 U-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0, HC R-0, HSC
ROEN — ROSIDL ROOUT ROSLP — ROSWEN ROACTIV
bit 15 bit 8
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — — ROSEL3 ROSEL2 ROSEL1 ROSEL0
bit 7 bit 0
Legend: HC = Hardware Clearable bit HSC = Hardware Settable/Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ROEN: Reference Clock Enable bit
1 = Reference Oscillator is enabled on the REFCLKO pin
0 = Reference Oscillator is disabled
bit 14 Unimplemented: Read as ‘0’
bit 13 ROSIDL: Reference Clock Stop in Idle bit
1 = Reference Oscillator continues to run in Idle mode
0 = Reference Oscillator is disabled in Idle mode
bit 12 ROOUT: Reference Clock Output Enable bit
1 = Reference clock external output is enabled and available on the REFCLKO pin
0 = Reference clock external output is disabled
bit 11 ROSLP: Reference Clock Stop in Sleep bit
1 = Reference Oscillator continues to run in Sleep modes
0 = Reference Oscillator is disabled in Sleep modes
bit 10 Unimplemented: Read as ‘0’
bit 9 ROSWEN: Reference Clock Output Enable bit
1 = Clock divider change (requested by changes to RODIVx) is requested or is in progress (set in
software, cleared by hardware upon completion)
0 = Clock divider change has completed or is not pending
bit 8 ROACTIV: Reference Clock Status bit
1 = Reference clock is active; do not change clock source
0 = Reference clock is stopped; clock source and configuration may be safely changed
bit 7-4 Unimplemented: Read as ‘0’
bit 3-0 ROSEL<3:0>: Reference Clock Source Select bits
1111 = Reserved
... = Reserved
1000 = Reserved
0111 = REFI pin
0110 = FVCO/4
0101 = BFRC
0100 = LPRC
0011 = FRC
0010 = Primary Oscillator
0001 = Peripheral clock (FP)
0000 = System clock (FOSC)
2017-2018 Microchip Technology Inc. DS70005349E-page 205
dsPIC33CK256MP508 FAMILY
REGISTER 9-11: REFOCONH: REFERENCE CLOCK CONTROL HIGH REGISTER
U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—RODIV<14:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
RODIV<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-0 RODIV<14:0>: Reference Clock Integer Divider Select bits
Divider for the selected input clock source is two times the selected value.
111 1111 1111 1111 = Base clock value divided by 65,534 (2 * 7FFFh)
111 1111 1111 1110 = Base clock value divided by 65,532 (2 * 7FFEh)
111 1111 1111 1101 = Base clock value divided by 65,530 (2 * 7FFDh)
...
000 0000 0000 0010 = Base clock value divided by 4 (2 * 2)
000 0000 0000 0001 = Base clock value divided by 2 (2 * 1)
000 0000 0000 0000 = Base clock value
dsPIC33CK256MP508 FAMILY
DS70005349E-page 206 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 207
dsPIC33CK256MP508 FAMILY
10.0 DIRECT MEMORY ACCESS
(DMA) CONTROLLER
The Direct Memory Access (DMA) Controller is
designed to service high data throughput peripherals
operating on the SFR bus, allowing them to access
data memory directly and alleviating the need for
CPU-intensive management. By allowing these
data-intensive peripherals to share their own data path,
the main data bus is also deloaded, resulting in
additional power savings.
The DMA Controller functions both as a peripheral and
a direct extension of the CPU. It is located on the
microcontroller data bus, between the CPU and
DMA-enabled peripherals, with direct access to SRAM.
This partitions the SFR bus into two buses, allowing the
DMA Controller access to the DMA-capable peripherals
located on the new DMA SFR bus. The controller serves
as a Master device on the DMA SFR bus, controlling
data flow from DMA-capable peripherals.
The controller also monitors CPU instruction process-
ing directly, allowing it to be aware of when the CPU
requires access to peripherals on the DMA bus and
automatically relinquishing control to the CPU as
needed. This increases the effective bandwidth for
handling data without DMA operations, causing a
processor Stall. This makes the controller essentially
transparent to the user.
The DMA Controller has these features:
• Four Independently Programmable Channels
• Concurrent Operation with the CPU (no DMA
caused Wait states)
• DMA Bus Arbitration
• Five Programmable Address modes
• Four Programmable Transfer modes
• Four Flexible Internal Data Transfer modes
• Byte or Word Support for Data Transfer
• 16-Bit Source and Destination Address Register
for each Channel, Dynamically Updated and
Reloadable
• 16-Bit Transaction Count Register, Dynamically
Updated and Reloadable
• Upper and Lower Address Limit Registers
• Counter Half-Full Level Interrupt
• Software Triggered Transfer
• Null Write mode for Symmetric Buffer Operations
A simplified block diagram of the DMA Controller is
shown if Figure 10-1.
Note 1: This data sheet summarizes the features of
this group of dsPIC33 devices. It is not
intended to be a comprehensive reference
source. For more information, refer to
“Direct Memory Access Controller
(DMA)” (www.microchip.com/DS39742) in
the “dsPIC33/PIC24 Family Reference
Manual”.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 208 2017-2018 Microchip Technology Inc.
FIGURE 10-1: DMA FUNCTIONAL BLOCK DIAGRAM
To I/O Ports To DMA-Enabled
Peripherals
and Peripherals
DMACH0
DMAINT0
DMASRC0
DMADST0
DMACNT0
DMACH1
DMAINT1
DMASRC1
DMADST1
DMACNT1
DMACH2
DMAINT2
DMASRC2
DMADST2
DMACNT2
DMACH3
DMAINT3
DMASRC3
DMADST3
DMACNT3
DMACON
DMAH
DMAL
DMABUF
Channel 0 Channel 1 Channel 2 Channel 3
Data RAM
Address Generation
Data RAM
Data
Bus
CPU Execution Monitoring
Control
Logic
2017-2018 Microchip Technology Inc. DS70005349E-page 209
dsPIC33CK256MP508 FAMILY
10.1 Summary of DMA Operations
The DMA Controller is capable of moving data between
addresses according to a number of different para-
meters. Each of these parameters can be independently
configured for any transaction. In addition, any or all of
the DMA channels can independently perform a different
transaction at the same time. Transactions are classified
by these parameters:
• Source and destination (SFRs and data RAM)
• Data size (byte or word)
• Trigger source
• Transfer mode (One-Shot, Repeated or
Continuous)
• Addressing modes (Fixed Address or
Address Blocks with or without Address
Increment/Decrement)
In addition, the DMA Controller provides channel priority
arbitration for all channels.
10.1.1 SOURCE AND DESTINATION
Using the DMA Controller, data may be moved between
any two addresses in the Data Space. The SFR space
(0000h to 0FFFh) or the data RAM space (1000h to
4FFFh) can serve as either the source or the destination.
Data can be moved between these areas in either
direction or between addresses in either area. The four
different combinations are shown in Figure 10-2.
If it is necessary to protect areas of data RAM, the DMA
Controller allows the user to set upper and lower address
boundaries for operations in the Data Space above the
SFR space. The boundaries are set by the DMAH and
DMAL Limit registers. If a DMA channel attempts an
operation outside of the address boundaries, the
transaction is terminated and an interrupt is generated.
10.1.2 DATA SIZE
The DMA Controller can handle both 8-bit and 16-bit
transactions. Size is user-selectable using the SIZE bit
(DMACHn<1>). By default, each channel is configured
for word-size transactions. When byte-size transac-
tions are chosen, the LSB of the source and/or
destination address determines if the data represents
the upper or lower byte of the data RAM location.
10.1.3 TRIGGER SOURCE
The DMA Controller can use 82 of the device’s interrupt
sources to initiate a transaction. The DMA trigger
sources occur in reverse order from their natural
interrupt priority and are shown in Table 10-1.
Since the source and destination addresses for any
transaction can be programmed independently of the
trigger source, the DMA Controller can use any trigger
to perform an operation on any peripheral. This also
allows DMA channels to be cascaded to perform more
complex transfer operations.
10.1.4 TRANSFER MODE
The DMA Controller supports four types of data
transfers, based on the volume of data to be moved for
each trigger.
• One-Shot: A single transaction occurs for each
trigger.
• Continuous: A series of back-to-back transactions
occur for each trigger; the number of transactions is
determined by the DMACNTn transaction counter.
• Repeated One-Shot: A single transaction is per-
formed repeatedly, once per trigger, until the DMA
channel is disabled.
• Repeated Continuous: A series of transactions
are performed repeatedly, one cycle per trigger,
until the DMA channel is disabled.
All transfer modes allow the option to have the source
and destination addresses, and counter value,
automatically reloaded after the completion of a
transaction.
10.1.5 ADDRESSING MODES
The DMA Controller also supports transfers between
single addresses or address ranges. The four basic
options are:
• Fixed-to-Fixed: Between two constant addresses
• Fixed-to-Block: From a constant source address
to a range of destination addresses
• Block-to-Fixed: From a range of source addresses
to a single, constant destination address
• Block-to-Block: From a range of source
addresses to a range of destination addresses
The option to select auto-increment or auto-decrement
of source and/or destination addresses is available for
Block Addressing modes.
In addition to the four basic modes, the DMA Controller
also supports Peripheral Indirect Addressing (PIA)
mode, where the source or destination address is gen-
erated jointly by the DMA Controller and a PIA-capable
peripheral. When enabled, the DMA channel provides
a base source and/or destination address, while the
peripheral provides a fixed range offset address.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 210 2017-2018 Microchip Technology Inc.
FIGURE 10-2: TYPES OF DMA DATA TRANSFERS
SFR Area
Data RAM
DMA RAM Area
SFR Area
Data RAM
DMA RAM Area
SFR Area
Data RAM
SFR Area
Data RAM
0FFFh
1000h
DMASRCn
DMADSTn
DMA RAM Area
DMAL
DMAH
0FFFh
1000h
DMASRCn
DMADSTn
DMAL
DMAH
0FFFh
1000h
DMASRCn
DMADSTn
0FFFh
1000h
DMASRCn
DMADSTn
DMAL
DMAH
Peripheral to Memory Memory to Peripheral
Peripheral to Peripheral Memory to Memory
Note: Relative sizes of memory areas are not shown to scale.
2017-2018 Microchip Technology Inc. DS70005349E-page 211
dsPIC33CK256MP508 FAMILY
10.1.6 CHANNEL PRIORITY
Each DMA channel functions independently of the
others, but also competes with the others for access to
the data and DMA buses. When access collisions
occur, the DMA Controller arbitrates between the
channels using a user-selectable priority scheme. Two
schemes are available:
• Round Robin: When two or more channels collide,
the lower numbered channel receives priority on
the first collision. On subsequent collisions, the
higher numbered channels each receive priority
based on their channel number.
• Fixed: When two or more channels collide, the
lowest numbered channel always receives
priority, regardless of past history; however, any
channel being actively processed is not available
for an immediate retrigger. If a higher priority
channel is continually requesting service, it will be
scheduled for service after the next lower priority
channel with a pending request.
10.2 Typical Setup
To set up a DMA channel for a basic data transfer:
1. Enable the DMA Controller (DMAEN = 1) and
select an appropriate channel priority scheme
by setting or clearing PRSSEL.
2. Program DMAH and DMAL with appropriate
upper and lower address boundaries for data
RAM operations.
3. Select the DMA channel to be used and disable
its operation (CHEN = 0).
4. Program the appropriate source and destination
addresses for the transaction into the channel’s
DMASRCn and DMADSTn registers. For PIA
mode addressing, use the base address value.
5. Program the DMACNTn register for the number
of triggers per transfer (One-Shot or Continuous
modes) or the number of words (bytes) to be
transferred (Repeated modes).
6. Set or clear the SIZE bit to select the data size.
7. Program the TRMODE<1:0> bits to select the
Data Transfer mode.
8. Program the SAMODE<1:0> and DAMODE<1:0>
bits to select the addressing mode.
9. Enable the DMA channel by setting CHEN.
10. Enable the trigger source interrupt.
10.3 Peripheral Module Disable
The channels of the DMA Controller can be individually
powered down using the Peripheral Module Disable
(PMD) registers.
10.4 Registers
The DMA Controller uses a number of registers to con-
trol its operation. The number of registers depends on
the number of channels implemented for a particular
device.
There are always four module-level registers (one
control and three buffer/address):
• DMACON: DMA Engine Control Register
(Register 10-1)
• DMAH and DMAL: DMA High and Low Address
Limit Registers
• DMABUF: DMA Transfer Data Buffer
Each of the DMA channels implements five registers
(two control and three buffer/address):
• DMACHn: DMA Channel n Control Register
(Register 10-2)
• DMAINTn: DMA Channel n Interrupt Register
(Register 10-3)
• DMASRCn: DMA Data Source Address Pointer
for Channel n Register
• DMADSTn: DMA Data Destination Source for
Channel n Register
• DMACNTn: DMA Transaction Counter for
Channel n Register
For dsPIC33CK256MP508 devices, there are a total of
34 registers.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 212 2017-2018 Microchip Technology Inc.
REGISTER 10-1: DMACON: DMA ENGINE CONTROL REGISTER
R/W-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0
DMAEN —DMASIDL— — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0
— — — — — — — PRSSEL
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 DMAEN: DMA Module Enable bit
1 = Enables module
0 = Disables module and terminates all active DMA operation(s)
bit 14 Unimplemented: Read as ‘0’
bit 13 DMASIDL: DMA Stop in Idle bit
1 = DMA continues to run in Idle mode
0 = DMA is disabled in Idle mode
bit 12-1 Unimplemented: Read as ‘0’
bit 0 PRSSEL: Channel Priority Scheme Selection bit
1 = Round robin scheme
0 = Fixed priority scheme
2017-2018 Microchip Technology Inc. DS70005349E-page 213
dsPIC33CK256MP508 FAMILY
REGISTER 10-2: DMACHn: DMA CHANNEL n CONTROL REGISTER
U-0 U-0 U-0 r-0 U-0 R/W-0 R/W-0 R/W-0
— — — — — NULLW RELOAD(1)CHREQ(3)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SAMODE1 SAMODE0 DAMODE1 DAMODE0 TRMODE1 TRMODE0 SIZE CHEN
bit 7 bit 0
Legend: r = Reserved bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12 Reserved: Maintain as ‘0’
bit 11 Unimplemented: Read as ‘0’
bit 10 NULLW: Null Write Mode bit
1 = A dummy write is initiated to DMASRCn for every write to DMADSTn
0 = No dummy write is initiated
bit 9 RELOAD: Address and Count Reload bit(1)
1 = DMASRCn, DMADSTn and DMACNTn registers are reloaded to their previous values upon the
start of the next operation
0 = DMASRCn, DMADSTn and DMACNTn are not reloaded on the start of the next operation(2)
bit 8 CHREQ: DMA Channel Software Request bit(3)
1 = A DMA request is initiated by software; automatically cleared upon completion of a DMA transfer
0 = No DMA request is pending
bit 7-6 SAMODE<1:0>: Source Address Mode Selection bits
11 = DMASRCn is used in Peripheral Indirect Addressing and remains unchanged
10 = DMASRCn is decremented based on the SIZE bit after a transfer completion
01 = DMASRCn is incremented based on the SIZE bit after a transfer completion
00 = DMASRCn remains unchanged after a transfer completion
bit 5-4 DAMODE<1:0>: Destination Address Mode Selection bits
11 = DMADSTn is used in Peripheral Indirect Addressing and remains unchanged
10 = DMADSTn is decremented based on the SIZE bit after a transfer completion
01 = DMADSTn is incremented based on the SIZE bit after a transfer completion
00 = DMADSTn remains unchanged after a transfer completion
bit 3-2 TRMODE<1:0>: Transfer Mode Selection bits
11 = Repeated Continuous
10 = Continuous
01 = Repeated One-Shot
00 = One-Shot
bit 1 SIZE: Data Size Selection bit
1 = Byte (8-bit)
0 = Word (16-bit)
bit 0 CHEN: DMA Channel Enable bit
1 = The corresponding channel is enabled
0 = The corresponding channel is disabled
Note 1: Only the original DMACNTn is required to be stored to recover the original DMASRCn and DMADSTn values.
2: DMACNTn will always be reloaded in Repeated mode transfers, regardless of the state of the RELOAD bit.
3: The number of transfers executed while CHREQ is set depends on the configuration of TRMODE<1:0>.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 214 2017-2018 Microchip Technology Inc.
REGISTER 10-3: DMAINTn: DMA CHANNEL n INTERRUPT REGISTER
R-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DBUFWF(1)CHSEL6 CHSEL5 CHSEL4 CHSEL3 CHSEL2 CHSEL1 CHSEL0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-0
HIGHIF(1,2)LOWIF(1,2)DONEIF(1)HALFIF(1)OVRUNIF(1)——HALFEN
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 DBUFWF: DMA Buffered Data Write Flag bit(1)
1 = The content of the DMA buffer has not been written to the location specified in DMADSTn or
DMASRCn in Null Write mode
0 = The content of the DMA buffer has been written to the location specified in DMADSTn or
DMASRCn in Null Write mode
bit 14-8 CHSEL<6:0>: DMA Channel Trigger Selection bits
See Table 1 0- 1 for a complete list.
bit 7 HIGHIF: DMA High Address Limit Interrupt Flag bit(1,2)
1 = The DMA channel has attempted to access an address higher than DMAH or the upper limit of the
data RAM space
0 = The DMA channel has not invoked the high address limit interrupt
bit 6 LOWIF: DMA Low Address Limit Interrupt Flag bit(1,2)
1 = The DMA channel has attempted to access the DMA SFR address lower than DMAL, but above
the SFR range (07FFh)
0 = The DMA channel has not invoked the low address limit interrupt
bit 5 DONEIF: DMA Complete Operation Interrupt Flag bit(1)
If CHEN = 1:
1 = The previous DMA session has ended with completion
0 = The current DMA session has not yet completed
If CHEN = 0:
1 = The previous DMA session has ended with completion
0 = The previous DMA session has ended without completion
bit 4 HALFIF: DMA 50% Watermark Level Interrupt Flag bit(1)
1 = DMACNTn has reached the halfway point to 0000h
0 = DMACNTn has not reached the halfway point
bit 3 OVRUNIF: DMA Channel Overrun Flag bit(1)
1 = The DMA channel is triggered while it is still completing the operation based on the previous trigger
0 = The overrun condition has not occurred
bit 2-1 Unimplemented: Read as ‘0’
bit 0 HALFEN: Halfway Completion Watermark bit
1 = Interrupts are invoked when DMACNTn has reached its halfway point and at completion
0 = An interrupt is invoked only at the completion of the transfer
Note 1: Setting these flags in software does not generate an interrupt.
2: Testing for address limit violations (DMASRCn or DMADSTn is either greater than DMAH or less than
DMAL) is NOT done before the actual access.
2017-2018 Microchip Technology Inc. DS70005349E-page 215
dsPIC33CK256MP508 FAMILY
TABLE 10-1: DMA CHANNEL TRIGGER SOURCES
CHSEL<6:0> Trigger (Interrupt) CHSEL<6:0> Trigger (Interrupt) CHSEL<6:0> Trigger (Interrupt)
0000000
00h INT0 – External Interrupt 0
0100011
23h PWM Generator 8
1000100
44h CLC1 Positive Edge Interrupt
0000001
01h SCCP1 Interrupt
0100100
24h PWM Event C
1000101
45h CLC2 Positive Edge Interrupt
0000010
02h SPI1 Receiver
0100101
25h SENT1 TX/RX
1000110
46h SPI1 – Fault Interrupt
0000011
03h SPI1 Transmitter
0100110
26h SENT2 TX/RX
1000111
47h SPI2 – Fault Interrupt
0000100
04h UART1 Receiver
0100111
27h ADC1 Group Convert Done
1001000
48h
(Reserved, do not use)
0000101
05h UART1 Transmitter
0101000
28h ADC Done AN0
... ...
0000110
06h ECC Single Bit Error
0101001
29h ADC Done AN1
1010110
56h
0000111
07h NVM Write Complete
0101010
2Ah ADC Done AN2
1010111
57h PWM Event D
0001000
08h INT1 – External Interrupt 1
0101011
2Bh ADC Done AN3
1011000
58h PWM Event E
0001001
09h SI2C1 – I2C1 Slave Event
0101100
2Ch ADC Done AN4
1011001
59h PWM Event F
0001010
0Ah MI2C1 – I2C1 Master Event
0101101
2Dh ADC Done AN5
1011010
5Ah (Reserved, do not use)
0001011
0Bh INT2 – External Interrupt 2
0101110
2Eh ADC Done AN6
1011011
5Bh (Reserved, do not use)
0001100
0Ch SCCP2 Interrupt
0101111
2Fh ADC Done AN7
1011100
5Ch SCCP7 Interrupt
0001101
0Dh INT3 – External Interrupt 3
0110000
30h ADC Done AN8
1011101
5Dh SCCP8 Interrupt
0001110
0Eh UART2 Receiver
0110001
31h ADC Done AN9
1011110
5Eh (Reserved, do not use)
0001111
0Fh UART2 Transmitter
0110010
32h ADC Done AN10
1011111
5Fh ADC FIFO Ready Interrupt
0010000
10h SPI2 Receiver
0110011
33h ADC Done AN11
1100000
60h CLC3 Positive Edge Interrupt
0010001
11h SPI2 Transmitter
0110100
34h ADC Done AN12
1100001
61h CLC4 Positive Edge Interrupt
0010010
12h SCCP3 Interrupt
0110101
35h ADC Done AN13
1100010
62h SPI3 Receiver
0010011
13h SI2C2 – I2C2 Slave Event
0110110
36h ADC Done AN14
1100011
63h SPI3 Transmitter
0010100
14h MI2C2 – I2C1 Master Event
0110111
37h ADC Done AN15
1100100
64h SI2C3 – I2C3 Slave Event
0010101
15h SCCP4 Interrupt
0111000
38h ADC Done AN16
1100101
65h MI2C3 – I2C3 Master Event
0010110
16h SCCP5 Interrupt
0111001
39h ADC Done AN17
1100110
66h SPI3 Fault
0010111
17h SCCP6 Interrupt
0111010
3Ah ADC Done AN18
1100111
67h MCCP9
0011000
18h CRC Generator Interrupt
0111011
3Bh ADC Done AN19
1101000
68h UART3 Receiver
0011001
19h PWM Event A
0111100
3Ch ADC Done AN20
1101001
69h UART3 Transmitter
0011010
1Ah (Reserved, do not use)
0111101
3Dh ADC Done AN21
1101010
6Ah ADC Done AN24
0011011
1Bh PWM Event B
0111110
3Eh ADC Done AN22
1101011
6Bh ADC Done AN25
0011100
1Ch PWM Generator 1
0111111
3Fh ADC Done AN23
1101100
6Ch PMP Event
0011101
1Dh PWM Generator 2
1000000
40h AD1FLTR1 – Oversample Filter 1
1101101
6Dh PMP Error Event
0011110
1Eh PWM Generator 3
1000001
41h AD1FLTR2 – Oversample Filter 2
1101110
6Eh
(Reserved, do not use)
0011111
1Fh PWM Generator 4
1000010
42h AD1FLTR3 – Oversample Filter 3
... ...
0100000
20h PWM Generator 5
1000011
43h AD1FLTR4 – Oversample Filter 4
1111111
7Fh
0100001
21h PWM Generator 6
0100010
22h PWM Generator 7
dsPIC33CK256MP508 FAMILY
DS70005349E-page 216 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 217
dsPIC33CK256MP508 FAMILY
11.0 CONTROLLER AREA
NETWORK (CAN FD) MODULE
11.1 Features
The CAN FD module has the following features:
General
• Nominal (Arbitration) Bit Rate up to 1 Mbps
• Data Bit Rate up to 8 Mbps
• CAN FD Controller modes:
- Mixed CAN 2.0B and CAN FD mode
- CAN 2.0B mode
• Conforms to ISO11898-1:2015
Message FIFOs
• Seven FIFOs, Configurable as Transmit or
Receive FIFOs
• One Transmit Queue (TXQ)
• Transmit Event FIFO (TEF) with 32-Bit Timestamp
Message Transmission
• Message Transmission Prioritization:
- Based on priority bit field, and/or
- Message with lowest ID gets transmitted first
using the TXQ
• Programmable Automatic Retransmission
Attempts: Unlimited, Three Attempts or Disabled
Message Reception
• 16 Flexible Filter and Mask Objects.
• Each Object can be Configured to Filter either:
- Standard ID + first 18 data bits or
- Extended ID
• 32-Bit Timestamp.
• The CAN FD Bit Stream Processor (BSP)
Implements the Medium Access Control of the
CAN FD Protocol Described in ISO11898-1:2015.
It serializes and deserializes the bit stream,
encodes and decodes the CAN FD frames,
manages the medium access, Acknowledges
frames, and detects and signals errors.
• The TX Handler Prioritizes the Messages that are
Requested for Transmission by the Transmit
FIFOs. It uses the RAM interface to fetch the
transmit data from RAM and provides it to the
BSP for transmission.
• The BSP provides Received Messages to the RX
Handler. The RX handler uses acceptance filters
to filter out messages that shall be stored in the
Receive FIFOs. It uses the RAM interface to store
received data into RAM.
• Each FIFO can be Configured either as a
Transmit or Receive FIFO. The FIFO control
keeps track of the FIFO head and tail, and calcu-
lates the user address. In a TX FIFO, the user
address points to the address in RAM where the
data for the next transmit message shall be
stored. In an RX FIFO, the user address points to
the address in RAM where the data of the next
receive message shall be read. The user notifies
the FIFO that a message was written to or read
from RAM by incrementing the head/tail of the
FIFO.
• The Transmit Queue (TXQ) is a Special Transmit
FIFO that Transmits the Messages based on the
ID of the Messages Stored in the Queue.
• The Transmit Event FIFO (TEF) Stores the
Message IDs of the Transmitted Messages.
• A Free-Running Time Base Counter is used to
Timestamp Received Messages. Messages in the
TEF can also be timestamped.
• The CAN FD Controller module Generates Inter-
rupts when New Messages are Received or when
Messages were Transmitted Successfully.
Figure 11-1 shows the CAN FD system block diagram.
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a
comprehensive reference source. For
more information, refer to “CAN Flexible
Data-Rate (FD) Protocol Module”
(www.microchip.com/DS70005340) in the
“dsPIC33/PIC24 Family Reference
Manual”.
2: Not all device variants include the CAN FD
peripheral. Refer to Ta b l e 1 and Tab l e 2 for
availability.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 218 2017-2018 Microchip Technology Inc.
FIGURE 11-1: CAN FD MODULE BLOCK DIAGRAM
TX Handler
TX Prioritization
RX Handler
Filter and Masks
Timestamping
Interrupt Control
Error Handling Diagnostics
C1TX
C1RX
Device RAM
TEF
Message
Object 0
Message
Object 31
•
•
•
TXQ
Message
Object 0
Message
Object 31
•
•
•
FIFO 0
Message
Object 0
Message
Object 31
•
•
•
FIFO 7
Message
Object 0
Message
Object 31
•
•
•
•••
2017-2018 Microchip Technology Inc. DS70005349E-page 219
dsPIC33CK256MP508 FAMILY
11.2 Can Control Registers
REGISTER 11-1: C1CONH: CAN CONTROL REGISTER HIGH
R/W-0 R/W-0 R/W-0 R/W-0 S/HC-0 R/W-1 R/W-0 R/W-0
TXBWS3 TXBWS2 TXBWS1 TXBWS0 ABAT REQOP2 REQOP1 REQOP0
bit 15 bit 8
R-1 R-0 R-0 R/W-1 R/W-1 R/W-0 R/W-0 R/W-0
OPMOD2 OPMOD1 OPMOD0 TXQEN(1)STEF(1)SERRLOM(1)ESIGM(1)RTXAT(1)
bit 7 bit 0
Legend: S = Settable bit HC = Hardware Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 TXBWS<3:0>: Transmit Bandwidth Sharing bits
1111-1100 = 4096
1011 = 2048
1010 = 1024
1001 = 512
1000 = 256
0111 = 128
0110 = 64
0101 = 32
0100 = 16
0011 = 8
0010 = 4
0001 = 2
0000 = No delay
bit 11 ABAT: Abort All Pending Transmissions bit
1 = Signals all transmit buffers to abort transmission
0 = Module will clear this bit when all transmissions are aborted
bit 10-8 REQOP<2:0>: Request Operation Mode bits
111 = Sets Restricted Operation mode
110 = Sets Normal CAN 2.0 mode; error frames on CAN FD frames
101 = Sets External Loopback mode
100 = Sets Configuration mode
011 = Sets Listen Only mode
010 = Sets Internal Loopback mode
001 = Sets Disable mode
000 = Sets Normal CAN FD mode; supports mixing of full CAN FD and classic CAN 2.0 frames
bit 7-5 OPMOD<2:0>: Operation Mode Status bits
111 = Module is in Restricted Operation mode
110 = Module is in Normal CAN 2.0 mode; error frames on CAN FD frames
101 = Module is in External Loopback mode
100 = Module is in Configuration mode
011 = Module is in Listen Only mode
010 = Module is in Internal Loopback mode
001 = Module is in Disable mode
000 = Module is in Normal CAN FD mode; supports mixing of full CAN FD and classic CAN 2.0 frames
Note 1: These bits can only be modified in Configuration mode (OPMOD<2:0> = 100).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 220 2017-2018 Microchip Technology Inc.
bit 4 TXQEN: Enable Transmit Queue bit(1)
1 = Enables Transmit Message Queue (TXQ) and reserves space in RAM
0 = Does not reserve space in RAM for TXQ
bit 3 STEF: Store in Transmit Event FIFO bit(1)
1 = Saves transmitted messages in TEF
0 = Does not save transmitted messages in TEF
bit 2 SERRLOM: Transition to Listen Only Mode on System Error bit(1)
1 = Transitions to Listen Only mode
0 = Transitions to Restricted Operation mode
bit 1 ESIGM: Transmit ESI in Gateway Mode bit(1)
1 = ESI is transmitted as recessive when ESI of the message is high or CAN controller is error passive
0 = ESI reflects error status of CAN controller
bit 0 RTXAT: Restrict Retransmission Attempts bit(1)
1 = Restricted retransmission attempts, uses TXAT<1:0> bits (C1TXQCONH<6:5>)
0 = Unlimited number of retransmission attempts, TXAT<1:0> bits will be ignored
REGISTER 11-1: C1CONH: CAN CONTROL REGISTER HIGH (CONTINUED)
Note 1: These bits can only be modified in Configuration mode (OPMOD<2:0> = 100).
2017-2018 Microchip Technology Inc. DS70005349E-page 221
dsPIC33CK256MP508 FAMILY
REGISTER 11-2: C1CONL: CAN CONTROL REGISTER LOW
R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-1 R/W-1 R/W-1
CON — SIDL BRSDIS BUSY WFT1 WFT0 WAKFIL(1)
bit 15 bit 8
R/W-0 R/W-1 R/W-1 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CLKSEL(1)PXEDIS(1)ISOCRCEN(1)DNCNT4 DNCNT3 DNCNT2 DNCNT1 DNCNT0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 CON: CAN Enable bit
1 = CAN module is enabled
0 = CAN module is disabled
bit 14 Unimplemented: Read as ‘0’
bit 13 SIDL: CAN Stop in Idle Control bit
1 = Stops module operation in Idle mode
0 = Does not stop module operation in Idle mode
bit 12 BRSDIS: Bit Rate Switching (BRS) Disable bit
1 = Bit Rate Switching is disabled, regardless of BRS in the transmit message object
0 = Bit Rate Switching depends on BRS in the transmit message object
bit 11 BUSY: CAN Module is Busy bit
1 = The CAN module is active
0 = The CAN module is inactive
bit 10-9 WFT<1:0>: Selectable Wake-up Filter Time bits
11 = T11FILTER
10 = T10FILTER
01 = T01FILTER
00 = T00FILTER
bit 8 WAKFIL: Enable CAN Bus Line Wake-up Filter bit(1)
1 = Uses CAN bus line filter for wake-up
0 = CAN bus line filter is not used for wake-up
bit 7 CLKSEL: Module Clock Source Select bit(1)
1 = Auxiliary clock is active when module is enabled
0 = CAN clock is not active when module is enabled
bit 6 PXEDIS: Protocol Exception Event Detection Disabled bit(1)
A recessive “reserved bit” following a recessive FDF bit is called a Protocol Exception.
1 = Protocol Exception is treated as a form error
0 = If a Protocol Exception is detected, CAN will enter the bus integrating state
bit 5 ISOCRCEN: Enable ISO CRC in CAN FD Frames bit(1)
1 = Includes stuff bit count in CRC field and uses non-zero CRC initialization vector
0 = Does not include stuff bit count in CRC field and uses CRC initialization vector with all zeros
bit 4-0 DNCNT<4:0>: DeviceNet™ Filter Bit Number bits
10011-11111 = Invalid selection (compares up to 18 bits of data with EID)
10010 = Compares up to Data Byte 2, bit 6 with EID17
...
00001 = Compares up to Data Byte 0, bit 7 with EID0
00000 = Does not compare data bytes
Note 1: These bits can only be modified in Configuration mode (OPMOD<2:0> = 100).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 222 2017-2018 Microchip Technology Inc.
REGISTER 11-3: C1NBTCFGH: CAN NOMINAL BIT TIME CONFIGURATION REGISTER HIGH(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
BRP<7:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-0 R/W-0
TSEG1<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 BRP<7:0>: Baud Rate Prescaler bits
1111 1111 = TQ = 256/FSYS
...
0000 0000 = TQ = 1/FSYS
bit 7-0 TSEG1<7:0>: Time Segment 1 bits (Propagation Segment + Phase Segment 1)
1111 1111 = Length is 256 x TQ
...
0000 0000 = Length is 1 x TQ
Note 1: These bits can only be modified in Configuration mode (OPMOD<2:0> = 100).
REGISTER 11-4: C1NBTCFGL: CAN NOMINAL BIT TIME CONFIGURATION REGISTER LOW(1)
U-0 R/W-0 R/W-0 R/W-0 R/W-1 R/W-1 R/W-1 R/W-1
— TSEG2<6:0>
bit 15 bit 8
U-0 R/W-0 R/W-0 R/W-0 R/W-1 R/W-1 R/W-1 R/W-1
—SJW<6:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-8 TSEG2<6:0>: Time Segment 2 bits (Phase Segment 2)
111 1111 = Length is 128 x TQ
...
000 0000 = Length is 1 x TQ
bit 7 Unimplemented: Read as ‘0’
bit 6-0 SJW<6:0>: Synchronization Jump Width bits
111 1111 = Length is 128 x TQ
...
000 0000 = Length is 1 x TQ
Note 1: These bits can only be modified in Configuration mode (OPMOD<2:0> = 100).
2017-2018 Microchip Technology Inc. DS70005349E-page 223
dsPIC33CK256MP508 FAMILY
REGISTER 11-5: C1DBTCFGH: CAN DATA BIT TIME CONFIGURATION REGISTER HIGH(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
BRP<7:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-1 R/W-1 R/W-1 R/W-0
— — — TSEG1<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 BRP<7:0>: Baud Rate Prescaler bits
1111 1111 = TQ = 256/FSYS
...
0000 0000 = TQ = 1/FSYS
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 TSEG1<4:0>: Time Segment 1 bits (Propagation Segment + Phase Segment 1)
1 1111 = Length is 32 x TQ
...
0 0000 = Length is 1 x TQ
Note 1: This register can only be modified in Configuration mode (OPMOD<2:0> = 100).
REGISTER 11-6: C1DBTCFGL: CAN DATA BIT TIME CONFIGURATION REGISTER LOW(1)
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-1 R/W-1
— — — — TSEG2<3:0>
bit 15 bit 8
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-1 R/W-1
— — — —SJW<3:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 Unimplemented: Read as ‘0’
bit 11-8 TSEG2<3:0>: Time Segment 2 bits (Phase Segment 2)
1111 = Length is 16 x TQ
...
0000 = Length is 1 x TQ
bit 7-4 Unimplemented: Read as ‘0’
bit 3-0 SJW<3:0>: Synchronization Jump Width bits
1111 = Length is 16 x TQ
...
0000 = Length is 1 x TQ
Note 1: This register can only be modified in Configuration mode (OPMOD<2:0> = 100).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 224 2017-2018 Microchip Technology Inc.
REGISTER 11-7: C1TDCH: CAN TRANSMITTER DELAY COMPENSATION REGISTER HIGH(1)
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — —EDGFLTENSID11EN
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 R/W-1 R/W-0
— — — — — — TDCMOD1 TDCMOD0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9 EDGFLTEN: Enable Edge Filtering During Bus Integration State bit
1 = Edge filtering is enabled according to ISO11898-1:2015
0 = Edge filtering is disabled
bit 8 SID11EN: Enable 12-Bit SID in CAN FD Base Format Messages bit
1 = RRS is used as SID11 in CAN FD base format messages: SID<11:0> = {SID<10:0>, SID11}
0 = Does not use RRS; SID<10:0>
bit 7-2 Unimplemented: Read as ‘0’
bit 1-0 TDCMOD<1:0>: Transmitter Delay Compensation Mode bits (Secondary Sample Point (SSP))
10-11 = Auto: Measures delay and adds TSEG1<4:0> (C1DBTCFGH<4:0>), adds TDCO<6:0>
01 = Manual: Does not measure, uses TDCV<5:0> + TDCO<6:0> from register
00 = Disable
Note 1: This register can only be modified in Configuration mode (OPMOD<2:0> = 100).
2017-2018 Microchip Technology Inc. DS70005349E-page 225
dsPIC33CK256MP508 FAMILY
REGISTER 11-8: C1TDCL: CAN TRANSMITTER DELAY COMPENSATION REGISTER LOW(1)
U-0 R/W-0 R/W-0 R/W-1 R/W-0 R/W-0 R/W-0 R/W-0
— TDCO<6:0>
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— TDCV<5:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-8 TDCO<6:0>: Transmitter Delay Compensation Offset bits (Secondary Sample Point (SSP))
111 1111 = -64 x T
SYS
...
011 1111 = 63 x T
SYS
...
000 0000 = 0 x TSYS
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 TDCV<5:0>: Transmitter Delay Compensation Value bits (Secondary Sample Point (SSP))
11 1111 = FP
...
00 0000 = 0 x FP
Note 1: This register can only be modified in Configuration mode (OPMOD<2:0> = 100).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 226 2017-2018 Microchip Technology Inc.
REGISTER 11-9: C1TBCH: CAN TIME BASE COUNTER REGISTER HIGH(1,2)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TBC<31:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TBC<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 TBC<31:16> CAN Time Base Counter bits
This is a free-running timer that increments every TBCPREx clock when TBCEN is set.
Note 1: The Time Base Counter (TBC) will be stopped and reset when TBCEN = 0 to save power.
2: The TBC prescaler count will be reset on any write to C1TBCH/L (TBCPREx will be unaffected).
REGISTER 11-10: C1TBCL: CAN TIME BASE COUNTER REGISTER LOW(1,2)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TBC<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TBC<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 TBC<15:0> CAN Time Base Counter bits
This is a free-running timer that increments every TBCPREx clock when TBCEN is set.
Note 1: The TBC will be stopped and reset when TBCEN = 0 to save power.
2: The TBC prescaler count will be reset on any write to C1TBCH/L (TBCPREx will be unaffected).
2017-2018 Microchip Technology Inc. DS70005349E-page 227
dsPIC33CK256MP508 FAMILY
REGISTER 11-11: C1TSCONH: CAN TIMESTAMP CONTROL REGISTER HIGH
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
— — — — — TSRES TSEOF TBCEN
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-3 Unimplemented: Read as ‘0’
bit 2 TSRES: Timestamp Reset bit (CAN FD frames only)
1 = At sample point of the bit following the FDF bit
0 = At sample point of Start-of-Frame (SOF)
bit 1 TSEOF: Timestamp End-of-Frame (EOF) bit
1 = Timestamp when frame is taken valid (11898-1 10.7):
- RX no error until last, but one bit of EOF
- TX no error until the end of EOF
0 = Timestamp at “beginning” of frame:
- Classical Frame: At sample point of SOF
- FD Frame: See TSRES bit
bit 0 TBCEN: Time Base Counter Enable bit
1 = Enables TBC
0 = Stops and resets TBC
REGISTER 11-12: C1TSCONL: CAN TIMESTAMP CONTROL REGISTER LOW
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — — TBCPRE<9:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TBCPRE<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9-0 TBCPRE<9:0>: CAN Time Base Counter Prescaler bits
1023 = TBC increments every 1024 clocks
...
0 = TBC increments every 1 clock
dsPIC33CK256MP508 FAMILY
DS70005349E-page 228 2017-2018 Microchip Technology Inc.
REGISTER 11-13: C1VECH: CAN INTERRUPT CODE REGISTER HIGH
U-0 R-1 R-0 R-0 R-0 R-0 R-0 R-0
— RXCODE<6:0>
bit 15 bit 8
U-0 R-1 R-0 R-0 R-0 R-0 R-0 R-0
— TXCODE<6:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-8 RXCODE<6:0>: Receive Interrupt Flag Code bits
1000001-1111111 = Reserved
1000000 = No interrupt
0001000-0111111 = Reserved
0000111 = FIFO 7 interrupt (RFIF7 is set)
...
0000010 = FIFO 2 interrupt (RFIF2 is set)
0000001 = FIFO 1 interrupt (RFIF1 is set)
0000000 = Reserved; FIFO 0 cannot receive
bit 7 Unimplemented: Read as ‘0’
bit 6-0 TXCODE<6:0>: Transmit Interrupt Flag Code bits
1000001-1111111 = Reserved
1000000 = No interrupt
0001000-0111111 = Reserved
0000111 = FIFO 7 interrupt (TFIF7 is set)
...
0000001 = FIFO 1 interrupt (TFIF1 is set)
0000000 = FIFO 0 interrupt (TFIF0 is set)
2017-2018 Microchip Technology Inc. DS70005349E-page 229
dsPIC33CK256MP508 FAMILY
REGISTER 11-14: C1VECL: CAN INTERRUPT CODE REGISTER LOW
U-0 U-0 U-0 R-0 R-0 R-0 R-0 R-0
— — —FILHIT<4:0>
bit 15 bit 8
U-0 R-1 R-0 R-0 R-0 R-0 R-0 R-0
—ICODE<6:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 FILHIT<4:0>: Filter Hit Number bits
01111 = Filter 15
01110 = Filter 14
...
00001 = Filter 1
00000 = Filter 0
bit 7 Unimplemented: Read as ‘0’
bit 6-0 ICODE<6:0>: Interrupt Flag Code bits
1001011-1111111 = Reserved
1001010 = Transmit attempt interrupt (any bit in C1TXATIF is set)
1001001 = Transmit event FIFO interrupt (any bit in C1TEFSTA is set)
1001000 = Invalid message occurred (IVMIF/IE)
1000111 = CAN module mode change occurred (MODIF/IE)
1000110 = CAN timer overflow (TBCIF/IE)
1000101 = RX/TX MAB overflow/underflow (RX: Message received before previous message was
saved to memory; TX: Can’t feed TX MAB fast enough to transmit consistent data)
1000100 = Address error interrupt (illegal FIFO address presented to system)
1000011 = Receive FIFO overflow interrupt (any bit in C1RXOVIF is set)
1000010 = Wake-up interrupt (WAKIF/WAKIE)
1000001 = Error interrupt (CERRIF/IE)
1000000 = No interrupt
0001000-0111111 = Reserved
0000111 = FIFO 7 interrupt (TFIF7 or RFIF7 is set)
...
0000001 = FIFO 1 interrupt (TFIF1 or RFIF1 is set)
0000000 = FIFO 0 interrupt (TFIF0 is set)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 230 2017-2018 Microchip Technology Inc.
REGISTER 11-15: C1INTH: CAN INTERRUPT REGISTER HIGH
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0 U-0
IVMIE WAKIE CERRIE SERRIE RXOVIE TXATIE — —
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — TEFIE MODIE TBCIE RXIE TXIE
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 IVMIE: Invalid Message Interrupt Enable bit
1 = Invalid message interrupt is enabled
0 = Invalid message interrupt is disabled
bit 14 WAKIE: Bus Wake-up Activity Interrupt Enable bit
1 = Wake-up activity interrupt is enabled
0 = Wake-up Activity Interrupt is disabled
bit 13 CERRIE: CAN Bus Error Interrupt Enable bit
1 = CAN bus error interrupt is enabled
0 = CAN bus error interrupt is disabled
bit 12 SERRIE: System Error Interrupt Enable bit
1 = System error interrupt is enabled
0 = System error interrupt is disabled
bit 11 RXOVIE: Receive Buffer Overflow Interrupt Enable bit
1 = Receive buffer overflow interrupt is enabled
0 = Receive buffer overflow interrupt is disabled
bit 10 TXATIE: Transmit Attempt Interrupt Enable bit
1 = Transmit attempt interrupt is enabled
0 = Transmit attempt interrupt is disabled
bit 9-5 Unimplemented: Read as ‘0’
bit 4 TEFIE: Transmit Event FIFO Interrupt Enable bit
1 = Transmit event FIFO interrupt is enabled
0 = Transmit event FIFO interrupt is disabled
bit 3 MODIE: Mode Change Interrupt Enable bit
1 = Mode change interrupt is enabled
0 = Mode change interrupt is disabled
bit 2 TBCIE: CAN Timer Interrupt Enable bit
1 = CAN timer interrupt is enabled
0 = CAN timer interrupt is disabled
bit 1 RXIE: Receive Object Interrupt Enable bit
1 = Receive object interrupt is enabled
0 = Receive object interrupt is disabled
bit 0 TXIE: Transmit Object Interrupt Enable bit
1 = Transmit object interrupt is enabled
0 = Transmit object interrupt is disabled
2017-2018 Microchip Technology Inc. DS70005349E-page 231
dsPIC33CK256MP508 FAMILY
REGISTER 11-16: C1INTL: CAN INTERRUPT REGISTER LOW
HS/C-0 HS/C-0 HS/C-0 HS/C-0 R-0 R-0 U-0 U-0
IVMIF(1)WAKIF(1)CERRIF(1)SERRIF(1)RXOVIF TXATIF — —
bit 15 bit 8
U-0 U-0 U-0 R-0 HS/C-0 HS/C-0 R-0 R-0
— — —TEFIFMODIF
(1)TBCIF(1)RXIF TXIF
bit 7 bit 0
Legend: C = Clearable bit HS = Hardware Settable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 IVMIF: Invalid Message Interrupt Flag bit(1)
1 = Invalid message interrupt occurred
0 = No invalid message interrupt occurred
bit 14 WAKIF: Bus Wake-up Activity Interrupt Flag bit(1)
1 = Wake-up activity interrupt occurred
0 = No wake-up activity interrupt occurred
bit 13 CERRIF: CAN Bus Error Interrupt Flag bit(1)
1 = CAN bus error interrupt occurred
0 = No CAN bus error interrupt occurred
bit 12 SERRIF: System Error Interrupt Flag bit(1)
1 = System error interrupt occurred
0 = No system error interrupt occurred
bit 11 RXOVIF: Receive Buffer Overflow Interrupt Flag bit
1 = Receive buffer overflow interrupt occurred
0 = No receive buffer overflow interrupt occurred
bit 10 TXATIF: Transmit Attempt Interrupt Flag bit
1 = Transmit attempt interrupt occurred
0 = No transmit attempt Interrupt occurred
bit 9-5 Unimplemented: Read as ‘0’
bit 4 TEFIF: Transmit Event FIFO Interrupt Flag bit
1 = Transmit event FIFO interrupt occurred
0 = No transmit event FIFO interrupt occurred
bit 3 MODIF: CAN Mode Change Interrupt Flag bit(1)
1 = CAN module mode change occurred (OPMOD<2:0> have changed to reflect REQOP<2:0>)
0 = No mode change occurred
bit 2 TBCIF: CAN Timer Overflow Interrupt Flag bit(1)
1 = TBC has overflowed
0 = TBC has not overflowed
bit 1 RXIF: Receive Object Interrupt Flag bit
1 = Receive object interrupt is pending
0 = No receive object interrupts are pending
bit 0 TXIF: Transmit Object Interrupt Flag bit
1 = Transmit object interrupt is pending
0 = No transmit object interrupts are pending
Note 1: C1INTL: Flags are set by hardware and cleared by application.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 232 2017-2018 Microchip Technology Inc.
REGISTER 11-17: C1RXIFH: CAN RECEIVE INTERRUPT STATUS REGISTER HIGH(1)
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
RFIF<31:24>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
RFIF<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 RFIF<31:16>: Unimplemented
Note 1: C1RXIFH: FIFO: RFIFx = ‘or’ of enabled RX FIFO flags (flags need to be cleared in the FIFO register).
REGISTER 11-18: C1RXIFL: CAN RECEIVE INTERRUPT STATUS REGISTER LOW(1)
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
RFIF<15:8>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 U-0
RFIF<7:1> —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 RFIF<15:8>: Unimplemented
bit 7-1 RFIF<7:1>: Receive FIFO Interrupt Pending bits
1 = One or more enabled receive FIFO interrupts are pending
0 = No enabled receive FIFO interrupts are pending
bit 0 Unimplemented: Read as ‘0’
Note 1: C1RXIFL: FIFO: RFIFx = ‘or’ of enabled RX FIFO flags (flags need to be cleared in the FIFO register).
2017-2018 Microchip Technology Inc. DS70005349E-page 233
dsPIC33CK256MP508 FAMILY
REGISTER 11-19: C1RXOVIFH: CAN RECEIVE OVERFLOW INTERRUPT STATUS REGISTER HIGH(1)
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
RFOVIF<31:24>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
RFOVIF<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 RFOVIF<31:16>: Unimplemented
Note 1: C1RXOVIFH: FIFO: RFOVIFx (flag needs to be cleared in the FIFO register).
REGISTER 11-20: C1RXOVIFL: CAN RECEIVE OVERFLOW INTERRUPT STATUS REGISTER LOW(1)
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
RFOVIF<15:8>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 U-0
RFOVIF<7:1> —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 RFOVIF<15:8>: Unimplemented
bit 7-1 RFOVIF<7:1>: Receive FIFO Overflow Interrupt Pending bits
1 = Interrupt is pending
0 = Interrupt is not pending
bit 0 Unimplemented: Read as ‘0’
Note 1: C1RXOVIFL: FIFO: RFOVIFx (flag needs to be cleared in the FIFO register).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 234 2017-2018 Microchip Technology Inc.
REGISTER 11-21: C1TXIFH: CAN TRANSMIT INTERRUPT STATUS REGISTER HIGH(1)
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
TFIF<31:24>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
TFIF<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 TFIF<31:16>: Unimplemented
Note 1: C1TXIFH: FIFO: TFIFx = ‘or’ of the enabled TX FIFO flags (flags need to be cleared in the FIFO register).
REGISTER 11-22: C1TXIFL: CAN TRANSMIT INTERRUPT STATUS REGISTER LOW(1)
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
TFIF<15:8>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
TFIF<7:0>(2)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 TFIF<15:8>: Unimplemented
bit 7-0 TFIF<7:0>: Transmit FIFO/TXQ Interrupt Pending bits(2)
1 = One or more enabled transmit FIFO/TXQ interrupts are pending
0 = No enabled transmit FIFO/TXQ interrupts are pending
Note 1: C1TXIFL: FIFO: TFIFx = ‘or’ of the enabled TX FIFO flags (flags need to be cleared in the FIFO register).
2: TFIF0 is for the transmit queue.
2017-2018 Microchip Technology Inc. DS70005349E-page 235
dsPIC33CK256MP508 FAMILY
REGISTER 11-23: C1TXATIFH: CAN TRANSMIT ATTEMPT INTERRUPT STATUS REGISTER HIGH(1)
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
TFATIF<31:24>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
TFATIF<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 TFATIF<31:16>: Unimplemented
Note 1: C1TXATIFH: FIFO: TFATIFx (flag needs to be cleared in the FIFO register).
REGISTER 11-24: C1TXATIFL: CAN TRANSMIT ATTEMPT INTERRUPT STATUS REGISTER LOW(1)
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
TFATIF<15:8>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
TFATIF<7:0>(2)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 TFATIF<15:8>: Unimplemented
bit 7-0 TFATIF<7:0>: Transmit FIFO/TXQ Attempt Interrupt Pending bits(2)
1 = Interrupt is pending
0 = Interrupt is not pending
Note 1: C1TXATIFL: FIFO: TFATIFx (flag needs to be cleared in the FIFO register).
2: TFATIF0 is for the transmit queue.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 236 2017-2018 Microchip Technology Inc.
REGISTER 11-25: C1TXREQH: CAN TRANSMIT REQUEST REGISTER HIGH
S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0
TXREQ<31:24>
bit 15 bit 8
S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0
TXREQ<23:16>
bit 7 bit 0
Legend: S = Settable bit HC = Hardware Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 TXREQ<31:16>: Unimplemented
REGISTER 11-26: C1TXREQL: CAN TRANSMIT REQUEST REGISTER LOW
S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0
TXREQ<15:8>
bit 15 bit 8
S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0
TXREQ<7:1> TXREQ0
bit 7 bit 0
Legend: S = Settable bit HC = Hardware Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 TXREQ<15:8>: Unimplemented
bit 7-1 TXREQ<7:1>: Message Send Request bits
TXEN = 1 (object configured as a transmit object):
Setting this bit to ‘1’ requests sending a message. The bit will automatically clear when the message(s)
queued in the object is (are) successfully sent. This bit can NOT be used for aborting a transmission.
TXEN = 0 (object configured as a receive object):
This bit has no effect.
bit 0 TXREQ0: Transmit Queue Message Send Request bit
Setting this bit to ‘1’ requests sending a message. The bit will automatically clear when the message(s)
queued in the object is (are) successfully sent. This bit can NOT be used for aborting a transmission.
2017-2018 Microchip Technology Inc. DS70005349E-page 237
dsPIC33CK256MP508 FAMILY
REGISTER 11-27: C1FIFOBAH: CAN MESSAGE MEMORY BASE ADDRESS REGISTER HIGH
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FIFOBA<31:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FIFOBA<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 FIFOBA<31:16>: Message Memory Base Address bits
Defines the base address for the transmit event FIFO followed by the message objects.
REGISTER 11-28: C1FIFOBAL: CAN MESSAGE MEMORY BASE ADDRESS REGISTER LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FIFOBA<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R-0 R-0
FIFOBA<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 FIFOBA<15:0>: Message Memory Base Address bits
Defines the base address for the transmit event FIFO followed by the message objects.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 238 2017-2018 Microchip Technology Inc.
REGISTER 11-29: C1TXQCONH: CAN TRANSMIT QUEUE CONTROL REGISTER HIGH
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PLSIZE2(1) PLSIZE1(1)PLSIZE0(1)FSIZE4(1)FSIZE3(1)FSIZE2(1)FSIZE1(1)FSIZE0(1)
bit 15 bit 8
U-0 R/W-1 R/W-1 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— TXAT1 TXAT0 TXPRI4 TXPRI3 TXPRI2 TXPRI1 TXPRI0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 PLSIZE<2:0>: Payload Size bits(1)
111 = 64 data bytes
110 = 48 data bytes
101 = 32 data bytes
100 = 24 data bytes
011 = 20 data bytes
010 = 16 data bytes
001 = 12 data bytes
000 = 8 data bytes
bit 12-8 FSIZE<4:0>: FIFO Size bits(1)
11111 = FIFO is 32 messages deep
...
00010 = FIFO is 3 messages deep
00001 = FIFO is 2 messages deep
00000 = FIFO is 1 message deep
bit 7 Unimplemented: Read as ‘0’
bit 6-5 TXAT<1:0>: Retransmission Attempts bits
This feature is enabled when RTXAT (C1CONH<0>) is set.
11 = Unlimited number of retransmission attempts
10 = Unlimited number of retransmission attempts
01 = Three retransmission attempts
00 = Disables retransmission attempts
bit 4-0 TXPRI<4:0>: Message Transmit Priority bits
11111 = Highest message priority
...
00000 = Lowest message priority
Note 1: These bits can only be modified in Configuration mode (OPMOD<2:0> = 100).
2017-2018 Microchip Technology Inc. DS70005349E-page 239
dsPIC33CK256MP508 FAMILY
REGISTER 11-30: C1TXQCONL: CAN TRANSMIT QUEUE CONTROL REGISTER LOW
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
— — — — — FRESET TXREQ UINC
bit 15 bit 8
R-0 U-0 U-0 R/W-0 U-0 R/W-0 U-0 R/W-0
TXEN ——TXATIE— TXQEIE —TXQNIE
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 Unimplemented: Read as ‘0’
bit 10 FRESET: FIFO Reset bit
1 = FIFO will be reset when bit is set, cleared by hardware when FIFO is reset; user should poll
whether this bit is clear before taking any action
0 = No effect
bit 9 TXREQ: Message Send Request bit
1 = Requests sending a message; the bit will automatically clear when all the messages queued in
the TXQ are successfully sent
0 = Clearing the bit to ‘0’ while set (‘1’) will request a message abort
bit 8 UINC: Increment Head/Tail bit
When this bit is set, the FIFO head will increment by a single message.
bit 7 TXEN: TX Enable bit
bit 6-5 Unimplemented: Read as ‘0’
bit 4 TXATIE: Transmit Attempts Exhausted Interrupt Enable bit
1 = Enables interrupt
0 = Disables interrupt
bit 3 Unimplemented: Read as ‘0’
bit 2 TXQEIE: Transmit Queue Empty Interrupt Enable bit
1 = Interrupt is enabled for TXQ empty
0 = Interrupt is disabled for TXQ empty
bit 1 Unimplemented: Read as ‘0’
bit 0 TXQNIE: Transmit Queue Not Full Interrupt Enable bit
1 = Interrupt is enabled for TXQ not full
0 = Interrupt is disabled for TXQ not full
dsPIC33CK256MP508 FAMILY
DS70005349E-page 240 2017-2018 Microchip Technology Inc.
REGISTER 11-31: C1TXQSTA: CAN TRANSMIT QUEUE STATUS REGISTER
U-0 U-0 U-0 R-0 R-0 R-0 R-0 R-0
— — —TXQCI4
(1)TXQCI3(1)TXQCI2(1)TXQCI1(1)TXQCI0(1)
bit 15 bit 8
R-0 R-0 R-0 C/HS-0 U-0 R-1 U-0 R-1
TXABT(2)TXLARB TXERR TXATIF — TXQEIF —TXQNIF
bit 7 bit 0
Legend: C = Clearable bit HS = Hardware Settable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 TXQCI<4:0>: Transmit Message Queue Index bits(1)
A read of this register will return an index to the message that the FIFO will next attempt to transmit.
bit 7 TXABT: Message Aborted Status bit(2)
1 = Message was aborted
0 = Message completed successfully
bit 6 TXLARB: Message Lost Arbitration Status bit
1 = Message lost arbitration while being sent
0 = Message did not lose arbitration while being sent
bit 5 TXERR: Error Detected During Transmission bit
1 = A bus error occurred while the message was being sent
0 = A bus error did not occur while the message was being sent
bit 4 TXATIF: Transmit Attempts Exhausted Interrupt Pending bit
1 = Interrupt is pending
0 = Interrupt is not pending
bit 3 Unimplemented: Read as ‘0’
bit 2 TXQEIF: Transmit Queue Empty Interrupt Flag bit
1 = TXQ is empty
0 = TXQ is not empty, at least 1 message is queued to be transmitted
bit 1 Unimplemented: Read as ‘0’
bit 0 TXQNIF: Transmit Queue Not Full Interrupt Flag bit
1 = TXQ is not full
0 = TXQ is full
Note 1: The TXQCI<4:0> bits give a zero-indexed value to the message in the TXQ. If the TXQ is four messages
deep (FSIZE<4:0> = 3), TXQCIx will take on a value of 0 to 3, depending on the state of the TXQ.
2: This bit is updated when a message completes (or aborts) or when the TXQ is reset.
2017-2018 Microchip Technology Inc. DS70005349E-page 241
dsPIC33CK256MP508 FAMILY
REGISTER 11-32: C1FIFOCONHx: CAN FIFO CONTROL REGISTER x (x = 1 TO 7) HIGH
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PLSIZE2(1)PLSIZE1(1)PLSIZE0(1)FSIZE4(1)FSIZE3(1)FSIZE2(1)FSIZE1(1)FSIZE0(1)
bit 15 bit 8
U-0 R/W-1 R/W-1 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— TXAT1 TXAT0 TXPRI4 TXPRI3 TXPRI2 TXPRI1 TXPRI0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 PLSIZE<2:0>: Payload Size bits(1)
111 = 64 data bytes
110 = 48 data bytes
101 = 32 data bytes
100 = 24 data bytes
011 = 20 data bytes
010 = 16 data bytes
001 = 12 data bytes
000 = 8 data bytes
bit 12-8 FSIZE<4:0>: FIFO Size bits(1)
11111 = FIFO is 32 messages deep
...
00010 = FIFO is 3 messages deep
00001 = FIFO is 2 messages deep
00000 = FIFO is 1 message deep
bit 7 Unimplemented: Read as ‘0’
bit 6-5 TXAT<1:0>: Retransmission Attempts bits
This feature is enabled when RTXAT (C1CONH<0>) is set.
11 = Unlimited number of retransmission attempts
10 = Unlimited number of retransmission attempts
01 = Three retransmission attempts
00 = Disables retransmission attempts
bit 4-0 TXPRI<4:0>: Message Transmit Priority bits
11111 = Highest message priority
...
00000 = Lowest message priority
Note 1: These bits can only be modified in Configuration mode (OPMOD<2:0> = 100).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 242 2017-2018 Microchip Technology Inc.
REGISTER 11-33: C1FIFOCONLx: CAN FIFO CONTROL REGISTER x (x = 1 TO 7) LOW
U-0 U-0 U-0 U-0 U-0 S/HC-1 R/W/HC-0 S/HC-0
— — — — — FRESET TXREQ UINC
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TXEN RTREN RXTSEN(1)TXATIE RXOVIE TFERFFIE TFHRFHIE TFNRFNIE
bit 7 bit 0
Legend: S = Settable bit HC = Hardware Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 Unimplemented: Read as ‘0’
bit 10 FRESET: FIFO Reset bit
1 = FIFO will be reset when bit is set, cleared by hardware when FIFO is reset; user should poll
whether this bit is clear before taking any action
0 = No effect
bit 9 TXREQ: Message Send Request bit
TXEN = 1 (FIFO configured as a transmit FIFO):
1 = Requests sending a message; the bit will automatically clear when all the messages queued in
the FIFO are successfully sent
0 = Clearing the bit to ‘0’ while set (‘1’) will request a message abort
TXEN = 0 (FIFO configured as a receive FIFO):
This bit has no effect.
bit 8 UINC: Increment Head/Tail bit
TXEN = 1 (FIFO configured as a transmit FIFO):
When this bit is set, the FIFO head will increment by a single message.
TXEN = 0 (FIFO configured as a receive FIFO):
When this bit is set, the FIFO tail will increment by a single message.
bit 7 TXEN: TX/RX Buffer Selection bit
1 = Transmits message object
0 = Receives message object
bit 6 RTREN: Auto-Remote Transmit (RTR) Enable bit
1 = When a Remote Transmit is received, TXREQ will be set
0 = When a Remote Transmit is received, TXREQ will be unaffected
bit 5 RXTSEN: Received Message Timestamp Enable bit(1)
1 = Captures timestamp in received message object in RAM
0 = Does not capture timestamp
bit 4 TXATIE: Transmit Attempts Exhausted Interrupt Enable bit
1 = Enables interrupt
0 = Disables interrupt
bit 3 RXOVIE: Overflow Interrupt Enable bit
1 = Interrupt is enabled for overflow event
0 = Interrupt is disabled for overflow event
Note 1: This bit can only be modified in Configuration mode (OPMOD<2:0> = 100).
2017-2018 Microchip Technology Inc. DS70005349E-page 243
dsPIC33CK256MP508 FAMILY
bit 2 TFERFFIE: Transmit/Receive FIFO Empty/Full Interrupt Enable bit
TXEN = 1 (FIFO configured as a transmit FIFO):
Transmit FIFO Empty Interrupt Enable
1 = Interrupt is enabled for FIFO empty
0 = Interrupt is disabled for FIFO empty
TXEN = 0 (FIFO configured as a receive FIFO):
Receive FIFO Full Interrupt Enable
1 = Interrupt is enabled for FIFO full
0 = Interrupt is disabled for FIFO full
bit 1 TFHRFHIE: Transmit/Receive FIFO Half Empty/Half Full Interrupt Enable bit
TXEN = 1 (FIFO configured as a transmit FIFO):
Transmit FIFO Half Empty Interrupt Enable
1 = Interrupt is enabled for FIFO half empty
0 = Interrupt is disabled for FIFO half empty
TXEN = 0 (FIFO configured as a receive FIFO):
Receive FIFO Half Full Interrupt Enable
1 = Interrupt is enabled for FIFO half full
0 = Interrupt is disabled for FIFO half full
bit 0 TFNRFNIE: Transmit/Receive FIFO Not Full/Not Empty Interrupt Enable bit
TXEN = 1 (FIFO configured as a transmit FIFO):
Transmit FIFO Not Full Interrupt Enable
1 = Interrupt is enabled for FIFO not full
0 = Interrupt is disabled for FIFO not full
TXEN = 0 (FIFO configured as a receive FIFO):
Receive FIFO Not Empty Interrupt Enable
1 = Interrupt is enabled for FIFO not empty
0 = Interrupt is disabled for FIFO not empty
REGISTER 11-33: C1FIFOCONLx: CAN FIFO CONTROL REGISTER x (x = 1 TO 7) LOW (CONTINUED)
Note 1: This bit can only be modified in Configuration mode (OPMOD<2:0> = 100).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 244 2017-2018 Microchip Technology Inc.
REGISTER 11-34: C1FIFOSTAx: CAN FIFO STATUS REGISTER x (x = 1 TO 7)
U-0 U-0 U-0 R-0 R-0 R-0 R-0 R-0
— — — FIFOCI4(1)FIFOCI3(1)FIFOCI2(1)FIFOCI1(1)FIFOCI0(1)
bit 15 bit 8
R-0 R-0 R-0 C/HS-0 C/HS-0 R-0 R-0 R-0
TXABT(3)TXLARB(2)TXERR(2)TXATIF RXOVIF TFERFFIF TFHRFHIF TFNRFNIF
bit 7 bit 0
Legend: C = Clearable bit HS = Hardware Settable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 FIFOCI<4:0>: FIFO Message Index bits(1)
TXEN = 1 (FIFO configured as a transmit buffer):
A read of this register will return an index to the message that the FIFO will next attempt to transmit.
TXEN = 0 (FIFO configured as a receive buffer):
A read of this register will return an index to the message that the FIFO will use to save the next
message.
bit 7 TXABT: Message Aborted Status bit(3)
1 = Message was aborted
0 = Message completed successfully
bit 6 TXLARB: Message Lost Arbitration Status bit(2)
1 = Message lost arbitration while being sent
0 = Message did not lose arbitration while being sent
bit 5 TXERR: Error Detected During Transmission bit(2)
1 = A bus error occurred while the message was being sent
0 = A bus error did not occur while the message was being sent
bit 4 TXATIF: Transmit Attempts Exhausted Interrupt Pending bit
TXEN = 1 (FIFO configured as a transmit buffer):
1 = Interrupt is pending
0 = Interrupt is not pending
TXEN = 0 (FIFO configured as a receive buffer):
Unused, read as ‘0’.
bit 3 RXOVIF: Receive FIFO Overflow Interrupt Flag bit
TXEN = 1 (FIFO configured as a transmit buffer):
Unused, read as ‘0’.
TXEN = 0 (FIFO configured as a receive buffer):
1 = Overflow event has occurred
0 = No overflow event has occurred
Note 1: FIFOCI<4:0> gives a zero-indexed value to the message in the FIFO. If the FIFO is 4 messages deep
(FSIZE<4:0> = 3), FIFOCIx will take on a value of 0 to 3, depending on the state of the FIFO.
2: These bits are updated when a message completes (or aborts) or when the FIFO is reset.
3: This bit is reset on any read of this register or when the TXQ is reset. The bits are cleared when TXREQ is
set or using an SPI write.
2017-2018 Microchip Technology Inc. DS70005349E-page 245
dsPIC33CK256MP508 FAMILY
bit 2 TFERFFIF: Transmit/Receive FIFO Empty/Full Interrupt Flag bit
TXEN = 1 (FIFO configured as a transmit FIFO):
Transmit FIFO Empty Interrupt Flag
1 = FIFO is empty
0 = FIFO is not empty, at least 1 message is queued to be transmitted
TXEN = 0 (FIFO configured as a receive FIFO):
Receive FIFO Full Interrupt Flag
1 = FIFO is full
0 = FIFO is not full
bit 1 TFHRFHIF: Transmit/Receive FIFO Half Empty/Half Full Interrupt Flag bit
TXEN = 1 (FIFO configured as a transmit FIFO):
Transmit FIFO Half Empty Interrupt Flag
1 = FIFO is half full
0 = FIFO is > half full
TXEN = 0 (FIFO configured as a receive FIFO):
Receive FIFO Half Full Interrupt Flag
1 = FIFO is half full
0 = FIFO is < half full
bit 0 TFNRFNIF: Transmit/Receive FIFO Not Full/Not Empty Interrupt Flag bit
TXEN = 1 (FIFO configured as a transmit FIFO):
Transmit FIFO Not Full Interrupt Flag
1 = FIFO is not full
0 = FIFO is full
TXEN = 0 (FIFO configured as a receive FIFO):
Receive FIFO Not Empty Interrupt Flag
1 = FIFO is not empty, has at least 1 message
0 = FIFO is empty
REGISTER 11-34: C1FIFOSTAx: CAN FIFO STATUS REGISTER x (x = 1 TO 7) (CONTINUED)
Note 1: FIFOCI<4:0> gives a zero-indexed value to the message in the FIFO. If the FIFO is 4 messages deep
(FSIZE<4:0> = 3), FIFOCIx will take on a value of 0 to 3, depending on the state of the FIFO.
2: These bits are updated when a message completes (or aborts) or when the FIFO is reset.
3: This bit is reset on any read of this register or when the TXQ is reset. The bits are cleared when TXREQ is
set or using an SPI write.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 246 2017-2018 Microchip Technology Inc.
REGISTER 11-35: C1TEFCONH: CAN TRANSMIT EVENT FIFO CONTROL REGISTER HIGH
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — —FSIZE<4:0>
(1)
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 FSIZE<4:0>: FIFO Size bits(1)
11111 = FIFO is 32 messages deep
...
00010 = FIFO is 3 messages deep
00001 = FIFO is 2 messages deep
00000 = FIFO is 1 message deep
bit 7-0 Unimplemented: Read as ‘0’
Note 1: These bits can only be modified in Configuration mode (OPMOD<2:0> = 100).
2017-2018 Microchip Technology Inc. DS70005349E-page 247
dsPIC33CK256MP508 FAMILY
REGISTER 11-36: C1TEFCONL: CAN TRANSMIT EVENT FIFO CONTROL REGISTER LOW
U-0 U-0 U-0 U-0 U-0 S/HC-0 U-0 S/HC-0
— — — — — FRESET —UINC
bit 15 bit 8
U-0 U-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
—— TEFTSEN(1)— TEFOVIE TEFFIE TEFHIE TEFNEIE
bit 7 bit 0
Legend: S = Settable bit HC = Hardware Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 Unimplemented: Read as ‘0’
bit 10 FRESET: FIFO Reset bit
1 = FIFO will be reset when bit is set, cleared by hardware when FIFO is reset; the user should poll
whether this bit is clear before taking any action
0 = No effect
bit 9 Unimplemented: Read as ‘0’
bit 8 UINC: Increment Tail bit
1 = When this bit is set, the FIFO tail will increment by a single message
0 = FIFO tail will not increment
bit 7-6 Unimplemented: Read as ‘0’
bit 5 TEFTSEN: Transmit Event FIFO Timestamp Enable bit(1)
1 = Timestamps elements in TEF
0 = Does not timestamp elements in TEF
bit 4 Unimplemented: Read as ‘0’
bit 3 TEFOVIE: Transmit Event FIFO Overflow Interrupt Enable bit
1 = Interrupt is enabled for overflow event
0 = Interrupt is disabled for overflow event
bit 2 TEFFIE: Transmit Event FIFO Full Interrupt Enable bit
1 = Interrupt is enabled for FIFO full
0 = Interrupt is disabled for FIFO full
bit 1 TEFHIE: Transmit Event FIFO Half Full Interrupt Enable bit
1 = Interrupt is enabled for FIFO half full
0 = Interrupt is disabled for FIFO half full
bit 0 TEFNEIE: Transmit Event FIFO Not Empty Interrupt Enable bit
1 = Interrupt is enabled for FIFO not empty
0 = Interrupt is disabled for FIFO not empty
Note 1: These bits can only be modified in Configuration mode (OPMOD<2:0> = 100).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 248 2017-2018 Microchip Technology Inc.
REGISTER 11-37: C1TEFSTA: CAN TRANSMIT EVENT FIFO STATUS REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 S/HC-0 R-0 R-0 R-0
— — — —TEFOVIFTEFFIF
(1)TEFHIF(1)TEFNEIF(1)
bit 7 bit 0
Legend: HC = Hardware Clearable bit S = Settable bit Can Set by ‘1’
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-4 Unimplemented: Read as ‘0’
bit 3 TEFOVIF: Transmit Event FIFO Overflow Interrupt Flag bit
1 = Overflow event has occurred
0 = No overflow event has occurred
bit 2 TEFFIF: Transmit Event FIFO Full Interrupt Flag bit(1)
1 = FIFO is full
0 = FIFO is not full
bit 1 TEFHIF: Transmit Event FIFO Half Full Interrupt Flag bit(1)
1 = FIFO is half full
0 = FIFO is < half full
bit 0 TEFNEIF: Transmit Event FIFO Not Empty Interrupt Flag bit(1)
1 = FIFO is not empty
0 = FIFO is empty
Note 1: These bits are read-only and reflect the status of the FIFO.
2017-2018 Microchip Technology Inc. DS70005349E-page 249
dsPIC33CK256MP508 FAMILY
REGISTER 11-38: C1FIFOUAHx: CAN FIFO USER ADDRESS REGISTER x (x = 1 TO 7) HIGH(1)
R-x R-x R-x R-x R-x R-x R-x R-x
FIFOUA<31:24>
bit 15 bit 8
R-x R-x R-x R-x R-x R-x R-x R-x
FIFOUA<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 FIFOUA<31:16>: FIFO User Address bits
TXEN = 1 (FIFO configured as a transmit buffer):
A read of this register will return the address where the next message is to be written (FIFO head).
TXEN = 0 (FIFO configured as a receive buffer):
A read of this register will return the address where the next message is to be read (FIFO tail).
Note 1: This register is not ensured to read correctly in Configuration mode and should only be accessed when the
module is not in Configuration mode.
REGISTER 11-39: C1FIFOUALx: CAN FIFO USER ADDRESS REGISTER x (x = 1 TO 7) LOW(1)
R-x R-x R-x R-x R-x R-x R-x R-x
FIFOUA<15:8>
bit 15 bit 8
R-x R-x R-x R-x R-x R-x R-x R-x
FIFOUA<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 FIFOUA<15:0>: FIFO User Address bits
TXEN = 1 (FIFO configured as a transmit buffer):
A read of this register will return the address where the next message is to be written (FIFO head).
TXEN = 0 (FIFO configured as a receive buffer):
A read of this register will return the address where the next message is to be read (FIFO tail).
Note 1: This register is not ensured to read correctly in Configuration mode and should only be accessed when the
module is not in Configuration mode.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 250 2017-2018 Microchip Technology Inc.
REGISTER 11-40: C1TEFUAH: CAN TRANSMIT EVENT FIFO USER ADDRESS REGISTER HIGH(1)
R-x R-x R-x R-x R-x R-x R-x R-x
TEFUA<31:24>
bit 15 bit 8
R-x R-x R-x R-x R-x R-x R-x R-x
TEFUA<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 TEFUA<31:16>: Transmit Event FIFO User Address bits
A read of this register will return the address where the next event is to be read (FIFO tail).
Note 1: This register is not ensured to read correctly in Configuration mode and should only be accessed when the
module is not in Configuration mode.
REGISTER 11-41: C1TEFUAL: CAN TRANSMIT EVENT FIFO USER ADDRESS REGISTER LOW(1)
R-x R-x R-x R-x R-x R-x R-x R-x
TEFUA<15:8>
bit 15 bit 8
R-x R-x R-x R-x R-x R-x R-x R-x
TEFUA<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 TEFUA<15:0>: Transmit Event FIFO User Address bits
A read of this register will return the address where the next event is to be read (FIFO tail).
Note 1: This register is not ensured to read correctly in Configuration mode and should only be accessed when the
module is not in Configuration mode.
2017-2018 Microchip Technology Inc. DS70005349E-page 251
dsPIC33CK256MP508 FAMILY
REGISTER 11-42: C1TXQUAH: CAN TRANSMIT QUEUE USER ADDRESS REGISTER HIGH(1)
R-x R-x R-x R-x R-x R-x R-x R-x
TXQUA<31:24>
bit 15 bit 8
R-x R-x R-x R-x R-x R-x R-x R-x
TXQUA<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 TXQUA<31:16>: TXQ User Address bits
A read of this register will return the address where the next message is to be written (TXQ head).
Note 1: This register is not ensured to read correctly in Configuration mode and should only be accessed when the
module is not in Configuration mode.
REGISTER 11-43: C1TXQUAL: CAN TRANSMIT QUEUE USER ADDRESS REGISTER LOW(1)
R-x R-x R-x R-x R-x R-x R-x R-x
TXQUA<15:8>
bit 15 bit 8
R-x R-x R-x R-x R-x R-x R-x R-x
TXQUA<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 TXQUA<15:0>: TXQ User Address bits
A read of this register will return the address where the next message is to be written (TXQ head).
Note 1: This register is not ensured to read correctly in Configuration mode and should only be accessed when the
module is not in Configuration mode.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 252 2017-2018 Microchip Technology Inc.
REGISTER 11-44: C1TRECH: CAN TRANSMIT/RECEIVE ERROR COUNT REGISTER HIGH
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 R-1 R-0 R-0 R-0 R-0 R-0
—— TXBO TXBP RXBP TXWARN RXWARN EWARN
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-6 Unimplemented: Read as ‘0’
bit 5 TXBO: Transmitter in Error State Bus Off bit (TERRCNT<7:0> > 255)
In Configuration mode, TXBO is set since the module is not on the bus.
bit 4 TXBP: Transmitter in Error State Bus Passive bit (TERRCNT<7:0> > 127)
bit 3 RXBP: Receiver in Error State Bus Passive bit (RERRCNT<7:0> > 127)
bit 2 TXWARN: Transmitter in Error State Warning bit (128 > TERRCNT<7:0> > 95)
bit 1 RXWARN: Receiver in Error State Warning bit (128 > RERRCNT<7:0> > 95)
bit 0 EWARN: Transmitter or Receiver in Error State Warning bit
REGISTER 11-45: C1TRECL: CAN TRANSMIT/RECEIVE ERROR COUNT REGISTER LOW
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
TERRCNT<7:0>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
RERRCNT<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 TERRCNT<7:0>: Transmit Error Counter bits
bit 7-0 RERRCNT<7:0>: Receive Error Counter bits
2017-2018 Microchip Technology Inc. DS70005349E-page 253
dsPIC33CK256MP508 FAMILY
REGISTER 11-46: C1BDIAG0H: CAN BUS DIAGNOSTICS REGISTER 0 HIGH
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DTERRCNT<7:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DRERRCNT<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 DTERRCNT<7:0>: Data Bit Rate Transmit Error Counter bits
bit 7-0 DRERRCNT<7:0>: Data Bit Rate Receive Error Counter bits
REGISTER 11-47: C1BDIAG0L: CAN BUS DIAGNOSTICS REGISTER 0 LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
NTERRCNT<7:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
NRERRCNT<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 NTERRCNT<7:0>: Nominal Bit Rate Transmit Error Counter bits
bit 7-0 NRERRCNT<7:0>: Nominal Bit Rate Receive Error Counter bits
dsPIC33CK256MP508 FAMILY
DS70005349E-page 254 2017-2018 Microchip Technology Inc.
REGISTER 11-48: C1BDIAG1H: CAN BUS DIAGNOSTICS REGISTER 1 HIGH
R/W-0 R/W-0 R/C-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0
DLCMM ESI DCRCERR DSTUFERR DFORMERR — DBIT1ERR DBIT0ERR
bit 15 bit 8
R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TXBOERR — NCRCERR NSTUFERR NFORMERR NACKERR NBIT1ERR NBIT0ERR
bit 7 bit 0
Legend: C = Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 DLCMM: DLC Mismatch bit
During a transmission or reception, the specified DLC is larger than the PLSIZE<2:0> of the FIFO element.
bit 14 ESI: ESI Flag of a Received CAN FD Message Set bit
bit 13 DCRCERR: Same as for nominal bit rate
bit 12 DSTUFERR: Same as for nominal bit rate
bit 11 DFORMERR: Same as for nominal bit rate
bit 10 Unimplemented: Read as ‘0’
bit 9 DBIT1ERR: Same as for nominal bit rate
bit 8 DBIT0ERR: Same as for nominal bit rate
bit 7 TXBOERR: Device Went to Bus Off bit (and auto-recovered)
bit 6 Unimplemented: Read as ‘0’
bit 5 NCRCERR: Received Message with CRC Incorrect Checksum bit
The CRC checksum of a received message was incorrect. The CRC of an incoming message does not
match with the CRC calculated from the received data.
bit 4 NSTUFERR: Received Message with Illegal Sequence bit
More than 5 equal bits in a sequence have occurred in a part of a received message where this is not allowed.
bit 3 NFORMERR: Received Frame Fixed Format bit
A fixed format part of a received frame has the wrong format.
bit 2 NACKERR: Transmitted Message Not Acknowledged bit
Transmitted message was not acknowledged.
bit 1 NBIT1ERR: Transmitted Message Recessive Level bit
During the transmission of a message (with the exception of the arbitration field), the device wanted to send
a recessive level (bit of logical value ‘1’), but the monitored bus value was dominant.
bit 0 NBIT0ERR: Transmitted Message Dominant Level bit
During the transmission of a message (or Acknowledge bit, active error flag or overload flag), the device
wanted to send a dominant level (data or identifier bit of logical value ‘0’), but the monitored bus value was
recessive. During bus off recovery, this status is set each time a sequence of 11 recessive bits has been
monitored. This enables the CPU to monitor the proceeding of the bus off recovery sequence (indicating
the bus is not stuck at dominant or continuously disturbed).
2017-2018 Microchip Technology Inc. DS70005349E-page 255
dsPIC33CK256MP508 FAMILY
REGISTER 11-49: C1BDIAG1L: CAN BUS DIAGNOSTICS REGISTER 1 LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
EFMSGCNT<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
EFMSGCNT<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 EFMSGCNT<15:0>: Error Free Message Counter bits
dsPIC33CK256MP508 FAMILY
DS70005349E-page 256 2017-2018 Microchip Technology Inc.
REGISTER 11-50: C1FLTCONxH: CAN FILTER CONTROL REGISTER x HIGH (x = 0 TO 3;
c = 2, 6, 10, 14; d = 3, 7, 11, 15)
R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FLTENd —— FdBP4 FdBP3 FdBP2 FdBP1 FdBP0
bit 15 bit 8
R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FLTENc —— FcBP4 FcBP3 FcBP2 FcBP1 FcBP0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 FLTENd: Enable Filter d to Accept Messages bit
1 = Filter is enabled
0 = Filter is disabled
bit 14-13 Unimplemented: Read as ‘0’
bit 12-8 FdBP<4:0>: Pointer to Object When Filter d Hits bits
11111 to 11000 = Reserved
00111 = Message matching filter is stored in Object 7
00110 = Message matching filter is stored in Object 6
...
00010 = Message matching filter is stored in Object 2
00001 = Message matching filter is stored in Object 1
00000 = Reserved; Object 0 is the TX Queue and can’t receive messages
bit 7 FLTENc: Enable Filter c to Accept Messages bit
1 = Filter is enabled
0 = Filter is disabled
bit 6-5 Unimplemented: Read as ‘0’
bit 4-0 FcBP<4:0>: Pointer to Object When Filter c Hits bits
11111 to 11000 = Reserved
00111 = Message matching filter is stored in Object 7
00110 = Message matching filter is stored in Object 6
...
00010 = Message matching filter is stored in Object 2
00001 = Message matching filter is stored in Object 1
00000 = Reserved; Object 0 is the TX Queue and can’t receive messages
2017-2018 Microchip Technology Inc. DS70005349E-page 257
dsPIC33CK256MP508 FAMILY
REGISTER 11-51: C1FLTCONxL: CAN FILTER CONTROL REGISTER x LOW (x = 0 TO 3;
a = 0, 4, 8, 12; b = 1, 5, 9, 13)
R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FLTENb —— FbBP4 FbBP3 FbBP2 FbBP1 FbBP0
bit 15 bit 8
R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FLTENa —— FaBP4 FaBP3 FaBP2 FaBP1 FaBP0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 FLTENb: Enable Filter b to Accept Messages bit
1 = Filter is enabled
0 = Filter is disabled
bit 14-13 Unimplemented: Read as ‘0’
bit 12-8 FbBP<4:0>: Pointer to Object When Filter b Hits bits
11111 to 11000 = Reserved
00111 = Message matching filter is stored in Object 7
00110 = Message matching filter is stored in Object 6
...
00010 = Message matching filter is stored in Object 2
00001 = Message matching filter is stored in Object 1
00000 = Reserved; Object 0 is the TX Queue and can’t receive messages
bit 7 FLTENa: Enable Filter a to Accept Messages bit
1 = Filter is enabled
0 = Filter is disabled
bit 6-5 Unimplemented: Read as ‘0’
bit 4-0 FaBP<4:0>: Pointer to Object When Filter a Hits bits
11111 to 11000 = Reserved
00111 = Message matching filter is stored in Object 7
00110 = Message matching filter is stored in Object 6
...
00010 = Message matching filter is stored in Object 2
00001 = Message matching filter is stored in Object 1
00000 = Reserved; Object 0 is the TX Queue and can’t receive messages
dsPIC33CK256MP508 FAMILY
DS70005349E-page 258 2017-2018 Microchip Technology Inc.
REGISTER 11-52: C1FLTOBJxH: CAN FILTER OBJECT REGISTER x HIGH (x = 0 TO 15)
U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— EXIDE SID11 EID17 EID16 EID15 EID14 EID13
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
EID12 EID11 EID10 EID9 EID8 EID7 EID6 EID5
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14 EXIDE: Extended Identifier Enable bit
If MIDE = 1:
1 = Matches only messages with Extended Identifier addresses
0 = Matches only messages with Standard Identifier addresses
bit 13 SID11: Standard Identifier Filter bit
bit 12-0 EID<17:5>: Extended Identifier Filter bits
In DeviceNet™ mode, these are the filter bits for the first two data bytes.
REGISTER 11-53: C1FLTOBJxL: CAN FILTER OBJECT REGISTER x LOW (x = 0 TO 15)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
EID4 EID3 EID2 EID1 EID0 SID10 SID9 SID8
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SID7 SID6 SID5 SID4 SID3 SID2 SID1 SID0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 EID<4:0>: Extended Identifier Filter bits
In DeviceNet™ mode, these are the filter bits for the first two data bytes.
bit 10-0 SID<10:0>: Standard Identifier Filter bits
2017-2018 Microchip Technology Inc. DS70005349E-page 259
dsPIC33CK256MP508 FAMILY
REGISTER 11-54: C1MASKxH: CAN MASK REGISTER x HIGH (x = 0 TO 15)
U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— MIDE MSID11 MEID17 MEID16 MEID15 MEID14 MEID13
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
MEID12 MEID11 MEID10 MEID9 MEID8 MEID7 MEID6 MEID5
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14 MIDE: Identifier Receive Mode bit
1 = Matches only message types (standard or extended address) that correspond to the EXIDE bit in
the filter
0 = Matches either standard or extended address message if filters match
(i.e., if (Filter SID) = (Message SID) or if (Filter SID/EID) = (Message SID/EID))
bit 13 MSID11: Standard Identifier Mask bit
bit 12-0 MEID<17:5>: Extended Identifier Mask bits
In DeviceNet™ mode, these are the mask bits for the first two data bytes.
REGISTER 11-55: C1MASKxL: CAN MASK REGISTER x LOW (x = 0 TO 15)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
MEID4 MEID3 MEID2 MEID1 MEID0 MSID10 MSID9 MSID8
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
MSID7 MSID6 MSID5 MSID4 MSID3 MSID2 MSID1 MSID0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 MEID<4:0>: Extended Identifier Mask bits
In DeviceNet™ mode, these are the mask bits for the first two data bytes.
bit 10-0 MSID<10:0>: Standard Identifier Mask bits
dsPIC33CK256MP508 FAMILY
DS70005349E-page 260 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 261
dsPIC33CK256MP508 FAMILY
12.0 HIGH-RESOLUTION PWM WITH
FINE EDGE PLACEMENT
The High-Speed PWM (HSPWM) module is a
Pulse-Width Modulated (PWM) module to support both
motor control and power supply applications. This
flexible module provides features to support many
types of Motor Control (MC) and Power Control (PC)
applications, including:
• AC-to-DC Converters
• DC-to-DC Converters
• AC and DC Motors: BLDC, PMSM, ACIM, SRM, etc.
• Inverters
• Battery Chargers
• Digital Lighting
• Power Factor Correction (PFC)
Due to pin limitations, only the larger pin count packages
have all eight pairs of PWM outputs available. PWM4H
and PWM4L are always available on Peripheral Pin
Select (PPS). See Table 12-1 for PWM output availability.
TABLE 12-1: PWM OUTPUT AVAILABILITY
12.1 Features
• Eight Independent PWM Generators, each with
Dual Outputs
• Operating modes:
- Independent Edge mode
- Variable Phase PWM mode
- Center-Aligned mode
- Double Update Center-Aligned mode
- Dual Edge Center-Aligned mode
-Dual PWM mode
• Output modes:
- Complementary
- Independent
-Push-Pull
• Dead-Time Generator
• Leading-Edge Blanking (LEB)
• Output Override for Fault Handling
• Flexible Period/Duty Cycle Updating Options
• Programmable Control Inputs (PCI)
• Advanced Triggering Options
• Six Combinatorial Logic Outputs
• Six PWM Event Outputs
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to “High-Resolution
PWM with Fine Edge Placement”
(www.microchip.com/DS70005320) in the
“dsPIC33/PIC24 Family Reference
Manual”.
Package
Type
Total PGx
Instances
Dedicated
Outputs
Dedicated +
PPS Outputs
28-pin 8 8 pairs 8 pairs
36-pin 8 8 pairs 8 pairs
48-pin 8 8 pairs 8 pairs
64-pin 8 5 pairs 6 pairs
80-pin 8 3 pairs 4 pairs
dsPIC33CK256MP508 FAMILY
DS70005349E-page 262 2017-2018 Microchip Technology Inc.
12.2 Architecture Overview
The PWM module consists of a common set of controls
and features, and multiple instantiations of PWM
Generators (PGs). Each PWM Generator can be inde-
pendently configured or multiple PWM Generators can
be used to achieve complex multiphase systems. PWM
Generators can also be used to implement sophisticated
triggering, protection and logic functions. A high-level
block diagram is shown in Figure 12-1.
FIGURE 12-1: PWM HIGH-LEVEL BLOCK DIAGRAM
12.3 Lock and Write Restrictions
The LOCK bit (PCLKCON<8>) may be set in software
to block writes to certain registers. For more informa-
tion, refer to “High-Resolution PWM with Fine Edge
Placement” (DS70005320) in the “dsPIC33/PIC24
Family Reference Manual”.
The following lock/unlock sequence is required to set or
clear the LOCK bit.
1. Write 0x55 to NVMKEY.
2. Write 0xAA to NVMKEY.
3. Clear (or set) the LOCK bit (PCLKCON<8>) as
a single operation.
In general, modifications to configuration controls
should not be done while the module is running, as
indicated by the ON bit (PGxCONL<15>) being set.
Common
PWM
Controls and
Data
PG1
PG2
PGx
PWM1H
PWM1L
PWM2H
PWM2L
PWMxH
PWMxL
2017-2018 Microchip Technology Inc. DS70005349E-page 263
dsPIC33CK256MP508 FAMILY
12.4 Control Registers
There are two categories of Special Function Registers
(SFRs) used to control the operation of the PWM
module:
• Common, shared by all PWM Generators
• PWM Generator-specific
An ‘x’ in the register name denotes an instance of a
PWM Generator.
A ‘y’ in the register name denotes an instance of the
common function.
REGISTER 12-1: PCLKCON: PWM CLOCK CONTROL REGISTER
R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0 R/W-0
HRRDY HRERR — — — — —LOCK
(1)
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 U-0 U-0 R/W-0 R/W-0
—— DIVSEL1 DIVSEL0 —— MCLKSEL1(2)MCLKSEL0(2)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 HRRDY: High-Resolution Ready bit
1 = The high-resolution circuitry is ready
0 = The high-resolution circuitry is not ready
bit 14 HRERR: High-Resolution Error bit
1 = An error has occurred; PWM signals will have limited resolution
0 = No error has occurred; PWM signals will have full resolution when HRRDY = 1
bit 13-9 Unimplemented: Read as ‘0’
bit 8 LOCK: Lock bit(1)
1 = Write-protected registers and bits are locked
0 = Write-protected registers and bits are unlocked
bit 7-6 Unimplemented: Read as ‘0’
bit 5-4 DIVSEL<1:0>: PWM Clock Divider Selection bits
11 = Divide ratio is 1:16
10 = Divide ratio is 1:8
01 = Divide ratio is 1:4
00 = Divide ratio is 1:2
bit 3-2 Unimplemented: Read as ‘0’
bit 1-0 MCLKSEL<1:0>: PWM Master Clock Selection bits(2)
11 = AFPLLO – Auxiliary PLL post-divider output
10 = FPLLO – Primary PLL post-divider output
01 = AFVCO/2 – Auxiliary VCO/2
00 = FOSC
Note 1: An unlock sequence must be performed before this bit can be cleared (see Section 12.3 “Lock and Write
Restrictions”).
2: Changing the MCLKSEL<1:0> bits while ON (PGxCONL<15>) = 1 is not recommended.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 264 2017-2018 Microchip Technology Inc.
REGISTER 12-2: FSCL: FREQUENCY SCALE REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FSCL<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FSCL<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 FSCL<15:0>: Frequency Scale Register bits
The value in this register is added to the frequency scaling accumulator at each pwm_master_clk.
When the accumulated value exceeds the value of FSMINPER, a clock pulse is produced.
REGISTER 12-3: FSMINPER: FREQUENCY SCALING MINIMUM PERIOD REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FSMINPER<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FSMINPER<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 FSMINPER<15:0>: Frequency Scaling Minimum Period Register bits
This register holds the minimum clock period (maximum clock frequency) that can be produced by the
frequency scaling circuit.
2017-2018 Microchip Technology Inc. DS70005349E-page 265
dsPIC33CK256MP508 FAMILY
REGISTER 12-4: MPHASE: MASTER PHASE REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
MPHASE<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
MPHASE<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 MPHASE<15:0>: Master Phase Register bits
This register holds the phase offset value that can be shared by multiple PWM Generators.
REGISTER 12-5: MDC: MASTER DUTY CYCLE REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
MDC<15:8>(1)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
MDC<7:0>(1)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 MDC<15:0>: Master Duty Cycle Register bits(1)
This register holds the duty cycle value that can be shared by multiple PWM Generators.
Note 1: Duty cycle values less than ‘0x0008’ should not be used (‘0x0020’ in High-Resolution mode).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 266 2017-2018 Microchip Technology Inc.
REGISTER 12-6: MPER: MASTER PERIOD REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
MPER<15:8>(1)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
MPER<7:0>(1)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 MPER<15:0>: Master Period Register bits(1)
This register holds the period value that can be shared by multiple PWM Generators.
Note 1: Period values less than ‘0x0010’ should not be used (‘0x0080’ in High-Resolution mode).
2017-2018 Microchip Technology Inc. DS70005349E-page 267
dsPIC33CK256MP508 FAMILY
REGISTER 12-7: CMBTRIGL: COMBINATIONAL TRIGGER REGISTER LOW
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CTA8EN CTA7EN CTA6EN CTA5EN CTA4EN CTA3EN CTA2EN CTA1EN
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7 CTA8EN: Enable Trigger Output from PWM Generator #8 as Source for Combinational Trigger A bit
1 = Enables specified trigger signal to be OR’d into the Combinatorial Trigger A signal
0 = Disabled
bit 6 CTA7EN: Enable Trigger Output from PWM Generator #7 as Source for Combinational Trigger A bit
1 = Enables specified trigger signal to be OR’d into the Combinatorial Trigger A signal
0 = Disabled
bit 5 CTA6EN: Enable Trigger Output from PWM Generator #6 as Source for Combinational Trigger A bit
1 = Enables specified trigger signal to be OR’d into the Combinatorial Trigger A signal
0 = Disabled
bit 4 CTA5EN: Enable Trigger Output from PWM Generator #5 as Source for Combinational Trigger A bit
1 = Enables specified trigger signal to be OR’d into the Combinatorial Trigger A signal
0 = Disabled
bit 3 CTA4EN: Enable Trigger Output from PWM Generator #4 as Source for Combinational Trigger A bit
1 = Enables specified trigger signal to be OR’d into the Combinatorial Trigger A signal
0 = Disabled
bit 2 CTA3EN: Enable Trigger Output from PWM Generator #3 as Source for Combinational Trigger A bit
1 = Enables specified trigger signal to be OR’d into the Combinatorial Trigger A signal
0 = Disabled
bit 1 CTA2EN: Enable Trigger Output from PWM Generator #2 as Source for Combinational Trigger A bit
1 = Enables specified trigger signal to be OR’d into the Combinatorial Trigger A signal
0 = Disabled
bit 0 CTA1EN: Enable Trigger Output from PWM Generator #1 as Source for Combinational Trigger A bit
1 = Enables specified trigger signal to be OR’d into the Combinatorial Trigger A signal
0 = Disabled
dsPIC33CK256MP508 FAMILY
DS70005349E-page 268 2017-2018 Microchip Technology Inc.
REGISTER 12-8: CMBTRIGH: COMBINATIONAL TRIGGER REGISTER HIGH
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CTB8EN CTB7EN CTB6EN CTB5EN CTB4EN CTB3EN CTB2EN CTB1EN
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7 CTB8EN: Enable Trigger Output from PWM Generator #8 as Source for Combinational Trigger B bit
1 = Enables specified trigger signal to be OR’d into the Combinatorial Trigger B signal
0 = Disabled
bit 6 CTB7EN: Enable Trigger Output from PWM Generator #7 as Source for Combinational Trigger B bit
1 = Enables specified trigger signal to be OR’d into the Combinatorial Trigger B signal
0 = Disabled
bit 5 CTB6EN: Enable Trigger Output from PWM Generator #6 as Source for Combinational Trigger B bit
1 = Enables specified trigger signal to be OR’d into the Combinatorial Trigger B signal
0 = Disabled
bit 4 CTB5EN: Enable Trigger Output from PWM Generator #5 as Source for Combinational Trigger B bit
1 = Enables specified trigger signal to be OR’d into the Combinatorial Trigger B signal
0 = Disabled
bit 3 CTB4EN: Enable Trigger Output from PWM Generator #4 as Source for Combinational Trigger B bit
1 = Enables specified trigger signal to be OR’d into the Combinatorial Trigger B signal
0 = Disabled
bit 2 CTB3EN: Enable Trigger Output from PWM Generator #3 as Source for Combinational Trigger B bit
1 = Enables specified trigger signal to be OR’d into the Combinatorial Trigger B signal
0 = Disabled
bit 1 CTB2EN: Enable Trigger Output from PWM Generator #2 as Source for Combinational Trigger B bit
1 = Enables specified trigger signal to be OR’d into the Combinatorial Trigger B signal
0 = Disabled
bit 0 CTB1EN: Enable Trigger Output from PWM Generator #1 as Source for Combinational Trigger B bit
1 = Enables specified trigger signal to be OR’d into the Combinatorial Trigger B signal
0 = Disabled
2017-2018 Microchip Technology Inc. DS70005349E-page 269
dsPIC33CK256MP508 FAMILY
REGISTER 12-9: LOGCONy: COMBINATORIAL PWM LOGIC CONTROL
REGISTER y(2)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PWMS1y3(1)PWMS1y2(1)PWMS1y1(1)PWMS1y0(1)PWMS2y3(1)PWMS2y2(1)PWMS2y1(1)PWMS2y0(1)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0
S1yPOL S2yPOL PWMLFy1 PWMLFy0 —PWMLFyD2
(3)PWMLFyD1(3)PWMLFyD0(3)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 PWMS1y<3:0>: Combinatorial PWM Logic Source #1 Selection bits(1)
1111 = PWM8L
1110 =PWM8H
1101 =PWM7L
1100 =PWM7H
1011 =PWM6L
1010 =PWM6H
1001 =PWM5L
1000 =PWM5H
0111 =PWM4L
0110 =PWM4H
0101 =PWM3L
0100 =PWM3H
0011 =PWM2L
0010 =PWM2H
0001 =PWM1L
0000 =PWM1H
bit 11-8 PWMS2y<3:0>: Combinatorial PWM Logic Source #2 Selection bits(1)
1111 = PWM8L
1110 =PWM8H
1101 =PWM7L
1100 =PWM7H
1011 =PWM6L
1010 =PWM6H
1001 =PWM5L
1000 =PWM5H
0111 =PWM4L
0110 =PWM4H
0101 =PWM3L
0100 =PWM3H
0011 =PWM2L
0010 =PWM2H
0001 =PWM1L
0000 =PWM1H
Note 1: Logic function input will be connected to ‘0’ if the PWM channel is not present.
2: ‘y’ denotes a common instance (A-F).
3: Instances of y = A, C, E of LOGCONy assign logic function output to the PWMxH pin. Instances of y = B, D,
F of LOGCONy assign logic function to the PWMxL pin.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 270 2017-2018 Microchip Technology Inc.
bit 7 S1yPOL: Combinatorial PWM Logic Source #1 Polarity bit
1 = Input is inverted
0 = Input is positive logic
bit 6 S2yPOL: Combinatorial PWM Logic Source #2 Polarity bit
1 = Input is inverted
0 = Input is positive logic
bit 5-4 PWMLFy<1:0>: Combinatorial PWM Logic Function Selection bits
11 = Reserved
10 = PWMS1y ^ PWMS2y (XOR)
01 = PWMS1y & PWMS2y (AND)
00 = PWMS1y | PWMS2y (OR)
bit 3 Unimplemented: Read as ‘0’
bit 2-0 PWMLFyD<2:0>: Combinatorial PWM Logic Destination Selection bits(3)
111 = Logic function is assigned to PWM8H or PWM8L pin
110 = Logic function is assigned to PWM7H or PWM7L pin
101 = Logic function is assigned to PWM6H or PWM6L pin
100 = Logic function is assigned to PWM5H or PWM5L pin
011 = Logic function is assigned to PWM4H or PWM4L pin
010 = Logic function is assigned to PWM3H or PWM3L pin
001 = Logic function is assigned to PWM2H or PWM2L pin
000 = No assignment, combinatorial PWM logic function is disabled
REGISTER 12-9: LOGCONy: COMBINATORIAL PWM LOGIC CONTROL
REGISTER y(2) (CONTINUED)
Note 1: Logic function input will be connected to ‘0’ if the PWM channel is not present.
2: ‘y’ denotes a common instance (A-F).
3: Instances of y = A, C, E of LOGCONy assign logic function output to the PWMxH pin. Instances of y = B, D,
F of LOGCONy assign logic function to the PWMxL pin.
2017-2018 Microchip Technology Inc. DS70005349E-page 271
dsPIC33CK256MP508 FAMILY
REGISTER 12-10: PWMEVTy: PWM EVENT OUTPUT CONTROL REGISTER y(5)
R/W-0 R/W-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0
EVTyOEN EVTyPOL EVTySTRD EVTySYNC — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0
EVTySEL3 EVTySEL2 EVTySEL1 EVTySEL0 — EVTyPGS2(2)EVTyPGS1(2)EVTyPGS0(2)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 EVTyOEN: PWM Event Output Enable bit
1 = Event output signal is output on PWMEy pin
0 = Event output signal is internal only
bit 14 EVTyPOL: PWM Event Output Polarity bit
1 = Event output signal is active-low
0 = Event output signal is active-high
bit 13 EVTySTRD: PWM Event Output Stretch Disable bit
1 = Event output signal pulse width is not stretched
0 = Event output signal is stretched to eight PWM clock cycles minimum(1)
bit 12 EVTySYNC: PWM Event Output Sync bit
1 = Event output signal is synchronized to the system clock
0 = Event output is not synchronized to the system clock
Event output signal pulse will be two system clocks when this bit is set and EVTySTRD = 1.
bit 11-8 Unimplemented: Read as ‘0’
bit 7-4 EVTySEL<3:0>: PWM Event Selection bits
1111 = High-resolution error event signal
1110-1010 = Reserved
1001 = ADC Trigger 2 signal
1000 = ADC Trigger 1 signal
0111 = STEER signal (available in Push-Pull Output modes only)(4)
0110 = CAHALF signal (available in Center-Aligned modes only)(4)
0101 = PCI Fault active output signal
0100 = PCI Current-limit active output signal
0011 = PCI Feed-forward active output signal
0010 = PCI Sync active output signal
0001 = PWM Generator output signal(3)
0000 = Source is selected by the PGTRGSEL<2:0> bits
bit 3 Unimplemented: Read as ‘0’
Note 1: The event signal is stretched using peripheral_clk because different PWM Generators may be operating
from different clock sources.
2: No event will be produced if the selected PWM Generator is not present.
3: This is the PWM Generator output signal prior to output mode logic and any output override logic.
4: This signal should be the PGx_clk domain signal prior to any synchronization into the system clock
domain.
5: ‘y’ denotes a common instance (A-F).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 272 2017-2018 Microchip Technology Inc.
bit 2-0 EVTyPGS<2:0>: PWM Event Source Selection bits(2)
111 = PWM Generator 8
110 = PWM Generator 7
...
000 = PWM Generator 1
REGISTER 12-10: PWMEVTy: PWM EVENT OUTPUT CONTROL REGISTER y(5) (CONTINUED)
Note 1: The event signal is stretched using peripheral_clk because different PWM Generators may be operating
from different clock sources.
2: No event will be produced if the selected PWM Generator is not present.
3: This is the PWM Generator output signal prior to output mode logic and any output override logic.
4: This signal should be the PGx_clk domain signal prior to any synchronization into the system clock
domain.
5: ‘y’ denotes a common instance (A-F).
2017-2018 Microchip Technology Inc. DS70005349E-page 273
dsPIC33CK256MP508 FAMILY
REGISTER 12-11: LFSR: LINEAR FEEDBACK SHIFT REGISTER
U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— LFSR<14:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
LFSR<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-0 LFSR<14:0>: Linear Feedback Shift Register bits
A read of this register will provide a 15-bit pseudorandom value.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 274 2017-2018 Microchip Technology Inc.
REGISTER 12-12: PGxCONL: PWM GENERATOR x CONTROL REGISTER LOW
R/W-0 r-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
ON — — — — TRGCNT2 TRGCNT1 TRGCNT0
bit 15 bit 8
R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
HREN —— CLKSEL1 CLKSEL0 MODSEL2 MODSEL1 MODSEL0
bit 7 bit 0
Legend: r = Reserved bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ON: Enable bit
1 = PWM Generator is enabled
0 = PWM Generator is not enabled
bit 14 Reserved: Maintain as ‘0’
bit 13-11 Unimplemented: Read as ‘0’
bit 10-8 TRGCNT<2:0>: Trigger Count Select bits
111 = PWM Generator produces eight PWM cycles after triggered
110 = PWM Generator produces seven PWM cycles after triggered
101 = PWM Generator produces six PWM cycles after triggered
100 = PWM Generator produces five PWM cycles after triggered
011 = PWM Generator produces four PWM cycles after triggered
010 = PWM Generator produces three PWM cycles after triggered
001 = PWM Generator produces two PWM cycles after triggered
000 = PWM Generator produces one PWM cycle after triggered
bit 7 HREN: PWM Generator x High-Resolution Enable bit
1 = PWM Generator x operates in High-Resolution mode(2)
0 = PWM Generator x operates in standard resolution
bit 6-5 Unimplemented: Read as ‘0’
bit 4-3 CLKSEL<1:0>: Clock Selection bits
11 = PWM Generator uses Master clock scaled by frequency scaling circuit(1)
10 = PWM Generator uses Master clock divided by clock divider circuit(1)
01 = PWM Generator uses Master clock selected by the MCLKSEL<1:0> (PCLKCON<1:0>) control bits
00 = No clock selected, PWM Generator is in lowest power state (default)
bit 2-0 MODSEL<2:0>: Mode Selection bits
111 = Dual Edge Center-Aligned PWM mode (interrupt/register update twice per cycle)
110 = Dual Edge Center-Aligned PWM mode (interrupt/register update once per cycle)
101 = Double-Update Center-Aligned PWM mode
100 = Center-Aligned PWM mode
011 = Reserved
010 = Independent Edge PWM mode, dual output
001 = Variable Phase PWM mode
000 = Independent Edge PWM mode
Note 1: The PWM Generator time base operates from the frequency scaling circuit clock, effectively scaling the
duty cycle and period of the PWM Generator output.
2: Input frequency of 500 MHz must be used for High-Resolution mode.
2017-2018 Microchip Technology Inc. DS70005349E-page 275
dsPIC33CK256MP508 FAMILY
REGISTER 12-13: PGxCONH: PWM GENERATOR x CONTROL REGISTER HIGH
R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
MDCSEL MPERSEL MPHSEL — MSTEN UPDMOD2 UPDMOD1 UPDMOD0
bit 15 bit 8
r-0 R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
—TRGMOD——SOCS3
(1,2,3)SOCS2(1,2,3)SOCS1(1,2,3)SOCS0(1,2,3)
bit 7 bit 0
Legend: r = Reserved bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 MDCSEL: Master Duty Cycle Register Select bit
1 = PWM Generator uses MDC register
0 = PWM Generator uses PGxDC register
bit 14 MPERSEL: Master Period Register Select bit
1 = PWM Generator uses MPER register
0 = PWM Generator uses PGxPER register
bit 13 MPHSEL: Master Phase Register Select bit
1 = PWM Generator uses MPHASE register
0 = PWM Generator uses PGxPHASE register
bit 12 Unimplemented: Read as ‘0’
bit 11 MSTEN: Master Update Enable bit
1 = PWM Generator broadcasts software set/clear of the UPDREQ status bit and EOC signal to other
PWM Generators
0 = PWM Generator does not broadcast the UPDREQ status bit state or EOC signal
bit 10-8 UPDMOD<2:0>: PWM Buffer Update Mode Selection bits
011 = Slaved immediate update
Data registers immediately, or as soon as possible, when a Master update request is received. A
Master update request will be transmitted if MSTEN = 1 and UPDATE = 1 for the requesting PWM
Generator.
010 = Slaved SOC update
Data registers at start of next cycle if a Master update request is received. A master update
request will be transmitted if MSTEN = 1 and UPDATE = 1 for the requesting PWM Generator.
001 = Immediate update
Data registers immediately, or as soon as possible, if UPDATE = 1. The UPDATE status bit will
be cleared automatically after the update occurs (UPDATE = 1). The UPDATE status bit will be
cleared automatically after the update occurs.
000 = SOC update
Data registers at start of next PWM cycle if UPDATE = 1. The UPDATE status bit will be cleared
automatically after the update occurs.(1)
bit 7 Reserved: Maintain as ‘0’
Note 1: The PCI selected Sync signal is always available to be OR’d with the selected SOC signal per the
SOCS<3:0> bits if the PCI Sync function is enabled.
2: The source selected by the SOCS<3:0> bits MUST operate from the same clock source as the local PWM
Generator. If not, the source must be routed through the PCI Sync logic so the trigger signal may be
synchronized to the PWM Generator clock domain.
3: PWM Generators are grouped into groups of four: PG1-PG4 and PG5-PG8, if available. Any generator
within a group of four may be used to trigger another generator within the same group.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 276 2017-2018 Microchip Technology Inc.
bit 6 TRGMOD: PWM Generator Trigger Mode Selection bit
1 = PWM Generator operates in Retriggerable mode
0 = PWM Generator operates in Single Trigger mode
bit 5-4 Unimplemented: Read as ‘0’
bit 3-0 SOCS<3:0>: Start-of-Cycle Selection bits(1,2,3)
1111 = TRIG bit or PCI Sync function only (no hardware trigger source is selected)
1110-0101 = Reserved
0100 = Trigger output selected by PG4 or PG8 PGTRGSEL<2:0> bits (PGxEVTL<2:0>)
0011 = Trigger output selected by PG3 or PG7 PGTRGSEL<2:0> bits (PGxEVTL<2:0>)
0010 = Trigger output selected by PG2 or PG6 PGTRGSEL<2:0> bits (PGxEVTL<2:0>)
0001 = Trigger output selected by PG1 or PG5 PGTRGSEL<2:0> bits (PGxEVTL<2:0>)
0000 = Local EOC – PWM Generator is self-triggered
REGISTER 12-13: PGxCONH: PWM GENERATOR x CONTROL REGISTER HIGH (CONTINUED)
Note 1: The PCI selected Sync signal is always available to be OR’d with the selected SOC signal per the
SOCS<3:0> bits if the PCI Sync function is enabled.
2: The source selected by the SOCS<3:0> bits MUST operate from the same clock source as the local PWM
Generator. If not, the source must be routed through the PCI Sync logic so the trigger signal may be
synchronized to the PWM Generator clock domain.
3: PWM Generators are grouped into groups of four: PG1-PG4 and PG5-PG8, if available. Any generator
within a group of four may be used to trigger another generator within the same group.
2017-2018 Microchip Technology Inc. DS70005349E-page 277
dsPIC33CK256MP508 FAMILY
REGISTER 12-14: PGxSTAT: PWM GENERATOR x STATUS REGISTER
HS/C-0 HS/C-0 HS/C-0 HS/C-0 R-0 R-0 R-0 R-0
SEVT FLTEVT CLEVT FFEVT SACT FLTACT CLACT FFACT
bit 15 bit 8
W-0 W-0 HS/R/W-0 R-0 W-0 R-0 R-0 R-0
TRSET TRCLR CAP(1)UPDATE UPDREQ STEER CAHALF TRIG
bit 7 bit 0
Legend: C = Clearable bit HC = Hardware Clearable bit HS = Hardware Settable bit
R = Readable bit W = Writable bit ‘0’ = Bit is cleared x = Bit is unknown
-n = Value at POR ‘1’ = Bit is set U = Unimplemented bit, read as ‘0’
bit 15 SEVT: PCI Sync Event bit
1 = A PCI Sync event has occurred (rising edge on PCI Sync output or PCI Sync output is high when
module is enabled)
0 = No PCI Sync event has occurred
bit 14 FLTEVT: PCI Fault Active Status bit
1 = A Fault event has occurred (rising edge on PCI Fault output or PCI Fault output is high when module
is enabled)
0 = No Fault event has occurred
bit 13 CLEVT: PCI Current-Limit Status bit
1 = A PCI current-limit event has occurred (rising edge on PCI current-limit output or PCI current-limit out-
put is high when module is enabled)
0 = No PCI current-limit event has occurred
bit 12 FFEVT: PCI Feed-Forward Active Status bit
1 = A PCI feed-forward event has occurred (rising edge on PCI feed-forward output or PCI feed-forward
output is high when module is enabled)
0 = No PCI feed-forward event has occurred
bit 11 SACT: PCI Sync Status bit
1 = PCI Sync output is active
0 = PCI Sync output is inactive
bit 10 FLTACT: PCI Fault Active Status bit
1 = PCI Fault output is active
0 = PCI Fault output is inactive
bit 9 CLACT: PCI Current-Limit Status bit
1 = PCI current-limit output is active
0 = PCI current-limit output is inactive
bit 8 FFACT: PCI Feed-Forward Active Status bit
1 = PCI feed-forward output is active
0 = PCI feed-forward output is inactive
bit 7 TRSET: PWM Generator Software Trigger Set bit
User software writes a ‘1’ to this bit location to trigger a PWM Generator cycle. The bit location always
reads as ‘0’. The TRIG bit will indicate ‘1’ when the PWM Generator is triggered.
bit 6 TRCLR: PWM Generator Software Trigger Clear bit
User software writes a ‘1’ to this bit location to stop a PWM Generator cycle. The bit location always reads
as ‘0’. The TRIG bit will indicate ‘0’ when the PWM Generator is not triggered.
Note 1: User software may write a ‘1’ to CAP as a request to initiate a software capture. The CAP status bit will be
set when the capture event has occurred. No further captures will occur until CAP is cleared by software.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 278 2017-2018 Microchip Technology Inc.
bit 5 CAP: Capture Status bit(1)
1 = PWM Generator time base value has been captured in PGxCAP
0 = No capture has occurred
bit 4 UPDATE: PWM Data Register Update Status/Control bit
1 = PWM Data register update is pending – user Data registers are not writable
0 = No PWM Data register update is pending
bit 3 UPDREQ: PWM Data Register Update Request bit
User software writes a ‘1’ to this bit location to request a PWM Data register update. The bit location
always reads as ‘0’. The UPDATE status bit will indicate ‘1’ when an update is pending.
bit 2 STEER: Output Steering Status bit (Push-Pull Output mode only)
1 = PWM Generator is in 2nd cycle of Push-Pull mode
0 = PWM Generator is in 1st cycle of Push-Pull mode
bit 1 CAHALF: Half Cycle Status bit (Center-Aligned modes only)
1 = PWM Generator is in 2nd half of time base cycle
0 = PWM Generator is in 1st half of time base cycle
bit 0 TRIG: PWM Trigger Status bit
1 = PWM Generator is triggered and PWM cycle is in progress
0 = No PWM cycle is in progress
REGISTER 12-14: PGxSTAT: PWM GENERATOR x STATUS REGISTER (CONTINUED)
Note 1: User software may write a ‘1’ to CAP as a request to initiate a software capture. The CAP status bit will be
set when the capture event has occurred. No further captures will occur until CAP is cleared by software.
2017-2018 Microchip Technology Inc. DS70005349E-page 279
dsPIC33CK256MP508 FAMILY
REGISTER 12-15: PGxIOCONL: PWM GENERATOR x I/O CONTROL REGISTER LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CLMOD SWAP OVRENH OVRENL OVRDAT1 OVRDAT0 OSYNC1 OSYNC0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FLTDAT1 FLTDAT0 CLDAT1 CLDAT0 FFDAT1 FFDAT0 DBDAT1 DBDAT0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 CLMOD: Current-Limit Mode Select bit
1 = If PCI current limit is active, then the PWMxH and PWMxL output signals are inverted (bit flipping),
and the CLDAT<1:0> bits are not used
0 = If PCI current limit is active, then the CLDAT<1:0> bits define the PWM output levels
bit 14 SWAP: Swap PWM Signals to PWMxH and PWMxL Device Pins bit
1 = The PWMxH signal is connected to the PWMxL pin and the PWMxL signal is connected to the PWMxH pin
0 = PWMxH/L signals are mapped to their respective pins
bit 13 OVRENH: User Override Enable for PWMxH Pin bit
1 = OVRDAT1 provides data for output on the PWMxH pin
0 = PWM Generator provides data for the PWMxH pin
bit 12 OVRENL: User Override Enable for PWMxL Pin bit
1 = OVRDAT0 provides data for output on the PWMxL pin
0 = PWM Generator provides data for the PWMxL pin
bit 11-10 OVRDAT<1:0>: Data for PWMxH/PWMxL Pins if Override is Enabled bits
If OVERENH = 1, then OVRDAT1 provides data for PWMxH.
If OVERENL = 1, then OVRDAT0 provides data for PWMxL.
bit 9-8 OSYNC<1:0>: User Output Override Synchronization Control bits
11 = Reserved
10 = User output overrides via the OVRENH/L and OVRDAT<1:0> bits occur when specified by the
UPDMOD<2:0> bits in the PGxCONH register
01 = User output overrides via the OVRENH/L and OVRDAT<1:0> bits occur immediately (as soon as
possible)
00 = User output overrides via the OVRENH/L and OVRDAT<1:0> bits are synchronized to the local PWM
time base (next Start-of-Cycle)
bit 7-6 FLTDAT<1:0>: Data for PWMxH/PWMxL Pins if Fault Event is Active bits
If Fault is active, then FLTDAT1 provides data for PWMxH.
If Fault is active, then FLTDAT0 provides data for PWMxL.
bit 5-4 CLDAT<1:0>: Data for PWMxH/PWMxL Pins if Current-Limit Event is Active bits
If current limit is active, then CLDAT1 provides data for PWMxH.
If current limit is active, then CLDAT0 provides data for PWMxL.
bit 3-2 FFDAT<1:0>: Data for PWMxH/PWMxL Pins if Feed-Forward Event is Active bits
If feed-forward is active, then FFDAT1 provides data for PWMxH.
If feed-forward is active, then FFDAT0 provides data for PWMxL.
bit 1-0 DBDAT<1:0>: Data for PWMxH/PWMxL Pins if Debug Mode is Active bits
If Debug mode is active and device halted, then DBDAT1 provides data for PWMxH.
If Debug mode is active and device halted, then DBDAT0 provides data for PWMxL.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 280 2017-2018 Microchip Technology Inc.
REGISTER 12-16: PGxIOCONH: PWM GENERATOR x I/O CONTROL REGISTER HIGH
U-0 R/W-0 R/W-0 R/W-0 U-0 U-0 U-0 R/W-0
— CAPSRC2(1)CAPSRC1(1)CAPSRC0(1)— — — DTCMPSEL
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— PMOD1 PMOD0 PENH PENL POLH POLL
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 CAPSRC<2:0>: Time Base Capture Source Selection bits(1)
111 = Reserved
110 = Reserved
101 = Reserved
100 = Capture time base value at assertion of selected PCI Fault signal
011 = Capture time base value at assertion of selected PCI current-limit signal
010 = Capture time base value at assertion of selected PCI feed-forward signal
001 = Capture time base value at assertion of selected PCI Sync signal
000 = No hardware source selected for time base capture – software only
bit 11-9 Unimplemented: Read as ‘0’
bit 8 DTCMPSEL: Dead-Time Compensation Select bit
1 = Dead-time compensation is controlled by PCI feed-forward limit logic
0 = Dead-time compensation is controlled by PCI Sync logic
bit 7-6 Unimplemented: Read as ‘0’
bit 5-4 PMOD<1:0>: PWM Generator Output Mode Selection bits
11 = Reserved
10 = PWM Generator outputs operate in Push-Pull mode
01 = PWM Generator outputs operate in Independent mode
00 = PWM Generator outputs operate in Complementary mode
bit 3 PENH: PWMxH Output Port Enable bit
1 = PWM Generator controls the PWMxH output pin
0 = PWM Generator does not control the PWMxH output pin
bit 2 PENL: PWMxL Output Port Enable bit
1 = PWM Generator controls the PWMxL output pin
0 = PWM Generator does not control the PWMxL output pin
bit 1 POLH: PWMxH Output Polarity bit
1 = Output pin is active-low
0 = Output pin is active-high
bit 0 POLL: PWMxL Output Polarity bit
1 = Output pin is active-low
0 = Output pin is active-high
Note 1: A capture may be initiated in software at any time by writing a ‘1’ to CAP (PGxSTAT<5>).
2017-2018 Microchip Technology Inc. DS70005349E-page 281
dsPIC33CK256MP508 FAMILY
REGISTER 12-17: PGxEVTL: PWM GENERATOR x EVENT REGISTER LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ADTR1PS4 ADTR1PS3 ADTR1PS2 ADTR1PS1 ADTR1PS0 ADTR1EN3 ADTR1EN2 ADTR1EN1
bit 15 bit 8
U-0U-0 U-0R/W-0R/W-0R/W-0 R/W-0 R/W-0
— — — UPDTRG1 UPDTRG0 PGTRGSEL2(1)PGTRGSEL1(1)PGTRGSEL0(1)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 ADTR1PS<4:0>: ADC Trigger 1 Postscaler Selection bits
11111 = 1:32
...
00010 = 1:3
00001 = 1:2
00000 = 1:1
bit 10 ADTR1EN3: ADC Trigger 1 Source is PGxTRIGC Compare Event Enable bit
1 = PGxTRIGC register compare event is enabled as trigger source for ADC Trigger 1
0 = PGxTRIGC register compare event is disabled as trigger source for ADC Trigger 1
bit 9 ADTR1EN2: ADC Trigger 1 Source is PGxTRIGB Compare Event Enable bit
1 = PGxTRIGB register compare event is enabled as trigger source for ADC Trigger 1
0 = PGxTRIGB register compare event is disabled as trigger source for ADC Trigger 1
bit 8 ADTR1EN1: ADC Trigger 1 Source is PGxTRIGA Compare Event Enable bit
1 = PGxTRIGA register compare event is enabled as trigger source for ADC Trigger 1
0 = PGxTRIGA register compare event is disabled as trigger source for ADC Trigger 1
bit 7-5 Unimplemented: Read as ‘0’
bit 4-3 UPDTRG<1:0>: Update Trigger Select bits
11 = A write of the PGxTRIGA register automatically sets the UPDATE bit
10 = A write of the PGxPHASE register automatically sets the UPDATE bit
01 = A write of the PGxDC register automatically sets the UPDATE bit
00 = User must set the UPDATE bit (PGxSTAT<4>) manually
bit 2-0 PGTRGSEL<2:0>: PWM Generator Trigger Output Selection bits(1)
111 = Reserved
110 = Reserved
101 = Reserved
100 = Reserved
011 = PGxTRIGC compare event is the PWM Generator trigger
010 = PGxTRIGB compare event is the PWM Generator trigger
001 = PGxTRIGA compare event is the PWM Generator trigger
000 = EOC event is the PWM Generator trigger
Note 1: These events are derived from the internal PWM Generator time base comparison events.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 282 2017-2018 Microchip Technology Inc.
REGISTER 12-18: PGxEVTH: PWM GENERATOR x EVENT REGISTER HIGH
R/W-0 R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-0 R/W-0
FLTIEN(1)CLIEN(2)FFIEN(3)SIEN(4)—— IEVTSEL1 IEVTSEL0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ADTR2EN3 ADTR2EN2 ADTR2EN1 ADTR1OFS4 ADTR1OFS3 ADTR1OFS2 ADTR1OFS1 ADTR1OFS0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 FLTIEN: PCI Fault Interrupt Enable bit(1)
1 = Fault interrupt is enabled
0 = Fault interrupt is disabled
bit 14 CLIEN: PCI Current-Limit Interrupt Enable bit(2)
1 = Current-limit interrupt is enabled
0 = Current-limit interrupt is disabled
bit 13 FFIEN: PCI Feed-Forward Interrupt Enable bit(3)
1 = Feed-forward interrupt is enabled
0 = Feed-forward interrupt is disabled
bit 12 SIEN: PCI Sync Interrupt Enable bit(4)
1 = Sync interrupt is enabled
0 = Sync interrupt is disabled
bit 11-10 Unimplemented: Read as ‘0’
bit 9-8 IEVTSEL<1:0>: Interrupt Event Selection bits
11 = Time base interrupts are disabled (Sync, Fault, current-limit and feed-forward events can be
independently enabled)
10 = Interrupts CPU at ADC Trigger 1 event
01 = Interrupts CPU at TRIGA compare event
00 = Interrupts CPU at EOC
bit 7 ADTR2EN3: ADC Trigger 2 Source is PGxTRIGC Compare Event Enable bit
1 = PGxTRIGC register compare event is enabled as trigger source for ADC Trigger 2
0 = PGxTRIGC register compare event is disabled as trigger source for ADC Trigger 2
bit 6 ADTR2EN2: ADC Trigger 2 Source is PGxTRIGB Compare Event Enable bit
1 = PGxTRIGB register compare event is enabled as trigger source for ADC Trigger 2
0 = PGxTRIGB register compare event is disabled as trigger source for ADC Trigger 2
bit 5 ADTR2EN1: ADC Trigger 2 Source is PGxTRIGA Compare Event Enable bit
1 = PGxTRIGA register compare event is enabled as trigger source for ADC Trigger 2
0 = PGxTRIGA register compare event is disabled as trigger source for ADC Trigger 2
bit 4-0 ADTR1OFS<4:0>: ADC Trigger 1 Offset Selection bits
11111 = Offset by 31 trigger events
...
00010 = Offset by 2 trigger events
00001 = Offset by 1 trigger event
00000 = No offset
Note 1: An interrupt is only generated on the rising edge of the PCI Fault active signal.
2: An interrupt is only generated on the rising edge of the PCI current-limit active signal.
3: An interrupt is only generated on the rising edge of the PCI feed-forward active signal.
4: An interrupt is only generated on the rising edge of the PCI Sync active signal.
2017-2018 Microchip Technology Inc. DS70005349E-page 283
dsPIC33CK256MP508 FAMILY
REGISTER 12-19: PGxyPCIL: PWM GENERATOR xy PCI REGISTER LOW
(x = PWM GENERATOR #; y = F, CL, FF OR S)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TSYNCDIS TERM2 TERM1 TERM0 AQPS AQSS2 AQSS1 AQSS0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SWTERM PSYNC PPS PSS4 PSS3 PSS2 PSS1 PSS0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 TSYNCDIS: Termination Synchronization Disable bit
1 = Termination of latched PCI occurs immediately
0 = Termination of latched PCI occurs at PWM EOC
bit 14-12 TERM<2:0>: Termination Event Selection bits
111 = Selects PCI Source #9
110 = Selects PCI Source #8
101 = Selects PCI Source #1 (PWM Generator output selected by the PWMPCI<2:0> bits)
100 = PGxTRIGC trigger event
011 = PGxTRIGB trigger event
010 = PGxTRIGA trigger event
001 = Auto-Terminate: Terminate when PCI source transitions from active to inactive
000 = Manual Terminate: Terminate on a write of ‘1’ to the SWTERM bit location
bit 11 AQPS: Acceptance Qualifier Polarity Select bit
1 = Inverted
0 = Not inverted
bit 10-8 AQSS<2:0>: Acceptance Qualifier Source Selection bits
111 = SWPCI control bit only (qualifier forced to ‘0’)
110 = Selects PCI Source #9
101 = Selects PCI Source #8
100 = Selects PCI Source #1 (PWM Generator output selected by the PWMPCI<2:0> bits)
011 = PWM Generator is triggered
010 = LEB is active
001 = Duty cycle is active (base PWM Generator signal)
000 = No acceptance qualifier is used (qualifier forced to ‘1’)
bit 7 SWTERM: PCI Software Termination bit
A write of ‘1’ to this location will produce a termination event. This bit location always reads as ‘0’.
bit 6 PSYNC: PCI Synchronization Control bit
1 = PCI source is synchronized to PWM EOC
0 = PCI source is not synchronized to PWM EOC
bit 5 PPS: PCI Polarity Select bit
1 = Inverted
0 = Not inverted
dsPIC33CK256MP508 FAMILY
DS70005349E-page 284 2017-2018 Microchip Technology Inc.
bit 4-0 PSS<4:0>: PCI Source Selection bits
11111 = CLC1
11110 = Reserved
11101 = Comparator 3 output
11100 = Comparator 2 output
11011 = Comparator 1 output
11010 = PWM Event D
11001 = PWM Event C
11000 = PWM Event B
10111 = PWM Event A
10110 = Device pin, PCI<22>
10101 = Device pin, PCI<21>
10100 = Device pin, PCI<20>
10011 = Device pin, PCI<19>
10010 = RPn input, PCI18R
10001 = RPn input, PCI17R
10000 = RPn input, PCI16R
01111 = RPn input, PCI15R
01110 = RPn input, PCI14R
01101 = RPn input, PCI13R
01100 = RPn input, PCI12R
01011 = RPn input, PCI11R
01010 = RPn input, PCI10R
01001 = RPn input, PCI9R
01000 = RPn input, PCI8R
00111 = Reserved
00110 = Reserved
00101 = Reserved
00100 = Reserved
00011 = Internally connected to Combo Trigger B
00010 = Internally connected to Combo Trigger A
00001 = Internally connected to the output of PWMPCI<2:0> MUX
00000 = Tied to ‘0’
REGISTER 12-19: PGxyPCIL: PWM GENERATOR xy PCI REGISTER LOW
(x = PWM GENERATOR #; y = F, CL, FF OR S) (CONTINUED)
2017-2018 Microchip Technology Inc. DS70005349E-page 285
dsPIC33CK256MP508 FAMILY
REGISTER 12-20: PGxyPCIH: PWM GENERATOR xy PCI REGISTER HIGH
(x = PWM GENERATOR #; y = F, CL, FF OR S)
R/W-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0
BPEN BPSEL2(1)BPSEL1(1)BPSEL0(1)— ACP2 ACP1 ACP0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SWPCI SWPCIM1 SWPCIM0 LATMOD TQPS TQSS2 TQSS1 TQSS0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 BPEN: PCI Bypass Enable bit
1 = PCI function is enabled and local PCI logic is bypassed; PWM Generator will be controlled by PCI
function in the PWM Generator selected by the BPSEL<2:0> bits
0 = PCI function is not bypassed
bit 14-12 BPSEL<2:0>: PCI Bypass Source Selection bits(1)
111 = PCI control is sourced from PWM Generator 8 PCI logic when BPEN = 1
110 = PCI control is sourced from PWM Generator 7 PCI logic when BPEN = 1
101 = PCI control is sourced from PWM Generator 6 PCI logic when BPEN = 1
100 = PCI control is sourced from PWM Generator 5 PCI logic when BPEN = 1
011 = PCI control is sourced from PWM Generator 4 PCI logic when BPEN = 1
010 = PCI control is sourced from PWM Generator 3 PCI logic when BPEN = 1
001 = PCI control is sourced from PWM Generator 2 PCI logic when BPEN = 1
000 = PCI control is sourced from PWM Generator 1 PCI logic when BPEN = 1
bit 11 Unimplemented: Read as ‘0’
bit 10-8 ACP<2:0>: PCI Acceptance Criteria Selection bits
111 = Reserved
110 = Reserved
101 = Latched any edge
100 = Latched rising edge
011 = Latched
010 = Any edge
001 = Rising edge
000 = Level-sensitive
bit 7 SWPCI: Software PCI Control bit
1 = Drives a ‘1’ to PCI logic assigned to by the SWPCIM<1:0> control bits
0 = Drives a ‘0’ to PCI logic assigned to by the SWPCIM<1:0> control bits
bit 6-5 SWPCIM<1:0>: Software PCI Control Mode bits
11 = Reserved
10 = SWPCI bit is assigned to termination qualifier logic
01 = SWPCI bit is assigned to acceptance qualifier logic
00 = SWPCI bit is assigned to PCI acceptance logic
bit 4 LATMOD: PCI SR Latch Mode bit
1 = SR latch is Reset-dominant in Latched Acceptance modes
0 = SR latch is Set-dominant in Latched Acceptance modes
Note 1: Selects ‘0’ if selected PWM Generator is not present.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 286 2017-2018 Microchip Technology Inc.
bit 3 TQPS: Termination Qualifier Polarity Select bit
1 = Inverted
0 = Not inverted
bit 2-0 TQSS<2:0>: Termination Qualifier Source Selection bits
111 = SWPCI control bit only (qualifier forced to ‘0’)
110 = Selects PCI Source #9
101 = Selects PCI Source #8
100 = Selects PCI Source #1 (PWM Generator output selected by the PWMPCI<2:0> bits)
011 = PWM Generator is triggered
010 = LEB is active
001 = Duty cycle is active (base PWM Generator signal)
000 = No termination qualifier used (qualifier forced to ‘1’)
REGISTER 12-20: PGxyPCIH: PWM GENERATOR xy PCI REGISTER HIGH
(x = PWM GENERATOR #; y = F, CL, FF OR S) (CONTINUED)
Note 1: Selects ‘0’ if selected PWM Generator is not present.
2017-2018 Microchip Technology Inc. DS70005349E-page 287
dsPIC33CK256MP508 FAMILY
REGISTER 12-21: PGxLEBL: PWM GENERATOR x LEADING-EDGE BLANKING REGISTER LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
LEB<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R-0(1)R-0(1)R-0(1)
LEB<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 LEB<15:0>: Leading-Edge Blanking Period bits
Leading-Edge Blanking period. The three LSbs of the blanking time are not used, providing a blanking
resolution of eight PGx_clks. The minimum blanking period is eight PGx_clks which occurs when
LEB<15:3> = 0.
Note 1: Bits<2:0> are read-only and always remain as ‘0’.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 288 2017-2018 Microchip Technology Inc.
REGISTER 12-22: PGxLEBH: PWM GENERATOR x LEADING-EDGE BLANKING REGISTER HIGH
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
— — — — —PWMPCI2
(1)PWMPCI1(1)PWMPCI0(1)
bit 15 bit 8
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — — PHR PHF PLR PLF
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 Unimplemented: Read as ‘0’
bit 10-8 PWMPCI<2:0>: PWM Source for PCI Selection bits(1)
111 = PWM Generator #8 output is made available to PCI logic
110 = PWM Generator #7 output is made available to PCI logic
101 = PWM Generator #6 output is made available to PCI logic
100 = PWM Generator #5 output is made available to PCI logic
011 = PWM Generator #4 output is made available to PCI logic
010 = PWM Generator #3 output is made available to PCI logic
001 = PWM Generator #2 output is made available to PCI logic
000 = PWM Generator #1 output is made available to PCI logic
bit 7-4 Unimplemented: Read as ‘0’
bit 3 PHR: PWMxH Rising Edge Trigger Enable bit
1 = Rising edge of PWMxH will trigger the LEB duration counter
0 = LEB ignores the rising edge of PWMxH
bit 2 PHF: PWMxH Falling Edge Trigger Enable bit
1 = Falling edge of PWMxH will trigger the LEB duration counter
0 = LEB ignores the falling edge of PWMxH
bit 1 PLR: PWMxL Rising Edge Trigger Enable bit
1 = Rising edge of PWMxL will trigger the LEB duration counter
0 = LEB ignores the rising edge of PWMxL
bit 0 PLF: PWMxL Falling Edge Trigger Enable bit
1 = Falling edge of PWMxL will trigger the LEB duration counter
0 = LEB ignores the falling edge of PWMxL
Note 1: The selected PWM Generator source does not affect the LEB counter. This source can be optionally
used as a PCI input, PCI qualifier, PCI terminator or PCI terminator qualifier (see the description in
Register 12-19 and Register 12-20 for more information).
2017-2018 Microchip Technology Inc. DS70005349E-page 289
dsPIC33CK256MP508 FAMILY
REGISTER 12-23: PGxPHASE: PWM GENERATOR x PHASE REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PGxPHASE<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PGxPHASE<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PGxPHASE<15:0>: PWM Generator x Phase Register bits
REGISTER 12-24: PGxDC: PWM GENERATOR x DUTY CYCLE REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PGxDC<15:8>(1)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PGxDC<7:0>(1)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PGxDC<15:0>: PWM Generator x Duty Cycle Register bits(1)
Note 1: Duty cycle values less than ‘0x0008’ should not be used (‘0x0020’ in High-Resolution mode).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 290 2017-2018 Microchip Technology Inc.
REGISTER 12-25: PGxDCA: PWM GENERATOR x DUTY CYCLE ADJUSTMENT REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PGxDCA<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-0 PGxDCA<7:0>: PWM Generator x Duty Cycle Adjustment Value bits
Depending on the state of the selected PCI source, the PGxDCA value will be added to the value in the
PGxDC register to create the effective duty cycle. When the PCI source is active, PGxDCA is added.
REGISTER 12-26: PGxPER: PWM GENERATOR x PERIOD REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PGxPER<15:8>(1)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PGxPER<7:0>(1)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PGxPER<15:0>: PWM Generator x Period Register bits(1)
Note 1: Period values less than ‘0x0010’ should not be used (‘0x0080’ in High-Resolution mode).
2017-2018 Microchip Technology Inc. DS70005349E-page 291
dsPIC33CK256MP508 FAMILY
REGISTER 12-27: PGxTRIGA: PWM GENERATOR x TRIGGER A REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PGxTRIGA<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PGxTRIGA<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PGxTRIGA<15:0>: PWM Generator x Trigger A Register bits
REGISTER 12-28: PGxTRIGB: PWM GENERATOR x TRIGGER B REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PGxTRIGB<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PGxTRIGB<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PGxTRIGB<15:0>: PWM Generator x Trigger B Register bits
REGISTER 12-29: PGxTRIGC: PWM GENERATOR x TRIGGER C REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PGxTRIGC<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PGxTRIGC<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PGxTRIGC<15:0>: PWM Generator x Trigger C Register bits
dsPIC33CK256MP508 FAMILY
DS70005349E-page 292 2017-2018 Microchip Technology Inc.
REGISTER 12-30: PGxDTL: PWM GENERATOR x DEAD-TIME REGISTER LOW
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
——DTL<13:8>
(1)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DTL<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-0 DTL<13:0>: PWMxL Dead-Time Delay bits(1)
Note 1: DTL<13:11> bits are not available when HREN (PGxCONL<7>) = 0.
REGISTER 12-31: PGxDTH: PWM GENERATOR x DEAD-TIME REGISTER HIGH
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— DTH<13:8>(1)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DTH<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-0 DTH<13:0>: PWMxH Dead-Time Delay bits(1)
Note 1: DTH<13:11> bits are not available when HREN (PGxCONL<7>) = 0.
2017-2018 Microchip Technology Inc. DS70005349E-page 293
dsPIC33CK256MP508 FAMILY
REGISTER 12-32: PGxCAP: PWM GENERATOR x CAPTURE REGISTER
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
PGxCAP<15:8>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
PGxCAP<7:0>(1)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PGxCAP<15:0>: PGx Time Base Capture bits(1)
Note 1: PGxCAP<1:0> will read as ‘0’ in Standard Resolution mode. PGxCAP<4:0> will read as ‘0’ in
High-Resolution mode.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 294 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 295
dsPIC33CK256MP508 FAMILY
13.0 HIGH-SPEED, 12-BIT
ANALOG-TO-DIGITAL
CONVERTER (ADC)
The dsPIC33CK256MP508 devices have a high-speed,
12-bit Analog-to-Digital Converter (ADC) that features
a low conversion latency, high resolution and over-
sampling capabilities to improve performance in
AC/DC, DC/DC power converters. The devices
implement the ADC with three SAR cores, two
dedicated and one shared.
13.1 ADC Features Overview
The High-Speed, 12-Bit Multiple SARs Analog-to-Digital
Converter (ADC) includes the following features:
• Three ADC Cores: Two Dedicated Cores and
One Shared (common) Core
• User-Configurable Resolution of up to 12 Bits for
each Core
• Up to 3.5 Msps Conversion Rate per Channel at
12-Bit Resolution
• Low-Latency Conversion
• Up to 24 Analog Input Channels, with a Separate
16-Bit Conversion Result Register for each Input
• Conversion Result can be Formatted as Unsigned
or Signed Data, on a per Channel Basis, for All
Channels
• Simultaneous Sampling of up to Three Analog
Inputs
• Channel Scan Capability
• Multiple Conversion Trigger Options for each
Core, including:
- PWM triggers from CPU cores
- MCCP/SCCP modules triggers
- CLC modules triggers
- External pin trigger event (ADTRG31)
- Software trigger
• Four Integrated Digital Comparators with
Dedicated Interrupts:
- Multiple comparison options
- Assignable to specific analog inputs
• Four Oversampling Filters with Dedicated
Interrupts:
- Provide increased resolution
- Assignable to a specific analog input
The module consists of three independent SAR ADC
cores. Simplified block diagrams of the Multiple SARs
12-Bit ADC are shown in Figure 13-1 and Figure 13-2.
The analog inputs (channels) are connected through
multiplexers and switches to the Sample-and-Hold
(S&H) circuit of each ADC core. The core uses the
channel information (the output format, the Measure-
ment mode and the input number) to process the analog
sample. When conversion is complete, the result is
stored in the result buffer for the specific analog input,
and passed to the digital filter and digital comparator if
they were configured to use data from this particular
channel.
The ADC module can sample up to three inputs at a
time (two inputs from the dedicated SAR cores and one
from the shared SAR core). If multiple ADC inputs
request conversion on the shared core, the module will
convert them in a sequential manner, starting with the
lowest order input.
The ADC provides each analog input the ability to
specify its own trigger source. This capability allows the
ADC to sample and convert analog inputs that are
associated with PWM generators operating on
independent time bases.
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to “12-Bit High-Speed,
Multiple SARs A/D Converter (ADC)”
(www.microchip.com/DS70005213) in the
“dsPIC33/PIC24 Family Reference
Manual”.
2: Some registers and associated bits
described in this section may not be
available on all devices due to the
number of implemented ADC channels.
Refer to Ta b l e 1 and Tab le 2 for ADC
channel availability on package variants.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 296 2017-2018 Microchip Technology Inc.
FIGURE 13-1: ADC MODULE BLOCK DIAGRAM
Voltage Reference
Clock Selection
(CLKSEL<1:0>)
AVDD AVSS
Instruction
Clock FRC Auxiliary
Reference
Reference
Reference
Output Data
Clock
Clock
Clock
Output Data
Output Data
Digital Comparator 0 ADCMP0 Interrupt
Digital Comparator 1 ADCMP1 Interrupt
Digital Filter 0 ADFL0DAT
ADCBUF0
ADCBUF1
ADCBUF25
ADCAN0 Interrupt
ADCAN1 Interrupt
ADCAN23 Interrupt
ADFLTR0 Interrupt
Dedicated
AN2-AN23
Note 1: Band Gap Reference (VBG) is an internal analog input and is not available on device pins.
2: If the dedicated core uses an alternate channel, then shared core function cannot be used.
ANN0
ANA0
AN0
ADC Core 1(2)
Dedicated
ADC Core 0(2)
Shared
ADC Core
Clock
Digital Filter 1 ADFL1DAT
ADFLTR1 Interrupt
(REFSEL<2:0>)
Divider
(CLKDIV<5:0>)
Digital Comparator 2 ADCMP2 Interrupt
Digital Comparator 3 ADCMP3 Interrupt
Digital Filter 2 ADFL2DAT
ADFLTR2 Interrupt
Digital Filter 3 ADFL3DAT
ADFLTR3 Interrupt
Temperature
Sensor (AN24)
Band Gap 1.2V
(AN25)
ANN1
ANA1
AN1
ANN2
2017-2018 Microchip Technology Inc. DS70005349E-page 297
dsPIC33CK256MP508 FAMILY
FIGURE 13-2: ADC SHARED CORE BLOCK DIAGRAM
FIGURE 13-3: DEDICATED ADC CORE
13.2 Analog-to-Digital Converter
Resources
Many useful resources are provided on the main
product page of the Microchip website for the devices
listed in this data sheet. This product page contains the
latest updates and additional information.
13.2.1 KEY RESOURCES
•“12-Bit High-Speed, Multiple SARs A/D
Converter (ADC)” (DS70005213) in the
“dsPIC33/PIC24 Family Reference Manual”
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All Related “dsPIC33/PIC24 Family Reference
Manual” Sections
• Development Tools
Shared
Sample-
and-Hold
AN2
AN23 +
Analog Channel Number
from Current Trigger
12-Bit
SAR
ADC Core
Clock
Reference
Clock
Output Data
Sampling Time
Divider
SHRADCS<6:0>
ADC
SHRSAMC<9:0>
–
Temperature Sensor (AN24)
Band Gap 1.2V (AN25)
ANN2
Reference
Output Data
Clock
12-Bit SAR
ADC
ADC Core
Clock Divider
(ADCS<6:0>
bits)
Trigger Stops
Sampling
Sample-
and-Hold
Positive Input
Selection
(CxCHS<1:0>
bits)
Negative
Input
Selection
(DIFFx bit)
AV
SS
ANAx
ANNx
ANx
“+”
“–”
dsPIC33CK256MP508 FAMILY
DS70005349E-page 298 2017-2018 Microchip Technology Inc.
13.3 Control Registers
REGISTER 13-1: ADCON1L: ADC CONTROL REGISTER 1 LOW
R/W-0 U-0 R/W-0 U-0 r-0 U-0 U-0 U-0
ADON(1)—ADSIDL— — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
Legend: r = Reserved bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ADON: ADC Enable bit(1)
1 = ADC module is enabled
0 = ADC module is off
bit 14 Unimplemented: Read as ‘0’
bit 13 ADSIDL: ADC Stop in Idle Mode bit
1 = Discontinues module operation when device enters Idle mode
0 = Continues module operation in Idle mode
bit 12 Unimplemented: Read as ‘0’
bit 11 Reserved: Maintain as ‘0’
bit 10-0 Unimplemented: Read as ‘0’
Note 1: Set the ADON bit only after the ADC module has been configured. Changing ADC Configuration bits when
ADON = 1 will result in unpredictable behavior.
2017-2018 Microchip Technology Inc. DS70005349E-page 299
dsPIC33CK256MP508 FAMILY
REGISTER 13-2: ADCON1H: ADC CONTROL REGISTER 1 HIGH
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-1 R/W-1 U-0 U-0 U-0 U-0 U-0
FORM SHRRES1 SHRRES0 — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7 FORM: Fractional Data Output Format bit
1 = Fractional
0 = Integer
bit 6-5 SHRRES<1:0>: Shared ADC Core Resolution Selection bits
11 = 12-bit resolution
10 = 10-bit resolution
01 = 8-bit resolution
00 = 6-bit resolution
bit 4-0 Unimplemented: Read as ‘0’
dsPIC33CK256MP508 FAMILY
DS70005349E-page 300 2017-2018 Microchip Technology Inc.
REGISTER 13-3: ADCON2L: ADC CONTROL REGISTER 2 LOW
R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
REFCIE REFERCIE — EIEN PTGEN SHREISEL2(1)SHREISEL1(1)SHREISEL0(1)
bit 15 bit 8
U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— SHRADCS6 SHRADCS5 SHRADCS4 SHRADCS3 SHRADCS2 SHRADCS1 SHRADCS0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 REFCIE: Band Gap and Reference Voltage Ready Common Interrupt Enable bit
1 = Common interrupt will be generated when the band gap will become ready
0 = Common interrupt is disabled for the band gap ready event
bit 14 REFERCIE: Band Gap or Reference Voltage Error Common Interrupt Enable bit
1 = Common interrupt will be generated when a band gap or reference voltage error is detected
0 = Common interrupt is disabled for the band gap and reference voltage error event
bit 13 Unimplemented: Read as ‘0’
bit 12 EIEN: Early Interrupts Enable bit
1 = The early interrupt feature is enabled for the input channel interrupts (when the EISTATx flag is set)
0 = The individual interrupts are generated when conversion is done (when the ANxRDY flag is set)
bit 11 PTGEN: External Conversion Request Interface bit
Setting this bit will enable the PTG to request conversion of an ADC input.
bit 10-8 SHREISEL<2:0>: Shared Core Early Interrupt Time Selection bits(1)
111 = Early interrupt is set and interrupt is generated 8 TADCORE clocks prior to when the data is ready
110 = Early interrupt is set and interrupt is generated 7 T
ADCORE clocks prior to when the data is ready
101 = Early interrupt is set and interrupt is generated 6 T
ADCORE clocks prior to when the data is ready
100 = Early interrupt is set and interrupt is generated 5 T
ADCORE clocks prior to when the data is ready
011 = Early interrupt is set and interrupt is generated 4 T
ADCORE clocks prior to when the data is ready
010 = Early interrupt is set and interrupt is generated 3 T
ADCORE clocks prior to when the data is ready
001 = Early interrupt is set and interrupt is generated 2 T
ADCORE clocks prior to when the data is ready
000 = Early interrupt is set and interrupt is generated 1 T
ADCORE clock prior to when the data is ready
bit 7 Unimplemented: Read as ‘0’
bit 6-0 SHRADCS<6:0>: Shared ADC Core Input Clock Divider bits
These bits determine the number of TCORESRC (Source Clock Periods) for one shared TADCORE (Core
Clock Period).
1111111 = 254 Source Clock Periods
...
0000011 = 6 Source Clock Periods
0000010 = 4 Source Clock Periods
0000001 = 2 Source Clock Periods
0000000 = 2 Source Clock Periods
Note 1: For the 6-bit shared ADC core resolution (SHRRES<1:0> = 00), the SHREISEL<2:0> settings,
from ‘100’ to ‘111’, are not valid and should not be used. For the 8-bit shared ADC core resolution
(SHRRES<1:0> = 01), the SHREISEL<2:0> settings, ‘110’ and ‘111’, are not valid and should not be used.
2017-2018 Microchip Technology Inc. DS70005349E-page 301
dsPIC33CK256MP508 FAMILY
REGISTER 13-4: ADCON2H: ADC CONTROL REGISTER 2 HIGH
HSC/R-0 HSC/R-0 U-0 r-0 r-0 r-0 R/W-0 R/W-0
REFRDY REFERR — — — — SHRSAMC9 SHRSAMC8
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SHRSAMC7 SHRSAMC6 SHRSAMC5 SHRSAMC4 SHRSAMC3 SHRSAMC2 SHRSAMC1 SHRSAMC0
bit 7 bit 0
Legend: r = Reserved bit U = Unimplemented bit, read as ‘0’
R = Readable bit W = Writable bit HSC = Hardware Settable/Clearable bit
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 REFRDY: Band Gap and Reference Voltage Ready Flag bit
1 = Band gap is ready
0 = Band gap is not ready
bit 14 REFERR: Band Gap or Reference Voltage Error Flag bit
1 = Band gap was removed after the ADC module was enabled (ADON = 1)
0 = No band gap error was detected
bit 13 Unimplemented: Read as ‘0’
bit 12-10 Reserved: Maintain as ‘0’
bit 9-0 SHRSAMC<9:0>: Shared ADC Core Sample Time Selection bits
These bits specify the number of shared ADC Core Clock Periods (TADCORE) for the shared ADC core
sample time.
1111111111 = 1025 TADCORE
...
0000000001 = 3 TADCORE
0000000000 = 2 TADCORE
dsPIC33CK256MP508 FAMILY
DS70005349E-page 302 2017-2018 Microchip Technology Inc.
REGISTER 13-5: ADCON3L: ADC CONTROL REGISTER 3 LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
HSC/R-0
R/W-0
HSC/R-0
REFSEL2 REFSEL1 REFSEL0 SUSPEND SUSPCIE SUSPRDY SHRSAMP CNVRTCH
bit 15 bit 8
R/W-0
HSC/R-0
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SWLCTRG SWCTRG CNVCHSEL5 CNVCHSEL4 CNVCHSEL3 CNVCHSEL2 CNVCHSEL1 CNVCHSEL0
bit 7 bit 0
Legend: U = Unimplemented bit, read as ‘0’
R = Readable bit W = Writable bit HSC = Hardware Settable/Clearable bit
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 REFSEL<2:0>: ADC Reference Voltage Selection bits
001-111 = Unimplemented: Do not use
bit 12 SUSPEND: All ADC Core Triggers Disable bit
1 = All new trigger events for all ADC cores are disabled
0 = All ADC cores can be triggered
bit 11 SUSPCIE: Suspend All ADC Cores Common Interrupt Enable bit
1 = Common interrupt will be generated when ADC core triggers are suspended (SUSPEND bit = 1)
and all previous conversions are finished (SUSPRDY bit becomes set)
0 = Common interrupt is not generated for suspend ADC cores event
bit 10 SUSPRDY: All ADC Cores Suspended Flag bit
1 = All ADC cores are suspended (SUSPEND bit = 1) and have no conversions in progress
0 = ADC cores have previous conversions in progress
bit 9 SHRSAMP: Shared ADC Core Sampling Direct Control bit
This bit should be used with the individual channel conversion trigger controlled by the CNVRTCH bit.
It connects an analog input, specified by the CNVCHSEL<5:0> bits, to the shared ADC core and allows
extending the sampling time. This bit is not controlled by hardware and must be cleared before the
conversion starts (setting CNVRTCH to ‘1’).
1 = Shared ADC core samples an analog input specified by the CNVCHSEL<5:0> bits
0 = Sampling is controlled by the shared ADC core hardware
bit 8 CNVRTCH: Software Individual Channel Conversion Trigger bit
1 = Single trigger is generated for an analog input specified by the CNVCHSEL<5:0> bits; when the bit
is set, it is automatically cleared by hardware on the next instruction cycle
0 = Next individual channel conversion trigger can be generated
bit 7 SWLCTRG: Software Level-Sensitive Common Trigger bit
1 = Triggers are continuously generated for all channels with the software, level-sensitive common
trigger selected as a source in the ADTRIGxL and ADTRIGxH registers
0 = No software, level-sensitive common triggers are generated
bit 6 SWCTRG: Software Common Trigger bit
1 = Single trigger is generated for all channels with the software; common trigger selected as a source
in the ADTRIGnL and ADTRIGxH registers; when the bit is set, it is automatically cleared by
hardware on the next instruction cycle
0 = Ready to generate the next software common trigger
bit 5-0 CNVCHSEL <5:0>: Channel Number Selection for Software Individual Channel Conversion Trigger bits
These bits define a channel to be converted when the CNVRTCH bit is set.
Value VREFH VREFL
000 AVDD AVSS
2017-2018 Microchip Technology Inc. DS70005349E-page 303
dsPIC33CK256MP508 FAMILY
REGISTER 13-6: ADCON3H: ADC CONTROL REGISTER 3 HIGH
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CLKSEL1(1)CLKSEL0(1)CLKDIV5(2)CLKDIV4(2)CLKDIV3(2)CLKDIV2(2)CLKDIV1(2)CLKDIV0(2)
bit 15 bit 8
R/W-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
SHREN — — — — —C1ENC0EN
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 CLKSEL<1:0>: ADC Module Clock Source Selection bits(1)
11 = FVCO/4
10 = AFVCODIV
01 = FOSC
00 = FP (Peripheral Clock)
bit 13-8 CLKDIV<5:0>: ADC Module Clock Source Divider bits(2)
The divider forms a TCORESRC clock used by all ADC cores (shared and dedicated) from the TSRC ADC
module clock source selected by the CLKSEL<1:0> bits. Then, each ADC core individually divides the
TCORESRC clock to get a core-specific TADCORE clock using the ADCS<6:0> bits in the ADCORExH
register or the SHRADCS<6:0> bits in the ADCON2L register.
111111 = 64 Source Clock Periods
...
000011 = 4 Source Clock Periods
000010 = 3 Source Clock Periods
000001 = 2 Source Clock Periods
000000 = 1 Source Clock Period
bit 7 SHREN: Shared ADC Core Enable bit
1 = Shared ADC core is enabled
0 = Shared ADC core is disabled
bit 6-2 Unimplemented: Read as ‘0’
bit 1 C1EN: Dedicated ADC Core 1 Enable bits
1 = Dedicated ADC Core 1 is enabled
0 = Dedicated ADC Core 1 is disabled
bit 0 C0EN: Dedicated ADC Core 0 Enable bits
1 = Dedicated ADC Core 0 is enabled
0 = Dedicated ADC Core 0 is disabled
Note 1: The ADC input clock frequency, selected by the CLKSEL<1:0> bits, must not exceed 560 MHz.
2: The ADC clock frequency, after the divider selected by the CLKDIV<5:0> bits, must not exceed 280 MHz.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 304 2017-2018 Microchip Technology Inc.
REGISTER 13-7: ADCON4L: ADC CONTROL REGISTER 4 LOW
U-0 U-0 U-0 U-0 U-0 U-0 r-0 r-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — — SAMC1EN SAMC0EN
bit 7 bit 0
Legend: r = Reserved bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9-8 Reserved: Must be written as ‘0’
bit 7-2 Unimplemented: Read as ‘0’
bit 1 SAMC1EN: Dedicated ADC Core 1 Conversion Delay Enable bit
1 = After trigger, the conversion will be delayed and the ADC core will continue sampling during the
time specified by the SAMC<9:0> bits in the ADCORE1L register
0 = After trigger, the sampling will be stopped immediately and the conversion will be started on the
next core clock cycle
bit 0 SAMC0EN: Dedicated ADC Core 0 Conversion Delay Enable bit
1 = After trigger, the conversion will be delayed and the ADC core will continue sampling during the
time specified by the SAMC<9:0> bits in the ADCORE0L register
0 = After trigger, the sampling will be stopped immediately and the conversion will be started on the
next core clock cycle
2017-2018 Microchip Technology Inc. DS70005349E-page 305
dsPIC33CK256MP508 FAMILY
REGISTER 13-8: ADCON4H: ADC CONTROL REGISTER 4 HIGH
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
———— C1CHS1 C1CHS0 C0CHS1 C0CHS0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-4 Unimplemented: Read as ‘0’
bit 3-2 C1CHS<1:0>: Dedicated ADC Core 1 Input Channel Selection bits
11 = Reserved
10 = Reserved
01 = ANA1
00 = AN1
bit 1-0 C0CHS<1:0>: Dedicated ADC Core 0 Input Channel Selection bits
11 = Reserved
10 = Reserved
01 = ANA0
00 = AN0
dsPIC33CK256MP508 FAMILY
DS70005349E-page 306 2017-2018 Microchip Technology Inc.
REGISTER 13-9: ADCON5L: ADC CONTROL REGISTER 5 LOW
HSC/R-0
U-0 U-0 U-0 U-0 U-0
HSC/R-0 HSC/R-0
SHRRDY — — — — — C1RDY C0RDY
bit 15 bit 8
R/W-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
SHRPWR — — — — —C1PWRC0PWR
bit 7 bit 0
Legend: U = Unimplemented bit, read as ‘0’
R = Readable bit W = Writable bit HSC = Hardware Settable/Clearable bit
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 SHRRDY: Shared ADC Core Ready Flag bit
1 = ADC core is powered and ready for operation
0 = ADC core is not ready for operation
bit 14-10 Unimplemented: Read as ‘0’
bit 9 C1RDY: Dedicated ADC Core 1 Ready Flag bit
1 = ADC Core 1 is powered and ready for operation
0 = ADC Core 1 is not ready for operation
bit 8 C0RDY: Dedicated ADC Core 0 Ready Flag bit
1 = ADC Core 0 is powered and ready for operation
0 = ADC Core 0 is not ready for operation
bit 7 SHRPWR: Shared ADC Core Power Enable bit
1 = ADC core is powered
0 = ADC core is off
bit 6-2 Unimplemented: Read as ‘0’
bit 1 C1PWR: Dedicated ADC Core 1 Power Enable bit
1 = ADC Core 1 is powered
0 = ADC Core 1 is off
bit 0 C0PWR: Dedicated ADC Core 0 Power Enable bit
1 = ADC Core 0 is powered
0 = ADC Core 0 is off
2017-2018 Microchip Technology Inc. DS70005349E-page 307
dsPIC33CK256MP508 FAMILY
REGISTER 13-10: ADCON5H: ADC CONTROL REGISTER 5 HIGH
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
— ——— WARMTIME3 WARMTIME2 WARMTIME1 WARMTIME0
bit 15 bit 8
R/W-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
SHRCIE — — — — — C1CIE C0CIE
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 Unimplemented: Read as ‘0’
bit 11-8 WARMTIME<3:0>: ADC Dedicated Core x Power-up Delay bits
These bits determine the power-up delay in the number of the Core Source Clock Periods (TCORESRC)
for all ADC cores.
1111 = 32768 Source Clock Periods
1110 = 16384 Source Clock Periods
1101 = 8192 Source Clock Periods
1100 = 4096 Source Clock Periods
1011 = 2048 Source Clock Periods
1010 = 1024 Source Clock Periods
1001 = 512 Source Clock Periods
1000 = 256 Source Clock Periods
0111 = 128 Source Clock Periods
0110 = 64 Source Clock Periods
0101 = 32 Source Clock Periods
0100 = 16 Source Clock Periods
00xx = 16 Source Clock Periods
bit 7 SHRCIE: Shared ADC Core Ready Common Interrupt Enable bit
1 = Common interrupt will be generated when ADC core is powered and ready for operation
0 = Common interrupt is disabled for an ADC core ready event
bit 6-2 Unimplemented: Read as ‘0’
bit 1 C1CIE: Dedicated ADC Core 1 Ready Common Interrupt Enable bit
1 = Common interrupt will be generated when ADC Core 1 is powered and ready for operation
0 = Common interrupt is disabled for an ADC Core 1 ready event
bit 0 C0CIE: Dedicated ADC Core 0 Ready Common Interrupt Enable bit
1 = Common interrupt will be generated when ADC Core 0 is powered and ready for operation
0 = Common interrupt is disabled for an ADC Core 0 ready event
dsPIC33CK256MP508 FAMILY
DS70005349E-page 308 2017-2018 Microchip Technology Inc.
REGISTER 13-11: ADCORExL: DEDICATED ADC CORE x CONTROL REGISTER LOW (x = 0 TO 1)
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — — SAMC<9:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SAMC<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9-0 SAMC<9:0>: Dedicated ADC Core x Conversion Delay Selection bits
These bits determine the time between the trigger event and the start of conversion in the number of
the Core Clock Periods (TADCORE). During this time, the ADC Core x still continues sampling. This
feature is enabled by the SAMCxEN bits in the ADCON4L register.
1111111111 = 1025 T
ADCORE
...
0000000001 = 3 T
ADCORE
0000000000 = 2 TADCORE
2017-2018 Microchip Technology Inc. DS70005349E-page 309
dsPIC33CK256MP508 FAMILY
REGISTER 13-12: ADCORExH: DEDICATED ADC CORE x CONTROL REGISTER HIGH (x = 0 TO 1)
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — EISEL2 EISEL1 EISEL0 RES1 RES2
bit 15 bit 8
U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— ADCS6 ADCS5 ADCS4 ADCS3 ADCS2 ADCS1 ADCS0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-10 EISEL<2:0>: ADC Core x Early Interrupt Time Selection bits
111 = Early interrupt is set and an interrupt is generated 8 T
ADCORE clocks prior to when the data is ready
110 = Early interrupt is set and an interrupt is generated 7 T
ADCORE clocks prior to when the data is ready
101 = Early interrupt is set and an interrupt is generated 6 T
ADCORE clocks prior to when the data is ready
100 = Early interrupt is set and an interrupt is generated 5 T
ADCORE clocks prior to when the data is ready
011 = Early interrupt is set and an interrupt is generated 4 T
ADCORE clocks prior to when the data is ready
010 = Early interrupt is set and an interrupt is generated 3 T
ADCORE clocks prior to when the data is ready
001 = Early interrupt is set and an interrupt is generated 2 T
ADCORE clocks prior to when the data is ready
000 = Early interrupt is set and an interrupt is generated 1 TADCORE clock prior to when the data is ready
bit 9-8 RES<1:0>: ADC Core x Resolution Selection bits
11 = 12-bit resolution
10 = 10-bit resolution
01 = 8-bit resolution(1)
00 = 6-bit resolution(1)
bit 7 Unimplemented: Read as ‘0’
bit 6-0 ADCS<6:0>: ADC Core x Input Clock Divider bits
These bits determine the number of Source Clock Periods (TCORESRC) for one Core Clock Period
(TADCORE).
1111111 = 254 Source Clock Periods
...
0000011 = 6 Source Clock Periods
0000010 = 4 Source Clock Periods
0000001 = 2 Source Clock Periods
0000000 = 2 Source Clock Periods
Note 1: For the 6-bit ADC core resolution (RES<1:0> = 00), the EISEL<2:0> bits settings, from ‘100’ to ‘111’, are
not valid and should not be used. For the 8-bit ADC core resolution (RES<1:0> = 01), the EISEL<2:0> bits
settings, ‘110’ and ‘111’, are not valid and should not be used.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 310 2017-2018 Microchip Technology Inc.
REGISTER 13-13: ADLVLTRGL: ADC LEVEL-SENSITIVE TRIGGER CONTROL REGISTER LOW(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
LVLEN<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
LVLEN<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 LVLEN<15:0>: Level Trigger for Corresponding Analog Input Enable bits
1 = Input trigger is level-sensitive
0 = Input trigger is edge-sensitive
Note 1: Bit availability is dependent on the number of supported ADC channels. Refer to Tabl e 1 and Ta bl e 2 for
ADC channel availability on package variants.
REGISTER 13-14: ADLVLTRGH: ADC LEVEL-SENSITIVE TRIGGER CONTROL REGISTER HIGH(1)
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — — LVLEN<25:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
LVLEN<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9-0 LVLEN<25:16>: Level Trigger for Corresponding Analog Input Enable bits
1 = Input trigger is level-sensitive
0 = Input trigger is edge-sensitive
Note 1: Bit availability is dependent on the number of supported ADC channels. Refer to Tabl e 1 and Ta bl e 2 for
ADC channel availability on package variants.
2017-2018 Microchip Technology Inc. DS70005349E-page 311
dsPIC33CK256MP508 FAMILY
REGISTER 13-15: ADEIEL: ADC EARLY INTERRUPT ENABLE REGISTER LOW(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
EIEN<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
EIEN<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 EIEN<15:0>: Early Interrupt Enable for Corresponding Analog Inputs bits
1 = Early interrupt is enabled for the channel
0 = Early interrupt is disabled for the channel
Note 1: Bit availability is dependent on the number of supported ADC channels. Refer to Tabl e 1 and Ta bl e 2 for
ADC channel availability on package variants.
REGISTER 13-16: ADEIEH: ADC EARLY INTERRUPT ENABLE REGISTER HIGH(1)
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — — EIEN<25:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
EIEN<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9-0 EIEN<25:16>: Early Interrupt Enable for Corresponding Analog Inputs bits
1 = Early interrupt is enabled for the channel
0 = Early interrupt is disabled for the channel
Note 1: Bit availability is dependent on the number of supported ADC channels. Refer to Tabl e 1 and Ta bl e 2 for
ADC channel availability on package variants.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 312 2017-2018 Microchip Technology Inc.
REGISTER 13-17: ADEISTATL: ADC EARLY INTERRUPT STATUS REGISTER LOW(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
EISTAT<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
EISTAT<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 EISTAT<15:0>: Early Interrupt Status for Corresponding Analog Inputs bits
1 = Early interrupt was generated
0 = Early interrupt was not generated since the last ADCBUFx read
Note 1: Bit availability is dependent on the number of supported ADC channels. Refer to Tabl e 1 and Ta bl e 2 for
ADC channel availability on package variants.
REGISTER 13-18: ADEISTATH: ADC EARLY INTERRUPT STATUS REGISTER HIGH(1)
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — — EISTAT<25:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
EISTAT<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9-0 EISTAT<25:16>: Early Interrupt Status for Corresponding Analog Inputs bits
1 = Early interrupt was generated
0 = Early interrupt was not generated since the last ADCBUFx read
Note 1: Bit availability is dependent on the number of supported ADC channels. Refer to Tabl e 1 and Ta bl e 2 for
ADC channel availability on package variants.
2017-2018 Microchip Technology Inc. DS70005349E-page 313
dsPIC33CK256MP508 FAMILY
REGISTER 13-19: ADMOD0L: ADC INPUT MODE CONTROL REGISTER 0 LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DIFF7 SIGN7 DIFF6 SIGN6 DIFF5 SIGN5 DIFF4 SIGN4
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DIFF3 SIGN3 DIFF2 SIGN2 DIFF1 SIGN1 DIFF0 SIGN0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 through
bit 1 (odd)
DIFF<1:0>: Differential-Mode for Corresponding Analog Inputs bits
1 = Channel is differential
0 = Channel is single-ended
bit 14 through
bit 0 (even)
SIGN<1:0>: Output Data Sign for Corresponding Analog Inputs bits
1 = Channel output data is signed
0 = Channel output data is unsigned
REGISTER 13-20: ADMOD0H: ADC INPUT MODE CONTROL REGISTER 0 HIGH(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DIFF15 SIGN15 DIFF14 SIGN14 DIFF13 SIGN13 DIFF12 SIGN12
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DIFF11 SIGN11 DIFF10 SIGN10 DIFF9 SIGN9 DIFF8 SIGN8
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 through
bit 1 (odd)
DIFF<15:8>: Differential-Mode for Corresponding Analog Inputs bits
1 = Channel is differential
0 = Channel is single-ended
bit 14 through
bit 0 (even)
SIGN<15:8>: Output Data Sign for Corresponding Analog Inputs bits
1 = Channel output data is signed
0 = Channel output data is unsigned
Note 1: Bit availability is dependent on the number of supported ADC channels. Refer to Tabl e 1 and Ta bl e 2 for
ADC channel availability on package variants.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 314 2017-2018 Microchip Technology Inc.
REGISTER 13-21: ADMOD1L: ADC INPUT MODE CONTROL REGISTER 1 LOW(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DIFF23 SIGN23 DIFF22 SIGN22 DIFF21 SIGN21 DIFF20 SIGN20
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DIFF19 SIGN19 DIFF18 SIGN18 DIFF17 SIGN17 DIFF16 SIGN16
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 through
bit 1 (odd)
DIFF<23:16>: Differential-Mode for Corresponding Analog Inputs bits
1 = Channel is differential
0 = Channel is single-ended
bit 14 through
bit 0 (even)
SIGN<23:16>: Output Data Sign for Corresponding Analog Inputs bits
1 = Channel output data is signed
0 = Channel output data is unsigned
Note 1: Bit availability is dependent on the number of supported ADC channels. Refer to Tabl e 1 and Ta bl e 2 for
ADC channel availability on package variants.
REGISTER 13-22: ADMOD1H: ADC INPUT MODE CONTROL REGISTER 1 HIGH(1)
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — — DIFF25 SIGN25 DIFF24 SIGN24
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 3 through
bit 1 (odd)
DIFF<25:24>: Differential-Mode for Corresponding Analog Inputs bits
1 = Channel is differential
0 = Channel is single-ended
bit 2 through
bit 0 (even)
SIGN<25:24>: Output Data Sign for Corresponding Analog Inputs bits
1 = Channel output data is signed
0 = Channel output data is unsigned
Note 1: Bit availability is dependent on the number of supported ADC channels. Refer to Tabl e 1 and Ta bl e 2 for
ADC channel availability on package variants.
2017-2018 Microchip Technology Inc. DS70005349E-page 315
dsPIC33CK256MP508 FAMILY
REGISTER 13-23: ADIEL: ADC INTERRUPT ENABLE REGISTER LOW(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
IE<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
IE<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 IE<15:0>: Common Interrupt Enable bits
1 = Common and individual interrupts are enabled for the corresponding channel
0 = Common and individual interrupts are disabled for the corresponding channel
Note 1: Bit availability is dependent on the number of supported ADC channels. Refer to Tabl e 1 and Ta bl e 2 for
ADC channel availability on package variants.
REGISTER 13-24: ADIEH: ADC INTERRUPT ENABLE REGISTER HIGH(1)
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — —IE<25:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
IE<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9-0 IE<25:16>: Common Interrupt Enable bits
1 = Common and individual interrupts are enabled for the corresponding channel
0 = Common and individual interrupts are disabled for the corresponding channel
Note 1: Bit availability is dependent on the number of supported ADC channels. Refer to Tabl e 1 and Ta bl e 2 for
ADC channel availability on package variants.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 316 2017-2018 Microchip Technology Inc.
REGISTER 13-25: ADSTATL: ADC DATA READY STATUS REGISTER LOW(1)
HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0
AN<15:8>RDY
bit 15 bit 8
HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0
AN<7:0>RDY
bit 7 bit 0
Legend: U = Unimplemented bit, read as ‘0’
R = Readable bit W = Writable bit HSC = Hardware Settable/Clearable bit
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 AN<15:0>RDY: Common Interrupt Enable for Corresponding Analog Inputs bits
1 = Channel conversion result is ready in the corresponding ADCBUFx register
0 = Channel conversion result is not ready
Note 1: Bit availability is dependent on the number of supported ADC channels. Refer to Tabl e 1 and Ta bl e 2 for
ADC channel availability on package variants.
REGISTER 13-26: ADSTATH: ADC DATA READY STATUS REGISTER HIGH(1)
U-0 U-0 U-0 U-0 U-0 U-0
HSC/R-0 HSC/R-0
— — — — — —
bit 15 bit 8
HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0
AN<23:16>RDY
bit 7 bit 0
Legend: U = Unimplemented bit, read as ‘0’
R = Readable bit W = Writable bit HSC = Hardware Settable/Clearable bit
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9-0 AN<25:16>RDY: Common Interrupt Enable for Corresponding Analog Inputs bits
1 = Channel conversion result is ready in the corresponding ADCBUFx register
0 = Channel conversion result is not ready
Note 1: Bit availability is dependent on the number of supported ADC channels. Refer to Tabl e 1 and Ta bl e 2 for
ADC channel availability on package variants.
2017-2018 Microchip Technology Inc. DS70005349E-page 317
dsPIC33CK256MP508 FAMILY
REGISTER 13-27: ADTRIGnL/ADTRIGnH: ADC CHANNEL TRIGGER n(x) SELECTION REGISTERS
LOW AND HIGH (x = 0 TO 25; n = 0 TO 6)(1)
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — TRGSRC(x+1)4 TRGSRC(x+1)3 TRGSRC(x+1)2 TRGSRC(x+1)1 TRGSRC(x+1)0
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — TRGSRCx4 TRGSRCx3 TRGSRCx2 TRGSRCx1 TRGSRCx0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 TRGSRC(x+1)<4:0>: Trigger Source Selection for Corresponding Analog Inputs bits
(TRGSRC1 to TRGSRC25 – Odd)
11111 = ADTRG31 (PPS input)
11110 = PTG
11101 = CLC2
11100 = CLC1
11011 = MCCP9
11010 = SCCP7
11001 = SCCP6
11000 = SCCP5
10111 = SCCP4
10110 = SCCP3
10101 = SCCP2
10100 = SCCP1
10011 = PWM8 Trigger 2
10010 = PWM8 Trigger 1
10001 = PWM7 Trigger 2
10000 = PWM7 Trigger 1
01111 = PWM6 Trigger 2
01110 = PWM6 Trigger 1
01101 = PWM5 Trigger 2
01100 = PWM5 Trigger 1
01011 = PWM4 Trigger 2
01010 = PWM4 Trigger 1
01001 = PWM3 Trigger 2
01000 = PWM3 Trigger 1
00111 = PWM2 Trigger 2
00110 = PWM2 Trigger 1
00101 = PWM1 Trigger 2
00100 = PWM1 Trigger 1
00011 = Reserved
00010 = Level software trigger
00001 = Common software trigger
00000 = No trigger is enabled
bit 7-5 Unimplemented: Read as ‘0’
Note 1: The number of implemented registers is dependent on the number of available ADC channels. Refer to
Table 1 and Ta b l e 2 for ADC channel availability of package variants.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 318 2017-2018 Microchip Technology Inc.
bit 4-0 TRGSRCx<4:0>: Common Interrupt Enable for Corresponding Analog Inputs bits
(TRGSRC0 to TRGSRC24 – Even)
11111 = ADTRG31 (PPS input)
11110 = PTG
11101 = CLC2
11100 = CLC1
11011 = MCCP9
11010 = SCCP7
11001 = SCCP6
11000 = SCCP5
10111 = SCCP4
10110 = SCCP3
10101 = SCCP2
10100 = SCCP1
10011 = PWM8 Trigger 2
10010 = PWM8 Trigger 1
10001 = PWM7 Trigger 2
10000 = PWM7 Trigger 1
01111 = PWM6 Trigger 2
01110 = PWM6 Trigger 1
01101 = PWM5 Trigger 2
01100 = PWM5 Trigger 1
01011 = PWM4 Trigger 2
01010 = PWM4 Trigger 1
01001 = PWM3 Trigger 2
01000 = PWM3 Trigger 1
00111 = PWM2 Trigger 2
00110 = PWM2 Trigger 1
00101 = PWM1 Trigger 2
00100 = PWM1 Trigger 1
00011 = Reserved
00010 = Level software trigger
00001 = Common software trigger
00000 = No trigger is enabled
REGISTER 13-27: ADTRIGnL/ADTRIGnH: ADC CHANNEL TRIGGER n(x) SELECTION REGISTERS
LOW AND HIGH (x = 0 TO 25; n = 0 TO 6)(1) (CONTINUED)
Note 1: The number of implemented registers is dependent on the number of available ADC channels. Refer to
Table 1 and Table 2 for ADC channel availability of package variants.
2017-2018 Microchip Technology Inc. DS70005349E-page 319
dsPIC33CK256MP508 FAMILY
REGISTER 13-28:
ADCMPxCON: ADC DIGITAL COMPARATOR x CONTROL REGISTER (x = 0, 1, 2, 3)
U-0 U-0 U-0
HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0
— — — CHNL4 CHNL3 CHNL2 CHNL1 CHNL0
bit 15 bit 8
R/W-0 R/W-0 HS/HC/R-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CMPEN IE STAT BTWN HIHI HILO LOHI LOLO
bit 7 bit 0
Legend: HC = Hardware Clearable bit U = Unimplemented bit, read as ‘0’
R = Readable bit W = Writable bit HSC = Hardware Settable/Clearable bit
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared HS = Hardware Settable bit
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 CHNL<4:0>: Input Channel Number bits
If the comparator has detected an event for a channel, this channel number is written to these bits.
11111 = Reserved
...
11010 = Reserved
11001 = Band gap, 1.2V (AN25)
11000 = Temperature sensor (AN24)
10111 = AN23
...
00011 = AN3
00010 = AN2
00001 = AN1
00000 = AN0
bit 7 CMPEN: Comparator Enable bit
1 = Comparator is enabled
0 = Comparator is disabled and the STAT status bit is cleared
bit 6 IE: Comparator Common ADC Interrupt Enable bit
1 = Common ADC interrupt will be generated if the comparator detects a comparison event
0 = Common ADC interrupt will not be generated for the comparator
bit 5 STAT: Comparator Event Status bit
This bit is cleared by hardware when the channel number is read from the CHNL<4:0> bits.
1 = A comparison event has been detected since the last read of the CHNL<4:0> bits
0 = A comparison event has not been detected since the last read of the CHNL<4:0> bits
bit 4 BTWN: Between Low/High Comparator Event bit
1 = Generates a comparator event when ADCMPxLO ≤ ADCBUFx < ADCMPxHI
0 = Does not generate a digital comparator event when ADCMPxLO ≤ ADCBUFx < ADCMPxHI
bit 3 HIHI: High/High Comparator Event bit
1 = Generates a digital comparator event when ADCBUFx ≥ ADCMPxHI
0 = Does not generate a digital comparator event when ADCBUFx ≥ ADCMPxHI
bit 2 HILO: High/Low Comparator Event bit
1 = Generates a digital comparator event when ADCBUFx < ADCMPxHI
0 = Does not generate a digital comparator event when ADCBUFx < ADCMPxHI
bit 1 LOHI: Low/High Comparator Event bit
1 = Generates a digital comparator event when ADCBUFx ≥ ADCMPxLO
0 = Does not generate a digital comparator event when ADCBUFx ≥ ADCMPxLO
bit 0 LOLO: Low/Low Comparator Event bit
1 = Generates a digital comparator event when ADCBUFx < ADCMPxLO
0 = Does not generate a digital comparator event when ADCBUFx < ADCMPxLO
dsPIC33CK256MP508 FAMILY
DS70005349E-page 320 2017-2018 Microchip Technology Inc.
REGISTER 13-29: ADCMPxENL: ADC DIGITAL COMPARATOR x CHANNEL ENABLE REGISTER
LOW (x = 0, 1, 2, 3)(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CMPEN<15:8>
bit 15 bit 8
R/W/0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CMPEN<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 CMPEN<15:0>: Comparator Enable for Corresponding Input Channels bits
1 = Conversion result for corresponding channel is used by the comparator
0 = Conversion result for corresponding channel is not used by the comparator
Note 1: Bit availability is dependent on the number of supported ADC channels. Refer to Tabl e 1 and Ta bl e 2 for
ADC channel availability on package variants.
REGISTER 13-30: ADCMPxENH: ADC DIGITAL COMPARATOR x CHANNEL ENABLE REGISTER
HIGH (x = 0, 1, 2, 3)(1)
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — — CMPEN<25:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CMPEN<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9-0 CMPEN<25:16>: Comparator Enable for Corresponding Input Channels bits
1 = Conversion result for corresponding channel is used by the comparator
0 = Conversion result for corresponding channel is not used by the comparator
Note 1: Bit availability is dependent on the number of supported ADC channels. Refer to Tabl e 1 and Ta bl e 2 for
ADC channel availability on package variants.
2017-2018 Microchip Technology Inc. DS70005349E-page 321
dsPIC33CK256MP508 FAMILY
REGISTER 13-31: ADFLxCON: ADC DIGITAL FILTER x CONTROL REGISTER
(x = 0, 1, 2, 3)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 HSC/R-0
FLEN MODE1 MODE0 OVRSAM2 OVRSAM1 OVRSAM0 IE RDY
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — FLCHSEL4 FLCHSEL3 FLCHSEL2 FLCHSEL1 FLCHSEL0
bit 7 bit 0
Legend: U = Unimplemented bit, read as ‘0’
R = Readable bit W = Writable bit HSC = Hardware Settable/Clearable bit
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 FLEN: Filter Enable bit
1 = Filter is enabled
0 = Filter is disabled and the RDY bit is cleared
bit 14-13 MODE<1:0>: Filter Mode bits
11 = Averaging mode
10 = Reserved
01 = Reserved
00 = Oversampling mode
bit 12-10 OVRSAM<2:0>: Filter Averaging/Oversampling Ratio bits
If MODE<1:0> = 00:
111 = 128x (16-bit result in the ADFLxDAT register is in 12.4 format)
110 = 32x (15-bit result in the ADFLxDAT register is in 12.3 format)
101 = 8x (14-bit result in the ADFLxDAT register is in 12.2 format)
100 = 2x (13-bit result in the ADFLxDAT register is in 12.1 format)
011 = 256x (16-bit result in the ADFLxDAT register is in 12.4 format)
010 = 64x (15-bit result in the ADFLxDAT register is in 12.3 format)
001 = 16x (14-bit result in the ADFLxDAT register is in 12.2 format)
000 = 4x (13-bit result in the ADFLxDAT register is in 12.1 format)
If MODE<1:0> = 11 (12-bit result in the ADFLxDAT register in all instances):
111 = 256x
110 = 128x
101 = 64x
100 = 32x
011 = 16x
110 = 8x
001 = 4x
000 = 2x
bit 9 IE: Filter Common ADC Interrupt Enable bit
1 = Common ADC interrupt will be generated when the filter result will be ready
0 = Common ADC interrupt will not be generated for the filter
bit 8 RDY: Oversampling Filter Data Ready Flag bit
This bit is cleared by hardware when the result is read from the ADFLxDAT register.
1 = Data in the ADFLxDAT register is ready
0 = The ADFLxDAT register has been read and new data in the ADFLxDAT register is not ready
bit 7-5 Unimplemented: Read as ‘0’
dsPIC33CK256MP508 FAMILY
DS70005349E-page 322 2017-2018 Microchip Technology Inc.
bit 4-0 FLCHSEL<4:0>: Oversampling Filter Input Channel Selection bits
11111 = Reserved
...
11010 = Reserved
11001 = Band gap, 1.2V (AN25)
11000 = Temperature sensor (AN24)
10111 = AN23
...
00011 = AN3
00010 = AN2
00001 = AN1
00000 = AN0
REGISTER 13-31: ADFLxCON: ADC DIGITAL FILTER x CONTROL REGISTER
(x = 0, 1, 2, 3) (CONTINUED)
2017-2018 Microchip Technology Inc. DS70005349E-page 323
dsPIC33CK256MP508 FAMILY
14.0 HIGH-SPEED ANALOG
COMPARATOR WITH SLOPE
COMPENSATION DAC
The high-speed analog comparator module provides a
method to monitor voltage, current and other critical
signals in a power conversion application that may be
too fast for the CPU and ADC to capture. There are a
total of 3 comparator modules. The analog comparator
module can be used to implement Peak Current mode
control, Critical Conduction mode (variable frequency)
and Hysteretic Control mode.
14.1 Overview
The high-speed analog comparator module is
comprised of a high-speed comparator, Pulse Density
Modulation (PDM) DAC and a slope compensation unit.
The slope compensation unit provides a user-defined
slope which can be used to alter the DAC output. This
feature is useful in applications, such as Peak Current
mode control, where slope compensation is required to
maintain the stability of the power supply. The user
simply specifies the direction and rate of change for the
slope compensation and the output of the DAC is
modified accordingly.
The DAC consists of a PDM unit, followed by a digitally
controlled multiphase RC filter. The PDM unit uses a
phase accumulator circuit to generate an output stream
of pulses. The density of the pulse stream is proportional
to the input data value, relative to the maximum value
supported by the bit width of the accumulator. The output
pulse density is representative of the desired output volt-
age. The pulse stream is filtered with an RC filter to yield
an analog voltage. The output of the DAC is connected to
the negative input of the comparator. The positive input of
the comparator can be selected using a MUX from either
of the input pins. The comparator provides a high-speed
operation with a typical delay of 15 ns.
The output of the comparator is processed by the pulse
stretcher and the digital filter blocks, which prevent
comparator response to unintended fast transients in
the inputs. Figure 14-1 shows a block diagram of the
high-speed analog comparator module. The DAC
module can be operated in one of three modes: Slope
Generation mode, Hysteretic mode and Triangle Wave
mode. Each of these modes can be used in a variety of
power supply applications.
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a
comprehensive reference source. To com-
plement the information in this data sheet,
refer to “High-Speed Analog Com-
parator Module” (www.microchip.com/
DS70005280) in the “dsPIC33/PIC24
Family Reference Manual”.
Note: The DACOUT1 pin can only be associ-
ated with a single DAC output at any given
time. If more than one DACOEN bit is set,
the DACOUT1 pin will be a combination of
the signals.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 324 2017-2018 Microchip Technology Inc.
FIGURE 14-1: HIGH-SPEED ANALOG COMPARATOR MODULE BLOCK DIAGRAM
CMPxD
CMPxC
CMPxB
CMPxA
INSEL<2:0>
+
–
Slope
Generator
PDM
DAC
CMPx
0
1
CMPPOL
PWM Trigger
Status
IRQ
SLPxDAT DACxDATH
nn
DACx 3DACOUT1
DACxDATL
n
n
Note: n = 16
Pulse
Stretcher
and Digital
Filter
Buffer
Amplifier
2017-2018 Microchip Technology Inc. DS70005349E-page 325
dsPIC33CK256MP508 FAMILY
14.2 Features Overview
• Three Rail-to-Rail Analog Comparators
• Up to Four Selectable Input Sources per
Comparator
• Programmable Comparator Hysteresis
• Programmable Output Polarity
• Interrupt Generation Capability
• Dedicated Pulse Density Modulation DAC for
each Analog Comparator:
- PDM unit followed by a digitally controlled
multimode multipole RC filter
• Multimode Multipole RC Output Filter:
- Transition mode: Provides the fastest
response
- Fast mode: For tracking DAC slopes
- Steady-State mode: Provides 12-bit resolution
• Slope Compensation along with each DAC:
- Slope Generation mode
- Hysteretic Control mode
- Triangle Wave mode
• Functional Support for the High-Speed PWM
module which Includes:
- PWM duty cycle control
- PWM period control
- PWM Fault detect
14.3 Control Registers
The DACCTRL1L and DACCTRL2H/L registers are
common configuration registers for DAC modules.
The DACxCON, DACxDAT, SLPxCON and SLPxDAT
registers specify the operation of individual modules.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 326 2017-2018 Microchip Technology Inc.
REGISTER 14-1: DACCTRL1L: DAC CONTROL 1 LOW REGISTER
R/W-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0
DACON — DACSIDL — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0
CLKSEL1(1,3)CLKSEL0(1,3)CLKDIV1(1,3)CLKDIV0(1,3)—FCLKDIV2
(2)FCLKDIV1(2)FCLKDIV0(2)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared
bit 15 DACON: Common DAC Module Enable bit
1 = Enables DAC modules
0 = Disables DAC modules and disables FSCM clocks to reduce power consumption; any pending
Slope mode and/or underflow conditions are cleared
bit 14 Unimplemented: Read as ‘0’
bit 13 DACSIDL: DAC Stop in Idle Mode bit
1 = Discontinues module operation when device enters Idle mode
0 = Continues module operation in Idle mode
bit 12-8 Unimplemented: Read as ‘0’
bit 7-6 CLKSEL<1:0>: DAC Clock Source Select bits(1,3)
11 = FPLLO
10 = AFPLLO
01 = FVCO/2
00 = AFVCO/2
bit 5-4 CLKDIV<1:0>: DAC Clock Divider bits(1,3)
11 = Divide-by-4
10 = Divide-by-3 (non-uniform duty cycle)
01 = Divide-by-2
00 = 1x
bit 3 Unimplemented: Read as ‘0’
bit 2-0 FCLKDIV<2:0>: Comparator Filter Clock Divider bits(2)
111 = Divide-by-8
110 = Divide-by-7
101 = Divide-by-6
100 = Divide-by-5
011 = Divide-by-4
010 = Divide-by-3
001 = Divide-by-2
000 = 1x
Note 1: These bits should only be changed when DACON = 0 to avoid unpredictable behavior.
2: The input clock to this divider is the selected clock input, CLKSEL<1:0>, and then divided by two.
3: Clock source and dividers should yield an effective DAC clock input of 500 MHz.
2017-2018 Microchip Technology Inc. DS70005349E-page 327
dsPIC33CK256MP508 FAMILY
REGISTER 14-2: DACCTRL2H: DAC CONTROL 2 HIGH REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — — SSTIME<9:8>(1)
bit 15 bit 8
R/W-1 R/W-0 R/W-0 R/W-0 R/W-1 R/W-0 R/W-1 R/W-0
SSTIME<7:0>(1)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared
bit 15-10 Unimplemented: Read as ‘0’
bit 9-0 SSTIME<9:0>: Time from Start of Transition Mode until Steady-State Filter is Enabled bits(1)
Note 1: The value for SSTIME<9:0> should be greater than the TMODTIME<9:0> value.
REGISTER 14-3: DACCTRL2L: DAC CONTROL 2 LOW REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — —TMODTIME<9:8>
(1)
bit 15 bit 8
R/W-0 R/W-1 R/W-0 R/W-1 R/W-0 R/W-1 R/W-0 R/W-1
TMODTIME<7:0>(1)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared
bit 15-10 Unimplemented: Read as ‘0’
bit 9-0 TMODTIME<9:0>: Transition Mode Duration bits(1)
Note 1: The value for TMODTIME<9:0> should be less than the SSTIME<9:0> value.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 328 2017-2018 Microchip Technology Inc.
REGISTER 14-4: DACxCONH: DACx CONTROL HIGH REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — — TMCB<9:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TMCB<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared
bit 15-10 Unimplemented: Read as ‘0’
bit 9-0 TMCB<9:0>: DACx Leading-Edge Blanking bits
These register bits specify the blanking period for the comparator, following changes to the DAC output
during Change-of-State (COS), for the input signal selected by the HCFSEL<3:0> bits in Register 14-9.
REGISTER 14-5: DACxCONL: DACx CONTROL LOW REGISTER
R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0
DACEN IRQM1(1,2)IRQM0(1,2)— — CBE DACOEN FLTREN
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CMPSTAT CMPPOL INSEL2 INSEL1 INSEL0 HYSPOL HYSSEL1 HYSSEL0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared
bit 15 DACEN: Individual DACx Module Enable bit
1 = Enables DACx module
0 = Disables DACx module to reduce power consumption; any pending Slope mode and/or underflow
conditions are cleared
bit 14-13 IRQM<1:0>: Interrupt Mode select bits(1,2)
11 = Generates an interrupt on either a rising or falling edge detect
10 = Generates an interrupt on a falling edge detect
01 = Generates an interrupt on a rising edge detect
00 = Interrupts are disabled
bit 12-11 Unimplemented: Read as ‘0’
Note 1: Changing these bits during operation may generate a spurious interrupt.
2: The edge selection is a post-polarity selection via the CMPPOL bit.
2017-2018 Microchip Technology Inc. DS70005349E-page 329
dsPIC33CK256MP508 FAMILY
bit 10 CBE: Comparator Blank Enable bit
1 = Enables the analog comparator output to be blanked (gated off) during the recovery transition
following the completion of a slope operation
0 = Disables the blanking signal to the analog comparator; therefore, the analog comparator output is
always active
bit 9 DACOEN: DACx Output Buffer Enable bit
1 = DACx analog voltage is connected to the DACOUT1 pin
0 = DACx analog voltage is not connected to the DACOUT1 pin
bit 8 FLTREN: Comparator Digital Filter Enable bit
1 = Digital filter is enabled
0 = Digital filter is disabled
bit 7 CMPSTAT: Comparator Status bits
The current state of the comparator output including the CMPPOL selection.
bit 6 CMPPOL: Comparator Output Polarity Control bit
1 = Output is inverted
0 = Output is non-inverted
bit 5-3 INSEL<2:0>: Comparator Input Source Select bits
111 = Reserved
110 = Reserved
101 = Reserved
100 = Reserved
011 = CMPxD input pin
010 = CMPxC input pin
001 = CMPxB input pin
000 = CMPxA input pin
bit 2 HYSPOL: Comparator Hysteresis Polarity Select bit
1 = Hysteresis is applied to the falling edge of the comparator output
0 = Hysteresis is applied to the rising edge of the comparator output
bit 1-0 HYSSEL<1:0>: Comparator Hysteresis Select bits
11 = 45 mv hysteresis
10 = 30 mv hysteresis
01 = 15 mv hysteresis
00 = No hysteresis is selected
REGISTER 14-5: DACxCONL: DACx CONTROL LOW REGISTER (CONTINUED)
Note 1: Changing these bits during operation may generate a spurious interrupt.
2: The edge selection is a post-polarity selection via the CMPPOL bit.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 330 2017-2018 Microchip Technology Inc.
REGISTER 14-6: DACxDATH: DACx DATA HIGH REGISTER
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — — DACDAT<11:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DACDAT<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared
bit 15-12 Unimplemented: Read as ‘0’
bit 11-0 DACDAT<11:0>: DACx Data bits
This register specifies the high DACx data value. Valid values are from 205 to 3890.
REGISTER 14-7: DACxDATL: DACx DATA LOW REGISTER
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — — DACLOW<11:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DACLOW<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared
bit 15-12 Unimplemented: Read as ‘0’
bit 11-0 DACLOW<11:0>: DACx Low Data bits
In Hysteretic mode, Slope Generator mode and Triangle mode, this register specifies the low data value
and/or limit for the DACx module. Valid values are from 205 to 3890.
2017-2018 Microchip Technology Inc. DS70005349E-page 331
dsPIC33CK256MP508 FAMILY
REGISTER 14-8: SLPxCONH: DACx SLOPE CONTROL HIGH REGISTER
R/W-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 U-0
SLOPEN — — — HME(1)TWME(2)PSE —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared
bit 15 SLOPEN: Slope Function Enable/On bit
1 = Enables slope function
0 = Disables slope function; slope accumulator is disabled to reduce power consumption
bit 14-12 Unimplemented: Read as ‘0’
bit 11 HME: Hysteretic Mode Enable bit(1)
1 = Enables Hysteretic mode for DACx
0 = Disables Hysteretic mode for DACx
bit 10 TWME: Triangle Wave Mode Enable bit(2)
1 = Enables Triangle Wave mode for DACx
0 = Disables Triangle Wave mode for DACx
bit 9 PSE: Positive Slope Mode Enable bit
1 = Slope mode is positive (increasing)
0 = Slope mode is negative (decreasing)
bit 8-0 Unimplemented: Read as ‘0’
Note 1: HME mode requires the user to disable the slope function (SLOPEN = 0).
2: TWME mode requires the user to enable the slope function (SLOPEN = 1).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 332 2017-2018 Microchip Technology Inc.
REGISTER 14-9: SLPxCONL: DACx SLOPE CONTROL LOW REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
HCFSEL3 HCFSEL2 HCFSEL1 HCFSEL0 SLPSTOPA3 SLPSTOPA2 SLPSTOPA1 SLPSTOPA0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SLPSTOPB3 SLPSTOPB2 SLPSTOPB1 SLPSTOPB0 SLPSTRT3 SLPSTRT2 SLPSTRT1 SLPSTRT0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set0 ‘0’ = Bit is cleared
bit 15-12 HCFSEL<3:0>: Hysteretic Comparator Function Input Select bits
The selected input signal controls the switching between the DACx high limit (DACxDATH) and the DACx
low limit (DACxDATL) as the data source for the PDM DAC. It modifies the polarity of the comparator, and
the rising and falling edges initiate the start of the LEB counter (TMCB<9:0> bits in Register 14-4).
Input
Selection Source
1111 1
1100 0
1011 0
1010 0
1001 0
1000 PWM8H
0111 PWM7H
0110 PWM6H
0101 PWM5H
0100 PWM4H
0011 PWM3H
0010 PWM2H
0001 PWM1H
0000 0
2017-2018 Microchip Technology Inc. DS70005349E-page 333
dsPIC33CK256MP508 FAMILY
bit 11-8 SLPSTOPA<3:0>: Slope Stop A Signal Select bits
The selected Slope Stop A signal is logically OR’d with the selected Slope Stop B signal to terminate the
slope function.
bit 7-4 SLPSTOPB<3:0>: Slope Stop B Signal Select bits
The selected Slope Stop B signal is logically OR’d with the selected Slope Stop A signal to terminate the
slope function.
bit 3-0 SLPSTRT<3:0>: Slope Start Signal Select bits
REGISTER 14-9: SLPxCONL: DACx SLOPE CONTROL LOW REGISTER (CONTINUED)
Slope Stop A
Signal Selection Master
1101-1111 1
1000 PWM8 Trigger 2
0111 PWM7 Trigger 2
0110 PWM6 Trigger 2
0101 PWM5 Trigger 2
0100 PWM4 Trigger 2
0011 PWM3 Trigger 2
0010 PWM2 Trigger 2
0001 PWM1 Trigger 2
0000 0
Slope Start B
Signal Selection Master
0100-1111 1
0011 CMP3 Out
0010 CMP2 Out
0001 CMP1 Out
0000 0
Slope Start
Signal Selection Master
1101-1111 1
1000 PWM8 Trigger 1
0111 PWM7 Trigger 1
0110 PWM6 Trigger 1
0101 PWM5 Trigger 1
0100 PWM4 Trigger 1
0011 PWM3 Trigger 1
0010 PWM2 Trigger 1
0001 PWM1 Trigger 1
0000 0
dsPIC33CK256MP508 FAMILY
DS70005349E-page 334 2017-2018 Microchip Technology Inc.
REGISTER 14-10: SLPxDAT: DACx SLOPE DATA REGISTER(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SLPDAT<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SLPDAT<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared
bit 15-0 SLPDAT<15:0>: Slope Ramp Rate Value bits
The SLPDATx value is in 12.4 format.
Note 1: Register data is left justified.
2017-2018 Microchip Technology Inc. DS70005349E-page 335
dsPIC33CK256MP508 FAMILY
15.0 QUADRATURE ENCODER
INTERFACE (QEI)
The Quadrature Encoder Interface (QEI) module provides
the interface to incremental encoders for obtaining
mechanical position data. The dsPIC33CK256MP508
family implements two instances of the QEI. Quadrature
Encoders, also known as incremental encoders or optical
encoders, detect position and speed of rotating motion
systems. Quadrature Encoders enable closed-loop
control of motor control applications, such as Switched
Reluctance (SR) and AC Induction Motors (ACIM).
A typical Quadrature Encoder includes a slotted wheel
attached to the shaft of the motor and an emitter/
detector module that senses the slots in the wheel.
Typically, three output channels, Phase A (QEAx),
Phase B (QEBx) and Index (INDXx), provide informa-
tion on the movement of the motor shaft, including
distance and direction.
The two channels, Phase A (QEAx) and Phase B
(QEBx), are typically 90 degrees out of phase with
respect to each other. The Phase A and Phase B
channels have a unique relationship. If Phase A leads
Phase B, the direction of the motor is deemed positive
or forward. If Phase A lags Phase B, the direction of
the motor is deemed negative or reverse. The Index
pulse occurs once per mechanical revolution and is
used as a reference to indicate an absolute position.
Figure 15-1 illustrates the Quadrature Encoder
Interface signals.
The Quadrature signals from the encoder can have
four unique states (‘01’, ‘00’, ‘10’ and ‘11’) that reflect
the relationship between QEAx and QEBx. Figure 15-1
illustrates these states for one count cycle. The order of
the states get reversed when the direction of travel
changes.
The Quadrature Decoder increments or decrements the
32-bit up/down Position x Counter (POSxCNTH/L) reg-
isters for each Change-of-State (COS). The counter
increments when QEAx leads QEBx and decrements
when QEBx leads QEAx.
FIGURE 15-1: QUADRATURE ENCODER INTERFACE SIGNALS
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a
comprehensive resource. For more infor-
mation, refer to “Quadrature Encoder
Interface (QEI)” (www.microchip.com/
DS70000601) in the “dsPIC33/PIC24
Family Reference Manual”.
+1+1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1POSxCNT
Up/Down
QEAx
QEBx
-1
dsPIC33CK256MP508 FAMILY
DS70005349E-page 336 2017-2018 Microchip Technology Inc.
Table 15-1 shows the truth table that describes how
the Quadrature signals are decoded.
TABLE 15-1: TRUTH TABLE FOR
QUADRATURE ENCODER
Figure 15-2 illustrates the simplified block diagram of
the QEI module. The QEI module consists of decoder
logic to interpret the Phase A (QEAx) and Phase B
(QEBx) signals, and an up/down counter to
accumulate the count. The counter pulses are gener-
ated when the Quadrature state changes. The count
direction information must be maintained in a register
until a direction change is detected. The module also
includes digital noise filters, which condition the input
signal.
The QEI module consists of the following major
features:
• Four Input Pins: Two Phase Signals, an Index
Pulse and a Home Pulse
• Programmable Digital Noise Filters on Inputs
• Quadrature Decoder providing Counter Pulses
and Count Direction
• Count Direction Status
• 4x Count Resolution
• Index (INDXx) Pulse to Reset the Position
Counter
• General Purpose 32-Bit Timer/Counter mode
• Interrupts generated by QEI or Counter Events
• 32-Bit Velocity Counter
• 32-Bit Position Counter
• 32-Bit Index Pulse Counter
• 32-Bit Interval Timer
• 32-Bit Position Initialization/Capture Register
• 32-Bit Compare Less Than and Greater Than
Registers
• External Up/Down Count mode
• External Gated Count mode
• External Gated Timer mode
• Interval Timer mode
Current
Quadrature
State
Previous
Quadrature
State Action
QEA QEB QEA QEB
1111No count or direction change
1110Count up
1101Count down
1100Invalid state change; ignore
1011Count down
1010No count or direction change
1001Invalid state change; ignore
1000Count up
0111Count up
0110Invalid state change; ignore
0101No count or direction change
0100Count down
0011Invalid state change; ignore
0010Count down
0001Count up
0000No count or direction change
2017-2018 Microchip Technology Inc. DS70005349E-page 337
dsPIC33CK256MP508 FAMILY
FIGURE 15-2: QUADRATURE ENCODER INTERFACE (QEI) MODULE BLOCK DIAGRAM
Quadrature
Decoder
Logic
CCMPx
QEBx
QEAx
INDXx
COUNT
DIR
PBCLK
COUNT
COUNT_EN
Greater Than or Equal
Compare Register
Index Counter
Digital
Filter
HOMEx FHOMEx
Data Bus
Comparator
Data Bus
COUNT_EN
CNT_DIR
CNT_DIR
FINDXx
FINDXx
PCHEQ
Interval Timer
Index Counter
Hold Register
Interval
Timer Register
Hold Register
COUNT_EN
PBCLK
PCHGE
EXTCNT
EXTCNT
DIR_GATE
Velocity
COUNT_ENCNT_DIR
Counter Register
PCLLE
PCHGE
DIVCLK
DIR
CNT_DIR
DIR_GATE
PCLLE
CNTPOL
DIR_GATE
GATEN
0
1
DIVCLK
Comparator
PCLLE
PCLEQ
PCHGE
QFDIV
CCM<1:0>
INTDIV
(VELxCNT)
(INTxTMR)
(INTxHLD)
Register (INDXxCNT)
(INDXxHLD)
(QEIxGEC)(1)
Position Counter
Hold Register
(POSxHLD)
Initialization and
Capture Register
(QEIxIC)(1)
QCAPEN
Note 1: These registers map to the same memory location.
OUTFNC<1:0>
FLTREN
Velocity Counter
Hold Register
(VELxHLD)
Position Counter
Register
(POSxCNT)
Less Than or Equal
Compare Register
(QEIxLEC)
0
dsPIC33CK256MP508 FAMILY
DS70005349E-page 338 2017-2018 Microchip Technology Inc.
15.1 QEI Control and Status Registers
REGISTER 15-1: QEIxCON: QEIx CONTROL REGISTER
R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEIEN — QEISIDL PIMOD2(1,5)PIMOD1(1,5)PIMOD0(1,5)IMV1(2)IMV0(2)
bit 15 bit 8
U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— INTDIV2(3)INTDIV1(3)INTDIV0(3)CNTPOL GATEN CCM1 CCM0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 QEIEN: Quadrature Encoder Interface Module Enable bit
1 = Module counters are enabled
0 = Module counters are disabled, but SFRs can be read or written
bit 14 Unimplemented: Read as ‘0’
bit 13 QEISIDL: QEI Stop in Idle Mode bit
1 = Discontinues module operation when device enters Idle mode
0 = Continues module operation in Idle mode
bit 12-10 PIMOD<2:0>: Position Counter Initialization Mode Select bits(1,5)
111 = Modulo Count mode for position counter and every Index event resets the position counter(4)
110 = Modulo Count mode for position counter
101 = Resets the position counter when the position counter equals the QEIxGEC register
100 = Second Index event after Home event initializes position counter with contents of QEIxIC register
011 = First Index event after Home event initializes position counter with contents of QEIxIC register
010 = Next Index input event initializes the position counter with contents of QEIxIC register
001 = Every Index input event resets the position counter
000 = Index input event does not affect the position counter
bit 9-8 IMV<1:0>: Index Match Value bits(2)
11 = Index match occurs when QEBx = 1 and QEAx = 1
10 = Index match occurs when QEBx = 1 and QEAx = 0
01 = Index match occurs when QEBx = 0 and QEAx = 1
00 = Index match occurs when QEBx = 0 and QEAx = 0
bit 7 Unimplemented: Read as ‘0’
Note 1: When CCMx = 10 or CCMx = 11, all of the QEI counters operate as timers and the PIMOD<2:0> bits are
ignored.
2: When CCMx = 00, and QEAx and QEBx values match the Index Match Value (IMV), the POSxCNTH and
POSxCNTL registers are reset.
3: The selected clock rate should be at least twice the expected maximum quadrature count rate.
4: Not all devices support this mode.
5: The QCAPEN and HCAPEN bits must be cleared during PIMODx Modes 2 through 7 to ensure proper
functionality. Not all devices support HCAPEN.
2017-2018 Microchip Technology Inc. DS70005349E-page 339
dsPIC33CK256MP508 FAMILY
bit 6-4 INTDIV<2:0>: Timer Input Clock Prescale Select bits(3)
(interval timer, main timer (position counter), velocity counter and Index counter internal clock divider select)
111 = 1:256 prescale value
110 = 1:64 prescale value
101 = 1:32 prescale value
100 = 1:16 prescale value
011 = 1:8 prescale value
010 = 1:4 prescale value
001 = 1:2 prescale value
000 = 1:1 prescale value
bit 3 CNTPOL: Position and Index Counter/Timer Direction Select bit
1 = Counter direction is negative unless modified by external up/down signal
0 = Counter direction is positive unless modified by external up/down signal
bit 2 GATEN: External Count Gate Enable bit
1 = External gate signal controls position counter operation
0 = External gate signal does not affect position counter operation
bit 1-0 CCM<1:0>: Counter Control Mode Selection bits
11 = Internal Timer mode
10 = External Clock Count with External Gate mode
01 = External Clock Count with External Up/Down mode
00 = Quadrature Encoder mode
REGISTER 15-1: QEIxCON: QEIx CONTROL REGISTER (CONTINUED)
Note 1: When CCMx = 10 or CCMx = 11, all of the QEI counters operate as timers and the PIMOD<2:0> bits are
ignored.
2: When CCMx = 00, and QEAx and QEBx values match the Index Match Value (IMV), the POSxCNTH and
POSxCNTL registers are reset.
3: The selected clock rate should be at least twice the expected maximum quadrature count rate.
4: Not all devices support this mode.
5: The QCAPEN and HCAPEN bits must be cleared during PIMODx Modes 2 through 7 to ensure proper
functionality. Not all devices support HCAPEN.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 340 2017-2018 Microchip Technology Inc.
REGISTER 15-2: QEIxIOC: QEIx I/O CONTROL REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QCAPEN FLTREN QFDIV2 QFDIV1 QFDIV0 OUTFNC1 OUTFNC0 SWPAB
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R-x R-x R-x R-x
HOMPOL IDXPOL QEBPOL QEAPOL HOME INDEX QEB QEA
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 QCAPEN: QEIx Position Counter Input Capture Enable bit
1 = HOMEx input event (positive edge) triggers a position capture event (HCAPEN must be cleared)
0 = HOMEx input event (positive edge) does not trigger a position capture event
bit 14 FLTREN: QEAx/QEBx/INDXx/HOMEx Digital Filter Enable bit
1 = Input pin digital filter is enabled
0 = Input pin digital filter is disabled (bypassed)
bit 13-11 QFDIV<2:0>: QEAx/QEBx/INDXx/HOMEx Digital Input Filter Clock Divide Select bits
111 = 1:256 clock divide
110 = 1:64 clock divide
101 = 1:32 clock divide
100 = 1:16 clock divide
011 = 1:8 clock divide
010 = 1:4 clock divide
001 = 1:2 clock divide
000 = 1:1 clock divide
bit 10-9 OUTFNC<1:0>: QEIx Module Output Function Mode Select bits
11 = The QEICMPx pin goes high when POSxCNT < QEIxLEC or POSxCNT > QEIxGEC
10 = The QEICMPx pin goes high when POSxCNT < QEIxLEC
01 = The QEICMPx pin goes high when POSxCNT > QEIxGEC
00 = Output is disabled
bit 8 SWPAB: Swap QEAx and QEBx Inputs bit
1 = QEAx and QEBx are swapped prior to Quadrature Decoder logic
0 = QEAx and QEBx are not swapped
bit 7 HOMPOL: HOMEx Input Polarity Select bit
1 = Input is inverted
0 = Input is not inverted
bit 6 IDXPOL: INDXx Input Polarity Select bit
1 = Input is inverted
0 = Input is not inverted
bit 5 QEBPOL: QEBx Input Polarity Select bit
1 = Input is inverted
0 = Input is not inverted
bit 4 QEAPOL: QEAx Input Polarity Select bit
1 = Input is inverted
0 = Input is not inverted
bit 3 HOME: Status of HOMEx Input Pin After Polarity Control bit (read-only)
1 = Pin is at logic ‘1’ if the HOMPOL bit is set to ‘0’; pin is at logic ‘0’ if the HOMPOL bit is set to ‘1’
0 = Pin is at logic ‘0’ if the HOMPOL bit is set to ‘0’; pin is at logic ‘1’ if the HOMPOL bit is set to ‘1’
2017-2018 Microchip Technology Inc. DS70005349E-page 341
dsPIC33CK256MP508 FAMILY
bit 2 INDEX: Status of INDXx Input Pin After Polarity Control bit (read-only)
1 = Pin is at logic ‘1’ if the IDXPOL bit is set to ‘0’; pin is at logic ‘0’ if the IDXPOL bit is set to ‘1’
0 = Pin is at logic ‘0’ if the IDXPOL bit is set to ‘0’; pin is at logic ‘1’ if the IDXPOL bit is set to ‘1’
bit 1 QEB: Status of QEBx Input Pin After Polarity Control and SWPAB Pin Swapping bit (read-only)
1 = Physical pin, QEBx, is at logic ‘1’ if the QEBPOL bit is set to ‘0’ and the SWPAB bit is set to ‘0’;
physical pin, QEBx, is at logic ‘0’ if the QEBPOL bit is set to ‘1’ and the SWPAB bit is set to ‘0’;
physical pin, QEAx, is at logic ‘1’ if the QEBPOL bit is set to ‘0’ and the SWPAB bit is set to ‘1’;
physical pin, QEAx, is at logic ‘0’ if the QEBPOL bit is set to ‘1’ and the SWPAB bit is set to ‘1’
0 = Physical pin, QEBx, is at logic ‘0’ if the QEBPOL bit is set to ‘0’ and the SWPAB bit is set to ‘0’;
physical pin, QEBx, is at logic ‘1’ if the QEBPOL bit is set to ‘1’ and the SWPAB bit is set to ‘0’;
physical pin, QEAx, is at logic ‘0’ if the QEBPOL bit is set to ‘0’ and the SWPAB bit is set to ‘1’;
physical pin, QEAx, is at logic ‘1’ if the QEBPOL bit is set to ‘1’ and the SWPAB bit is set to ‘1’
bit 0 QEA: Status of QEAx Input Pin After Polarity Control and SWPAB Pin Swapping bit (read-only)
1 = Physical pin, QEAx, is at logic ‘1’ if the QEAPOL bit is set to ‘0’ and the SWPAB bit is set to ‘0’;
physical pin, QEAx, is at logic ‘0’ if the QEAPOL bit is set to ‘1’ and the SWPAB bit is set to ‘0’;
physical pin, QEBx, is at logic ‘1’ if the QEAPOL bit is set to ‘0’ and the SWPAB bit is set to ‘1’;
physical pin, QEBx, is at logic ‘0’ if the QEAPOL bit is set to ‘1’ and the SWPAB bit is set to ‘1’
0 = Physical pin, QEAx, is at logic ‘0’ if the QEAPOL bit is set to ‘0’ and the SWPAB bit is set to ‘0’;
physical pin, QEAx, is at logic ‘1’ if the QEAPOL bit is set to ‘1’ and the SWPAB bit is set to ‘0’;
physical pin, QEBx, is at logic ‘0’ if the QEAPOL bit is set to ‘0’ and the SWPAB bit is set to ‘1’;
physical pin, QEBx, is at logic ‘1’ if the QEAPOL bit is set to ‘1’ and the SWPAB bit is set to ‘1’
REGISTER 15-2: QEIxIOC: QEIx I/O CONTROL REGISTER (CONTINUED)
REGISTER 15-3: QEIxIOCH: QEIx I/O CONTROL HIGH REGISTER(1)
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0
— — — — — — — HCAPEN
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-1 Unimplemented: Read as ‘0’
bit 0 HCAPEN: Position Counter Input Capture by Home Event Enable bit
1 = HOMEx input event (positive edge) triggers a position capture event
0 = HOMEx input event (positive edge) does not trigger a position capture event
Note 1: This register is not present on all devices.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 342 2017-2018 Microchip Technology Inc.
REGISTER 15-4: QEIxSTAT: QEIx STATUS REGISTER
U-0 U-0 HS/R/C-0 R/W-0 HS/R/C-0 R/W-0 HS/R/C-0 R/W-0
—— PCHEQIRQ PCHEQIEN PCLEQIRQ PCLEQIEN POSOVIRQ POSOVIEN
bit 15 bit 8
HS/R/C-0 R/W-0 HS/R/C-0 R/W-0 HS/R/C-0 R/W-0 HS/R/C-0 R/W-0
PCIIRQ(1)PCIIEN VELOVIRQ VELOVIEN HOMIRQ HOMIEN IDXIRQ IDXIEN
bit 7 bit 0
Legend: C = Clearable bit HS = Hardware Settable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13 PCHEQIRQ: Position Counter Greater Than Compare Status bit
1 = POSxCNT QEIxGEC
0 = POSxCNT < QEIxGEC
bit 12 PCHEQIEN: Position Counter Greater Than Compare Interrupt Enable bit
1 = Interrupt is enabled
0 = Interrupt is disabled
bit 11 PCLEQIRQ: Position Counter Less Than Compare Status bit
1 = POSxCNT QEIxLEC
0 = POSxCNT > QEIxLEC
bit 10 PCLEQIEN: Position Counter Less Than Compare Interrupt Enable bit
1 = Interrupt is enabled
0 = Interrupt is disabled
bit 9 POSOVIRQ: Position Counter Overflow Status bit
1 = Overflow has occurred
0 = No overflow has occurred
bit 8 POSOVIEN: Position Counter Overflow Interrupt Enable bit
1 = Interrupt is enabled
0 = Interrupt is disabled
bit 7 PCIIRQ: Position Counter (Homing) Initialization Process Complete Status bit(1)
1 = POSxCNT was reinitialized
0 = POSxCNT was not reinitialized
bit 6 PCIIEN: Position Counter (Homing) Initialization Process Complete Interrupt Enable bit
1 = Interrupt is enabled
0 = Interrupt is disabled
bit 5 VELOVIRQ: Velocity Counter Overflow Status bit
1 = Overflow has occurred
0 = No overflow has occurred
bit 4 VELOVIEN: Velocity Counter Overflow Interrupt Enable bit
1 = Interrupt is enabled
0 = Interrupt is disabled
bit 3 HOMIRQ: Status Flag for Home Event Status bit
1 = Home event has occurred
0 = No Home event has occurred
Note 1: This status bit is only applicable to PIMOD<2:0> modes, ‘011’ and ‘100’.
2017-2018 Microchip Technology Inc. DS70005349E-page 343
dsPIC33CK256MP508 FAMILY
bit 2 HOMIEN: Home Input Event Interrupt Enable bit
1 = Interrupt is enabled
0 = Interrupt is disabled
bit 1 IDXIRQ: Status Flag for Index Event Status bit
1 = Index event has occurred
0 = No Index event has occurred
bit 0 IDXIEN: Index Input Event Interrupt Enable bit
1 = Interrupt is enabled
0 = Interrupt is disabled
REGISTER 15-4: QEIxSTAT: QEIx STATUS REGISTER (CONTINUED)
Note 1: This status bit is only applicable to PIMOD<2:0> modes, ‘011’ and ‘100’.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 344 2017-2018 Microchip Technology Inc.
REGISTER 15-5: POSxCNTL: POSITION x COUNTER REGISTER LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
POSCNT<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
POSCNT<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 POSCNT<15:0>: Low Word Used to Form 32-Bit Position Counter Register (POSxCNT) bits
REGISTER 15-6: POSxCNTH: POSITION x COUNTER REGISTER HIGH
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
POSCNT<31:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
POSCNT<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 POSCNT<31:16>: High Word Used to Form 32-Bit Position Counter Register (POSxCNT) bits
2017-2018 Microchip Technology Inc. DS70005349E-page 345
dsPIC33CK256MP508 FAMILY
REGISTER 15-7: POSxHLD: POSITION x COUNTER HOLD REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
POSHLD<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
POSHLD<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 POSHLD<15:0>: Hold Register for Reading/Writing Position x Counter High Word Register (POSxCNTH) bits
dsPIC33CK256MP508 FAMILY
DS70005349E-page 346 2017-2018 Microchip Technology Inc.
REGISTER 15-8: VELxCNT: VELOCITY x COUNTER REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
VELCNT<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
VELCNT<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 VELCNT<15:0>: Velocity Counter bits
REGISTER 15-9: VELxCNTH: VELOCITY x COUNTER REGISTER HIGH(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
VELCNT<31:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
VELCNT<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 VELCNT<31:16>: Velocity Counter bits
Note 1: This register is not present on all devices.
2017-2018 Microchip Technology Inc. DS70005349E-page 347
dsPIC33CK256MP508 FAMILY
REGISTER 15-10: VELxHLD: VELOCITY x COUNTER HOLD REGISTER(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
VELHLD<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
VELHLD<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 VELHLD<15:0>: Hold for Reading/Writing Velocity Counter Register (VELxCNT) bits
Note 1: This register is not present on all devices.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 348 2017-2018 Microchip Technology Inc.
REGISTER 15-11: INTxTMRL: INTERVAL x TIMER REGISTER LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INTTMR<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INTTMR<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 INTTMR<15:0>: Low Word Used to Form 32-Bit Interval Timer Register (INTxTMR) bits
REGISTER 15-12: INTxTMRH: INTERVAL x TIMER REGISTER HIGH
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INTTMR<31:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INTTMR<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 INTTMR<31:16>: High Word Used to Form 32-Bit Interval Timer Register (INTxTMR) bits
2017-2018 Microchip Technology Inc. DS70005349E-page 349
dsPIC33CK256MP508 FAMILY
REGISTER 15-13: INTXxHLDL: INTERVAL x TIMER HOLD REGISTER LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INTHLD<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INTHLD<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 INTHLD<15:0>: Low Word Used to Form 32-Bit Interval Timer Hold Register (INTxHLD) bits
REGISTER 15-14: INTXxHLDH: INTERVAL x TIMER HOLD REGISTER HIGH
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INTHLD<31:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INTHLD<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 INTHLD<31:16>: High Word Used to Form 32-Bit Interval Timer Hold Register (INTxHLD) bits
dsPIC33CK256MP508 FAMILY
DS70005349E-page 350 2017-2018 Microchip Technology Inc.
REGISTER 15-15: INDXxCNTL: INDEX x COUNTER REGISTER LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INDXCNT<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INDXCNT<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 INDXCNT<15:0>: Low Word Used to Form 32-Bit Index x Counter Register (INDXxCNT) bits
REGISTER 15-16: INDXxCNTH: INDEX x COUNTER REGISTER HIGH
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INDXCNT<31:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INDXCNT<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 INDXCNT<31:16>: High Word Used to Form 32-Bit Index x Counter Register (INDXxCNT) bits
2017-2018 Microchip Technology Inc. DS70005349E-page 351
dsPIC33CK256MP508 FAMILY
REGISTER 15-17: INDXxHLD: INDEX x COUNTER HOLD REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INDXHLD<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INDXHLD<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 INDXHLD<15:0>: Hold Register for Reading/Writing Index x Counter High Word Register (INDXxCNTH) bits
dsPIC33CK256MP508 FAMILY
DS70005349E-page 352 2017-2018 Microchip Technology Inc.
REGISTER 15-18: QEIxICL: QEIx INITIALIZATION/CAPTURE REGISTER LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEIIC<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEIIC<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 QEIIC<15:0>: Low Word Used to Form 32-Bit Initialization/Capture Register (QEIxIC) bits
REGISTER 15-19:
QEIxICH: QEIx
INITIALIZATION/CAPTURE
REGISTER HIGH
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEIIC<31:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEIIC<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 QEIIC<31:16>: High Word Used to Form 32-Bit Initialization/Capture Register (QEIxIC) bits
2017-2018 Microchip Technology Inc. DS70005349E-page 353
dsPIC33CK256MP508 FAMILY
REGISTER 15-20: QEIxLECL: QEIx LESS THAN OR EQUAL COMPARE REGISTER LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEILEC<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEILEC<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 QEILEC<15:0>: Low Word Used to Form 32-Bit Less Than or Equal Compare Register (QEIxLEC) bits
REGISTER 15-21: QEIxLECH: QEIx LESS THAN OR EQUAL COMPARE REGISTER HIGH
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEILEC<31:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEILEC<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 QEILEC<31:16>: High Word Used to Form 32-Bit Less Than or Equal Compare Register (QEIxLEC)
bits
dsPIC33CK256MP508 FAMILY
DS70005349E-page 354 2017-2018 Microchip Technology Inc.
REGISTER 15-22: QEIxGECL: QEIx GREATER THAN OR EQUAL COMPARE REGISTER LOW
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEIGEC<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEIGEC<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 QEIGEC<15:0>: Low Word Used to Form 32-Bit Greater Than or Equal Compare Register (QEIxGEC) bits
REGISTER 15-23: QEIxGECH: QEIx GREATER THAN OR EQUAL COMPARE REGISTER HIGH
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEIGEC<31:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
QEIGEC<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 QEIGEC<31:16>: High Word Used to Form 32-Bit Greater Than or Equal Compare Register (QEIxGEC) bits
2017-2018 Microchip Technology Inc. DS70005349E-page 355
dsPIC33CK256MP508 FAMILY
16.0 UNIVERSAL ASYNCHRONOUS
RECEIVER TRANSMITTER
(UART)
The Universal Asynchronous Receiver Transmitter
(UART) is a flexible serial communication peripheral
used to interface dsPIC® microcontrollers with other
equipment, including computers and peripherals. The
UART is a full-duplex, asynchronous communication
channel that can be used to implement protocols, such
as RS-232 and RS-485. The UART also supports the
following hardware extensions:
• LIN/J2602
•IrDA
®
• Direct Matrix Architecture (DMX)
• Smart Card
The primary features of the UART are:
• Full or Half-Duplex Operation
• Up to 8-Deep TX and RX First In, First Out (FIFO)
Buffers
• 8-Bit or 9-Bit Data Width
• Configurable Stop Bit Length
• Flow Control
• Auto-Baud Calibration
• Parity, Framing and Buffer Overrun Error
Detection
• Address Detect
• Break Transmission
• Transmit and Receive Polarity Control
• Manchester Encoder/Decoder
• Operation in Sleep mode
• Wake from Sleep on Sync Break Received
Interrupt
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a compre-
hensive reference source. To complement
the information in this data sheet, refer to
“Multiprotocol Universal Asynchronous
Receiver Transmitter (UART) Module”
(www.microchip.com/DS70005288) in the
“dsPIC33/PIC24 Family Reference
Manual”.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 356 2017-2018 Microchip Technology Inc.
16.1 Architectural Overview
The UART transfers bytes of data, to and from device
pins, using First-In First-Out (FIFO) buffers up to eight
bytes deep. The status of the buffers and data is made
available to user software through Special Function
Registers (SFRs). The UART implements multiple
interrupt channels for handling transmit, receive and
error events. A simplified block diagram of the UART is
shown in Figure 16-1.
FIGURE 16-1: SIMPLIFIED UARTx BLOCK DIAGRAM
Clock Inputs
Data Bus
Interrupts
Baud Rate
Generator
TX Buffer, UxTXREG
RX Buffer, UxRXREG
SFRs
Interrupt
Generation
Error and
Event
Detection
Hardware
Flow Control
TX
RX
UxDSR
UxRTS
UxCTS
UxDTR
2017-2018 Microchip Technology Inc. DS70005349E-page 357
dsPIC33CK256MP508 FAMILY
16.2 Character Frame
A typical UART character frame is shown in Figure 16-2.
The Idle state is high with a ‘Start’ condition indicated by
a falling edge. The Start bit is followed by the number of
data, parity/address detect and Stop bits defined by the
MOD<3:0> (UxMODE<3:0>) bits selected.
FIGURE 16-2: UART CHARACTER FRAME
16.3 Data Buffers
Both transmit and receive functions use buffers to store
data shifted to/from the pins. These buffers are FIFOs
and are accessed by reading the SFRs, UxTXREG and
UxRXREG, respectively. Each data buffer has multiple
flags associated with its operation to allow software to
read the status. Interrupts can also be configured
based on the space available in the buffers. The
transmit and receive buffers can be cleared and their
pointers reset using the associated TX/RX Buffer
Empty Status bits, UTXBE (UxSTAH<5>) and URXBE
(UxSTAH<1>).
16.4 Protocol Extensions
The UART provides hardware support for LIN/J2602,
IrDA®, DMX and smart card protocol extensions to
reduce software overhead. A protocol extension is
enabled by writing a value to the MOD<3:0>
(UxMODE<3:0>) selection bits and further configured
using the UARTx Timing Parameter registers, UxP1
(Register 16-9), UxP2 (Register 16-10), UxP3
(Register 16-11) and UxP3H (Register 16-12). Details
regarding operation and usage are discussed in their
respective chapters. Not all protocols are available on
all devices. Please refer to the specific device data
sheet for availability.
Idle
Start
Bit D0 D1 D2 D3 D5D4 D6 D7
Parity/
Address
Detect
Stop
Bit(s)
Idle
dsPIC33CK256MP508 FAMILY
DS70005349E-page 358 2017-2018 Microchip Technology Inc.
16.5 UART Control Registers
REGISTER 16-1: UxMODE: UARTx CONFIGURATION REGISTER
R/W-0 U-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 HC/R/W-0(1)
UARTEN — USIDL WAKE RXBIMD — BRKOVR UTXBRK
bit 15 bit 8
R/W-0 HC/R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
BRGH ABAUD UTXEN URXEN MOD3 MOD2 MOD1 MOD0
bit 7 bit 0
Legend: HC = Hardware Clearable bit HS = Hardware Settable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 UARTEN: UART Enable bit
1 = UART is ready to transmit and receive
0 = UART state machine, FIFO Buffer Pointers and counters are reset; registers are readable and writable
bit 14 Unimplemented: Read as ‘0’
bit 13 USIDL: UART Stop in Idle Mode bit
1 = Discontinues module operation when device enters Idle mode
0 = Continues module operation in Idle mode
bit 12 WAKE: Wake-up Enable bit
1 = Module will continue to sample the RX pin – interrupt generated on falling edge, bit cleared in hard-
ware on following rising edge; if ABAUD is set, Auto-Baud Detection (ABD) will begin immediately
0 = RX pin is not monitored nor rising edge detected
bit 11 RXBIMD: Receive Break Interrupt Mode bit
1 = RXBKIF flag when a minimum of 23 (DMX)/11 (asynchronous or LIN/J2602) low bit periods are
detected
0 = RXBKIF flag when the Break makes a low-to-high transition after being low for at least 23/11 bit
periods
bit 10 Unimplemented: Read as ‘0’
bit 9 BRKOVR: Send Break Software Override bit
Overrides the TX Data Line:
1 = Makes the TX line active (Output 0 when UTXINV = 0, Output 1 when UTXINV = 1)
0 = TX line is driven by the shifter
bit 8 UTXBRK: UART Transmit Break bit(1)
1 = Sends Sync Break on next transmission; cleared by hardware upon completion
0 = Sync Break transmission is disabled or has completed
bit 7 BRGH: High Baud Rate Select bit
1 = High Speed: Baud rate is baudclk/4
0 = Low Speed: Baud rate is baudclk/16
bit 6 ABAUD: Auto-Baud Detect Enable bit (read-only when MOD<3:0> = 1xxx)
1 = Enables baud rate measurement on the next character – requires reception of a Sync field (55h);
cleared in hardware upon completion
0 = Baud rate measurement is disabled or has completed
Note 1: R/HS/HC in DMX and LIN mode.
2017-2018 Microchip Technology Inc. DS70005349E-page 359
dsPIC33CK256MP508 FAMILY
bit 5 UTXEN: UART Transmit Enable bit
1 = Transmit enabled – except during Auto-Baud Detection
0 = Transmit disabled – all transmit counters, pointers and state machines are reset; TX buffer is not
flushed, status bits are not reset
bit 4 URXEN: UART Receive Enable bit
1 = Receive enabled – except during Auto-Baud Detection
0 = Receive disabled – all receive counters, pointers and state machines are reset; RX buffer is not
flushed, status bits are not reset
bit 3-0 MOD<3:0>: UART Mode bits
Other
= Reserved
1111 = Smart card
1110 = IrDA®
1101 = Reserved
1100 = LIN Master/Slave
1011 = LIN Slave only
1010 = DMX
1001 = Reserved
1000 = Reserved
0111 = Reserved
0110 = Reserved
0101 = Reserved
0100 = Asynchronous 9-bit UART with address detect, ninth bit = 1 signals address
0011 = Asynchronous 8-bit UART without address detect, ninth bit is used as an even parity bit
0010 = Asynchronous 8-bit UART without address detect, ninth bit is used as an odd parity bit
0001 = Asynchronous 7-bit UART
0000 = Asynchronous 8-bit UART
REGISTER 16-1: UxMODE: UARTx CONFIGURATION REGISTER (CONTINUED)
Note 1: R/HS/HC in DMX and LIN mode.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 360 2017-2018 Microchip Technology Inc.
REGISTER 16-2: UxMODEH: UARTx CONFIGURATION REGISTER HIGH
R/W-0 R-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
SLPEN ACTIVE — — BCLKMOD BCLKSEL1 BCLKSEL0 HALFDPLX
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
RUNOVF URXINV STSEL1 STSEL0 C0EN UTXINV FLO1 FLO0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 SLPEN: Run During Sleep Enable bit
1 = UART BRG clock runs during Sleep
0 = UART BRG clock is turned off during Sleep
bit 14 ACTIVE: UART Running Status bit
1 = UART clock request is active (user can not update the UxMODE/UxMODEH registers)
0 = UART clock request is not active (user can update the UxMODE/UxMODEH registers)
bit 13-12 Unimplemented: Read as ‘0’
bit 11 BCLKMOD: Baud Clock Generation Mode Select bit
1 = Uses fractional Baud Rate Generation
0 = Uses legacy divide-by-x counter for baud clock generation (x = 4 or 16 depending on the BRGH bit)
bit 10-9 BCLKSEL<1:0>: Baud Clock Source Selection bits
11 = AFVCO/3
10 = FOSC
01 = Reserved
00 = FOSC/2 (FP)
bit 8 HALFDPLX: UART Half-Duplex Selection Mode bit
1 = Half-Duplex mode: UxTX is driven as an output when transmitting and tri-stated when TX is Idle
0 = Full-Duplex mode: UxTX is driven as an output at all times when both UARTEN and UTXEN are set
bit 7 RUNOVF: Run During Overflow Condition Mode bit
1 = When an Overflow Error (OERR) condition is detected, the RX shifter continues to run so as to
remain synchronized with incoming RX data; data is not transferred to UxRXREG when it is full
(i.e., no UxRXREG data is overwritten)
0 = When an Overflow Error (OERR) condition is detected, the RX shifter stops accepting new data
(Legacy mode)
bit 6 URXINV: UART Receive Polarity bit
1 = Inverts RX polarity; Idle state is low
0 = Input is not inverted; Idle state is high
bit 5-4 STSEL<1:0>: Number of Stop Bits Selection bits
11 = 2 Stop bits sent, 1 checked at receive
10 = 2 Stop bits sent, 2 checked at receive
01 = 1.5 Stop bits sent, 1.5 checked at receive
00 = 1 Stop bit sent, 1 checked at receive
bit 3 C0EN: Enable Legacy Checksum (C0) Transmit and Receive bit
1 = Checksum Mode 1 (enhanced LIN checksum in LIN mode; add all TX/RX words in all other modes)
0 = Checksum Mode 0 (legacy LIN checksum in LIN mode; not used in all other modes)
2017-2018 Microchip Technology Inc. DS70005349E-page 361
dsPIC33CK256MP508 FAMILY
bit 2 UTXINV: UART Transmit Polarity bit
1 = Inverts TX polarity; TX is low in Idle state
0 = Output data is not inverted; TX output is high in Idle state
bit 1-0 FLO<1:0>: Flow Control Enable bits (only valid when MOD<3:0> = 0xxx)
11 = Reserved
10 = RTS-DSR (for TX side)/CTS-DTR (for RX side) hardware flow control
01 = XON/XOFF software flow control
00 = Flow control off
REGISTER 16-2: UxMODEH: UARTx CONFIGURATION REGISTER HIGH (CONTINUED)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 362 2017-2018 Microchip Technology Inc.
REGISTER 16-3: UxSTA: UARTx STATUS REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TXMTIE PERIE ABDOVE CERIE FERIE RXBKIE OERIE TXCIE
bit 15 bit 8
R-1 R-0 HS/R/W-0 HS/R/W-0 R-0 HS/R/W-0 HS/R/W-0 HS/R/W-0
TRMT PERR ABDOVF CERIF FERR RXBKIF OERR TXCIF
bit 7 bit 0
Legend: HS = Hardware Settable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 TXMTIE: Transmit Shifter Empty Interrupt Enable bit
1 = Interrupt is enabled
0 = Interrupt is disabled
bit 14 PERIE: Parity Error Interrupt Enable bit
1 = Interrupt is enabled
0 = Interrupt is disabled
bit 13 ABDOVE: Auto-Baud Rate Acquisition Interrupt Enable bit
1 = Interrupt is enabled
0 = Interrupt is disabled
bit 12 CERIE: Checksum Error Interrupt Enable bit
1 = Interrupt is enabled
0 = Interrupt is disabled
bit 11 FERIE: Framing Error Interrupt Enable bit
1 = Interrupt is enabled
0 = Interrupt is disabled
bit 10 RXBKIE: Receive Break Interrupt Enable bit
1 = Interrupt is enabled
0 = Interrupt is disabled
bit 9 OERIE: Receive Buffer Overflow Interrupt Enable bit
1 = Interrupt is enabled
0 = Interrupt is disabled
bit 8 TXCIE: Transmit Collision Interrupt Enable bit
1 = Interrupt is enabled
0 = Interrupt is disabled
bit 7 TRMT: Transmit Shifter Empty Interrupt Flag bit (read-only)
1 = Transmit Shift Register (TSR) is empty (end of last Stop bit when STPMD = 1 or middle of first Stop
bit when STPMD = 0)
0 = Transmit Shift Register is not empty
bit 6 PERR: Parity Error/Address Received/Forward Frame Interrupt Flag bit
LIN and Parity Modes:
1 = Parity error detected
0 = No parity error detected
Address Mode:
1 = Address received
0 = No address detected
All Other Modes:
Not used.
2017-2018 Microchip Technology Inc. DS70005349E-page 363
dsPIC33CK256MP508 FAMILY
bit 5 ABDOVF: Auto-Baud Rate Acquisition Interrupt Flag bit (must be cleared by software)
1 = BRG rolled over during the auto-baud rate acquisition sequence (must be cleared in software)
0 = BRG has not rolled over during the auto-baud rate acquisition sequence
bit 4 CERIF: Checksum Error Interrupt Flag bit (must be cleared by software)
1 = Checksum error
0 = No checksum error
bit 3 FERR: Framing Error Interrupt Flag bit
1 = Framing Error: Inverted level of the Stop bit corresponding to the topmost character in the buffer;
propagates through the buffer with the received character
0 = No framing error
bit 2 RXBKIF: Receive Break Interrupt Flag bit (must be cleared by software)
1 = A Break was received
0 = No Break was detected
bit 1 OERR: Receive Buffer Overflow Interrupt Flag bit (must be cleared by software)
1 = Receive buffer has overflowed
0 = Receive buffer has not overflowed
bit 0 TXCIF: Transmit Collision Interrupt Flag bit (must be cleared by software)
1 = Transmitted word is not equal to the received word
0 = Transmitted word is equal to the received word
REGISTER 16-3: UxSTA: UARTx STATUS REGISTER (CONTINUED)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 364 2017-2018 Microchip Technology Inc.
REGISTER 16-4: UxSTAH: UARTx STATUS REGISTER HIGH
U-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0
— UTXISEL2 UTXISEL1 UTXISEL0 — URXISEL2(1)URXISEL1(1)URXISEL0(1)
bit 15 bit 8
HS/R/W-0 R/W-0 R/S-1 R-0 R-1 R-1 R/S-1 R-0
TXWRE STPMD UTXBE UTXBF RIDLE XON URXBE URXBF
bit 7 bit 0
Legend: HS = Hardware Settable bit S = Settable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 UTXISEL<2:0>: UART Transmit Interrupt Select bits
111 = Sets transmit interrupt when there is one empty slot left in the buffer
...
010 = Sets transmit interrupt when there are six empty slots or more in the buffer
001 = Sets transmit interrupt when there are seven empty slots or more in the buffer
000 = Sets transmit interrupt when there are eight empty slots in the buffer; TX buffer is empty
bit 11 Unimplemented: Read as ‘0’
bit 10-8 URXISEL<2:0>: UART Receive Interrupt Select bits(1)
111 = Triggers receive interrupt when there are eight words in the buffer; RX buffer is full
...
001 = Triggers receive interrupt when there are two words or more in the buffer
000 = Triggers receive interrupt when there is one word or more in the buffer
bit 7 TXWRE: TX Write Transmit Error Status bit
LIN and Parity Modes:
1 = A new byte was written when the buffer was full or when P2<8:0> = 0 (must be cleared by software)
0 = No error
Address Detect Mode:
1 = A new byte was written when the buffer was full or to P1<8:0> when P1x was full (must be cleared
by software)
0 = No error
Other Modes:
1 = A new byte was written when the buffer was full (must be cleared by software)
0 = No error
bit 6 STPMD: Stop Bit Detection Mode bit
1 = Triggers RXIF at the end of the last Stop bit
0 = Triggers RXIF in the middle of the first (or second, depending on the STSEL<1:0> setting) Stop bit
bit 5 UTXBE: UART TX Buffer Empty Status bit
1 = Transmit buffer is empty; writing ‘1’ when UTXEN = 0 will reset the TX FIFO Pointers and counters
0 = Transmit buffer is not empty
bit 4 UTXBF: UART TX Buffer Full Status bit
1 = Transmit buffer is full
0 = Transmit buffer is not full
bit 3 RIDLE: Receive Idle bit
1 = UART RX line is in the Idle state
0 = UART RX line is receiving something
Note 1: The receive watermark interrupt is not set if PERR or FERR is set and the corresponding IE bit is set.
2017-2018 Microchip Technology Inc. DS70005349E-page 365
dsPIC33CK256MP508 FAMILY
bit 2 XON: UART in XON Mode bit
Only valid when FLO<1:0> control bits are set to XON/XOFF mode.
1 = UART has received XON
0 = UART has not received XON or XOFF was received
bit 1 URXBE: UART RX Buffer Empty Status bit
1 = Receive buffer is empty; writing ‘1’ when URXEN = 0 will reset the RX FIFO Pointers and counters
0 = Receive buffer is not empty
bit 0 URXBF: UART RX Buffer Full Status bit
1 = Receive buffer is full
0 = Receive buffer is not full
REGISTER 16-4: UxSTAH: UARTx STATUS REGISTER HIGH (CONTINUED)
Note 1: The receive watermark interrupt is not set if PERR or FERR is set and the corresponding IE bit is set.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 366 2017-2018 Microchip Technology Inc.
REGISTER 16-5: UxBRG: UARTx BAUD RATE REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
BRG<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
BRG<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 BRG<15:0>: Baud Rate Divisor bits
REGISTER 16-6: UxBRGH: UARTx BAUD RATE REGISTER HIGH
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — — BRG<19:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-4 Unimplemented: Read as ‘0’
bit 3-0 BRG<19:16>: Baud Rate Divisor bits
2017-2018 Microchip Technology Inc. DS70005349E-page 367
dsPIC33CK256MP508 FAMILY
REGISTER 16-7: UxRXREG: UARTx RECEIVE BUFFER REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R-x R-x R-x R-x R-x R-x R-x R-x
RXREG<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-0 RXREG<7:0>: Received Character Data bits 7-0
REGISTER 16-8: UxTXREG: UARTx TRANSMIT BUFFER REGISTER
W-x U-0 U-0 U-0 U-0 U-0 U-0 U-0
LAST — — — — — — —
bit 15 bit 8
W-x W-x W-x W-x W-x W-x W-x W-x
TXREG7 TXREG6 TXREG5 TXREG4 TXREG3 TXREG2 TXREG1 TXREG0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 LAST: Last Byte Indicator for Smart Card Support bit
bit 14-8 Unimplemented: Read as ‘0’
bit 7-0 TXREG<7:0>: Transmitted Character Data bits 7-0
If the buffer is full, further writes to the buffer are ignored.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 368 2017-2018 Microchip Technology Inc.
REGISTER 16-9: UxP1: UARTx TIMING PARAMETER 1 REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0
— — — — — — — P1<8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
P1<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-9 Unimplemented: Read as ‘0’
bit 8-0 P1<8:0>: Parameter 1 bits
DMX TX:
Number of Bytes to Transmit – 1 (not including Start code).
LIN Master TX:
PID to transmit (bits<5:0>).
Asynchronous TX with Address Detect:
Address to transmit. A ‘1’ is automatically inserted into bit 9 (bits<7:0>).
Smart Card Mode:
Guard Time Counter bits. This counter is operated on the bit clock whose period is always equal to one
ETU (bits<8:0>).
Other Modes:
Not used.
2017-2018 Microchip Technology Inc. DS70005349E-page 369
dsPIC33CK256MP508 FAMILY
REGISTER 16-10: UxP2: UARTx TIMING PARAMETER 2 REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0
— — — — — — —P2<8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
P2<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-9 Unimplemented: Read as ‘0’
bit 8-0 P2<8:0>: Parameter 2 bits
DMX RX:
The first byte number to receive – 1, not including Start code (bits<8:0>).
LIN Slave TX:
Number of bytes to transmit (bits<7:0>).
Asynchronous RX with Address Detect:
Address to start matching (bits<7:0>).
Smart Card Mode:
Block Time Counter bits. This counter is operated on the bit clock whose period is always equal to
one ETU (bits<8:0>).
Other Modes:
Not used.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 370 2017-2018 Microchip Technology Inc.
REGISTER 16-11: UxP3: UARTx TIMING PARAMETER 3 REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
P3<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
P3<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 P3<15:0>: Parameter 3 bits
DMX RX:
The last byte number to receive – 1, not including Start code (bits<8:0>).
LIN Slave RX:
Number of bytes to receive (bits<7:0>).
Asynchronous RX:
Used to mask the UxP2 address bits; 1 = P2 address bit is used, 0 = P2 address bit is masked off
(bits<7:0>).
Smart Card Mode:
Waiting Time Counter bits (bits<15:0>).
Other Modes:
Not used.
REGISTER 16-12: UxP3H: UARTx TIMING PARAMETER 3 REGISTER HIGH
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
P3<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-0 P3<23:16>: Parameter 3 High bits
Smart Card Mode:
Waiting Time Counter bits (bits<23:16>).
Other Modes:
Not used.
2017-2018 Microchip Technology Inc. DS70005349E-page 371
dsPIC33CK256MP508 FAMILY
REGISTER 16-13: UxTXCHK: UARTx TRANSMIT CHECKSUM REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TXCHK<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-0 TXCHK<7:0>: Transmit Checksum bits (calculated from TX words)
LIN Modes:
C0EN = 1: Sum of all transmitted data + addition carries, including PID.
C0EN = 0: Sum of all transmitted data + addition carries, excluding PID.
LIN Slave:
Cleared when Break is detected.
LIN Master/Slave:
Cleared when Break is detected.
Other Modes:
C0EN = 1: Sum of every byte transmitted + addition carries.
C0EN = 0: Value remains unchanged.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 372 2017-2018 Microchip Technology Inc.
REGISTER 16-14: UxRXCHK: UARTx RECEIVE CHECKSUM REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
RXCHK<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-0 RXCHK<7:0>: Receive Checksum bits (calculated from RX words)
LIN Modes:
C0EN = 1: Sum of all received data + addition carries, including PID.
C0EN = 0: Sum of all received data + addition carries, excluding PID.
LIN Slave:
Cleared when Break is detected.
LIN Master/Slave:
Cleared when Break is detected.
Other Modes:
C0EN = 1: Sum of every byte received + addition carries.
C0EN = 0: Value remains unchanged.
2017-2018 Microchip Technology Inc. DS70005349E-page 373
dsPIC33CK256MP508 FAMILY
REGISTER 16-15: UxSCCON: UARTx SMART CARD CONFIGURATION REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0
—— TXRPT1 TXRPT0 CONV T0PD PRTCL —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-6 Unimplemented: Read as ‘0’
bit 5-4 TXRPT<1:0>: Transmit Repeat Selection bits
11 = Retransmit the error byte four times
10 = Retransmit the error byte three times
01 = Retransmit the error byte twice
00 = Retransmit the error byte once
bit 3 CONV: Logic Convention Selection bit
1 = Inverse logic convention
0 = Direct logic convention
bit 2 T0PD: Pull-Down Duration for T = 0 Error Handling bit
1 = Two ETU
0 = One ETU
bit 1 PRTCL: Smart Card Protocol Selection bit
1 = T = 1
0 = T = 0
bit 0 Unimplemented: Read as ‘0’
dsPIC33CK256MP508 FAMILY
DS70005349E-page 374 2017-2018 Microchip Technology Inc.
REGISTER 16-16: UxSCINT: UARTx SMART CARD INTERRUPT REGISTER
U-0 U-0 HS/R/W-0 HS/R/W-0 U-0 HS/R/W-0 HS/R/W-0 HS/R/W-0
—— RXRPTIF TXRPTIF — BTCIF WTCIF GTCIF
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0
—— RXRPTIE TXRPTIE —BTCIEWTCIEGTCIE
bit 7 bit 0
Legend: HS = Hardware Settable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13 RXRPTIF: Receive Repeat Interrupt Flag bit
1 = Parity error has persisted after the same character has been received five times (four retransmits)
0 = Flag is cleared
bit 12 TXRPTIF: Transmit Repeat Interrupt Flag bit
1 = Line error has been detected after the last retransmit per TXRPT<1:0>
0 = Flag is cleared
bit 11 Unimplemented: Read as ‘0’
bit 10 BTCIF: Block Time Counter Interrupt Flag bit
1 = Block Time Counter has reached 0
0 = Block Time Counter has not reached 0
bit 9 WTCIF: Waiting Time Counter Interrupt Flag bit
1 = Waiting Time Counter has reached 0
0 = Waiting Time Counter has not reached 0
bit 8 GTCIF: Guard Time Counter Interrupt Flag bit
1 = Guard Time Counter has reached 0
0 = Guard Time Counter has not reached 0
bit 7-6 Unimplemented: Read as ‘0’
bit 5 RXRPTIE: Receive Repeat Interrupt Enable bit
1 = An interrupt is invoked when a parity error has persisted after the same character has been
received five times (four retransmits)
0 = Interrupt is disabled
bit 4 TXRPTIE: Transmit Repeat Interrupt Enable bit
1 = An interrupt is invoked when a line error is detected after the last retransmit per TXRPT<1:0> has
been completed
0 = Interrupt is disabled
bit 3 Unimplemented: Read as ‘0’
bit 2 BTCIE: Block Time Counter Interrupt Enable bit
1 = Block Time Counter interrupt is enabled
0 = Block Time Counter interrupt is disabled
bit 1 WTCIE: Waiting Time Counter Interrupt Enable bit
1 = Waiting Time Counter interrupt is enabled
0 = Waiting Time Counter Interrupt is disabled
bit 0 GTCIE: Guard Time Counter interrupt enable bit
1 = Guard Time Counter interrupt is enabled
0 = Guard Time Counter interrupt is disabled
2017-2018 Microchip Technology Inc. DS70005349E-page 375
dsPIC33CK256MP508 FAMILY
REGISTER 16-17: UxINT: UARTx INTERRUPT REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
HS/R/W-0 HS/R/W-0 U-0 U-0 U-0 R/W-0 U-0 U-0
WUIF ABDIF — — — ABDIE — —
bit 7 bit 0
Legend: HS = Hardware Settable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7 WUIF: Wake-up Interrupt Flag bit
1 = Sets when WAKE = 1 and RX makes a ‘1’-to-‘0’ transition; triggers event interrupt (must be cleared
by software)
0 = WAKE is not enabled or WAKE is enabled, but no wake-up event has occurred
bit 6 ABDIF: Auto-Baud Completed Interrupt Flag bit
1 = Sets when ABD sequence makes the final ‘1’-to-‘0’ transition; triggers event interrupt (must be
cleared by software)
0 = ABAUD is not enabled or ABAUD is enabled but auto-baud has not completed
bit 5-3 Unimplemented: Read as ‘0’
bit 2 ABDIE: Auto-Baud Completed Interrupt Enable Flag bit
1 = Allows ABDIF to set an event interrupt
0 = ABDIF does not set an event interrupt
bit 1-0 Unimplemented: Read as ‘0’
dsPIC33CK256MP508 FAMILY
DS70005349E-page 376 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 377
dsPIC33CK256MP508 FAMILY
17.0 SERIAL PERIPHERAL
INTERFACE (SPI)
The Serial Peripheral Interface (SPI) module is a
synchronous serial interface, useful for communicating
with other peripheral or microcontroller devices. These
peripheral devices may be serial EEPROMs, shift regis-
ters, display drivers, A/D Converters, etc. The SPI module
is compatible with the Motorola® SPI and SIOP interfaces.
All devices in the dsPIC33CK256MP508 family include
three SPI modules. On 48, 64 and 80-pin devices, SPI
instance SPI2 can work up to 50 MHz speed when
selected as a non-PPS pin. The selection is done using
the SPI2PIN bit (FDEVOPT<13>). If the bit for SPI2PIN
is ‘1’, the PPS pin will be used. When SPI2PIN is ‘0’,
the SPI signals are routed to dedicated pins.
The module supports operation in two Buffer modes. In
Standard mode, data is shifted through a single serial
buffer. In Enhanced Buffer mode, data is shifted
through a FIFO buffer. The FIFO level depends on the
configured mode.
Variable length data can be transmitted and received,
from 2 to 32 bits.
The module also supports a basic framed SPI protocol
while operating in either Master or Slave mode. A total
of four framed SPI configurations are supported.
The module also supports Audio modes. Four different
Audio modes are available.
•I
2S mode
• Left Justified mode
• Right Justified mode
• PCM/DSP mode
In each of these modes, the serial clock is free-running
and audio data is always transferred.
If an audio protocol data transfer takes place between
two devices, then usually one device is the Master and
the other is the Slave. However, audio data can be
transferred between two Slaves. Because the audio
protocols require free-running clocks, the Master can
be a third-party controller. In either case, the Master
generates two free-running clocks: SCKx and LRC
(Left, Right Channel Clock/SSx/FSYNC).
The SPI serial interface consists of four pins:
• SDIx: Serial Data Input
• SDOx: Serial Data Output
• SCKx: Shift Clock Input or Output
• SSx: Active-Low Slave Select or Frame
Synchronization I/O Pulse
The SPI module can be configured to operate using
two, three or four pins. In the 3-pin mode, SSx is not
used. In the 2-pin mode, both SDOx and SSx are not
used.
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to “Serial Peripheral Inter-
face (SPI) with Audio Codec Support”
(www.microchip.com/DS70005136) in the
“dsPIC33/PIC24 Family Reference
Manual”.
Note: FIFO depth for this device is four (in 8-Bit
Data mode).
Note: Do not perform Read-Modify-Write opera-
tions (such as bit-oriented instructions) on
the SPIxBUF register in either Standard or
Enhanced Buffer mode.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 378 2017-2018 Microchip Technology Inc.
The SPI module has the ability to generate three inter-
rupts reflecting the events that occur during the data
communication. The following types of interrupts can
be generated:
1. Receive interrupts are signalled by SPIxRXIF.
This event occurs when:
- RX watermark interrupt
- SPIROV = 1
- SPIRBF = 1
- SPIRBE = 1
provided the respective mask bits are enabled in
SPIxIMSKL/H.
2. Transmit interrupts are signalled by SPIxTXIF.
This event occurs when:
- TX watermark interrupt
- SPITUR = 1
- SPITBF = 1
- SPITBE = 1
provided the respective mask bits are enabled in
SPIxIMSKL/H.
3. General interrupts are signalled by SPIxGIF.
This event occurs when:
- FRMERR = 1
- SPIBUSY = 1
-SRMT = 1
provided the respective mask bits are enabled in
SPIxIMSKL/H.
Block diagrams of the module in Standard and Enhanced
modes are shown in Figure 17-1 and Figure 17-2.
To set up the SPIx module for the Standard Master
mode of operation:
1. If using interrupts:
a) Clear the interrupt flag bits in the respective
IFSx register.
b) Set the interrupt enable bits in the
respective IECx register.
c) Write the SPIxIP bits in the respective IPCx
register to set the interrupt priority.
2. Write the desired settings to the SPIxCON1L
and SPIxCON1H registers with the MSTEN bit
(SPIxCON1L<5>) = 1.
3. Clear the SPIROV bit (SPIxSTATL<6>).
4. Enable SPIx operation by setting the SPIEN bit
(SPIxCON1L<15>).
5. Write the data to be transmitted to the SPIxBUFL
and SPIxBUFH registers. Transmission (and
reception) will start as soon as data is written to
the SPIxBUFL and SPIxBUFH registers.
To set up the SPIx module for the Standard Slave mode
of operation:
1. Clear the SPIxBUF registers.
2. If using interrupts:
a) Clear the SPIxBUFL and SPIxBUFH
registers.
b) Set the interrupt enable bits in the
respective IECx register.
c) Write the SPIxIP bits in the respective IPCx
register to set the interrupt priority.
3. Write the desired settings to the SPIxCON1L,
SPIxCON1H and SPIxCON2L registers with
the MSTEN bit (SPIxCON1L<5>) = 0.
4. Clear the SMP bit.
5. If the CKE bit (SPIxCON1L<8>) is set, then the
SSEN bit (SPIxCON1L<7>) must be set to
enable the SSx pin.
6. Clear the SPIROV bit (SPIxSTATL<6>).
7. Enable SPIx operation by setting the SPIEN bit
(SPIxCON1L<15>).
Note: In this section, the SPI modules are
referred to together as SPIx, or separately
as SPI1, SPI2 or SPI3. Special Function
Registers will follow a similar notation. For
example, SPIxCON1 and SPIxCON2
refer to the control registers for any of the
three SPI modules.
2017-2018 Microchip Technology Inc. DS70005349E-page 379
dsPIC33CK256MP508 FAMILY
FIGURE 17-1: SPIx MODULE BLOCK DIAGRAM (STANDARD MODE)
Read Write
Internal
Data Bus
SDIx
SDOx
SSx/FSYNC
SCKx
MSB
Shift
Control
Edge
Select
Enable Master Clock
Transmit
SPIxTXB
SPIxRXB
F
P
REFO
MCLKEN
SPIxRXSR
URDTEN
1
0
TXELM<5:0> =
6’b0
MSB
Baud Rate
Generator
SSx & FSYNC
Control
Clock
Control
SPIxTXSR
Clock
Control
Edge
Select
Receive
SPIxURDT
dsPIC33CK256MP508 FAMILY
DS70005349E-page 380 2017-2018 Microchip Technology Inc.
To set up the SPIx module for the Enhanced Buffer
Master mode of operation:
1. If using interrupts:
a) Clear the interrupt flag bits in the respective
IFSx register.
b) Set the interrupt enable bits in the
respective IECx register.
c) Write the SPIxIP bits in the respective IPCx
register.
2. Write the desired settings to the SPIxCON1L,
SPIxCON1H and SPIxCON2L registers with
MSTEN (SPIxCON1L<5>) = 1.
3. Clear the SPIROV bit (SPIxSTATL<6>).
4. Select Enhanced Buffer mode by setting the
ENHBUF bit (SPIxCON1L<0>).
5. Enable SPIx operation by setting the SPIEN bit
(SPIxCON1L<15>).
6. Write the data to be transmitted to the
SPIxBUFL and SPIxBUFH registers. Transmis-
sion (and reception) will start as soon as data is
written to the SPIxBUFL and SPIxBUFH
registers.
To set up the SPIx module for the Enhanced Buffer
Slave mode of operation:
1. Clear the SPIxBUFL and SPIxBUFH registers.
2. If using interrupts:
a) Clear the interrupt flag bits in the respective
IFSx register.
b) Set the interrupt enable bits in the
respective IECx register.
c) Write the SPIxIP bits in the respective IPCx
register to set the interrupt priority.
3. Write the desired settings to the SPIxCON1L,
SPIxCON1H and SPIxCON2L registers with the
MSTEN bit (SPIxCON1L<5>) = 0.
4. Clear the SMP bit.
5. If the CKE bit is set, then the SSEN bit must be
set, thus enabling the SSx pin.
6. Clear the SPIROV bit (SPIxSTATL<6>).
7. Select Enhanced Buffer mode by setting the
ENHBUF bit (SPIxCON1L<0>).
8. Enable SPIx operation by setting the SPIEN bit
(SPIxCON1L<15>).
FIGURE 17-2: SPIx MODULE BLOCK DIAGRAM (ENHANCED MODE)
Read Write
Internal
Data Bus
SDIx
SDOx
SSx/FSYNC
SCKx
MSB
Shift
Control
Edge
Select
Enable Master Clock
Transmit
SPIxRXB
F
P
REFO
MCLKEN
SPIxRXSR
URDTEN
1
0
TXELM<5:0> =
6’b0
MSB
Baud Rate
Generator
SSx and
FSYNC Control
Clock
Control
SPIxTXSR
Clock
Control
Receive
SPIxURDT
SPIxTXB
Edge
Select
2017-2018 Microchip Technology Inc. DS70005349E-page 381
dsPIC33CK256MP508 FAMILY
To set up the SPIx module for Audio mode:
1. Clear the SPIxBUFL and SPIxBUFH registers.
2. If using interrupts:
a) Clear the interrupt flag bits in the respective
IFSx register.
b) Set the interrupt enable bits in the
respective IECx register.
a) Write the SPIxIP bits in the respective IPCx
register to set the interrupt priority.
3. Write the desired settings to the SPIxCON1L,
SPIxCON1H and SPIxCON2L registers with
AUDEN (SPIxCON1H<15>) = 1.
4. Clear the SPIROV bit (SPIxSTATL<6>).
5. Enable SPIx operation by setting the SPIEN bit
(SPIxCON1L<15>).
6. Write the data to be transmitted to the SPIxBUFL
and SPIxBUFH registers. Transmission (and
reception) will start as soon as data is written to
the SPIxBUFL and SPIxBUFH registers.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 382 2017-2018 Microchip Technology Inc.
17.1 Control Registers
REGISTER 17-1: SPIxCON1L: SPIx CONTROL REGISTER 1 LOW
R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SPIEN — SPISIDL DISSDO MODE32(1,4)MODE16(1,4)SMP CKE(1)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SSEN(2)CKP MSTEN DISSDI DISSCK MCLKEN(3)SPIFE ENHBUF
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 SPIEN: SPIx On bit
1 = Enables module
0 = Turns off and resets module, disables clocks, disables interrupt event generation, allows SFR
modifications
bit 14 Unimplemented: Read as ‘0’
bit 13 SPISIDL: SPIx Stop in Idle Mode bit
1 = Halts in CPU Idle mode
0 = Continues to operate in CPU Idle mode
bit 12 DISSDO: Disable SDOx Output Port bit
1 = SDOx pin is not used by the module; pin is controlled by port function
0 = SDOx pin is controlled by the module
bit 11-10 MODE32 and MODE16: Serial Word Length Select bits(1,4)
bit 9 SMP: SPIx Data Input Sample Phase bit
Master Mode:
1 = Input data is sampled at the end of data output time
0 = Input data is sampled at the middle of data output time
Slave Mode:
Input data is always sampled at the middle of data output time, regardless of the SMP setting.
bit 8 CKE: SPIx Clock Edge Select bit(1)
1 = Transmit happens on transition from active clock state to Idle clock state
0 = Transmit happens on transition from Idle clock state to active clock state
Note 1: When AUDEN (SPIxCON1H<15>) = 1, this module functions as if CKE = 0, regardless of its actual value.
2: When FRMEN = 1, SSEN is not used.
3: MCLKEN can only be written when the SPIEN bit = 0.
4: This channel is not meaningful for DSP/PCM mode as LRC follows FRMSYPW.
MODE32 MODE16 AUDEN Communication
1x
0
32-Bit
01 16-Bit
00 8-Bit
11
1
24-Bit Data, 32-Bit FIFO, 32-Bit Channel/64-Bit Frame
10 32-Bit Data, 32-Bit FIFO, 32-Bit Channel/64-Bit Frame
01 16-Bit Data, 16-Bit FIFO, 32-Bit Channel/64-Bit Frame
00 16-Bit FIFO, 16-Bit Channel/32-Bit Frame
2017-2018 Microchip Technology Inc. DS70005349E-page 383
dsPIC33CK256MP508 FAMILY
bit 7 SSEN: Slave Select Enable bit (Slave mode)(2)
1 = SSx pin is used by the macro in Slave mode; SSx pin is used as the Slave select input
0 = SSx pin is not used by the macro (SSx pin will be controlled by the port I/O)
bit 6 CKP: Clock Polarity Select bit
1 = Idle state for clock is a high level; active state is a low level
0 = Idle state for clock is a low level; active state is a high level
bit 5 MSTEN: Master Mode Enable bit
1 = Master mode
0 = Slave mode
bit 4 DISSDI: Disable SDIx Input Port bit
1 = SDIx pin is not used by the module; pin is controlled by port function
0 = SDIx pin is controlled by the module
bit 3 DISSCK: Disable SCKx Output Port bit
1 = SCKx pin is not used by the module; pin is controlled by port function
0 = SCKx pin is controlled by the module
bit 2 MCLKEN: Master Clock Enable bit(3)
1 = REFO is used by the BRG
0 = FP is used by the BRG
bit 1 SPIFE: Frame Sync Pulse Edge Select bit
1 = Frame Sync pulse (Idle-to-active edge) coincides with the first bit clock
0 = Frame Sync pulse (Idle-to-active edge) precedes the first bit clock
bit 0 ENHBUF: Enhanced Buffer Enable bit
1 = Enhanced Buffer mode is enabled
0 = Enhanced Buffer mode is disabled
REGISTER 17-1: SPIxCON1L: SPIx CONTROL REGISTER 1 LOW (CONTINUED)
Note 1: When AUDEN (SPIxCON1H<15>) = 1, this module functions as if CKE = 0, regardless of its actual value.
2: When FRMEN = 1, SSEN is not used.
3: MCLKEN can only be written when the SPIEN bit = 0.
4: This channel is not meaningful for DSP/PCM mode as LRC follows FRMSYPW.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 384 2017-2018 Microchip Technology Inc.
REGISTER 17-2: SPIxCON1H: SPIx CONTROL REGISTER 1 HIGH
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
AUDEN(1)SPISGNEXT IGNROV IGNTUR AUDMONO(2)URDTEN(3)AUDMOD1(4)AUDMOD0(4)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FRMEN FRMSYNC FRMPOL MSSEN FRMSYPW FRMCNT2 FRMCNT1 FRMCNT0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 AUDEN: Audio Codec Support Enable bit(1)
1 = Audio protocol is enabled; MSTEN controls the direction of both SCKx and frame (a.k.a. LRC), and
this module functions as if FRMEN = 1, FRMSYNC = MSTEN, FRMCNT<2:0> = 001 and SMP = 0,
regardless of their actual values
0 = Audio protocol is disabled
bit 14 SPISGNEXT: SPIx Sign-Extend RX FIFO Read Data Enable bit
1 = Data from RX FIFO is sign-extended
0 = Data from RX FIFO is not sign-extended
bit 13 IGNROV: Ignore Receive Overflow bit
1 = A Receive Overflow (ROV) is NOT a critical error; during ROV, data in the FIFO is not overwritten
by the receive data
0 = A ROV is a critical error that stops SPI operation
bit 12 IGNTUR: Ignore Transmit Underrun bit
1 = A Transmit Underrun (TUR) is NOT a critical error and data indicated by URDTEN is transmitted
until the SPIxTXB is not empty
0 = A TUR is a critical error that stops SPI operation
bit 11 AUDMONO: Audio Data Format Transmit bit(2)
1 = Audio data is mono (i.e., each data word is transmitted on both left and right channels)
0 = Audio data is stereo
bit 10 URDTEN: Transmit Underrun Data Enable bit(3)
1 = Transmits data out of SPIxURDT register during Transmit Underrun conditions
0 = Transmits the last received data during Transmit Underrun conditions
bit 9-8 AUDMOD<1:0>: Audio Protocol Mode Selection bits(4)
11 = PCM/DSP mode
10 = Right Justified mode: This module functions as if SPIFE = 1, regardless of its actual value
01 = Left Justified mode: This module functions as if SPIFE = 1, regardless of its actual value
00 = I2S mode: This module functions as if SPIFE = 0, regardless of its actual value
bit 7 FRMEN: Framed SPIx Support bit
1 = Framed SPIx support is enabled (SSx pin is used as the FSYNC input/output)
0 = Framed SPIx support is disabled
Note 1: AUDEN can only be written when the SPIEN bit = 0.
2: AUDMONO can only be written when the SPIEN bit = 0 and is only valid for AUDEN = 1.
3: URDTEN is only valid when IGNTUR = 1.
4: AUDMOD<1:0> can only be written when the SPIEN bit = 0 and is only valid when AUDEN = 1. When
NOT in PCM/DSP mode, this module functions as if FRMSYPW = 1, regardless of its actual value.
2017-2018 Microchip Technology Inc. DS70005349E-page 385
dsPIC33CK256MP508 FAMILY
bit 6 FRMSYNC: Frame Sync Pulse Direction Control bit
1 = Frame Sync pulse input (Slave)
0 = Frame Sync pulse output (Master)
bit 5 FRMPOL: Frame Sync/Slave Select Polarity bit
1 = Frame Sync pulse/Slave select is active-high
0 = Frame Sync pulse/Slave select is active-low
bit 4 MSSEN: Master Mode Slave Select Enable bit
1 = SPIx Slave select support is enabled with polarity determined by FRMPOL (SSx pin is automatically
driven during transmission in Master mode)
0 = Slave select SPIx support is disabled (SSx pin will be controlled by port I/O)
bit 3 FRMSYPW: Frame Sync Pulse-Width bit
1 = Frame Sync pulse is one serial word length wide (as defined by MODE<32,16>/WLENGTH<4:0>)
0 = Frame Sync pulse is one clock (SCKx) wide
bit 2-0 FRMCNT<2:0>: Frame Sync Pulse Counter bits
Controls the number of serial words transmitted per Sync pulse.
111 = Reserved
110 = Reserved
101 = Generates a Frame Sync pulse on every 32 serial words
100 = Generates a Frame Sync pulse on every 16 serial words
011 = Generates a Frame Sync pulse on every 8 serial words
010 = Generates a Frame Sync pulse on every 4 serial words
001 = Generates a Frame Sync pulse on every 2 serial words (value used by audio protocols)
000 = Generates a Frame Sync pulse on each serial word
REGISTER 17-2: SPIxCON1H: SPIx CONTROL REGISTER 1 HIGH (CONTINUED)
Note 1: AUDEN can only be written when the SPIEN bit = 0.
2: AUDMONO can only be written when the SPIEN bit = 0 and is only valid for AUDEN = 1.
3: URDTEN is only valid when IGNTUR = 1.
4: AUDMOD<1:0> can only be written when the SPIEN bit = 0 and is only valid when AUDEN = 1. When
NOT in PCM/DSP mode, this module functions as if FRMSYPW = 1, regardless of its actual value.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 386 2017-2018 Microchip Technology Inc.
REGISTER 17-3: SPIxCON2L: SPIx CONTROL REGISTER 2 LOW
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — —WLENGTH<4:0>
(1,2)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-5 Unimplemented: Read as ‘0’
bit 4-0 WLENGTH<4:0>: Variable Word Length bits(1,2)
11111 = 32-bit data
11110 = 31-bit data
11101 = 30-bit data
11100 = 29-bit data
11011 = 28-bit data
11010 = 27-bit data
11001 = 26-bit data
11000 = 25-bit data
10111 = 24-bit data
10110 = 23-bit data
10101 = 22-bit data
10100 = 21-bit data
10011 = 20-bit data
10010 = 19-bit data
10001 = 18-bit data
10000 = 17-bit data
01111 = 16-bit data
01110 = 15-bit data
01101 = 14-bit data
01100 = 13-bit data
01011 = 12-bit data
01010 = 11-bit data
01001 = 10-bit data
01000 = 9-bit data
00111 = 8-bit data
00110 = 7-bit data
00101 = 6-bit data
00100 = 5-bit data
00011 = 4-bit data
00010 = 3-bit data
00001 = 2-bit data
00000 = See MODE<32,16> bits in SPIxCON1L<11:10>
Note 1: These bits are effective when AUDEN = 0 only.
2: Varying the length by changing these bits does not affect the depth of the TX/RX FIFO.
2017-2018 Microchip Technology Inc. DS70005349E-page 387
dsPIC33CK256MP508 FAMILY
REGISTER 17-4: SPIxSTATL: SPIx STATUS REGISTER LOW
U-0 U-0 U-0 HS/R/C-0 HSC/R-0 U-0 U-0 HSC/R-0
— — — FRMERR SPIBUSY —— SPITUR(1)
bit 15 bit 8
HSC/R-0 HS/R/C-0 HSC/R-1 U-0 HSC/R-1 U-0 HSC/R-0 HSC/R-0
SRMT SPIROV SPIRBE — SPITBE — SPITBF SPIRBF
bit 7 bit 0
Legend: C = Clearable bit U = Unimplemented, read as ‘0’
R = Readable bit W = Writable bit HSC = Hardware Settable/Clearable bit
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared HS = Hardware Settable bit
bit 15-13 Unimplemented: Read as ‘0’
bit 12 FRMERR: SPIx Frame Error Status bit
1 = Frame error is detected
0 = No frame error is detected
bit 11 SPIBUSY: SPIx Activity Status bit
1 = Module is currently busy with some transactions
0 = No ongoing transactions (at time of read)
bit 10-9 Unimplemented: Read as ‘0’
bit 8 SPITUR: SPIx Transmit Underrun Status bit(1)
1 = Transmit buffer has encountered a Transmit Underrun condition
0 = Transmit buffer does not have a Transmit Underrun condition
bit 7 SRMT: Shift Register Empty Status bit
1 = No current or pending transactions (i.e., neither SPIxTXB or SPIxTXSR contains data to transmit)
0 = Current or pending transactions
bit 6 SPIROV: SPIx Receive Overflow Status bit
1 = A new byte/half-word/word has been completely received when the SPIxRXB was full
0 = No overflow
bit 5 SPIRBE: SPIx RX Buffer Empty Status bit
1 = RX buffer is empty
0 = RX buffer is not empty
Standard Buffer Mode:
Automatically set in hardware when SPIxBUF is read from, reading SPIxRXB. Automatically cleared in
hardware when SPIx transfers data from SPIxRXSR to SPIxRXB.
Enhanced Buffer Mode:
Indicates RXELM<5:0> = 000000.
bit 4 Unimplemented: Read as ‘0’
Note 1: SPITUR is cleared when SPIEN = 0. When IGNTUR = 1, SPITUR provides dynamic status of the Transmit
Underrun condition, but does not stop RX/TX operation and does not need to be cleared by software.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 388 2017-2018 Microchip Technology Inc.
bit 3 SPITBE: SPIx Transmit Buffer Empty Status bit
1 = SPIxTXB is empty
0 = SPIxTXB is not empty
Standard Buffer Mode:
Automatically set in hardware when SPIx transfers data from SPIxTXB to SPIxTXSR. Automatically
cleared in hardware when SPIxBUF is written, loading SPIxTXB.
Enhanced Buffer Mode:
Indicates TXELM<5:0> = 000000.
bit 2 Unimplemented: Read as ‘0’
bit 1 SPITBF: SPIx Transmit Buffer Full Status bit
1 = SPIxTXB is full
0 = SPIxTXB not full
Standard Buffer Mode:
Automatically set in hardware when SPIxBUF is written, loading SPIxTXB. Automatically cleared in
hardware when SPIx transfers data from SPIxTXB to SPIxTXSR.
Enhanced Buffer Mode:
Indicates TXELM<5:0> = 111111.
bit 0 SPIRBF: SPIx Receive Buffer Full Status bit
1 = SPIxRXB is full
0 = SPIxRXB is not full
Standard Buffer Mode:
Automatically set in hardware when SPIx transfers data from SPIxRXSR to SPIxRXB. Automatically
cleared in hardware when SPIxBUF is read from, reading SPIxRXB.
Enhanced Buffer Mode:
Indicates RXELM<5:0> = 111111.
REGISTER 17-4: SPIxSTATL: SPIx STATUS REGISTER LOW (CONTINUED)
Note 1: SPITUR is cleared when SPIEN = 0. When IGNTUR = 1, SPITUR provides dynamic status of the Transmit
Underrun condition, but does not stop RX/TX operation and does not need to be cleared by software.
2017-2018 Microchip Technology Inc. DS70005349E-page 389
dsPIC33CK256MP508 FAMILY
REGISTER 17-5: SPIxSTATH: SPIx STATUS REGISTER HIGH
U-0 U-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0
—— RXELM5(3)RXELM4(2)RXELM3(1)RXELM2 RXELM1 RXELM0
bit 15 bit 8
U-0 U-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0
——TXELM5
(3)TXELM4(2)TXELM3(1)TXELM2 TXELM1 TXELM0
bit 7 bit 0
Legend: HSC = Hardware Settable/Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 RXELM<5:0>: Receive Buffer Element Count bits (valid in Enhanced Buffer mode)(1,2,3)
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 TXELM<5:0>: Transmit Buffer Element Count bits (valid in Enhanced Buffer mode)(1,2,3)
Note 1: RXELM3 and TXELM3 bits are only present when FIFODEPTH = 8 or higher.
2: RXELM4 and TXELM4 bits are only present when FIFODEPTH = 16 or higher.
3: RXELM5 and TXELM5 bits are only present when FIFODEPTH = 32.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 390 2017-2018 Microchip Technology Inc.
REGISTER 17-6: SPIxIMSKL: SPIx INTERRUPT MASK REGISTER LOW
U-0 U-0 U-0 R/W-0 R/W-0 U-0 U-0 R/W-0
— — — FRMERREN BUSYEN —— SPITUREN
bit 15 bit 8
R/W-0 R/W-0 R/W-0 U-0 R/W-0 U-0 R/W-0 R/W-0
SRMTEN SPIROVEN SPIRBEN — SPITBEN — SPITBFEN SPIRBFEN
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12 FRMERREN: Enable Interrupt Events via FRMERR bit
1 = Frame error generates an interrupt event
0 = Frame error does not generate an interrupt event
bit 11 BUSYEN: Enable Interrupt Events via SPIBUSY bit
1 = SPIBUSY generates an interrupt event
0 = SPIBUSY does not generate an interrupt event
bit 10-9 Unimplemented: Read as ‘0’
bit 8 SPITUREN: Enable Interrupt Events via SPITUR bit
1 = Transmit Underrun (TUR) generates an interrupt event
0 = Transmit Underrun does not generate an interrupt event
bit 7 SRMTEN: Enable Interrupt Events via SRMT bit
1 = Shift Register Empty (SRMT) generates interrupt events
0 = Shift Register Empty does not generate interrupt events
bit 6 SPIROVEN: Enable Interrupt Events via SPIROV bit
1 = SPIx Receive Overflow (ROV) generates an interrupt event
0 = SPIx Receive Overflow does not generate an interrupt event
bit 5 SPIRBEN: Enable Interrupt Events via SPIRBE bit
1 = SPIx RX buffer empty generates an interrupt event
0 = SPIx RX buffer empty does not generate an interrupt event
bit 4 Unimplemented: Read as ‘0’
bit 3 SPITBEN: Enable Interrupt Events via SPITBE bit
1 = SPIx transmit buffer empty generates an interrupt event
0 = SPIx transmit buffer empty does not generate an interrupt event
bit 2 Unimplemented: Read as ‘0’
bit 1 SPITBFEN: Enable Interrupt Events via SPITBF bit
1 = SPIx transmit buffer full generates an interrupt event
0 = SPIx transmit buffer full does not generate an interrupt event
bit 0 SPIRBFEN: Enable Interrupt Events via SPIRBF bit
1 = SPIx receive buffer full generates an interrupt event
0 = SPIx receive buffer full does not generate an interrupt event
2017-2018 Microchip Technology Inc. DS70005349E-page 391
dsPIC33CK256MP508 FAMILY
REGISTER 17-7: SPIxIMSKH: SPIx INTERRUPT MASK REGISTER HIGH
R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
RXWIEN — RXMSK5(1)RXMSK4(1,4)RXMSK3(1,3)RXMSK2(1,2)RXMSK1(1)RXMSK0(1)
bit 15 bit 8
R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TXWIEN — TXMSK5(1)TXMSK4(1,4)TXMSK3(1,3)TXMSK2(1,2)TXMSK1(1)TXMSK0(1)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 RXWIEN: Receive Watermark Interrupt Enable bit
1 = Triggers receive buffer element watermark interrupt when RXMSK<5:0> RXELM<5:0>
0 = Disables receive buffer element watermark interrupt
bit 14 Unimplemented: Read as ‘0’
bit 13-8 RXMSK<5:0>: RX Buffer Mask bits(1,2,3,4)
RX mask bits; used in conjunction with the RXWIEN bit.
bit 7 TXWIEN: Transmit Watermark Interrupt Enable bit
1 = Triggers transmit buffer element watermark interrupt when TXMSK<5:0> = TXELM<5:0>
0 = Disables transmit buffer element watermark interrupt
bit 6 Unimplemented: Read as ‘0’
bit 5-0 TXMSK<5:0>: TX Buffer Mask bits(1,2,3,4)
TX mask bits; used in conjunction with the TXWIEN bit.
Note 1: Mask values higher than FIFODEPTH are not valid. The module will not trigger a match for any value in
this case.
2: RXMSK2 and TXMSK2 bits are only present when FIFODEPTH = 8 or higher.
3: RXMSK3 and TXMSK3 bits are only present when FIFODEPTH = 16 or higher.
4: RXMSK4 and TXMSK4 bits are only present when FIFODEPTH = 32.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 392 2017-2018 Microchip Technology Inc.
FIGURE 17-3: SPIx MASTER/SLAVE CONNECTION (STANDARD MODE)
Serial Transmit Buffer
(SPIxTXB)(2)
Shift Register
(SPIxTXSR)
LSb
MSb
SDIx
SDOx
Processor 2 (SPIx Slave)
SCKx
SSx(1)
Serial Receive Buffer
(SPIxRXB)(2)
Serial Receive Buffer
(SPIxRXB)(2)
Shift Register
(SPIxRXSR)
MSb LSb
SDOx
SDIx
Processor 1 (SPIx Master)
Serial Clock
MSSEN (SPIxCON1H<4>) =
1
and MSTEN (SPIxCON1L<5>) =
0
Note 1: Using the SSx pin in Slave mode of operation is optional.
2: User must write transmit data to read the received data from SPIxBUF. The SPIxTXB and SPIxRXB registers
are memory-mapped to SPIxBUF.
SCKx
Serial Transmit Buffer
(SPIxTXB)(2)
MSTEN (SPIxCON1L<5>) = 1)
SPIx Buffer
(SPIxBUF)(2)
SPIx Buffer
(SPIxBUF)(2)
Shift Register
(SPIxTXSR)
Shift Register
(SPIxRXSR)
MSb LSb LSb
MSb
SDOx SDIx
2017-2018 Microchip Technology Inc. DS70005349E-page 393
dsPIC33CK256MP508 FAMILY
FIGURE 17-4: SPIx MASTER/SLAVE CONNECTION (ENHANCED BUFFER MODES)
FIGURE 17-5: SPIx MASTER, FRAME MASTER CONNECTION DIAGRAM
Serial Transmit FIFO
(SPIxTXB)(2)
Shift Register
(SPIxTXSR)
LSb
MSb
SDIx
SDOx
Processor 2 (SPIx Slave)
SCKx
SSx(1)
Serial Receive FIFO
(SPIxRXB)(2)
Serial Receive FIFO
(SPIxRXB)(2)
Shift Register
(SPIxRXSR)
MSb LSb
SDOx
SDIx
Processor 1 (SPIx Master)
Serial Clock
MSSEN (SPIxCON1H<4>) =
1
and MSTEN (SPIxCON1L<5>) =
0
SCKx
Serial Transmit FIFO
(SPIxTXB)(2)
MSTEN (SPIxCON1L<5>) = 1)
SPIx Buffer
(SPIxBUF)(2)
SPIx Buffer
(SPIxBUF)(2)
Shift Register
(SPIxTXSR)
Shift Register
(SPIxRXSR)
MSb LSb LSb
MSb
SDOx SDIx
Note 1: Using the SSx pin in Slave mode of operation is optional.
2: User must write transmit data to read the received data from SPIxBUF. The SPIxTXB and SPIxRXB registers
are memory-mapped to SPIxBUF.
SDOx
SDIx
dsPIC33CK256MP508
Serial Clock
SSx
SCKx
Frame Sync
Pulse
SDIx
SDOx
Processor 2
SSx
SCKx
(SPIx Master, Frame Master)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 394 2017-2018 Microchip Technology Inc.
FIGURE 17-6: SPIx MASTER, FRAME SLAVE CONNECTION DIAGRAM
FIGURE 17-7: SPIx SLAVE, FRAME MASTER CONNECTION DIAGRAM
FIGURE 17-8: SPIx SLAVE, FRAME SLAVE CONNECTION DIAGRAM
EQUATION 17-1: RELATIONSHIP BETWEEN DEVICE AND SPIx CLOCK SPEED
SDOx
SDIx
dsPIC33CK256MP508
Serial Clock
SSx
SCKx
Frame Sync
Pulse
SDIx
SDOx
Processor 2
SSx
SCKx
SPIx Master, Frame Slave)
SDOx
SDIx
dsPIC33CK256MP508
Serial Clock
SSx
SCKx
Frame Sync
Pulse
SDIx
SDOx
Processor 2
SSx
SCKx
(SPIx Slave, Frame Master)
SDOx
SDIx
dsPIC33CK256MP508
Serial Clock
SSx
SCKx
Frame Sync
Pulse
SDIx
SDOx
Processor 2
SSx
SCKx
(SPIx Slave, Frame Slave)
Baud Rate = FPB
(2 * (SPIxBRG + 1))
Where:
FPB is the Peripheral Bus Clock Frequency.
2017-2018 Microchip Technology Inc. DS70005349E-page 395
dsPIC33CK256MP508 FAMILY
18.0 INTER-INTEGRATED CIRCUIT
(I2C)
The Inter-Integrated Circuit (I2C) module is a serial
interface useful for communicating with other periph-
eral or microcontroller devices. These peripheral
devices may be serial EEPROMs, display drivers, A/D
Converters, etc.
The I2C module supports these features:
• Independent Master and Slave Logic
• 7-Bit and 10-Bit Device Addresses
• General Call Address as Defined in the
I2C Protocol
• Clock Stretching to Provide Delays for the
Processor to Respond to a Slave Data Request
• Both 100 kHz and 400 kHz Bus Specifications
• Configurable Address Masking
• Multi-Master modes to Prevent Loss of Messages
in Arbitration
• Bus Repeater mode, Allowing the Acceptance of
All Messages as a Slave, regardless of the
Address
• Automatic SCL
• SMBus Compatible Voltage Thresholds
A block diagram of the module is shown in Figure 18-1.
18.1 Communicating as a Master in a
Single Master Environment
The details of sending a message in Master mode
depends on the communication protocol for the device
being communicated with. Typically, the sequence of
events is as follows:
1. Assert a Start condition on SDAx and SCLx.
2. Send the I2C device address byte to the Slave
with a write indication.
3. Wait for and verify an Acknowledge from the
Slave.
4. Send the first data byte (sometimes known as
the command) to the Slave.
5. Wait for and verify an Acknowledge from the
Slave.
6. Send the serial memory address low byte to the
Slave.
7. Repeat Steps 4 and 5 until all data bytes are
sent.
8. Assert a Repeated Start condition on SDAx and
SCLx.
9. Send the device address byte to the Slave with
a read indication.
10. Wait for and verify an Acknowledge from the
Slave.
11. Enable Master reception to receive serial
memory data.
12. Generate an ACK or NACK condition at the end
of a received byte of data.
13. Generate a Stop condition on SDAx and SCLx.
Note 1:
This data sheet summarizes the features of
the dsPIC33CK256MP508 family of devices.
It is not intended to be a comprehensive
reference source. For more information,
refer to “Inter-Integrated Circuit (I2C)”
(www.microchip.com/DS70000195) in the
“dsPIC33/PIC24 Family Reference
Manual”.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 396 2017-2018 Microchip Technology Inc.
FIGURE 18-1: I2Cx BLOCK DIAGRAM
I2CxRCV
Internal
Data Bus
SCLx
SDAx
Shift
Match Detect
Start and Stop
Bit Detect
Clock
Address Match
Clock
Stretching
I2CxTRN
LSB
Shift Clock
BRG Down Counter
Reload
Control
TCY/2
Start and Stop
Bit Generation
Acknowledge
Generation
Collision
Detect
I2CxCONL/H
I2CxSTAT
Control Logic
Read
LSB
Write
Read
I2CxBRG
I2CxRSR
Write
Read
Write
Read
Write
Read
Write
Read
Write
Read
I2CxMSK
I2CxADD
2017-2018 Microchip Technology Inc. DS70005349E-page 397
dsPIC33CK256MP508 FAMILY
18.2 Setting Baud Rate When
Operating as a Bus Master
To compute the Baud Rate Generator reload value, use
Equation 18-1.
EQUATION 18-1: COMPUTING BAUD RATE
RELOAD VALUE(1,2,3,4)
18.3 Slave Address Masking
The I2CxMSK register (Register 18-4) designates
address bit positions as “don’t care” for both 7-Bit and
10-Bit Addressing modes. Setting a particular bit
location (= 1) in the I2CxMSK register causes the Slave
module to respond, whether the corresponding address
bit value is a ‘0’ or a ‘1’. For example, when I2CxMSK is
set to ‘0010000000’, the Slave module will detect both
addresses, ‘0000000000’ and ‘0010000000’.
To enable address masking, the Intelligent Peripheral
Management Interface (IPMI) must be disabled by
clearing the STRICT bit (I2CxCONL<11>).
Note 1: Based on FCY = FOSC/2; Doze mode
and PLL are disabled.
2: These clock rate values are for guidance
only. The actual clock rate can be
affected by various system-level
parameters. The actual clock rate should
be measured in its intended application.
3: Typical value of delay varies from
110 ns to 150 ns.
4: I2CxBRG values of 0 to 3 are expressly
forbidden. The user should never
program the I2CxBRG with a value of
0x0, 0x1, 0x2 or 0x3 as indeterminate
results may occur.
I2CxBRG = ((1/FSCL – Delay) • FCY/2) – 2
Note: As a result of changes in the I2C protocol,
the addresses in Tabl e 1 8- 2 are reserved
and will not be Acknowledged in Slave
mode. This includes any address mask
settings that include any of these
addresses.
TABLE 18-1: I2Cx CLOCK RATES(1,2)
FCY FSCL
I2CxBRG Value
Decimal Hexadecimal
100 MHz 1 MHz 41 29
100 MHz 400 kHz 116 74
100 MHz 100 kHz 491 1EB
80 MHz 1 MHz 32 20
80 MHz 400 kHz 92 5C
80 MHz 100 kHz 392 188
60 MHz 1 MHz 24 18
60 MHz 400 kHz 69 45
60 MHz 100 kHz 294 126
40 MHz 1 MHz 15 0F
40 MHz 400 kHz 45 2D
40 MHz 100 kHz 195 C3
20 MHz 1 MHz 7 7
20 MHz 400 kHz 22 16
20 MHz 100 kHz 97 61
Note 1: Based on FCY = FOSC/2; Doze mode and PLL are disabled.
2: These clock rate values are for guidance only. The actual clock rate can be affected by various
system-level parameters. The actual clock rate should be measured in its intended application.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 398 2017-2018 Microchip Technology Inc.
TABLE 18-2: I2Cx RESERVED ADDRESSES(1)
18.4 SMBus Support
The dsPIC33CK256MP508 family devices have
support for SMBus through options in the input voltage
thresholds. There are two control bits to select one of
three options: SMEN (I2CxCONL<8>) and Configura-
tion bit, SMBEN (FDEVOPT<10>). Tab le 18-3 details
the setting of these control bits.
TABLE 18-3: I2C PIN VOLTAGE
THRESHOLD
Slave Address R/W Bit Description
0000 000 0 General Call Address(2)
0000 000 1 Start Byte
0000 001 x Cbus Address
0000 01x x Reserved
0000 1xx x HS Mode Master Code
1111 0xx x 10-Bit Slave Upper Byte(3)
1111 1xx x Reserved
Note 1: The address bits listed here will never cause an address match independent of address mask settings.
2: This address will be Acknowledged only if GCEN = 1.
3: A match on this address can only occur on the upper byte in 10-Bit Addressing mode.
SMEN SFR Bit
(I2CxCONL<8>)
SMBEN
Configuration Bit
(FDEVOPT<10>)
I2C (default) 0x
SMBus 2.0 10
SMBus 3.0 11
2017-2018 Microchip Technology Inc. DS70005349E-page 399
dsPIC33CK256MP508 FAMILY
18.5 Control Registers
REGISTER 18-1: I2CxCONL: I2Cx CONTROL REGISTER LOW
R/W-0 U-0 HC/R/W-0 R/W-1 R/W-0 R/W-0 R/W-0 R/W-0
I2CEN — I2CSIDL SCLREL(1)STRICT A10M DISSLW SMEN
bit 15 bit 8
R/W-0 R/W-0 R/W-0 HC/R/W-0 HC/R/W-0 HC/R/W-0 HC/R/W-0 HC/R/W-0
GCEN STREN ACKDT ACKEN RCEN PEN RSEN SEN
bit 7 bit 0
Legend: HC = Hardware Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 I2CEN: I2Cx Enable bit (writable from software only)
1 = Enables the I2Cx module, and configures the SDAx and SCLx pins as serial port pins
0 = Disables the I2Cx module; all I2C pins are controlled by port functions
bit 14 Unimplemented: Read as ‘0’
bit 13 I2CSIDL: I2Cx Stop in Idle Mode bit
1 = Discontinues module operation when device enters Idle mode
0 = Continues module operation in Idle mode
bit 12 SCLREL: SCLx Release Control bit (I2C Slave mode only)(1)
1 = Releases the SCLx clock
0 = Holds the SCLx clock low (clock stretch)
If STREN = 1:(2)
User software may write ‘0’ to initiate a clock stretch and write ‘1’ to release the clock. Hardware clears
at the beginning of every Slave data byte transmission. Hardware clears at the end of every Slave
address byte reception. Hardware clears at the end of every Slave data byte reception.
If STREN = 0:
User software may only write ‘1’ to release the clock. Hardware clears at the beginning of every Slave
data byte transmission. Hardware clears at the end of every Slave address byte reception.
bit 11 STRICT: I2Cx Strict Reserved Address Rule Enable bit
1 = Strict reserved addressing is enforced; for reserved addresses, refer to Tab l e 1 8- 2 .
(In Slave Mode) – The device doesn’t respond to reserved address space and addresses falling in
that category are NACKed.
(In Master Mode) – The device is allowed to generate addresses with reserved address space.
0 = Reserved addressing would be Acknowledged.
(In Slave Mode) – The device will respond to an address falling in the reserved address space.
When there is a match with any of the reserved addresses, the device will generate an ACK.
(In Master Mode) – Reserved.
bit 10 A10M: 10-Bit Slave Address Flag bit
1 = I2CxADD is a 10-bit Slave address
0 = I2CxADD is a 7-bit Slave address
bit 9 DISSLW: Slew Rate Control Disable bit
1 = Slew rate control is disabled for Standard Speed mode (100 kHz, also disabled for 1 MHz mode)
0 = Slew rate control is enabled for High-Speed mode (400 kHz)
Note 1: Automatically cleared to ‘0’ at the beginning of Slave transmission; automatically cleared to ‘0’ at the end
of Slave reception.
2: Automatically cleared to ‘0’ at the beginning of Slave transmission.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 400 2017-2018 Microchip Technology Inc.
bit 8 SMEN: SMBus Input Levels Enable bit
1 = Enables input logic so thresholds are compliant with the SMBus specification
0 = Disables SMBus-specific inputs
bit 7 GCEN: General Call Enable bit (I2C Slave mode only)
1 = Enables interrupt when a general call address is received in I2CxRSR; module is enabled for reception
0 = General call address is disabled.
bit 6 STREN: SCLx Clock Stretch Enable bit
In I2C Slave mode only; used in conjunction with the SCLREL bit.
1 = Enables clock stretching
0 = Disables clock stretching
bit 5 ACKDT: Acknowledge Data bit
In I2C Master mode during Master Receive mode. The value that will be transmitted when the user
initiates an Acknowledge sequence at the end of a receive.
In I2C Slave mode when AHEN = 1 or DHEN = 1. The value that the Slave will transmit when it initiates
an Acknowledge sequence at the end of an address or data reception.
1 = NACK is sent
0 = ACK is sent
bit 4 ACKEN: Acknowledge Sequence Enable bit
In I2C Master mode only; applicable during Master Receive mode.
1 = Initiates Acknowledge sequence on SDAx and SCLx pins, and transmits ACKDT data bit
0 = Acknowledge sequence is Idle
bit 3 RCEN: Receive Enable bit (I2C Master mode only)
1 = Enables Receive mode for I2C; automatically cleared by hardware at end of 8-bit receive data byte
0 = Receive sequence is not in progress
bit 2 PEN: Stop Condition Enable bit (I2C Master mode only)
1 = Initiates Stop condition on SDAx and SCLx pins
0 = Stop condition is Idle
bit 1 RSEN: Restart Condition Enable bit (I2C Master mode only)
1 = Initiates Restart condition on SDAx and SCLx pins
0 = Restart condition is Idle
bit 0 SEN: Start Condition Enable bit (I2C Master mode only)
1 = Initiates Start condition on SDAx and SCLx pins
0 = Start condition is Idle
REGISTER 18-1: I2CxCONL: I2Cx CONTROL REGISTER LOW (CONTINUED)
Note 1: Automatically cleared to ‘0’ at the beginning of Slave transmission; automatically cleared to ‘0’ at the end
of Slave reception.
2: Automatically cleared to ‘0’ at the beginning of Slave transmission.
2017-2018 Microchip Technology Inc. DS70005349E-page 401
dsPIC33CK256MP508 FAMILY
REGISTER 18-2: I2CxCONH: I2Cx CONTROL REGISTER HIGH
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— PCIE SCIE BOEN SDAHT SBCDE AHEN DHEN
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-7 Unimplemented: Read as ‘0’
bit 6 PCIE: Stop Condition Interrupt Enable bit (I2C Slave mode only).
1 = Enables interrupt on detection of Stop condition
0 = Stop detection interrupts are disabled
bit 5 SCIE: Start Condition Interrupt Enable bit (I2C Slave mode only)
1 = Enables interrupt on detection of Start or Restart conditions
0 = Start detection interrupts are disabled
bit 4 BOEN: Buffer Overwrite Enable bit (I2C Slave mode only)
1 = I2CxRCV is updated and an ACK is generated for a received address/data byte, ignoring the state
of the I2COV bit only if RBF bit = 0
0 = I2CxRCV is only updated when I2COV is clear
bit 3 SDAHT: SDAx Hold Time Selection bit
1 = Minimum of 300 ns hold time on SDAx after the falling edge of SCLx
0 = Minimum of 100 ns hold time on SDAx after the falling edge of SCLx
bit 2 SBCDE: Slave Mode Bus Collision Detect Enable bit (I2C Slave mode only)
If, on the rising edge of SCLx, SDAx is sampled low when the module is outputting a high state, the
BCL bit is set and the bus goes Idle. This Detection mode is only valid during data and ACK transmit
sequences.
1 = Enables Slave bus collision interrupts
0 = Slave bus collision interrupts are disabled
bit 1 AHEN: Address Hold Enable bit (I2C Slave mode only)
1 = Following the 8th falling edge of SCLx for a matching received address byte; SCLREL bit
(I2CxCONL<12>) will be cleared and the SCLx will be held low
0 = Address holding is disabled
bit 0 DHEN: Data Hold Enable bit (I2C Slave mode only)
1 = Following the 8th falling edge of SCLx for a received data byte; Slave hardware clears the SCLREL
bit (I2CxCONL<12>) and SCLx is held low
0 = Data holding is disabled
dsPIC33CK256MP508 FAMILY
DS70005349E-page 402 2017-2018 Microchip Technology Inc.
REGISTER 18-3: I2CxSTAT: I2Cx STATUS REGISTER
HSC/R-0 HSC/R-0 HSC/R-0 U-0 U-0 HSC/R/C-0 HSC/R-0 HSC/R-0
ACKSTAT TRSTAT ACKTIM —— BCL GCSTAT ADD10
bit 15 bit 8
HS/R/C-0 HS/R/C-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0
IWCOL I2COV D/A PSR/WRBF TBF
bit 7 bit 0
Legend: C = Clearable bit HSC = Hardware Settable/Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared HS = Hardware Settable bit
bit 15 ACKSTAT: Acknowledge Status bit (updated in all Master and Slave modes)
1 = Acknowledge was not received from Slave
0 = Acknowledge was received from Slave
bit 14 TRSTAT: Transmit Status bit (when operating as I2C Master; applicable to Master transmit operation)
1 = Master transmit is in progress (8 bits + ACK)
0 = Master transmit is not in progress
bit 13 ACKTIM: Acknowledge Time Status bit (valid in I2C Slave mode only)
1 = Indicates I2C bus is in an Acknowledge sequence, set on 8th falling edge of SCLx clock
0 = Not an Acknowledge sequence, cleared on 9th rising edge of SCLx clock
bit 12-11 Unimplemented: Read as ‘0’
bit 10 BCL: Bus Collision Detect bit (Master/Slave mode; cleared when I2C module is disabled, I2CEN = 0)
1 = A bus collision has been detected during a Master or Slave transmit operation
0 = No bus collision has been detected
bit 9 GCSTAT: General Call Status bit (cleared after Stop detection)
1 = General call address was received
0 = General call address was not received
bit 8 ADD10: 10-Bit Address Status bit (cleared after Stop detection)
1 = 10-bit address was matched
0 = 10-bit address was not matched
bit 7 IWCOL: I2Cx Write Collision Detect bit
1 = An attempt to write to the I2CxTRN register failed because the I2C module is busy; must be cleared
in software
0 = No collision
bit 6 I2COV: I2Cx Receive Overflow Flag bit
1 = A byte was received while the I2CxRCV register is still holding the previous byte; I2COV is a “don’t
care” in Transmit mode, must be cleared in software
0 = No overflow
bit 5 D/A: Data/Address bit (when operating as I2C Slave)
1 = Indicates that the last byte received was data
0 = Indicates that the last byte received or transmitted was an address
bit 4 P: I2Cx Stop bit
Updated when Start, Reset or Stop is detected; cleared when the I2C module is disabled, I2CEN = 0.
1 = Indicates that a Stop bit has been detected last
0 = Stop bit was not detected last
2017-2018 Microchip Technology Inc. DS70005349E-page 403
dsPIC33CK256MP508 FAMILY
bit 3 S: I2Cx Start bit
Updated when Start, Reset or Stop is detected; cleared when the I2C module is disabled, I2CEN = 0.
1 = Indicates that a Start (or Repeated Start) bit has been detected last
0 = Start bit was not detected last
bit 2 R/W: Read/Write Information bit (when operating as I2C Slave)
1 = Read: Indicates the data transfer is output from the Slave
0 = Write: Indicates the data transfer is input to the Slave
bit 1 RBF: Receive Buffer Full Status bit
1 = Receive is complete, I2CxRCV is full
0 = Receive is not complete, I2CxRCV is empty
bit 0 TBF: Transmit Buffer Full Status bit
1 = Transmit is in progress, I2CxTRN is full (8-bits of data)
0 = Transmit is complete, I2CxTRN is empty
REGISTER 18-3: I2CxSTAT: I2Cx STATUS REGISTER (CONTINUED)
REGISTER 18-4: I2CxMSK: I2Cx SLAVE MODE ADDRESS MASK REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — —MSK<9:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
MSK<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9-0 MSK<9:0>: I2Cx Mask for Address Bit x Select bits
1 = Enables masking for bit x of the incoming message address; bit match is not required in this position
0 = Disables masking for bit x; bit match is required in this position
dsPIC33CK256MP508 FAMILY
DS70005349E-page 404 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 405
dsPIC33CK256MP508 FAMILY
19.0 PARALLEL MASTER PORT
(PMP)
The Parallel Master Port (PMP) is a parallel 8-bit/16-bit
I/O module specifically designed to communicate with
a wide variety of parallel devices, such as communica-
tion peripherals, LCDs, external memory devices and
microcontrollers. Because the interfaces to parallel
peripherals vary significantly, the PMP module is
highly configurable. The key features of the PMP
module include:
• Master and Slave Operating modes
• Up to 16 Programmable Address Lines
• Up to Two Chip Select Lines
• Programmable Strobe Options:
- Individual read and write strobes or
read/write strobe with enable strobe
• Address Auto-Increment/Auto-Decrement
• Programmable Address/Data Multiplexing
• Programmable Polarity on Control Signals
• Legacy Parallel Slave Port Support
• Enhanced Parallel Slave Support:
- Address support
- 4 bytes deep, auto-incrementing buffer
• Schmitt Trigger or TTL Input Buffers
• Programmable Wait States
• Dual Buffer Mode with Separate Read and Write
Registers
• Read Initiate Control
FIGURE 19-1: PMP MODULE PINOUT AND CONNECTIONS TO EXTERNAL DEVICES
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a compre-
hensive reference source. To complement
the information in this data sheet, refer
to “Parallel Master Port (PMP)”
(www.microchip.com/DS70005344) in the
“dsPIC33/PIC24 Family Reference
Manual”.
2: Not all device variants include the PMP.
Refer to Tab l e 1 and Ta b l e 2 for availability.
PMA0
PMA14
PMA15
PMRD
PMRD/PMWR
PMCS1
PMA1
PMA<13:2>
PMALL
PMALH
PMCS2
EEPROM
Address Bus
Data Bus
Control Lines
LCD FIFO
Microcontroller
8-Bit/16-Bit Data (with or without multiplexed addressing)
Up to 16-Bit Address
Buffer
PMD<15:8>
PMA<7:0>
PMA<15:8>
PMD<7:0>
Parallel Master Port
PMWR
PMENB
dsPIC33CK256MP508 FAMILY
DS70005349E-page 406 2017-2018 Microchip Technology Inc.
19.1 Parallel Master Port Control Registers
REGISTER 19-1: PMCON: PARALLEL MASTER PORT CONTROL REGISTER
R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ON — SIDL ADRMUX1 ADRMUX0 PMPTTL PTWREN PTRDEN
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0
CSF1(1)CSF0(1)ALP(1)CS2P(1)CS1P(1)— WRSP RDSP
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ON: Parallel Master Port Enable bit
1 = PMP is enabled
0 = PMP is disabled, no off-chip access performed
bit 14 Unimplemented: Read as ‘0’
bit 13 SIDL: PMP Stop in Idle Mode bit
1 = Discontinues module operation when device enters Idle mode
0 = Continues module operation in Idle mode
bit 12-11 ADRMUX<1:0>: Address/Data Multiplexing Selection bits
11 = All 16 bits of address are multiplexed with the 16 bits of data (PMPA<15:0>/PMPD<15:0>) using
two phases
10 = All 16 bits of address are multiplexed with the lower 8 bits of data (PMPA<15:8>/PMPA<7:0>/
PMPD<7:0>) using three phases
01 = Lower 8 bits of address are multiplexed with lower 8 bits of data (PMPA<7:0>/PMPD<7:0>)
00 = Address and data appear on separate pins
bit 10 PMPTTL: PMP Module TTL Input Buffer Select bit
1 = PMP module uses TTL input buffers
0 = PMP module uses Schmitt Trigger input buffers
bit 9 PTWREN: PMP Write Enable Strobe Port Enable bit
1 = PMWR/PMENB port is enabled
0 = PMWR/PMENB port is disabled
bit 8 PTRDEN: PMP Read/Write Strobe Port Enable bit
1 = PMRD/PMWR port is enabled
0 = PMRD/PMWR port is disabled
bit 7-6 CSF<1:0>: Chip Select Function bits(1)
11 = Reserved
10 = PMCS2 and PMCS1 function as Chip Select
01 = PMCS2 functions as Chip Select, PMCS1 functions as address bit
00 = PMCS2 and PMCS1 function as address bits
bit 5 ALP: Address Latch Polarity bit(1)
1 = Active-high (PMALL and PMALH)
0 = Active-low (PMALL and PMALH)
bit 4 CS2P: Chip Select 2 Polarity bit(1)
1 = Active-high
0 = Active-low
Note 1: These bits have no effect when their corresponding pins are used as address lines.
2017-2018 Microchip Technology Inc. DS70005349E-page 407
dsPIC33CK256MP508 FAMILY
bit 3 CS1P: Chip Select 1 Polarity bit(1)
1 = Active-high
0 = Active-low
bit 2 Unimplemented: Read as ‘0’
bit 1 WRSP: Write Strobe Polarity bit
For Slave Modes and Master Mode 2 (MODE<1:0> (PMMODE<9:8>) = 00, 01, 10):
1= Write strobe is active-high (PMWR)
0= Write strobe is active-low (PMWR)
For Master Mode 1 (MODE<1:0> (PMMODE<9:8>) = 11):
1= Enables strobe active-high (PMENB)
0= Enables strobe active-low (PMENB)
bit 0 RDSP: Read Strobe Polarity bit
For Slave Modes and Master Mode 2 (MODE<1:0> (PMMODE<9:8>) = 00, 01, 10):
1= Read strobe is active-high (PMRD)
0= Read strobe is active-low (PMRD)
For Master Mode 1 (MODE<1:0> (PMMODE<9:8>) = 11):
1= Read/write strobe is active-high (PMRD/PMWR)
0= Read/write strobe is active-low (PMRD/PMWR)
REGISTER 19-1: PMCON: PARALLEL MASTER PORT CONTROL REGISTER (CONTINUED)
Note 1: These bits have no effect when their corresponding pins are used as address lines.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 408 2017-2018 Microchip Technology Inc.
REGISTER 19-2: PMCONH: PARALLEL MASTER PORT CONTROL HIGH REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W/HC-0 U-0 U-0 U-0 U-0 U-0 R/W-0 U-0
RDSTART(1)— — — — — DUALBUF —
bit 7 bit 0
Legend: HC = Hardware Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7 RDSTART: Start a Read on PMP Bus bit(1)
1 = Starts a read cycle on the PMP bus
0 = No effect
bit 6-2 Unimplemented: Read as ‘0’
bit 1 DUALBUF: PMP Dual Read/Write Buffers Enable bit (valid in Master mode only)
1 = PMP uses separate registers for reads and writes (PMRADDR, PMDINx, PMWADDR, PMDOUTx)
0 = PMP uses legacy registers (PMADDR, PMDINx)
bit 0 Unimplemented: Read as ‘0’
Note 1: This bit is cleared by HW at the end of the read cycle when BUSY (PMMODE<15>) = 0.
2017-2018 Microchip Technology Inc. DS70005349E-page 409
dsPIC33CK256MP508 FAMILY
REGISTER 19-3: PMMODE: PARALLEL MASTER PORT MODE REGISTER
R/HS/HC-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
BUSY IRQM1 IRQM0 INCM1 INCM0 MODE16 MODE1 MODE0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
WAITB1(1)WAITB0(1)WAITM3(1)WAITM2(1)WAITM1(1)WAITM0(1)WAITE1(1)WAITE0(1)
bit 7 bit 0
Legend: HC = Hardware Clearable bit HS = Hardware Settable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 BUSY: Busy bit (Master mode only)
1 = Port is busy
0 = Port is not busy
bit 14-13 IRQM<1:0>: Interrupt Request Mode bits
11 = Reserved, do not use
10 = Interrupt generated when Read Buffer 3 is read or Write Buffer 3 is written (Buffered PSP mode),
or on a read or write operation when PMA<1:0> = 11 (Addressable Slave mode only)
01 = Interrupt generated at the end of the read/write cycle
00 = No Interrupt generated
bit 12-11 INCM<1:0>: Increment Mode bits
11 = Slave mode read and write buffers auto-increment (MODE<1:0> (PMMODE<9:8>) = 00 only)
10 = Decrements ADDR<15:0> by 1 every read/write cycle(2,4)
01 = Increments ADDR<15:0> by 1 every read/write cycle(2,4)
00 = No increment or decrement of address
bit 10 MODE16: 8/16-Bit Mode bit
1 = 16-Bit Mode: A read or write to the Data register invokes a single 16-bit transfer
0 = 8-Bit Mode: A read or write to the Data register invokes a single 8-bit transfer
bit 9-8 MODE<1:0>: PMP Mode Select bits
11 = Master Mode 1 (PMCSx, PMRD/PMWR, PMENB, PMA<x:0>, PMD<7:0> and PMD<8:15>(3))
10 = Master Mode 2 (PMCSx, PMRD, PMWR, PMA<x:0>, PMD<7:0> and PMD<8:15>(3))
01 = Enhanced Slave mode, controls signals (PMRD, PMWR, PMCS, PMD<7:0> and PMA<1:0>)
00 = Legacy Parallel Slave Port, controls signals (PMRD, PMWR, PMCS and PMD<7:0>)
bit 7-6 WAITB<1:0>: Data Setup to Read/Write Strobe Wait States bits(1)
11 = Data Wait of 4 TP; multiplexed address phase of 4 TP
10 = Data Wait of 3 TP; multiplexed address phase of 3 TP
01 = Data Wait of 2 TP; multiplexed address phase of 2 TP
00 = Data Wait of 1 TP; multiplexed address phase of 1 TP (default)
Note 1: When WAITM<3:0> = 0000, the WAITBx and WAITEx bits are ignored and forced to 1 TP (peripheral
clock) cycle for a write operation; WAITBx = 1 TP cycle, WAITEx = 0 TP cycles for a read operation.
2: Address bits, A15 and A14, are not subject to auto-increment/decrement if configured as Chip Select, CS2
and CS1.
3: These pins are active when MODE16 = 1 (16-bit mode).
4: The PMADDR register is always incremented/decremented by 1 regardless of the transfer data width.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 410 2017-2018 Microchip Technology Inc.
bit 5-2 WAITM<3:0>: Data Read/Write Strobe Wait States bits(1)
1111 = Wait of 16 TP
•
•
•
0001 = Wait of 2 TP
0000 = Wait of 1 TP (default)
bit 1-0 WAITE<1:0>: Data Hold After Read/Write Strobe Wait States bits(1)
11 = Wait of 4 TP
10 = Wait of 3 TP
01 = Wait of 2 TP
00 = Wait of 1 TP (default)
For Read Operations:
11 = Wait of 3 TP
10 = Wait of 2 TP
01 = Wait of 1 TP
00 = Wait of 0 TP (default)
REGISTER 19-3: PMMODE: PARALLEL MASTER PORT MODE REGISTER (CONTINUED)
Note 1: When WAITM<3:0> = 0000, the WAITBx and WAITEx bits are ignored and forced to 1 TP (peripheral
clock) cycle for a write operation; WAITBx = 1 TP cycle, WAITEx = 0 TP cycles for a read operation.
2: Address bits, A15 and A14, are not subject to auto-increment/decrement if configured as Chip Select, CS2
and CS1.
3: These pins are active when MODE16 = 1 (16-bit mode).
4: The PMADDR register is always incremented/decremented by 1 regardless of the transfer data width.
2017-2018 Microchip Technology Inc. DS70005349E-page 411
dsPIC33CK256MP508 FAMILY
REGISTER 19-4: PMADDR: PARALLEL MASTER PORT ADDRESS REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CS2(1)CS1(1)
ADDR<13:8>
ADDR15(1)ADDR14(1)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ADDR<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 CS2: Chip Select 2 bit(1)
1 = Chip Select 2 is active
0 = Chip Select 2 is inactive (ADDR15 function is selected)
bit 15 ADDR15: Target Address bit 15(1)
bit 14 CS1: Chip Select 1 bit(1)
1 = Chip Select 1 is active
0 = Chip Select 1 is inactive (ADDR14 function is selected)
bit 14 ADDR14: Target Address bit 14(1)
bit 13-0 ADDR<13:0>: Target Address bits
Note 1: The use of these pins as PMA15/PMA14 or CS2/CS1 is selected by the CSF<1:0> bits (PMCON<7:6>).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 412 2017-2018 Microchip Technology Inc.
REGISTER 19-5: PMDOUT1: PARALLEL MASTER PORT DATA OUTPUT LOW REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DATAOUT<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DATAOUT<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 DATAOUT<15:0>: Output Data Port bits
These bits are for 8-bit read operations in Slave mode and write operations for Dual Buffer Master mode.
REGISTER 19-6: PMDOUT2: PARALLEL MASTER PORT DATA OUTPUT HIGH REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DATAOUT<31:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DATAOUT<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 DATAOUT<31:16>: Output Data Port bits
These bits are for 8-bit write operations in Slave mode.
2017-2018 Microchip Technology Inc. DS70005349E-page 413
dsPIC33CK256MP508 FAMILY
REGISTER 19-7: PMDIN1: PARALLEL MASTER PORT DATA INPUT/OUTPUT LOW REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DATAIN<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DATAIN<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 DATAIN<15:0>: Input/Output Data Port bits
These bits are for 8-bit or 16-bit read/write operations in Master mode and are the input data port for
8-bit write operations in Slave mode.
REGISTER 19-8: PMDIN2: PARALLEL MASTER PORT DATA INPUT/OUTPUT HIGH REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DATAIN<31:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DATAIN<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 DATAIN<31:16>: Input/Output Data Port bits
These bits are for 8-bit write operations in Slave mode.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 414 2017-2018 Microchip Technology Inc.
REGISTER 19-9: PMAEN: PARALLEL MASTER PORT PIN ENABLE REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTEN<15:14> PTEN<13:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTEN<7:2> PTEN<1:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 PTEN<15:14>: PMCSx Strobe Enable bits
1 = PMA15 and PMA14 function as either PMA<15:14> or PMCS2 and PMCS1(1)
0 = PMA15 and PMA14 function as port I/Os
bit 13-2 PTEN<13:2>: PMP Address Port Enable bits
1 = PMA<13:2> function as PMP address lines
0 = PMA<13:2> function as port I/Os
bit 1-0 PTEN<1:0>: PMALH/PMALL Strobe Enable bits
1 = PMA1 and PMA0 function as either PMA<1:0> or PMALH and PMALL(2)
0 = PMA1 and PMA0 pads function as port I/Os
Note 1: The use of these pins as address or Chip Select lines is selected by the CSF<1:0> bits (PMCON<7:6>).
2: The use of these pins as PMA1/PMA0 or PMALH/PMALL depends on the Address/Data Multiplex mode
selected by the ADRMUX<1:0> bits in the PMCON register.
2017-2018 Microchip Technology Inc. DS70005349E-page 415
dsPIC33CK256MP508 FAMILY
REGISTER 19-10: PMSTAT: PARALLEL MASTER PORT STATUS REGISTER
(SLAVE MODES ONLY)
R-0 R/W-0 U-0 U-0 R-0 R-0 R-0 R-0
IBF IBOV —— IB3F IB2F IB1F IB0F
bit 15 bit 8
R-1 R/W-0 U-0 U-0 R-1 R-1 R-1 R-1
OBE OBUF —— OB3E OB2E OB1E OB0E
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 IBF: Input Buffer Full Status bit
1 = All writable Input Buffer registers are full
0 = Some or all of the writable Input Buffer registers are empty
bit 14 IBOV: Input Buffer Overflow Status bit
1 = A write attempt to a full input byte buffer occurred (must be cleared in software)
0 = No overflow occurred
This bit is set (= 1) in hardware; it can only be cleared (= 0) in software.
bit 13-12 Unimplemented: Read as ‘0’
bit 11-8 IB<3:0>F: Input Buffer x Status Full bits
1 = Input buffer contains data that has not been read (reading buffer will clear this bit)
0 = Input buffer does not contain any unread data
bit 7 OBE: Output Buffer Empty Status bit
1 = All readable Output Buffer registers are empty
0 = Some or all of the readable Output Buffer registers are full
bit 6 OBUF: Output Buffer Underflow Status bit
1 = A read occurred from an empty output byte buffer (must be cleared in software)
0 = No underflow occurred
This bit is set (= 1) in hardware; it can only be cleared (= 0) in software.
bit 5-4 Unimplemented: Read as ‘0’
bit 3-0 OB<3:0>E: Output Buffer x Status Empty bits
1 = Output buffer is empty (writing data to the buffer will clear this bit)
0 = Output buffer contains data that has not been transmitted
dsPIC33CK256MP508 FAMILY
DS70005349E-page 416 2017-2018 Microchip Technology Inc.
REGISTER 19-11: PMWADDR: PARALLEL MASTER PORT WRITE ADDRESS REGISTER(2)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
WCS2(1)WCS1(1)
WADDR<13:8>
WADDR15(1)WADDR14(1)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
WADDR<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 WCS2: Chip Select 2 bit(1)
1 = Chip Select 2 is active
0 = Chip Select 2 is inactive (WADDR15 function is selected)
bit 15 WADDR15: Target Write Address bit 15(1)
bit 14 WCS1: Chip Select 1 bit(1)
1 = Chip Select 1 is active
0 = Chip Select 1 is inactive (WADDR14 function is selected)
bit 14 WADDR14: Target Write Address bit 14(1)
bit 13-0 WADDR<13:0>: Target Write Address bits
Note 1: The use of these pins as PMA15/PMA14 or WCS2/WCS1 is selected by the CSF<1:0> bits
(PMCON<7:6>).
2: This register is only used when the DUALBUF bit (PMCONH<1>) is set to ‘1’.
2017-2018 Microchip Technology Inc. DS70005349E-page 417
dsPIC33CK256MP508 FAMILY
REGISTER 19-12: PMRADDR: PARALLEL MASTER PORT READ ADDRESS REGISTER(2)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
RCS2(1)RCS1(1)
RADDR<13:8>
RADDR15(1)RADDR14(1)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
RADDR<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 RCS2: Chip Select 2 bit(1)
1 = Chip Select 2 is active
0 = Chip Select 2 is inactive (RADDR15 function is selected)
bit 15 RADDR15: Target Read Address bit 15(1)
bit 14 RCS1: Chip Select 1 bit(1)
1 = Chip Select 1 is active
0 = Chip Select 1 is inactive (RADDR14 function is selected)
bit 14 RADDR14: Target Read Address bit 14(1)
bit 13-0 RADDR<13:0>: Target Read Address bits
Note 1: The use of these pins as PMA15/PMA14 or RCS2/RCS1 is selected by the CSF<1:0> bits
(PMCON<7:6>).
2: This register is only used when the DUALBUF bit (PMCONH<1>) is set to ‘1’.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 418 2017-2018 Microchip Technology Inc.
REGISTER 19-13: PMRDIN: PARALLEL MASTER PORT READ INPUT DATA REGISTER(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
RDATAIN<15:8>(2)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
RDATAIN<7:0>(2)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 RDATAIN<15:0>: Port Read Input Data bits(2)
Note 1: This register is only used when the DUALBUF bit (PMCONH<1>) is set to ‘1’ and exclusively for reads. If
the DUALBUF bit is ‘0’, the PMDIN1 register (Register 19-7) is used for reads instead of PMRDIN.
2: Only used when MODE16 = 1.
2017-2018 Microchip Technology Inc. DS70005349E-page 419
dsPIC33CK256MP508 FAMILY
20.0 SINGLE-EDGE NIBBLE
TRANSMISSION (SENT)
The Single-Edge Nibble Transmission (SENT) module is
based on the SAE J2716, “SENT – Single-Edge Nibble
Transmission for Automotive Applications”. The SENT
protocol is a one-way, single wire time modulated serial
communication, based on successive falling edges. It is
intended for use in applications where high-resolution
sensor data needs to be communicated from a sensor to
an Engine Control Unit (ECU).
The SENTx module has the following major features:
• Selectable Transmit or Receive mode
• Synchronous or Asynchronous Transmit modes
• Automatic Data Rate Synchronization
• Optional Automatic Detection of CRC Errors in
Receive mode
• Optional Hardware Calculation of CRC in
Transmit mode
• Support for Optional Pause Pulse Period
• Data Buffering for One Message Frame
• Selectable Data Length for Transmit/Receive from
Three to Six Nibbles
• Automatic Detection of Framing Errors
SENT protocol timing is based on a predetermined time
unit, TTICK. Both the transmitter and receiver must be
preconfigured for TTICK, which can vary from 3 to 90 µs.
A SENT message frame starts with a Sync pulse. The
purpose of the Sync pulse is to allow the receiver to
calculate the data rate of the message encoded by the
transmitter. The SENT specification allows messages
to be validated with up to a 20% variation in TTICK. This
allows for the transmitter and receiver to run from differ-
ent clocks that may be inaccurate, and drift with time
and temperature. The data nibbles are 4 bits in length
and are encoded as the data value + 12 ticks. This
yields a 0 value of 12 ticks and the maximum value,
0xF, of 27 ticks.
A SENT message consists of the following:
• A synchronization/calibration period of 56 tick
times
• A status nibble of 12-27 tick times
• Up to six data nibbles of 12-27 tick times
• A CRC nibble of 12-27 tick times
• An optional pause pulse period of 12-768 tick
times
Figure 20-1 shows a block diagram of the SENTx
module.
Figure 20-2 shows the construction of a typical 6-nibble
data frame, with the numbers representing the minimum
or maximum number of tick times for each section.
Note 1: This data sheet summarizes the features
of this group of dsPIC33CK256MP508
family devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to “Single-Edge Nibble
Transmission (SENT) Module”
(www.microchip.com/DS70005145) in the
“dsPIC33/PIC24 Family Reference
Manual”.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 420 2017-2018 Microchip Technology Inc.
FIGURE 20-1: SENTx MODULE BLOCK DIAGRAM
FIGURE 20-2: SENTx PROTOCOL DATA FRAMES
SENTxCON3
SENTxCON2 SENTxSYNC
Sync Period
Nibble Period
Detector
SENTxDATH/L
Control and
Error Detection
SENTxSTATSENTxCON1
SENTx TX
Edge
Detect Detector
Edge
Timing
Output
Driver
Transmitter OnlyReceiver Only SharedLegend:
SENTx RX
Tick Period
Generator
SENTx Edge
Control
Sync Period Status Data 1 Data 2 Data 3 Data 4 Data 5 Data 6 CRC Pause (optional)
56 12-27 12-2712-2712-2712-2712-2712-27 12-27 12-768
2017-2018 Microchip Technology Inc. DS70005349E-page 421
dsPIC33CK256MP508 FAMILY
20.1 Transmit Mode
By default, the SENTx module is configured for transmit
operation. The module can be configured for continuous
asynchronous message frame transmission, or alterna-
tively, for Synchronous mode triggered by software.
When enabled, the transmitter will send a Sync, followed
by the appropriate number of data nibbles, an optional
CRC and optional pause pulse. The tick period used by
the SENTx transmitter is set by writing a value to the
TICKTIME<15:0> (SENTxCON2<15:0>) bits. The tick
period calculations are shown in Equation 20-1.
EQUATION 20-1: TICK PERIOD
CALCULATION
An optional pause pulse can be used in Asynchronous
mode to provide a fixed message frame time period.
The frame period used by the SENTx transmitter is set
by writing a value to the FRAMETIME<15:0>
(SENTxCON3<15:0>) bits. The formulas used to
calculate the value of frame time are shown in
Equation 20-2.
EQUATION 20-2: FRAME TIME
CALCULATIONS
20.1.1 TRANSMIT MODE
CONFIGURATION
20.1.1.1 Initializing the SENTx Module
Perform the following steps to initialize the module:
1. Write RCVEN (SENTxCON1<11>) = 0 for
Transmit mode.
2. Write TXM (SENTxCON1<10>) = 0 for
Asynchronous Transmit mode or TXM = 1 for
Synchronous mode.
3. Write NIBCNT<2:0> (SENTxCON1<2:0>) for
the desired data frame length.
4. Write CRCEN (SENTxCON1<8>) for hardware
or software CRC calculation.
5. Write PPP (SENTxCON1<7>) for optional
pause pulse.
6. If PPP = 1, write TFRAME to SENTxCON3.
7. Write SENTxCON2 with the appropriate value
for the desired tick period.
8. Enable interrupts and set interrupt priority.
9. Write initial status and data values to
SENTxDATH/L.
10. If CRCEN = 0, calculate CRC and write the
value to CRC<3:0> (SENTxDATL<3:0>).
11. Set the SNTEN (SENTxCON1<15>) bit to
enable the module.
User software updates to SENTxDATH/L must be
performed after the completion of the CRC and before
the next message frame’s status nibble. The recom-
mended method is to use the message frame
completion interrupt to trigger data writes.
Note: The module will not produce a pause
period with less than 12 ticks, regard-
less of the FRAMETIME<15:0> value.
FRAMETIME<15:0> values beyond 2047
will have no effect on the length of a data
frame.
TTICK
TCLK
TICKTIME<15:0> =– 1
Where:
TFRAME = Total time of the message from ms
N = The number of data nibbles in message, 1-6
FRAMETIME<15:0> = TTICK/TFRAME
FRAMETIME<15:0> 122 + 27N
FRAMETIME<15:0> 848 + 12N
dsPIC33CK256MP508 FAMILY
DS70005349E-page 422 2017-2018 Microchip Technology Inc.
20.2 Receive Mode
The module can be configured for receive operation
by setting the RCVEN (SENTxCON1<11>) bit. The
time between each falling edge is compared
to SYNCMIN<15:0> (SENTxCON3<15:0>) and
SYNCMAX<15:0> (SENTxCON2<15:0>), and if the
measured time lies between the minimum and maximum
limits, the module begins to receive data. The validated
Sync time is captured in the SENTxSYNC register and
the tick time is calculated. Subsequent falling edges are
verified to be within the valid data width and the data is
stored in the SENTxDATL/H registers. An interrupt event
is generated at the completion of the message and the
user software should read the SENTx Data registers
before the reception of the next nibble. The equation for
SYNCMIN<15:0> and SYNCMAX<15:0> is shown in
Equation 20-3.
EQUATION 20-3: SYNCMIN<15:0> AND
SYNCMAX<15:0>
CALCULATIONS
For TTICK = 3.0 s and FCLK = 4 MHz,
SYNCMIN<15:0> = 76.
20.2.1 RECEIVE MODE CONFIGURATION
20.2.1.1 Initializing the SENTx Module
Perform the following steps to initialize the module:
1. Write RCVEN (SENTxCON1<11>) = 1 for
Receive mode.
2. Write NIBCNT<2:0> (SENTxCON1<2:0>) for
the desired data frame length.
3. Write CRCEN (SENTxCON1<8>) for hardware
or software CRC validation.
4. Write PPP (SENTxCON1<7>) = 1 if pause pulse
is present.
5. Write SENTxCON2 with the value of SYNCMAXx
(Nominal Sync Period + 20%).
6. Write SENTxCON3 with the value of SYNCMINx
(Nominal Sync Period – 20%).
7. Enable interrupts and set interrupt priority.
8. Set the SNTEN (SENTxCON1<15>) bit to
enable the module.
The data should be read from the SENTxDATL/H
registers after the completion of the CRC and before the
next message frame’s status nibble. The recommended
method is to use the message frame completion
interrupt trigger.
Note: To ensure a Sync period can be identified,
the value written to SYNCMIN<15:0>
must be less than the value written to
SYNCMAX<15:0>.
Where:
TFRAME = Total time of the message from ms
N = The number of data nibbles in message, 1-6
FRCV = FCY x Prescaler
TCLK = FCY/Prescaler
FRAMETIME<15:0> 848 + 12N
TTICK = TCLK • (TICKTIME<15:0> + 1)
FRAMETIME<15:0> = TTICK/TFRAME
SyncCount = 8 x FRCV x TTICK
SYNCMIN<15:0> = 0.8 x SyncCount
SYNCMAX<15:0> = 1.2 x SyncCount
FRAMETIME<15:0> 122 + 27N
2017-2018 Microchip Technology Inc. DS70005349E-page 423
dsPIC33CK256MP508 FAMILY
20.3 Control Registers
REGISTER 20-1: SENTxCON1: SENTx CONTROL REGISTER 1
R/W-0 U-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
SNTEN — SNTSIDL — RCVEN TXM(1)TXPOL(1)CRCEN
bit 15 bit 8
R/W-0 R/W-0 U-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0
PPP SPCEN(2)—PS— NIBCNT2 NIBCNT1 NIBCNT0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 SNTEN: SENTx Enable bit
1 = SENTx is enabled
0 = SENTx is disabled
bit 14 Unimplemented: Read as ‘0’
bit 13 SNTSIDL: SENTx Stop in Idle Mode bit
1 = Discontinues module operation when the device enters Idle mode
0 = Continues module operation in Idle mode
bit 12 Unimplemented: Read as ‘0’
bit 11 RCVEN: SENTx Receive Enable bit
1 = SENTx operates as a receiver
0 = SENTx operates as a transmitter (sensor)
bit 10 TXM: SENTx Transmit Mode bit(1)
1 = SENTx transmits data frame only when triggered using the SYNCTXEN status bit
0 = SENTx transmits data frames continuously while SNTEN = 1
bit 9 TXPOL: SENTx Transmit Polarity bit(1)
1 = SENTx data output pin is low in the Idle state
0 = SENTx data output pin is high in the Idle state
bit 8 CRCEN: CRC Enable bit
Module in Receive Mode (RCVEN = 1):
1 = SENTx performs CRC verification on received data using the preferred J2716 method
0 = SENTx does not perform CRC verification on received data
Module in Transmit Mode (RCVEN = 1):
1 = SENTx automatically calculates CRC using the preferred J2716 method
0 = SENTx does not calculate CRC
bit 7 PPP: Pause Pulse Present bit
1 = SENTx is configured to transmit/receive SENT messages with pause pulse
0 = SENTx is configured to transmit/receive SENT messages without pause pulse
bit 6 SPCEN: Short PWM Code Enable bit(2)
1 = SPC control from external source is enabled
0 = SPC control from external source is disabled
bit 5 Unimplemented: Read as ‘0’
Note 1: This bit has no function in Receive mode (RCVEN = 1).
2: This bit has no function in Transmit mode (RCVEN = 0).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 424 2017-2018 Microchip Technology Inc.
bit 4 PS: SENTx Module Clock Prescaler (divider) bits
1 = Divide-by-4
0 = Divide-by-1
bit 3 Unimplemented: Read as ‘0’
bit 2-0 NIBCNT<2:0>: Nibble Count Control bits
111 = Reserved; do not use
110 = Module transmits/receives six data nibbles in a SENT data pocket
101 = Module transmits/receives five data nibbles in a SENT data pocket
100 = Module transmits/receives four data nibbles in a SENT data pocket
011 = Module transmits/receives three data nibbles in a SENT data pocket
010 = Module transmits/receives two data nibbles in a SENT data pocket
001 = Module transmits/receives one data nibble in a SENT data pocket
000 = Reserved; do not use
REGISTER 20-1: SENTxCON1: SENTx CONTROL REGISTER 1 (CONTINUED)
Note 1: This bit has no function in Receive mode (RCVEN = 1).
2: This bit has no function in Transmit mode (RCVEN = 0).
2017-2018 Microchip Technology Inc. DS70005349E-page 425
dsPIC33CK256MP508 FAMILY
REGISTER 20-2: SENTxSTAT: SENTx STATUS REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R-0 R-0 R-0 R-0 R/C-0 R/C-0 R-0 HC/R/W-0
PAUSE NIB2 NIB1 NIB0 CRCERR FRMERR RXIDLE SYNCTXEN(1)
bit 7 bit 0
Legend: C = Clearable bit HC = Hardware Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7 PAUSE: Pause Period Status bit
1 = The module is transmitting/receiving a pause period
0 = The module is not transmitting/receiving a pause period
bit 6-4 NIB<2:0>: Nibble Status bits
Module in Transmit Mode (RCVEN = 0):
111 = Module is transmitting a CRC nibble
110 = Module is transmitting Data Nibble 6
101 = Module is transmitting Data Nibble 5
100 = Module is transmitting Data Nibble 4
011 = Module is transmitting Data Nibble 3
010 = Module is transmitting Data Nibble 2
001 = Module is transmitting Data Nibble 1
000 = Module is transmitting a status nibble or pause period, or is not transmitting
Module in Receive Mode (RCVEN = 1):
111 = Module is receiving a CRC nibble or was receiving this nibble when an error occurred
110 = Module is receiving Data Nibble 6 or was receiving this nibble when an error occurred
101 = Module is receiving Data Nibble 5 or was receiving this nibble when an error occurred
100 = Module is receiving Data Nibble 4 or was receiving this nibble when an error occurred
011 = Module is receiving Data Nibble 3 or was receiving this nibble when an error occurred
010 = Module is receiving Data Nibble 2 or was receiving this nibble when an error occurred
001 = Module is receiving Data Nibble 1 or was receiving this nibble when an error occurred
000 = Module is receiving a status nibble or waiting for Sync
bit 3 CRCERR: CRC Status bit (Receive mode only)
1 = A CRC error has occurred for the 1-6 data nibbles in SENTxDATL/H
0 = A CRC error has not occurred
bit 2 FRMERR: Framing Error Status bit (Receive mode only)
1 = A data nibble was received with less than 12 tick periods or greater than 27 tick periods
0 = Framing error has not occurred
bit 1 RXIDLE: SENTx Receiver Idle Status bit (Receive mode only)
1 = The SENTx data bus has been Idle (high) for a period of SYNCMAX<15:0> or greater
0 = The SENTx data bus is not Idle
Note 1: In Receive mode (RCVEN = 1), the SYNCTXEN bit is read-only.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 426 2017-2018 Microchip Technology Inc.
bit 0 SYNCTXEN: SENTx Synchronization Period Status/Transmit Enable bit(1)
Module in Receive Mode (RCVEN = 1):
1 = A valid synchronization period was detected; the module is receiving nibble data
0 = No synchronization period has been detected; the module is not receiving nibble data
Module in Asynchronous Transmit Mode (RCVEN = 0, TXM = 0):
The bit always reads as ‘1’ when the module is enabled, indicating the module transmits SENTx data
frames continuously. The bit reads ‘0’ when the module is disabled.
Module in Synchronous Transmit Mode (RCVEN = 0, TXM = 1):
1 = The module is transmitting a SENTx data frame
0 = The module is not transmitting a data frame, user software may set SYNCTXEN to start another
data frame transmission
REGISTER 20-2: SENTxSTAT: SENTx STATUS REGISTER (CONTINUED)
Note 1: In Receive mode (RCVEN = 1), the SYNCTXEN bit is read-only.
2017-2018 Microchip Technology Inc. DS70005349E-page 427
dsPIC33CK256MP508 FAMILY
REGISTER 20-3: SENTxDATL: SENTx RECEIVE DATA REGISTER LOW(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DATA4<3:0> DATA5<3:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DATA6<3:0> CRC<3:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 DATA4<3:0>: Data Nibble 4 Data bits
bit 11-8 DATA5<3:0>: Data Nibble 5 Data bits
bit 7-4 DATA6<3:0>: Data Nibble 6 Data bits
bit 3-0 CRC<3:0>: CRC Nibble Data bits
Note 1: Register bits are read-only in Receive mode (RCVEN = 1). In Transmit mode, the CRC<3:0> bits are
read-only when automatic CRC calculation is enabled (RCVEN = 0, CRCEN = 1).
REGISTER 20-4: SENTxDATH: SENTx RECEIVE DATA REGISTER HIGH(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
STAT<3:0> DATA1<3:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DATA2<3:0> DATA3<3:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 STAT<3:0>: Status Nibble Data bits
bit 11-8 DATA1<3:0>: Data Nibble 1 Data bits
bit 7-4 DATA2<3:0>: Data Nibble 2 Data bits
bit 3-0 DATA3<3:0>: Data Nibble 3 Data bits
Note 1: Register bits are read-only in Receive mode (RCVEN = 1). In Transmit mode, the CRC<3:0> bits are
read-only when automatic CRC calculation is enabled (RCVEN = 0, CRCEN = 1).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 428 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 429
dsPIC33CK256MP508 FAMILY
21.0 TIMER1
The Timer1 module is a 16-bit timer that can operate as
a free-running interval timer/counter.
The Timer1 module has the following unique features
over other timers:
• Can be Operated in Asynchronous Counter mode
• Asynchronous Timer
• Operational during CPU Sleep mode
• Software Selectable Prescalers 1:1, 1:8, 1:64
and 1:256
• External Clock Selection Control
• The Timer1 External Clock Input (T1CK) can
Optionally be Synchronized to the Internal Device
Clock and the Clock Synchronization is Performed
after the Prescaler
If Timer1 is used for SCCP, the timer should be running
in Synchronous mode.
The Timer1 module can operate in one of the following
modes:
• Timer mode
• Gated Timer mode
• Synchronous Counter mode
• Asynchronous Counter mode
A block diagram of Timer1 is shown in Figure 21-1.
FIGURE 21-1: 16-BIT TIMER1 MODULE BLOCK DIAGRAM
Note 1: This data sheet summarizes the features of
the dsPIC33CK256MP508 family of
devices. It is not intended to be a compre-
hensive reference source. To complement
the information in this data sheet, refer to
“Timers” (www.microchip.com/DS70362)
in the “dsPIC33/PIC24 Family Reference
Manual”.
PRx
Comparator
TMRx
0
1Timer
TGATE
TGATE
tmr_clk
Interrupt
Prescaler
2
TCKPS<1:0>
01
10
00
TGATE
1
2
0
TECS<1:0>
3
TCY
FOSC
FRC
T1CK
(External
Clock)
Sync 0
1
TCY
TCS
TGATE
11
dsPIC33CK256MP508 FAMILY
DS70005349E-page 430 2017-2018 Microchip Technology Inc.
21.1 Timer1 Control Register
REGISTER 21-1: T1CON: TIMER1 CONTROL REGISTER
R/W-0 U-0 R/W-0 R/W-0 R-0 R-0 R/W-0 R/W-0
TON(1)— SIDL TMWDIS TMWIP PRWIP TECS1 TECS0
bit 15 bit 8
R/W-0 U-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 U-0
TGATE — TCKPS1 TCKPS0 — TSYNC(1)TCS(1)—
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 TON: Timer1 On bit(1)
1 = Starts 16-bit Timer1
0 = Stops 16-bit Timer1
bit 14 Unimplemented: Read as ‘0’
bit 13 SIDL: Timer1 Stop in Idle Mode bit
1 = Discontinues module operation when device enters Idle mode
0 = Continues module operation in Idle mode
bit 12 TMWDIS: Asynchronous Timer1 Write Disable bit
1 = Timer writes are ignored while a posted write to TMR1 or PR1 is synchronized to the asynchronous
clock domain
0 = Back-to-back writes are enabled in Asynchronous mode
bit 11 TMWIP: Asynchronous Timer1 Write in Progress bit
1 = Write to the timer in Asynchronous mode is pending
0 = Write to the timer in Asynchronous mode is complete
bit 10 PRWIP: Asynchronous Period Write in Progress bit
1 = Write to the Period register in Asynchronous mode is pending
0 = Write to the Period register in Asynchronous mode is complete
bit 9-8 TECS<1:0>: Timer1 Extended Clock Select bits
11 = FRC clock
10 = FOSC
01 = TCY
00 = External Clock comes from the T1CK pin
bit 7 TGATE: Timer1 Gated Time Accumulation Enable bit
When TCS = 1:
This bit is ignored.
When TCS = 0:
1 = Gated time accumulation is enabled
0 = Gated time accumulation is disabled
bit 6 Unimplemented: Read as ‘0’
Note 1: When Timer1 is enabled in External Synchronous Counter mode (TCS = 1, TSYNC = 1, TON = 1), any
attempts by user software to write to the TMR1 register are ignored.
2017-2018 Microchip Technology Inc. DS70005349E-page 431
dsPIC33CK256MP508 FAMILY
bit 5-4 TCKPS<1:0>: Timer1 Input Clock Prescale Select bits
11 = 1:256
10 = 1:64
01 = 1:8
00 = 1:1
bit 3 Unimplemented: Read as ‘0’
bit 2 TSYNC: Timer1 External Clock Input Synchronization Select bit(1)
When TCS = 1:
1 = Synchronizes the External Clock input
0 = Does not synchronize the External Clock input
When TCS = 0:
This bit is ignored.
bit 1 TCS: Timer1 Clock Source Select bit(1)
1 = External Clock source selected by TECS<1:0>
0 = Internal peripheral clock (FP)
bit 0 Unimplemented: Read as ‘0’
REGISTER 21-1: T1CON: TIMER1 CONTROL REGISTER (CONTINUED)
Note 1: When Timer1 is enabled in External Synchronous Counter mode (TCS = 1, TSYNC = 1, TON = 1), any
attempts by user software to write to the TMR1 register are ignored.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 432 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 433
dsPIC33CK256MP508 FAMILY
22.0 CAPTURE/COMPARE/PWM/
TIMER MODULES
(SCCP/MCCP)
dsPIC33CK256MP508 family devices include eight
SCCP and one MCCP Capture/Compare/PWM/Timer
base modules, which provide the functionality of three
different peripherals from earlier PIC24F devices. The
module can operate in one of three major modes:
• General Purpose Timer
• Input Capture
• Output Compare/PWM
The module is provided in two different forms, distin-
guished by the number of PWM outputs that the
module can generate. Single Capture/Compare/PWM
(SCCP) output modules provide only one PWM output.
Multiple Capture/Compare/PWM (MCCP) output
modules can provide up to six outputs and an extended
range of power control features, depending on the pin
count of the particular device. All other features of the
modules are identical.
The SCCPx and MCCPx modules can be operated in
only one of the three major modes at any time. The
other modes are not available unless the module is
reconfigured for the new mode.
A conceptual block diagram for the module is shown in
Figure 22-1. All three modes share a time base gener-
ator and a common Timer register pair (CCPxTMRH/L);
other shared hardware components are added as a
particular mode requires.
Each module has a total of six control and status
registers:
• CCPxCON1L (Register 22-1)
• CCPxCON1H (Register 22-2)
• CCPxCON2L (Register 22-3)
• CCPxCON2H (Register 22-4)
• CCPxCON3H (Register 22-6)
• CCPxSTATL (Register 22-7)
Each module also includes eight buffer/counter
registers that serve as Timer Value registers or data
holding buffers:
• CCPxTMRH/CCPxTMRL (CCPx Timer High/Low
Counters)
• CCPxPRH/CCPxPRL (CCPx Timer Period
High/Low)
• CCPxRA (CCPx Primary Output Compare
Data Buffer)
• CCPxRB (CCPx Secondary Output Compare
Data Buffer)
• CCPxBUFH/CCPxBUFL (CCPx Input Capture
High/Low Buffers)
FIGURE 22-1: SCCPx CONCEPTUAL BLOCK DIAGRAM
Note 1: This data sheet summarizes the features of
the dsPIC33CK256MP508 family of
devices. It is not intended to be a
comprehensive reference source. For
more information on the MCCP/SCCP
modules, refer to “Capture/Compare/
PWM/Timer (MCCP and SCCP)”
(www.microchip.com/DS33035) in the
“dsPIC33/PIC24 Family Reference
Manual”.
Clock
Sources
Input Capture
Output Compare/
PWM
T32
CCSEL
MOD<3:0>
Sync and
Gating
Sources
16/32-Bit
CCPxIF
CCTxIF
External
Compare/PWM
Output(s)
OCFA/OCFB
Timer
Sync/Trigger Out
Special Trigger (to ADC)
Capture Input
Time Base
Generator CCPxTMRH/L
dsPIC33CK256MP508 FAMILY
DS70005349E-page 434 2017-2018 Microchip Technology Inc.
22.1 Time Base Generator
The Timer Clock Generator (TCG) generates a clock
for the module’s internal time base, using one of the
clock signals already available on the microcontroller.
This is used as the time reference for the module in its
three major modes. The internal time base is shown in
Figure 22-2.
There are eight inputs available to the clock generator,
which are selected using the CLKSEL<2:0> bits
(CCPxCON1L<10:8>). Available sources include the
FRC and LPRC, the Secondary Oscillator and the TCLKI
External Clock inputs. The system clock is the default
source (CLKSEL<2:0> = 000).
FIGURE 22-2: TIMER CLOCK GENERATOR
22.2 General Purpose Timer
Timer mode is selected when CCSEL = 0 and
MOD<3:0> = 0000. The timer can function as a 32-bit
timer or a dual 16-bit timer, depending on the setting of
the T32 bit (Table 22-1).
TABLE 22-1: TIMER OPERATION MODE
Dual 16-Bit Timer mode provides a simple timer func-
tion with two independent 16-bit timer/counters. The
primary timer uses CCPxTMRL and CCPxPRL. Only
the primary timer can interact with other modules on
the device. It generates the SCCPx sync out signals for
use by other SCCP modules. It can also use the
SYNC<4:0> bits signal generated by other modules.
The secondary timer uses CCPxTMRH and CCPxPRH. It
is intended to be used only as a periodic interrupt source
for scheduling CPU events. It does not generate an output
sync/trigger signal like the primary time base. In Dual
Timer mode, the CCPx Secondary Timer Period register,
CCPxPRH, generates the SCCP compare event
(CCPxIF) used by many other modules on the device.
The 32-Bit Timer mode uses the CCPxTMRL and
CCPxTMRH registers, together, as a single 32-bit timer.
When CCPxTMRL overflows, CCPxTMRH increments
by one. This mode provides a simple timer function
when it is important to track long time periods. Note that
the T32 bit (CCPxCON1L<5>) should be set before the
CCPxTMRL or CCPxPRH registers are written to
initialize the 32-bit timer.
22.2.1 SYNC AND TRIGGER OPERATION
In both 16-bit and 32-bit modes, the timer can also
function in either synchronization (“sync”) or trigger
operation. Both use the SYNC<4:0> bits
(CCPxCON1H<4:0>) to determine the input signal
source. The difference is how that signal affects the
timer.
In sync operation, the timer Reset or clear occurs when
the input selected by SYNC<4:0> is asserted. The
timer immediately begins to count again from zero
unless it is held for some other reason. Sync operation
is used whenever the TRIGEN bit (CCPxCON1H<7>)
is cleared. SYNC<4:0> can have any value, except
‘11111’.
In trigger operation, the timer is held in Reset until the
input selected by SYNC<4:0> is asserted; when it
occurs, the timer starts counting. Trigger operation is
used whenever the TRIGEN bit is set. In Trigger mode,
the timer will continue running after a trigger event as
long as the CCPTRIG bit (CCPxSTATL<7>) is set. To
clear CCPTRIG, the TRCLR bit (CCPxSTATL<5>) must
be set to clear the trigger event, reset the timer and
hold it at zero until another trigger event occurs. On
dsPIC33CK256MP508 family devices, trigger opera-
tion can only be used when the system clock is the time
base source (CLKSEL<2:0> = 000).
CLKSEL<2:0>
TMRPS<1:0>
Prescaler Clock
Synchronizer
TMRSYNC
Gate(1)
SSDG
Clock
Sources
To R e s t
of Module
Note 1: Gating is available in Timer modes only.
T32
(CCPxCON1L<5>) Operating Mode
0Dual Timer Mode (16-bit)
1Timer Mode (32-bit)
2017-2018 Microchip Technology Inc. DS70005349E-page 435
dsPIC33CK256MP508 FAMILY
22.3 Output Compare Mode
Output Compare mode compares the Timer register
value with the value of one or two Compare registers,
depending on its mode of operation. The Output
Compare x module, on compare match events, has the
ability to generate a single output transition or a train of
output pulses. Like most PIC® MCU peripherals, the
Output Compare x module can also generate interrupts
on a compare match event.
Table 22-2 shows the various modes available in
Output Compare modes.
TABLE 22-2: OUTPUT COMPARE x/PWMx MODES
22.4 Input Capture Mode
Input Capture mode is used to capture a timer value
from an independent timer base, upon an event, on an
input pin or other internal trigger source. The input cap-
ture features are useful in applications requiring
frequency (time period) and pulse measurement.
Input Capture mode uses a dedicated 16/32-bit, synchro-
nous, up counting timer for the capture function. The timer
value is written to the FIFO when a capture event occurs.
The internal value may be read (with a synchronization
delay) using the CCPxTMRH/L register.
To use Input Capture mode, the CCSEL bit
(CCPxCON1L<4>) must be set. The T32 and the
MOD<3:0> bits are used to select the proper Capture
mode, as shown in Table 22-3 .
MOD<3:0>
(CCPxCON1L<3:0>)
T32
(CCPxCON1L<5>) Operating Mode
0001 0 Output High on Compare (16-bit)
Single Edge Mode
0001 1 Output High on Compare (32-bit)
0010 0 Output Low on Compare (16-bit)
0010 1 Output Low on Compare (32-bit)
0011 0 Output Toggle on Compare (16-bit)
0011 1 Output Toggle on Compare (32-bit)
0100 0 Dual Edge Compare (16-bit) Dual Edge Mode
0101 0 Dual Edge Compare (16-bit buffered) PWM Mode
TABLE 22-3: INPUT CAPTURE x MODES
MOD<3:0>
(CCPxCON1L<3:0>)
T32
(CCPxCON1L<5>) Operating Mode
0000 0 Edge Detect (16-bit capture)
0000 1 Edge Detect (32-bit capture)
0001 0 Every Rising (16-bit capture)
0001 1 Every Rising (32-bit capture)
0010 0 Every Falling (16-bit capture)
0010 1 Every Falling (32-bit capture)
0011 0 Every Rising/Falling (16-bit capture)
0011 1 Every Rising/Falling (32-bit capture)
0100 0 Every 4th Rising (16-bit capture)
0100 1 Every 4th Rising (32-bit capture)
0101 0 Every 16th Rising (16-bit capture)
0101 1 Every 16th Rising (32-bit capture)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 436 2017-2018 Microchip Technology Inc.
22.5 Auxiliary Output
The SCCPx modules have an auxiliary (secondary)
output that provides other peripherals access to inter-
nal module signals. The auxiliary output is intended to
connect to other SCCP modules, or other digital
peripherals, to provide these types of functions:
• Time Base Synchronization
• Peripheral Trigger and Clock Inputs
• Signal Gating
The type of output signal is selected using the
AUXOUT<1:0> control bits (CCPxCON2H<4:3>). The
type of output signal is also dependent on the module
operating mode.
TABLE 22-4: AUXILIARY OUTPUT
AUXOUT<1:0> CCSEL MOD<3:0> Comments Signal Description
00 x xxxx Auxiliary output disabled No Output
01 0 0000 Time Base modes Time Base Period Reset or Rollover
10 Special Event Trigger Output
11 No Output
01 0 0001
through
1111
Output Compare modes Time Base Period Reset or Rollover
10 Output Compare Event Signal
11 Output Compare Signal
01 1 xxxx Input Capture modes Time Base Period Reset or Rollover
10 Reflects the Value of the ICDIS bit
11 Input Capture Event Signal
2017-2018 Microchip Technology Inc. DS70005349E-page 437
dsPIC33CK256MP508 FAMILY
22.6 Control Registers
REGISTER 22-1: CCPxCON1L: CCPx CONTROL 1 LOW REGISTERS
R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CCPON — CCPSIDL CCPSLP TMRSYNC CLKSEL2 CLKSEL1 CLKSEL0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TMRPS1 TMRPS0 T32 CCSEL MOD3 MOD2 MOD1 MOD0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 CCPON: CCPx Module Enable bit
1 = Module is enabled with an operating mode specified by the MOD<3:0> control bits
0 = Module is disabled
bit 14 Unimplemented: Read as ‘0’
bit 13 CCPSIDL: CCPx Stop in Idle Mode Bit
1 = Discontinues module operation when device enters Idle mode
0 = Continues module operation in Idle mode
bit 12 CCPSLP: CCPx Sleep Mode Enable bit
1 = Module continues to operate in Sleep modes
0 = Module does not operate in Sleep modes
bit 11 TMRSYNC: Time Base Clock Synchronization bit
1 = Asynchronous module time base clock is selected and synchronized to the internal system clocks
(CLKSEL<2:0> 000)
0 = Synchronous module time base clock is selected and does not require synchronization
(CLKSEL<2:0> = 000)
bit 10-8 CLKSEL<2:0>: CCPx Time Base Clock Select bits
111 = PPS TxCK input
110 = CLC4
101 = CLC3
100 = CLC2
011 = CLC1
010 = FOSC
001 = Reference Clock (REFCLKO)
000 = FOSC/2 (FP)
bit 7-6 TMRPS<1:0>: Time Base Prescale Select bits
11 = 1:64 Prescaler
10 = 1:16 Prescaler
01 = 1:4 Prescaler
00 = 1:1 Prescaler
bit 5 T32: 32-Bit Time Base Select bit
1 = Uses 32-bit time base for timer, single edge output compare or input capture function
0 = Uses 16-bit time base for timer, single edge output compare or input capture function
bit 4 CCSEL: Capture/Compare Mode Select bit
1 = Input Capture peripheral
0 = Output Compare/PWM/Timer peripheral (exact function is selected by the MOD<3:0> bits)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 438 2017-2018 Microchip Technology Inc.
bit 3-0 MOD<3:0>: CCPx Mode Select bits
For CCSEL = 1 (Input Capture modes):
1xxx = Reserved
011x = Reserved
0101 = Capture every 16th rising edge
0100 = Capture every 4th rising edge
0011 = Capture every rising and falling edge
0010 = Capture every falling edge
0001 = Capture every rising edge
0000 = Capture every rising and falling edge (Edge Detect mode)
For CCSEL = 0 (Output Compare/Timer modes):
1111 = External Input mode: Pulse generator is disabled, source is selected by ICS<2:0>
1110 = Reserved
110x = Reserved
10xx = Reserved
0111 = Reserved
0110 = Reserved
0101 = Dual Edge Compare mode, buffered
0100 = Dual Edge Compare mode
0011 = 16-Bit/32-Bit Single Edge mode, toggles output on compare match
0010 = 16-Bit/32-Bit Single Edge mode, drives output low on compare match
0001 = 16-Bit/32-Bit Single Edge mode, drives output high on compare match
0000 = 16-Bit/32-Bit Timer mode, output functions are disabled
REGISTER 22-1: CCPxCON1L: CCPx CONTROL 1 LOW REGISTERS (CONTINUED)
2017-2018 Microchip Technology Inc. DS70005349E-page 439
dsPIC33CK256MP508 FAMILY
REGISTER 22-2: CCPxCON1H: CCPx CONTROL 1 HIGH REGISTERS
R/W-0 R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
OPSSRC(1)RTRGEN(2)—— OPS3(3)OPS2(3)OPS1(3)OPS0(3)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TRIGEN ONESHOT ALTSYNC SYNC4 SYNC3 SYNC2 SYNC1 SYNC0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 OPSSRC: Output Postscaler Source Select bit(1)
1 = Output postscaler scales module trigger output events
0 = Output postscaler scales time base interrupt events
bit 14 RTRGEN: Retrigger Enable bit(2)
1 = Time base can be retriggered when TRIGEN bit = 1
0 = Time base may not be retriggered when TRIGEN bit = 1
bit 13-12 Unimplemented: Read as ‘0’
bit 11-8 OPS3<3:0>: CCPx Interrupt Output Postscale Select bits(3)
1111 = Interrupt every 16th time base period match
1110 = Interrupt every 15th time base period match
...
0100 = Interrupt every 5th time base period match
0011 = Interrupt every 4th time base period match or 4th input capture event
0010 = Interrupt every 3rd time base period match or 3rd input capture event
0001 = Interrupt every 2nd time base period match or 2nd input capture event
0000 = Interrupt after each time base period match or input capture event
bit 7 TRIGEN: CCPx Trigger Enable bit
1 = Trigger operation of time base is enabled
0 = Trigger operation of time base is disabled
bit 6 ONESHOT: One-Shot Trigger Mode Enable bit
1 = One-Shot Trigger mode is enabled; trigger duration is set by OSCNT<2:0>
0 = One-Shot Trigger mode is disabled
bit 5 ALTSYNC: CCPx Clock Select bits
1 = An alternate signal is used as the module synchronization output signal
0 = The module synchronization output signal is the Time Base Reset/rollover event
bit 4-0 SYNC<4:0>: CCPx Synchronization Source Select bits
See Table 22-5 for the definition of inputs.
Note 1: This control bit has no function in Input Capture modes.
2: This control bit has no function when TRIGEN = 0.
3: Output postscale settings, from 1:5 to 1:16 (0100-1111), will result in a FIFO buffer overflow for
Input Capture modes.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 440 2017-2018 Microchip Technology Inc.
TABLE 22-5: SYNCHRONIZATION SOURCES
SYNC<4:0> Synchronization Source
00000 None; Timer with Rollover on CCPxPR Match or FFFFh
00001 Module’s Own Timer Sync Out
00010 Sync Output SCCP2
00011 Sync Output SCCP3
00100 Sync Output SCCP4
00101 Sync Output SCCP5
00110 Sync Output SCCP6
00111 Sync Output SCCP7
01000 Sync Output SCCP8
01001 INT0
01010 INT1
01011 INT2
01100 UART1 RX Edge Detect
01101 UART1 TX Edge Detect
01110 UART2 RX Edge Detect
01111 UART2 TX Edge Detect
10000 CLC1 Output
10001 CLC2 Output
10010 CLC3 Output
10011 CLC4 Output
10100 UART3 RX Edge Detect
10101 UART3 TX Edge Detect
10110 Sync Output MCCP9
10111 Comparator 1 Output
11000 Comparator 2 Output
11001 Comparator 3 Output
11010-11110 Reserved
11111 None; Timer with Auto-Rollover (FFFFh → 0000h)
2017-2018 Microchip Technology Inc. DS70005349E-page 441
dsPIC33CK256MP508 FAMILY
REGISTER 22-3: CCPxCON2L: CCPx CONTROL 2 LOW REGISTERS
R/W-0 R/W-0 U-0 R/W-0 U-0 U-0 U-0 U-0
PWMRSEN ASDGM — SSDG — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ASDG7 ASDG6 ASDG5 ASDG4 ASDG3 ASDG2 ASDG1 ASDG0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 PWMRSEN: CCPx PWM Restart Enable bit
1 = ASEVT bit clears automatically at the beginning of the next PWM period, after the shutdown input
has ended
0 = ASEVT bit must be cleared in software to resume PWM activity on output pins
bit 14 ASDGM: CCPx Auto-Shutdown Gate Mode Enable bit
1 = Waits until the next Time Base Reset or rollover for shutdown to occur
0 = Shutdown event occurs immediately
bit 13 Unimplemented: Read as ‘0’
bit 12 SSDG: CCPx Software Shutdown/Gate Control bit
1 = Manually forces auto-shutdown, timer clock gate or input capture signal gate event (setting of
ASDGM bit still applies)
0 = Normal module operation
bit 11-8 Unimplemented: Read as ‘0’
bit 7-0 ASDG<7:0>: CCPx Auto-Shutdown/Gating Source Enable bits
1 = ASDGx Source n is enabled (see Tabl e 2 2- 6 for auto-shutdown/gating sources)
0 = ASDGx Source n is disabled
TABLE 22-6: AUTO-SHUTDOWN AND GATING SOURCES
ASDG<x>
Bit
Auto-Shutdown/Gating Source
SCCP1 SCCP2 SCCP3 SCCP4 SCCP5 SCCP6 SCCP7 SCCP8 MCCP9
0 Comparator 1 Output
1 Comparator 2 Output
2OCFC
3OCFD
4ICM1
(1)ICM2(1)ICM3(1)ICM4(1)ICM5(1)ICM6(1)ICM7(1)ICM8(1)ICM9(1)
5CLC1
(1)
6OCFA
(1)
7OCFB
(1)
Note 1: Selected by Peripheral Pin Select (PPS).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 442 2017-2018 Microchip Technology Inc.
REGISTER 22-4: CCPxCON2H: CCPx CONTROL 2 HIGH REGISTERS
R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
OENSYNC —OCFEN
(1)OCEEN(1)OCDEN(1)OCCEN(1)OCBEN(1)OCAEN
bit 15 bit 8
R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ICGSM1 ICGSM0 — AUXOUT1 AUXOUT0 ICS2 ICS1 ICS0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 OENSYNC: Output Enable Synchronization bit
1 = Update by output enable bits occurs on the next Time Base Reset or rollover
0 = Update by output enable bits occurs immediately
bit 14 Unimplemented: Read as ‘0’
bit 13-8 OC<F:A>EN: Output Enable/Steering Control bits(1)
1 = OCMx pin is controlled by the CCPx module and produces an output compare or PWM signal
0 = OCMx pin is not controlled by the CCPx module; the pin is available to the port logic or another
peripheral multiplexed on the pin
bit 7-6 ICGSM<1:0>: Input Capture Gating Source Mode Control bits
11 = Reserved
10 = One-Shot mode: Falling edge from gating source disables future capture events (ICDIS = 1)
01 = One-Shot mode: Rising edge from gating source enables future capture events (ICDIS = 0)
00 = Level-Sensitive mode: A high level from gating source will enable future capture events; a low
level will disable future capture events
bit 5 Unimplemented: Read as ‘0’
bit 4-3 AUXOUT<1:0>: Auxiliary Output Signal on Event Selection bits
11 = Input capture or output compare event; no signal in Timer mode
10 = Signal output is defined by module operating mode (see Table 22-4)
01 = Time base rollover event (all modes)
00 =Disabled
bit 2-0 ICS<2:0>: Input Capture Source Select bits
111 = CLC4 output
110 = CLC3 output
101 = CLC2 output
100 = CLC1 output
011 = Comparator 3 output
010 = Comparator 2 output
001 = Comparator 1 output
000 = SCCP Input Capture x (ICx) pin (PPS)
Note 1: OCFEN through OCBEN (bits<13:9>) are implemented in the MCCP9 module only.
2017-2018 Microchip Technology Inc. DS70005349E-page 443
dsPIC33CK256MP508 FAMILY
REGISTER 22-5: CCPxCON3L: CCPx CONTROL 3 LOW REGISTERS(1)
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
——DT<5:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-6 Unimplemented: Read as ‘0’
bit 5-0 DT<5:0>: CCPx Dead-Time Select bits
111111 = Inserts 63 dead-time delay periods between complementary output signals
111110 = Inserts 62 dead-time delay periods between complementary output signals
...
000010 = Inserts 2 dead-time delay periods between complementary output signals
000001 = Inserts 1 dead-time delay period between complementary output signals
000000 = Dead-time logic is disabled
Note 1: This register is implemented in the MCCP9 module only.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 444 2017-2018 Microchip Technology Inc.
REGISTER 22-6: CCPxCON3H: CCPx CONTROL 3 HIGH REGISTERS
R/W-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0
OETRIG OSCNT2 OSCNT1 OSCNT0 —OUTM2
(1)OUTM1(1)OUTM0(1)
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— POLACE POLBDF(1)PSSACE1 PSSACE0 PSSBDF1(1)PSSBDF0(1)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 OETRIG: CCPx Dead-Time Select bit
1 = For Triggered mode (TRIGEN = 1): Module does not drive enabled output pins until triggered
0 = Normal output pin operation
bit 14-12 OSCNT<2:0>: One-Shot Event Count bits
111 = Extends one-shot event by seven time base periods (eight time base periods total)
110 = Extends one-shot event by six time base periods (seven time base periods total)
101 = Extends one-shot event by five time base periods (six time base periods total)
100 = Extends one-shot event by four time base periods (five time base periods total)
011 = Extends one-shot event by three time base periods (four time base periods total)
010 = Extends one-shot event by two time base periods (three time base periods total)
001 = Extends one-shot event by one time base period (two time base periods total)
000 = Does not extend one-shot Trigger event
bit 11 Unimplemented: Read as ‘0’
bit 10-8 OUTM<2:0>: PWMx Output Mode Control bits(1)
111 = Reserved
110 = Output Scan mode
101 = Brush DC Output mode, forward
100 = Brush DC Output mode, reverse
011 = Reserved
010 = Half-Bridge Output mode
001 = Push-Pull Output mode
000 = Steerable Single Output mode
bit 7-6 Unimplemented: Read as ‘0’
bit 5 POLACE: CCPx Output Pins, OCMxA, OCMxC and OCMxE, Polarity Control bit
1 = Output pin polarity is active-low
0 = Output pin polarity is active-high
bit 4 POLBDF: CCPx Output Pins, OCMxB, OCMxD and OCMxF, Polarity Control bit(1)
1 = Output pin polarity is active-low
0 = Output pin polarity is active-high
bit 3-2 PSSACE<1:0>: PWMx Output Pins, OCMxA, OCMxC and OCMxE, Shutdown State Control bits
11 = Pins are driven active when a shutdown event occurs
10 = Pins are driven inactive when a shutdown event occurs
0x = Pins are tri-stated when a shutdown event occurs
bit 1-0 PSSBDF<1:0>: PWMx Output Pins, OCMxB, OCMxD, and OCMxF, Shutdown State Control bits(1)
11 = Pins are driven active when a shutdown event occurs
10 = Pins are driven inactive when a shutdown event occurs
0x = Pins are in a high-impedance state when a shutdown event occurs
Note 1: These bits are implemented in the MCCP9 module only.
2017-2018 Microchip Technology Inc. DS70005349E-page 445
dsPIC33CK256MP508 FAMILY
REGISTER 22-7: CCPxSTATL: CCPx STATUS REGISTER
U-0 U-0 U-0 U-0 U-0 W1-0 U-0 U-0
— — — — —ICGARM— —
bit 15 bit 8
R-0 W1-0 W1-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0
CCPTRIG TRSET TRCLR ASEVT SCEVT ICDIS ICOV ICBNE
bit 7 bit 0
Legend: C = Clearable bit
R = Readable bit W1 = Write ‘1’ Only bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 Unimplemented: Read as ‘0’
bit 10 ICGARM: Input Capture Gate Arm bit
A write of ‘1’ to this location will arm the input capture gating logic for a one-shot gate event when
ICGSM<1:0> = 01 or 10. Bit always reads as ‘0’.
bit 9-8 Unimplemented: Read as ‘0’
bit 7 CCPTRIG: CCPx Trigger Status bit
1 = Timer has been triggered and is running
0 = Timer has not been triggered and is held in Reset
bit 6 TRSET: CCPx Trigger Set Request bit
Writes ‘1’ to this location to trigger the timer when TRIGEN = 1 (location always reads as ‘0’).
bit 5 TRCLR: CCPx Trigger Clear Request bit
Writes ‘1’ to this location to cancel the timer trigger when TRIGEN = 1 (location always reads as ‘0’).
bit 4 ASEVT: CCPx Auto-Shutdown Event Status/Control bit
1 = A shutdown event is in progress; CCPx outputs are in the shutdown state
0 = CCPx outputs operate normally
bit 3 SCEVT: Single Edge Compare Event Status bit
1 = A single edge compare event has occurred
0 = A single edge compare event has not occurred
bit 2 ICDIS: Input Capture x Disable bit
1 = Event on Input Capture x pin (ICx) does not generate a capture event
0 = Event on Input Capture x pin will generate a capture event
bit 1 ICOV: Input Capture x Buffer Overflow Status bit
1 = The Input Capture x FIFO buffer has overflowed
0 = The Input Capture x FIFO buffer has not overflowed
bit 0 ICBNE: Input Capture x Buffer Status bit
1 = Input Capture x buffer has data available
0 = Input Capture x buffer is empty
dsPIC33CK256MP508 FAMILY
DS70005349E-page 446 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 447
dsPIC33CK256MP508 FAMILY
23.0 CONFIGURABLE LOGIC CELL
(CLC)
The Configurable Logic Cell (CLC) module allows the
user to specify combinations of signals as inputs to a
logic function and to use the logic output to control
other peripherals or I/O pins. This provides greater
flexibility and potential in embedded designs, since the
CLC module can operate outside the limitations of soft-
ware execution, and supports a vast amount of output
designs.
There are four input gates to the selected logic func-
tion. These four input gates select from a pool of up to
32 signals that are selected using four data source
selection multiplexers. Figure 23-1 shows an overview
of the module.
Figure 23-3 shows the details of the data source
multiplexers and Figure 23-2 shows the logic input gate
connections.
FIGURE 23-1: CLCx MODULE
Note 1:
This data sheet summarizes the features of
the dsPIC33CK256MP508 family of devices.
It is not intended to be a comprehensive ref-
erence source. For more information, refer
to “Configurable Logic Cell (CLC)”
(www.microchip.com/DS70005298) in the
“dsPIC33/PIC24 Family Reference Man-
ual”. The information in this data sheet
supersedes the information in the FRM.
Gate 1
Gate 2
Gate 3
Gate 4
Interrupt
det
Logic
Function CLCx
LCOE
Logic
LCPOL
LCOUT
DQ
CLK
MODE<2:0>
CLCx TRISx Control
Interrupt
det
INTP
INTN
LCEN
CLCxIF
Set
Output
Output
See Figure 23-2
See Figure 23-3
CLC
Inputs Input
Data
Selection
(32)
DS1<2:0>
DS2<2:0>
DS3<2:0>
DS4<2:0>
G1POL
G2POL
G3POL
G4POL
Gates
FCY
dsPIC33CK256MP508 FAMILY
DS70005349E-page 448 2017-2018 Microchip Technology Inc.
FIGURE 23-2: CLCx LOGIC FUNCTION COMBINATORIAL OPTIONS
Gate 1
Gate 2
Gate 3
Gate 4
Logic Output
Gate 1
Gate 2
Gate 3
Gate 4
Logic Output
Gate 1
Gate 2
Gate 3
Gate 4
Logic Output
S
R
Q
Gate 1
Gate 2
Gate 3
Gate 4
Logic Output
DQ
Gate 1
Gate 2
Gate 3
Gate 4
Logic Output
S
R
JQ
Gate 2
Gate 3
Gate 4
Logic Output
R
Gate 1
K
DQ
Gate 1
Gate 2
Gate 3
Gate 4
Logic Output
S
R
DQ
Gate 1
Gate 3
Logic Output
R
Gate 4
Gate 2
MODE<2:0> = 000
MODE<2:0> = 010
MODE<2:0> = 001
MODE<2:0> = 011
MODE<2:0> = 100
MODE<2:0> = 110
MODE<2:0> = 101
MODE<2:0> = 111
LE
AND – OR OR – XOR
4-Input AND S-R Latch
1-Input D Flip-Flop with S and R 2-Input D Flip-Flop with R
1-Input Transparent Latch with S and R
J-K Flip-Flop with R
2017-2018 Microchip Technology Inc. DS70005349E-page 449
dsPIC33CK256MP508 FAMILY
FIGURE 23-3: CLCx INPUT SOURCE SELECTION DIAGRAM
Gate 1
G1POL
Data Gate 1
G1D1T
Gate 2
Gate 3
Gate 4
Data Gate 2
Data Gate 3
Data Gate 4
G1D1N
DS1x (CLCxSEL<2:0>)
DS2x (CLCxSEL<6:4>)
Input 0
Input 1
Input 2
Input 5
Input 6
Input 7
Data Selection
Note: All controls are undefined at power-up.
Data 1 Non-Inverted
Data 1
Data 2 Non-Inverted
Data 2
Data 3 Non-Inverted
Data 3
Data 4 Non-Inverted
Data 4
(Same as Data Gate 1)
(Same as Data Gate 1)
(Same as Data Gate 1)
G1D2T
G1D2N
G1D3T
G1D3N
G1D4T
G1D4N
Inverted
Inverted
Inverted
Inverted
Input 8
Input 9
Input 10
Input 13
Input 14
Input 15
Input 3
Input 4
Input 11
Input 12
Input 18
Input 21
Input 22
Input 23
Input 19
Input 20
Input 17
Input 16
DS3x (CLCxSEL<10:8>)
Input 26
Input 29
Input 30
Input 31
Input 27
Input 28
Input 25
Input 24
DS4x (CLCxSEL<14:12>)
000
111
000
111
000
111
000
111
(CLCxCONH<0>)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 450 2017-2018 Microchip Technology Inc.
23.1 Control Registers
The CLCx module is controlled by the following registers:
•CLCxCONL
•CLCxCONH
• CLCxSEL
•CLCxGLSL
•CLCxGLSH
The CLCx Control registers (CLCxCONL and
CLCxCONH) are used to enable the module and inter-
rupts, control the output enable bit, select output polarity
and select the logic function. The CLCx Control registers
also allow the user to control the logic polarity of not only
the cell output, but also some intermediate variables.
The CLCx Input MUX Select register (CLCxSEL)
allows the user to select up to four data input sources
using the four data input selection multiplexers. Each
multiplexer has a list of eight data sources available.
The CLCx Gate Logic Input Select registers
(CLCxGLSL and CLCxGLSH) allow the user to select
which outputs from each of the selection MUXes are
used as inputs to the input gates of the logic cell. Each
data source MUX outputs both a true and a negated
version of its output. All of these eight signals are
enabled, ORed together by the logic cell input gates. If
no gate inputs are selected, the input to the gate will be
zero or one, depending on the GxPOL bits.
REGISTER 23-1: CLCxCONL: CLCx CONTROL REGISTER (LOW)
R/W-0 U-0 U-0 U-0 R/W-0 R/W-0 U-0 U-0
LCEN — — — INTP INTN — —
bit 15 bit 8
R-0 R-0 R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0
LCOE LCOUT LCPOL —— MODE2 MODE1 MODE0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 LCEN: CLCx Enable bit
1 = CLCx is enabled and mixing input signals
0 = CLCx is disabled and has logic zero outputs
bit 14-12 Unimplemented: Read as ‘0’
bit 11 INTP: CLCx Positive Edge Interrupt Enable bit
1 = Interrupt will be generated when a rising edge occurs on LCOUT
0 = Interrupt will not be generated
bit 10 INTN: CLCx Negative Edge Interrupt Enable bit
1 = Interrupt will be generated when a falling edge occurs on LCOUT
0 = Interrupt will not be generated
bit 9-8 Unimplemented: Read as ‘0’
bit 7 LCOE: CLCx Port Enable bit
1 = CLCx port pin output is enabled
0 = CLCx port pin output is disabled
bit 6 LCOUT: CLCx Data Output Status bit
1 = CLCx output high
0 = CLCx output low
bit 5 LCPOL: CLCx Output Polarity Control bit
1 = The output of the module is inverted
0 = The output of the module is not inverted
bit 4-3 Unimplemented: Read as ‘0’
2017-2018 Microchip Technology Inc. DS70005349E-page 451
dsPIC33CK256MP508 FAMILY
bit 2-0 MODE<2:0>: CLCx Mode bits
111 = Single input transparent latch with S and R
110 = JK flip-flop with R
101 = Two-input D flip-flop with R
100 = Single input D flip-flop with S and R
011 = SR latch
010 = Four-input AND
001 = Four-input OR-XOR
000 = Four-input AND-OR
REGISTER 23-1: CLCxCONL: CLCx CONTROL REGISTER (LOW) (CONTINUED)
REGISTER 23-2: CLCxCONH: CLCx CONTROL REGISTER (HIGH)
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
———— G4POL G3POL G2POL G1POL
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-4 Unimplemented: Read as ‘0’
bit 3 G4POL: Gate 4 Polarity Control bit
1 = Channel 4 logic output is inverted when applied to the logic cell
0 = Channel 4 logic output is not inverted
bit 2 G3POL: Gate 3 Polarity Control bit
1 = Channel 3 logic output is inverted when applied to the logic cell
0 = Channel 3 logic output is not inverted
bit 1 G2POL: Gate 2 Polarity Control bit
1 = Channel 2 logic output is inverted when applied to the logic cell
0 = Channel 2 logic output is not inverted
bit 0 G1POL: Gate 1 Polarity Control bit
1 = Channel 1 logic output is inverted when applied to the logic cell
0 = Channel 1 logic output is not inverted
dsPIC33CK256MP508 FAMILY
DS70005349E-page 452 2017-2018 Microchip Technology Inc.
REGISTER 23-3: CLCxSEL: CLCx INPUT MUX SELECT REGISTER
U-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0
—DS4<2:0>—DS3<2:0>
bit 15 bit 8
U-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0
—DS2<2:0>—DS1<2:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 DS4<2:0>: Data Selection MUX 4 Signal Selection bits
111 = SCCP3 auxiliary out
110 = SCCP1 auxiliary out
101 = CLCIND pin
100 = Reserved
011 = SPI1 Input (SDIx)(1)
010 = Comparator 3 output
001 = CLC2 output
000 = PWM Event A
bit 11 Unimplemented: Read as ‘0’
bit 10-8 DS3<2:0>: Data Selection MUX 3 Signal Selection bits
111 = SCCP4 Compare Event Flag (CCP4IF)
110 = SCCP3 Compare Event Flag (CCP3IF)
101 = CLC4 out
100 = UART1 RX output corresponding to CLCx module
011 = SPI1 Output (SDOx) corresponding to CLCx module(1)
010 = Comparator 2 output
001 = CLC1 output
000 = CLCINC I/O pin
bit 7 Unimplemented: Read as ‘0’
bit 6-4 DS2<2:0>: Data Selection MUX 2 Signal Selection bits
111 = SCCP2 OC (CCP2IF) out
110 = SCCP1 OC (CCP1IF) out
101 = Reserved
100 = Reserved
011 = UART1 TX input corresponding to CLCx module
010 = Comparator 1 output
001 = Reserved
000 = CLCINB I/O pin
bit 3 Unimplemented: Read as ‘0’
Note 1: Valid only when SPI is used on PPS.
2017-2018 Microchip Technology Inc. DS70005349E-page 453
dsPIC33CK256MP508 FAMILY
bit 2-0 DS1<2:0>: Data Selection MUX 1 Signal Selection bits
111 = SCCP4 auxiliary out
110 = SCCP2 auxiliary out
101 = Reserved
100 = REFCLKO output
011 = INTRC/LPRC clock source
010 = CLC3 out
001 = System clock (FCY)
000 = CLCINA I/O pin
REGISTER 23-3: CLCxSEL: CLCx INPUT MUX SELECT REGISTER (CONTINUED)
Note 1: Valid only when SPI is used on PPS.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 454 2017-2018 Microchip Technology Inc.
REGISTER 23-4: CLCxGLSL: CLCx GATE LOGIC INPUT SELECT LOW REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
G2D4T G2D4N G2D3T G2D3N G2D2T G2D2N G2D1T G2D1N
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
G1D4T G1D4N G1D3T G1D3N G1D2T G1D2N G1D1T G1D1N
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 G2D4T: Gate 2 Data Source 4 True Enable bit
1 = Data Source 4 signal is enabled for Gate 2
0 = Data Source 4 signal is disabled for Gate 2
bit 14 G2D4N: Gate 2 Data Source 4 Negated Enable bit
1 = Data Source 4 inverted signal is enabled for Gate 2
0 = Data Source 4 inverted signal is disabled for Gate 2
bit 13 G2D3T: Gate 2 Data Source 3 True Enable bit
1 = Data Source 3 signal is enabled for Gate 2
0 = Data Source 3 signal is disabled for Gate 2
bit 12 G2D3N: Gate 2 Data Source 3 Negated Enable bit
1 = Data Source 3 inverted signal is enabled for Gate 2
0 = Data Source 3 inverted signal is disabled for Gate 2
bit 11 G2D2T: Gate 2 Data Source 2 True Enable bit
1 = Data Source 2 signal is enabled for Gate 2
0 = Data Source 2 signal is disabled for Gate 2
bit 10 G2D2N: Gate 2 Data Source 2 Negated Enable bit
1 = Data Source 2 inverted signal is enabled for Gate 2
0 = Data Source 2 inverted signal is disabled for Gate 2
bit 9 G2D1T: Gate 2 Data Source 1 True Enable bit
1 = Data Source 1 signal is enabled for Gate 2
0 = Data Source 1 signal is disabled for Gate 2
bit 8 G2D1N: Gate 2 Data Source 1 Negated Enable bit
1 = Data Source 1 inverted signal is enabled for Gate 2
0 = Data Source 1 inverted signal is disabled for Gate 2
bit 7 G1D4T: Gate 1 Data Source 4 True Enable bit
1 = Data Source 4 signal is enabled for Gate 1
0 = Data Source 4 signal is disabled for Gate 1
bit 6 G1D4N: Gate 1 Data Source 4 Negated Enable bit
1 = Data Source 4 inverted signal is enabled for Gate 1
0 = Data Source 4 inverted signal is disabled for Gate 1
bit 5 G1D3T: Gate 1 Data Source 3 True Enable bit
1 = Data Source 3 signal is enabled for Gate 1
0 = Data Source 3 signal is disabled for Gate 1
bit 4 G1D3N: Gate 1 Data Source 3 Negated Enable bit
1 = Data Source 3 inverted signal is enabled for Gate 1
0 = Data Source 3 inverted signal is disabled for Gate 1
2017-2018 Microchip Technology Inc. DS70005349E-page 455
dsPIC33CK256MP508 FAMILY
bit 3 G1D2T: Gate 1 Data Source 2 True Enable bit
1 = Data Source 2 signal is enabled for Gate 1
0 = Data Source 2 signal is disabled for Gate 1
bit 2 G1D2N: Gate 1 Data Source 2 Negated Enable bit
1 = Data Source 2 inverted signal is enabled for Gate 1
0 = Data Source 2 inverted signal is disabled for Gate 1
bit 1 G1D1T: Gate 1 Data Source 1 True Enable bit
1 = Data Source 1 signal is enabled for Gate 1
0 = Data Source 1 signal is disabled for Gate 1
bit 0 G1D1N: Gate 1 Data Source 1 Negated Enable bit
1 = Data Source 1 inverted signal is enabled for Gate 1
0 = Data Source 1 inverted signal is disabled for Gate 1
REGISTER 23-4: CLCxGLSL: CLCx GATE LOGIC INPUT SELECT LOW REGISTER (CONTINUED)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 456 2017-2018 Microchip Technology Inc.
REGISTER 23-5: CLCxGLSH: CLCx GATE LOGIC INPUT SELECT HIGH REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
G4D4T G4D4N G4D3T G4D3N G4D2T G4D2N G4D1T G4D1N
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
G3D4T G3D4N G3D3T G3D3N G3D2T G3D2N G3D1T G3D1N
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 G4D4T: Gate 4 Data Source 4 True Enable bit
1 = Data Source 4 signal is enabled for Gate 4
0 = Data Source 4 signal is disabled for Gate 4
bit 14 G4D4N: Gate 4 Data Source 4 Negated Enable bit
1 = Data Source 4 inverted signal is enabled for Gate 4
0 = Data Source 4 inverted signal is disabled for Gate 4
bit 13 G4D3T: Gate 4 Data Source 3 True Enable bit
1 = Data Source 3 signal is enabled for Gate 4
0 = Data Source 3 signal is disabled for Gate 4
bit 12 G4D3N: Gate 4 Data Source 3 Negated Enable bit
1 = Data Source 3 inverted signal is enabled for Gate 4
0 = Data Source 3 inverted signal is disabled for Gate 4
bit 11 G4D2T: Gate 4 Data Source 2 True Enable bit
1 = Data Source 2 signal is enabled for Gate 4
0 = Data Source 2 signal is disabled for Gate 4
bit 10 G4D2N: Gate 4 Data Source 2 Negated Enable bit
1 = Data Source 2 inverted signal is enabled for Gate 4
0 = Data Source 2 inverted signal is disabled for Gate 4
bit 9 G4D1T: Gate 4 Data Source 1 True Enable bit
1 = Data Source 1 signal is enabled for Gate 4
0 = Data Source 1 signal is disabled for Gate 4
bit 8 G4D1N: Gate 4 Data Source 1 Negated Enable bit
1 = Data Source 1 inverted signal is enabled for Gate 4
0 = Data Source 1 inverted signal is disabled for Gate 4
bit 7 G3D4T: Gate 3 Data Source 4 True Enable bit
1 = Data Source 4 signal is enabled for Gate 3
0 = Data Source 4 signal is disabled for Gate 3
bit 6 G3D4N: Gate 3 Data Source 4 Negated Enable bit
1 = Data Source 4 inverted signal is enabled for Gate 3
0 = Data Source 4 inverted signal is disabled for Gate 3
bit 5 G3D3T: Gate 3 Data Source 3 True Enable bit
1 = Data Source 3 signal is enabled for Gate 3
0 = Data Source 3 signal is disabled for Gate 3
bit 4 G3D3N: Gate 3 Data Source 3 Negated Enable bit
1 = Data Source 3 inverted signal is enabled for Gate 3
0 = Data Source 3 inverted signal is disabled for Gate 3
2017-2018 Microchip Technology Inc. DS70005349E-page 457
dsPIC33CK256MP508 FAMILY
bit 3 G3D2T: Gate 3 Data Source 2 True Enable bit
1 = Data Source 2 signal is enabled for Gate 3
0 = Data Source 2 signal is disabled for Gate 3
bit 2 G3D2N: Gate 3 Data Source 2 Negated Enable bit
1 = Data Source 2 inverted signal is enabled for Gate 3
0 = Data Source 2 inverted signal is disabled for Gate 3
bit 1 G3D1T: Gate 3 Data Source 1 True Enable bit
1 = Data Source 1 signal is enabled for Gate 3
0 = Data Source 1 signal is disabled for Gate 3
bit 0 G3D1N: Gate 3 Data Source 1 Negated Enable bit
1 = Data Source 1 inverted signal is enabled for Gate 3
0 = Data Source 1 inverted signal is disabled for Gate 3
REGISTER 23-5: CLCxGLSH: CLCx GATE LOGIC INPUT SELECT HIGH REGISTER (CONTINUED)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 458 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 459
dsPIC33CK256MP508 FAMILY
24.0 PERIPHERAL TRIGGER
GENERATOR (PTG)
The dsPIC33CK256MP508 family Peripheral Trigger
Generator (PTG) module is a user-programmable
sequencer that is capable of generating complex
trigger signal sequences to coordinate the operation of
other peripherals. The PTG module is designed to
interface with the modules, such as an Analog-to-
Digital Converter (ADC), output compare and PWM
modules, timers and interrupt controllers.
24.1 Features
• Behavior is Step Command Driven:
- Step commands are eight bits wide
• Commands are Stored in a Step Queue:
- Queue depth is up to 32 entries
- Programmable Step execution time (Step delay)
• Supports the Command Sequence Loop:
- Can be nested one-level deep
- Conditional or unconditional loop
- Two 16-bit loop counters
• 15 Hardware Input Triggers:
- Sensitive to either positive or negative edges,
or a high or low level
• One Software Input Trigger
• Generates up to 32 Unique Output Trigger
Signals
• Generates Two Types of Trigger Outputs:
- Individual
- Broadcast
• Strobed Output Port for Literal Data Values:
- 5-bit literal write (literal part of a command)
- 16-bit literal write (literal held in the PTGL0
register)
• Generates up to Ten Unique Interrupt Signals
• Two 16-Bit General Purpose Timers
• Flexible Self-Contained Watchdog Timer (WDT)
to Set an Upper Limit to Trigger Wait Time
• Single Step Command Capability in Debug mode
• Selectable Clock (System, Pulse-Width Modulator
(PWM) or ADC)
• Programmable Clock Divider
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to “Peripheral Trigger
Generator (PTG)” (www.microchip.com/
DS70000669) in the “dsPIC33/PIC24
Family Reference Manual”.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 460 2017-2018 Microchip Technology Inc.
FIGURE 24-1: PTG BLOCK DIAGRAM
16-Bit Data Bus
PTGQPTR<4:0>
Command
Decoder
PTGHOLD
PTGADJ
PTG Watchdog
Timer(1)
PTG Control Logic
PTGWDTIF
PTG General
Purpose
Timer x
PTG Loop
Counter x
Clock Inputs
PTGCLK0
PTGCLK<2:0>
PTGL0<15:0> PTGTxLIM<15:0>
PTGCxLIM<15:0>
PTGBTE<31:0>
(2)
PTGO0
PTGSDLIM<15:0>
PTG Step
Delay Timer
PTGQUE0
PTGQUE1
PTGQUE2
PTGQUE3
PTGQUE5
PTGQUE4
PTGQUE6
PTGQUE7
PTGCST<15:0>
PTGCON<15:0>
PTG Interrupts Trigger Outputs
Strobe Output<15:0>
Step Command
Step Command
PTGSTEPIF
Trigger Inputs
PTGO31
•
•
•
PTG0IF
PTG7IF
•
•
•
Step Command
Step Command
PTGDIV<4:0>
...
PTGQUE15
Note 1: This is a dedicated Watchdog Timer for the PTG module and is independent of the device Watchdog Timer.
2: Some devices support only PTGBTE<15:0> (16 outputs).
PTGCLK7
PTGI0
PTGI15
•
•
•
•
•
•
2017-2018 Microchip Technology Inc. DS70005349E-page 461
dsPIC33CK256MP508 FAMILY
24.2 PTG Registers
REGISTER 24-1: PTGCST: PTG CONTROL/STATUS LOW REGISTER
R/W-0 U-0 R/W-0 R/W-0 U-0 HC/R/W-0 R/W-0 R/W-0
PTGEN — PTGSIDL PTGTOGL —PTGSWT
(2)PTGSSEN(3)PTGIVIS
bit 15 bit 8
HC/R/W-0 HS/R/W-0 HS/HC/R/W-0 U-0 U-0 U-0 R/W-0 R/W-0
PTGSTRT PTGWDTO PTGBUSY — — —PTGITM1
(1)PTGITM0(1)
bit 7 bit 0
Legend: HC = Hardware Clearable bit HS = Hardware Settable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 PTGEN: PTG Enable bit
1 = PTG is enabled
0 = PTG is disabled
bit 14 Unimplemented: Read as ‘0’
bit 13 PTGSIDL: PTG Freeze in Debug Mode bit
1 = Halts PTG operation when device is Idle
0 = PTG operation continues when device is Idle
bit 12 PTGTOGL: PTG Toggle Trigger Output bit
1 = Toggles state of TRIG output for each execution of PTGTRIG
0 = Generates a single TRIG pulse for each execution of PTGTRIG
bit 11 Unimplemented: Read as ‘0’
bit 10 PTGSWT: PTG Software Trigger bit(2)
1 = Toggles state of TRIG output for each execution of PTGTRIG
0 = Generates a single TRIG pulse for each execution of PTGTRIG
bit 9 PTGSSEN: PTG Single-Step Command bit(3)
1 = Enables single Step when in Debug mode
0 = Disables single Step
bit 8 PTGIVIS: PTG Counter/Timer Visibility bit
1 = Reading the PTGSDLIM, PTGCxLIM or PTGTxLIM registers returns the current values of their
corresponding Counter/Timer registers (PTGSDLIM, PTGCxLIM and PTGTxLIM)
0 = Reading the PTGSDLIM, PTGCxLIM or PTGTxLIM registers returns the value of these Limit registers
bit 7 PTGSTRT: PTG Start Sequencer bit
1 = Starts to sequentially execute the commands (Continuous mode)
0 = Stops executing the commands
bit 6 PTGWDTO: PTG Watchdog Timer Time-out Status bit
1 = PTG Watchdog Timer has timed out
0 = PTG Watchdog Timer has not timed out
bit 5 PTGBUSY: PTG State Machine Busy bit
1 = PTG is running on the selected clock source; no SFR writes are allowed to PTGCLK<2:0> or
PTGDIV<4:0>
0 = PTG state machine is not running
Note 1: These bits apply to the PTGWHI and PTGWLO commands only.
2: This bit is only used with the PTGCTRL Step command software trigger option.
3: The PTGSSEN bit may only be written when in Debug mode.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 462 2017-2018 Microchip Technology Inc.
bit 4-2 Unimplemented: Read as ‘0’
bit 1-0 PTGITM<1:0>: PTG Input Trigger Operation Selection bit(1)
11 = Single-level detect with Step delay not executed on exit of command (regardless of the PTGCTRL
command) (Mode 3)
10 = Single-level detect with Step delay executed on exit of command (Mode 2)
01 = Continuous edge detect with Step delay not executed on exit of command (regardless of the
PTGCTRL command) (Mode 1)
00 = Continuous edge detect with Step delay executed on exit of command (Mode 0)
REGISTER 24-1: PTGCST: PTG CONTROL/STATUS LOW REGISTER (CONTINUED)
Note 1: These bits apply to the PTGWHI and PTGWLO commands only.
2: This bit is only used with the PTGCTRL Step command software trigger option.
3: The PTGSSEN bit may only be written when in Debug mode.
2017-2018 Microchip Technology Inc. DS70005349E-page 463
dsPIC33CK256MP508 FAMILY
REGISTER 24-2: PTGCON: PTG CONTROL/STATUS HIGH REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGCLK2 PTGCLK1 PTGCLK0 PTGDIV4 PTGDIV3 PTGDIV2 PTGDIV1 PTGDIV0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0
PTGPWD3 PTGPWD2 PTGPWD1 PTGPWD0 — PTGWDT2 PTGWDT1 PTGWDT0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 PTGCLK<2:0>: PTG Module Clock Source Selection bits
111 = CLC1
110 = PLL VCO DIV 4 output
101 = PTG module clock source will be SCCP7
100 = PTG module clock source will be SCCP8
011 = Input from Timer1 Clock pin, T1CK
010 = PTG module clock source will be ADC clock
001 = PTG module clock source will be FOSC
000 = PTG module clock source will be FOSC/2 (FP)
bit 12-8 PTGDIV<4:0>: PTG Module Clock Prescaler (Divider) bits
11111 = Divide-by-32
11110 = Divide-by-31
...
00001 = Divide-by-2
00000 = Divide-by-1
bit 7-4 PTGPWD<3:0>: PTG Trigger Output Pulse-Width (in PTG clock cycles) bits
1111 = All trigger outputs are 16 PTG clock cycles wide
1110 = All trigger outputs are 15 PTG clock cycles wide
...
0001 = All trigger outputs are 2 PTG clock cycles wide
0000 = All trigger outputs are 1 PTG clock cycle wide
bit 3 Unimplemented: Read as ‘0’
bit 2-0 PTGWDT<2:0>: PTG Watchdog Timer Time-out Selection bits
111 = Watchdog Timer will time out after 512 PTG clocks
110 = Watchdog Timer will time out after 256 PTG clocks
101 = Watchdog Timer will time out after 128 PTG clocks
100 = Watchdog Timer will time out after 64 PTG clocks
011 = Watchdog Timer will time out after 32 PTG clocks
010 = Watchdog Timer will time out after 16 PTG clocks
001 = Watchdog Timer will time out after 8 PTG clocks
000 = Watchdog Timer is disabled
dsPIC33CK256MP508 FAMILY
DS70005349E-page 464 2017-2018 Microchip Technology Inc.
REGISTER 24-3: PTGBTE: PTG BROADCAST TRIGGER ENABLE LOW REGISTER(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGBTE<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGBTE<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PTGBTE<15:0>: PTG Broadcast Trigger Enable bits
1 = Generates trigger when the broadcast command is executed
0 = Does not generate trigger when the broadcast command is executed
Note 1: These bits are read-only when the module is executing Step commands.
REGISTER 24-4: PTGBTEH: PTG BROADCAST TRIGGER ENABLE HIGH REGISTER(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGBTE<31:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGBTE<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PTGBTE<31:16>: PTG Broadcast Trigger Enable bits
1 = Generates trigger when the broadcast command is executed
0 = Does not generate trigger when the broadcast command is executed
Note 1: These bits are read-only when the module is executing Step commands.
2017-2018 Microchip Technology Inc. DS70005349E-page 465
dsPIC33CK256MP508 FAMILY
REGISTER 24-5: PTGHOLD: PTG HOLD REGISTER(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGHOLD<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGHOLD<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PTGHOLD<15:0>: PTG General Purpose Hold Register bits
This register holds the user-supplied data to be copied to the PTGTxLIM, PTGCxLIM, PTGSDLIM or
PTGL0 register using the PTGCOPY command.
Note 1: These bits are read-only when the module is executing Step commands.
REGISTER 24-6: PTGT0LIM: PTG TIMER0 LIMIT REGISTER(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGT0LIM<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGT0LIM<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PTGT0LIM<15:0>: PTG Timer0 Limit Register bits
General Purpose Timer0 Limit register.
Note 1: These bits are read-only when the module is executing Step commands.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 466 2017-2018 Microchip Technology Inc.
REGISTER 24-7: PTGT1LIM: PTG TIMER1 LIMIT REGISTER(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGT1LIM<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGT1LIM<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PTGT1LIM<15:0>: PTG Timer1 Limit Register bits
General Purpose Timer1 Limit register.
Note 1: These bits are read-only when the module is executing Step commands.
REGISTER 24-8: PTGSDLIM: PTG STEP DELAY LIMIT REGISTER(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGSDLIM<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGSDLIM<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PTGSDLIM<15:0>: PTG Step Delay Limit Register bits
This register holds a PTG Step delay value representing the number of additional PTG clocks between
the start of a Step command and the completion of a Step command.
Note 1: These bits are read-only when the module is executing Step commands.
2017-2018 Microchip Technology Inc. DS70005349E-page 467
dsPIC33CK256MP508 FAMILY
REGISTER 24-9: PTGC0LIM: PTG COUNTER 0 LIMIT REGISTER(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGC0LIM<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGC0LIM<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PTGC0LIM<15:0>: PTG Counter 0 Limit Register bits
This register is used to specify the loop count for the PTGJMPC0 Step command or as a Limit register
for the General Purpose Counter 0.
Note 1: These bits are read-only when the module is executing Step commands.
REGISTER 24-10: PTGC1LIM: PTG COUNTER 1 LIMIT REGISTER(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGC1LIM<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGC1LIM<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PTGC1LIM<15:0>: PTG Counter 1 Limit Register bits
This register is used to specify the loop count for the PTGJMPC1 Step command or as a Limit register
for the General Purpose Counter 1.
Note 1: These bits are read-only when the module is executing step commands.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 468 2017-2018 Microchip Technology Inc.
REGISTER 24-11: PTGADJ: PTG ADJUST REGISTER(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGADJ<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGADJ<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PTGADJ<15:0>: PTG Adjust Register bits
This register holds the user-supplied data to be added to the PTGTxLIM, PTGCxLIM, PTGSDLIM or
PTGL0 register using the PTGADD command.
Note 1: These bits are read-only when the module is executing Step commands.
REGISTER 24-12: PTGL0: PTG LITERAL 0 REGISTER(1,2)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGL0<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTGL0<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PTGL0<15:0>: PTG Literal 0 Register bits
This register holds the 6-bit value to be written to the CNVCHSEL<5:0> bits (ADCON3L<5:0>) with
the PTGCTRL Step command.
Note 1: These bits are read-only when the module is executing Step commands.
2: The PTG strobe output is typically connected to the ADC Channel Select register. This allows the PTG to
directly control ADC channel switching. See the specific device data sheet for connections of the PTG
output.
2017-2018 Microchip Technology Inc. DS70005349E-page 469
dsPIC33CK256MP508 FAMILY
REGISTER 24-13: PTGQPTR: PTG STEP QUEUE POINTER REGISTER(1)
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — —PTGQPTR<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-5 Unimplemented: Read as ‘0’
bit 4-0 PTGQPTR<4:0>: PTG Step Queue Pointer Register bits
This register points to the currently active Step command in the Step queue.
Note 1: These bits are read-only when the module is executing step commands.
REGISTER 24-14: PTGQUEn: PTG STEP QUEUE n POINTER REGISTER (n = 0-15)(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
STEP2n+1<7:0>(2)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
STEP2n<7:0>(2)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 STEP2n+1<7:0>: PTG Command 4n+1 bits(2)
A queue location for storage of the STEP2n+1 command byte, where ‘n’ is from PTGQUEn.
bit STEP2n<7:0>: PTG Command 4n+2 bits(2)
A queue location for storage of the STEP2n command byte, where ‘n’ is the odd numbered Step
Queue Pointers.
Note 1: These bits are read-only when the module is executing Step commands.
2: Refer to Table 24-1 for the Step command encoding.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 470 2017-2018 Microchip Technology Inc.
TABLE 24-1: PTG STEP COMMAND FORMAT AND DESCRIPTION
Step Command Byte
STEPx<7:0>
CMD<3:0> OPTION<3:0>
bit 7 bit 4 bit 3 bit 0
bit 7-4 Step
Command CMD<3:0> Command Description
PTGCTRL 0000 Execute the control command as described by the OPTION<3:0> bits.
PTGADD 0001 Add contents of the PTGADJ register to the target register as described by the
OPTION<3:0> bits.
PTGCOPY Copy contents of the PTGHOLD register to the target register as described by
the OPTION<3:0> bits.
PTGSTRB 001x Copy the values contained in the bits, CMD<0>:OPTION<3:0> to the strobe
output bits <4:0>.
PTGWHI 0100 Wait for a low-to-high edge input from a selected PTG trigger input as
described by the OPTION<3:0> bits.
PTGWLO 0101 Wait for a high-to-low edge input from a selected PTG trigger input as
described by the OPTION<3:0> bits.
—0110 Reserved; do not use.(1)
PTGIRQ 0111 Generate individual interrupt request as described by the OPTION<3:0> bits.
PTGTRIG 100x Generate individual trigger output as described by the bits,
CMD<0>:OPTION<3:0>.
PTGJMP 101x Copy the values contained in the bits, CMD<0>:OPTION<3:0> to the
PTGQPTR register, and jump to that Step queue.
PTGJMPC0 110x PTGC0 = PTGC0LIM: Increment the PTGQPTR register.
PTGC0 PTGC0LIM: Increment Counter 0 (PTGC0) and copy the values
contained in the bits, CMD<0>:OPTION<3:0> to the PTGQPTR register, and
jump to that Step queue.
PTGJMPC1 111x PTGC1 = PTGC1LIM: Increment the PTGQPTR register.
PTGC1 PTGC1LIM: Increment Counter 1 (PTGC1) and copy the values
contained in the bits, CMD<0>:OPTION<3:0> to the PTGQPTR register, and
jump to that Step queue.
Note 1: All reserved commands or options will execute, but they do not have any affect (i.e., execute as a NOP
instruction).
2017-2018 Microchip Technology Inc. DS70005349E-page 471
dsPIC33CK256MP508 FAMILY
TABLE 24-2: PTG COMMAND OPTIONS
bit 3-0 Step
Command OPTION<3:0> Command Description
PTGCTRL(1)0000 NOP.
0001 Reserved; do not use.
0010 Disable Step delay timer (PTGSD).
0011 Reserved; do not use.
0100 Reserved; do not use.
0101 Reserved; do not use.
0110 Enable Step delay timer (PTGSD).
0111 Reserved; do not use.
1000 Start and wait for the PTG Timer0 to match the PTGT0LIM register.
1001 Start and wait for the PTG Timer1 to match the PTGT1LIM register.
1010 Wait for the software trigger (level, PTGSWT = 1).
1011 Wait for the software trigger (positive edge, PTGSWT = 0 to 1).
1100 Copy the PTGC0LIM register contents to the strobe output.
1101 Copy the PTGC1LIM register contents to the strobe output.
1110 Copy the PTGL0 register contents to the strobe output.
1111 Generate the triggers indicated in the PTGBTE register.
PTGADD(1)0000 Add the PTGADJ register contents to the PTGC0LIM register.
0001 Add the PTGADJ register contents to the PTGC1LIM register.
0010 Add the PTGADJ register contents to the PTGT0LIM register.
0011 Add the PTGADJ register contents to the PTGT1LIM register.
0100 Add the PTGADJ register contents to the PTGSDLIM register.
0101 Add the PTGADJ register contents to the PTGL0 register.
0110 Reserved; do not use.
0111 Reserved; do not use.
PTGCOPY(1)1000 Copy the PTGHOLD register contents to the PTGC0LIM register.
1001 Copy the PTGHOLD register contents to the PTGC1LIM register.
1010 Copy the PTGHOLD register contents to the PTGT0LIM register.
1011 Copy the PTGHOLD register contents to the PTGT1LIM register.
1100 Copy the PTGHOLD register contents to the PTGSDLIM register.
1101 Copy the PTGHOLD register contents to the PTGL0 register.
1110 Reserved; do not use.
1111 Reserved; do not use.
Note 1: All reserved commands or options will execute, but they do not have any affect (i.e., execute as a NOP
instruction).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 472 2017-2018 Microchip Technology Inc.
bit 3-0 Step
Command OPTION<3:0> Option Description
PTGWHI(1)
or
PTGWLO(1)
0000 PTGI0 (see Tab l e 24-3 for input assignments).
•
•
•
•
•
•
1111 PTGI15 (see Table 24-3 for input assignments).
PTGIRQ(1)0000 Generate PTG Interrupt 0.
•
•
•
•
•
•
0111 Generate PTG Interrupt 7.
1000 Reserved; do not use.
•
•
•
•
•
•
1111 Reserved; do not use.
PTGTRIG 00000 PTGO0 (see Ta bl e 24 - 4 for output assignments).
00001 PTGO1 (see Ta b l e 24 - 4 for output assignments).
•
•
•
•
•
•
11110 PTGO30 (see Ta b le 24-4 for output assignments).
11111 PTGO31 (see Ta b le 24-4 for output assignments).
PTGWHI(1)
or
PTGWLO(1)
0000 PTGI0 (see specific device data sheet for input assignments).
•
•
•
•
•
•
1111 PTGI15 (see specific device data sheet for input assignments).
PTGIRQ(1)0000 Generate PTG Interrupt 0 (see specific device data sheet for interrupt
assignments).
•
•
•
•
•
•
0111 Generate PTG Interrupt 7 (see specific device data sheet for interrupt
assignments).
1000 Reserved; do not use.
•
•
•
•
•
•
1111 Reserved; do not use.
PTGTRIG 00000 PTGO0 (see specific device data sheet for assignments).
00001 PTGO1 (see specific device data sheet for assignments).
TABLE 24-2: PTG COMMAND OPTIONS (CONTINUED)
Note 1: All reserved commands or options will execute, but they do not have any affect (i.e., execute as a NOP
instruction).
2017-2018 Microchip Technology Inc. DS70005349E-page 473
dsPIC33CK256MP508 FAMILY
TABLE 24-3: PTG INPUT DESCRIPTIONS
TABLE 24-4: PTG OUTPUT DESCRIPTIONS
PTG Input Number PTG Input Description
PTG Trigger Input 0 Trigger Input from PWM1 ADC Trigger 2
PTG Trigger Input 1 Trigger Input from PWM2 ADC Trigger 2
PTG Trigger Input 2 Trigger Input from PWM3 ADC Trigger 2
PTG Trigger Input 3 Trigger Input from PWM4 ADC Trigger 2
PTG Trigger Input 4 Trigger Input from PWM5 ADC Trigger 2
PTG Trigger Input 5 Trigger Input from PWM6 ADC Trigger 2
PTG Trigger Input 6 Trigger Input from PWM7 ADC Trigger 2
PTG Trigger Input 7 Trigger Input from SCCP4
PTG Trigger Input 8 Trigger Input from SCCP5
PTG Trigger Input 9 Trigger Input from Comparator 1
PTG Trigger Input 10 Trigger Input from Comparator 2
PTG Trigger Input 11 Trigger Input from Comparator 3
PTG Trigger Input 12 Trigger Input from CLC1
PTG Trigger Input 13 Trigger Input ADC Done Group Interrupt
PTG Trigger Input 14 Reserved
PTG Trigger Input 15 Trigger Input from INT2 PPS
PTG Output Number PTG Output Description
PTGO0 to PTGO11 Reserved
PTGO12 ADC TRGSRC<30>
PTGO13 to PTGO23 Reserved
PTGO24 PPS Output RP46
PTGO25 PPS Output RP47
PTGO26 PPS Input RP6
PTGO27 PPS Input RP7
PTGO28 to PTGO31 Reserved
dsPIC33CK256MP508 FAMILY
DS70005349E-page 474 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 475
dsPIC33CK256MP508 FAMILY
25.0 32-BIT PROGRAMMABLE
CYCLIC REDUNDANCY CHECK
(CRC) GENERATOR
The 32-bit programmable CRC generator provides a
hardware implemented method of quickly generating
checksums for various networking and security
applications. It offers the following features:
• User-Programmable CRC Polynomial Equation,
up to 32 Bits
• Programmable Shift Direction (little or big-endian)
• Independent Data and Polynomial Lengths
• Configurable Interrupt Output
• Data FIFO
A simple version of the CRC shift engine is displayed in
Figure 25-1.
FIGURE 25-1: CRC MODULE BLOCK DIAGRAM
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a com-
prehensive reference source. For more
information, refer to “32-Bit Programma-
ble Cyclic Redundancy Check (CRC)”
(www.microchip.com/DS30009729) in the
“dsPIC33/PIC24 Family Reference
Manual”.
CRC
Interrupt
Variable FIFO
(4x32, 8x16 or 16x8)
CRCDATH CRCDATL
Shift Buffer
CRC Shift Engine
CRCWDATH CRCWDATL
Shifter Clock
2 * FCY
LENDIAN
CRCISEL
1
0
FIFO Empty
Shift
Complete
1
0
dsPIC33CK256MP508 FAMILY
DS70005349E-page 476 2017-2018 Microchip Technology Inc.
25.1 Control Registers
REGISTER 25-1: CRCCONL: CRC CONTROL REGISTER LOW
R/W-0 U-0 R/W-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0 HSC/R-0
CRCEN — CSIDL VWORD4 VWORD3 VWORD2 VWORD1 VWORD0
bit 15 bit 8
HSC/R-0 HSC/R-1 R/W-0 HC/R/W-0 R/W-0 R/W-0 U-0 U-0
CRCFUL CRCMPT CRCISEL CRCGO LENDIAN MOD — —
bit 7 bit 0
Legend: HC = Hardware Clearable bit HSC = Hardware Settable/Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 CRCEN: CRC Enable bit
1 = Enables module
0 = Disables module
bit 14 Unimplemented: Read as ‘0’
bit 13 CSIDL: CRC Stop in Idle Mode bit
1 = Discontinues module operation when device enters Idle mode
0 = Continues module operation in Idle mode
bit 12-8 VWORD<4:0>: Pointer Value bits
Indicates the number of valid words in the FIFO. Has a maximum value of 8 when PLEN<4:0> 7 or
16 when PLEN<4:0> 7.
bit 7 CRCFUL: CRC FIFO Full bit
1 = FIFO is full
0 = FIFO is not full
bit 6 CRCMPT: CRC FIFO Empty bit
1 = FIFO is empty
0 = FIFO is not empty
bit 5 CRCISEL: CRC Interrupt Selection bit
1 = Interrupt on FIFO is empty; the final word of data is still shifting through the CRC
0 = Interrupt on shift is complete and results are ready
bit 4 CRCGO: CRC Start bit
1 = Starts CRC serial shifter
0 = CRC serial shifter is turned off
bit 3 LENDIAN: Data Shift Direction Select bit
1 = Data word is shifted into the FIFO, starting with the LSb (little-endian)
0 = Data word is shifted into the FIFO, starting with the MSb (big-endian)
bit 2 MOD: CRC Calculation Mode bit
1 = Alternate mode
0 = Legacy mode bit
bit 1-0 Unimplemented: Read as ‘0’
2017-2018 Microchip Technology Inc. DS70005349E-page 477
dsPIC33CK256MP508 FAMILY
REGISTER 25-2: CRCCONH: CRC CONTROL REGISTER HIGH
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — DWIDTH4 DWIDTH3 DWIDTH2 DWIDTH1 DWIDTH0
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — PLEN4 PLEN3 PLEN2 PLEN1 PLEN0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 DWIDTH<4:0>: Data Word Width Configuration bits
Configures the width of the data word (Data Word Width – 1).
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 PLEN<4:0>: Polynomial Length Configuration bits
Configures the length of the polynomial (Polynomial Length – 1).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 478 2017-2018 Microchip Technology Inc.
REGISTER 25-3: CRCXORL: CRC XOR POLYNOMIAL REGISTER, LOW BYTE
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
X<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0
X<7:1> —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-1 X<15:1>: XOR of Polynomial Term xn Enable bits
bit 0 Unimplemented: Read as ‘0’
REGISTER 25-4: CRCXORH: CRC XOR POLYNOMIAL REGISTER, HIGH BYTE
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
X<31:24>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
X<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 X<31:16>: XOR of Polynomial Term xn Enable bits
2017-2018 Microchip Technology Inc. DS70005349E-page 479
dsPIC33CK256MP508 FAMILY
26.0 CURRENT BIAS GENERATOR
(CBG)
The Current Bias Generator (CBG) consists of two
classes of current sources: 10 μA and 50 μA sources.
The major features of each current source are:
•10μA Current Sources:
- Current sourcing only
- Up to four independent sources
•50μA Current Sources:
- Selectable current sourcing or sinking
- Selectable current mirroring for sourcing and
sinking
A simplified block diagram of the CBG module is
shown in Figure 26-1.
TABLE 26-1: CBG CHANNEL AVAILABILITY
FIGURE 26-1: CONSTANT-CURRENT SOURCE MODULE BLOCK DIAGRAM(2)
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a compre-
hensive reference source. To complement
the information in this data sheet, refer to
“Current Bias Generator (CBG)”
(www.microchip.com/DS70005253) in the
“dsPIC33/PIC24 Family Reference
Manual”.
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Table 26-1 for
CBG channel availability on package
variants. Package Type ISRCx IBIASx
28-pin — 0,3
36-pin 0,1 0,2,3
48-pin 0,1,2,3 0,1,2,3
64-pin 0,1,2,3 0,1,2,3
80-pin 0,1,2,3 0,1,2,3
Note 1: RESD is typically 300 Ohms; for more information, refer to the device data sheet.
2: In Figure 26-1 only, the ADC analog input is shown for clarity. Each analog peripheral connected to the pin has a
separate Electrostatic Discharge (ESD) resistor.
AVDD
ON
I10ENx
R
ESD
(1)
ISRCx
ADC
ADC
R
ESD
(1)
R
ESD
(1)
IBIASx
AVSS
AV
DD
10 µA Source 50 µA Source
ON
SRCENx
ON
SNKENx
dsPIC33CK256MP508 FAMILY
DS70005349E-page 480 2017-2018 Microchip Technology Inc.
26.1 Current Bias Generator Control Registers
REGISTER 26-1: BIASCON: CURRENT BIAS GENERATOR CONTROL REGISTER
R/W-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
ON — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — — I10EN3 I10EN2 I10EN1 I10EN0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ON: Current Bias Module Enable bit
1 = Module is enabled
0 = Module is disabled
bit 14-4 Unimplemented: Read as ‘0’
bit 3 I10EN3: 10 μA Enable for Output 3 bit
1 = 10 μA output is enabled
0 = 10 μA output is disabled
bit 2 I10EN2: 10 μA Enable for Output 2 bit
1 = 10 μA output is enabled
0 = 10 μA output is disabled
bit 1 I10EN1: 10 μA Enable for Output 1 bit
1 = 10 μA output is enabled
0 = 10 μA output is disabled
bit 0 I10EN0: 10 μA Enable for Output 0 bit
1 = 10 μA output is enabled
0 = 10 μA output is disabled
2017-2018 Microchip Technology Inc. DS70005349E-page 481
dsPIC33CK256MP508 FAMILY
REGISTER 26-2: IBIASCONH: CURRENT BIAS GENERATOR 50 μA CURRENT SOURCE
CONTROL HIGH REGISTER
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— SHRSRCEN3 SHRSNKEN3 GENSRCEN3 GENSNKEN3 SRCEN3 SNKEN3
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— SHRSRCEN2 SHRSNKEN2 GENSRCEN2 GENSNKEN2 SRCEN2 SNKEN2
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13 SHRSRCEN3: Share Source Enable for Output #3 bit
1 = Sourcing Current Mirror mode is enabled (uses reference from another source)
0 = Sourcing Current Mirror mode is disabled
bit 12 SHRSNKEN3: Share Sink Enable for Output #3 bit
1 = Sinking Current Mirror mode is enabled (uses reference from another source)
0 = Sinking Current Mirror mode is disabled
bit 11 GENSRCEN3: Generated Source Enable for Output #3 bit
1 = Source generates the current source mirror reference
0 = Source does not generate the current source mirror reference
bit 10 GENSNKEN3: Generated Sink Enable for Output #3 bit
1 = Source generates the current sink mirror reference
0 = Source does not generate the current sink mirror reference
bit 9 SRCEN3: Source Enable for Output #3 bit
1 = Current source is enabled
0 = Current source is disabled
bit 8 SNKEN3: Sink Enable for Output #3 bit
1 = Current sink is enabled
0 = Current sink is disabled
bit 7-6 Unimplemented: Read as ‘0’
bit 5 SHRSRCEN2: Share Source Enable for Output #2 bit
1 = Sourcing Current Mirror mode is enabled (uses reference from another source)
0 = Sourcing Current Mirror mode is disabled
bit 4 SHRSNKEN2: Share Sink Enable for Output #2 bit
1 = Sinking Current Mirror mode is enabled (uses reference from another source)
0 = Sinking Current Mirror mode is disabled
bit 3 GENSRCEN2: Generated Source Enable for Output #2 bit
1 = Source generates the current source mirror reference
0 = Source does not generate the current source mirror reference
bit 2 GENSNKEN2: Generated Sink Enable for Output #2 bit
1 = Source generates the current sink mirror reference
0 = Source does not generate the current sink mirror reference
bit 1 SRCEN2: Source Enable for Output #2 bit
1 = Current source is enabled
0 = Current source is disabled
bit 0 SNKEN2: Sink Enable for Output #2 bit
1 = Current sink is enabled
0 = Current sink is disabled
dsPIC33CK256MP508 FAMILY
DS70005349E-page 482 2017-2018 Microchip Technology Inc.
REGISTER 26-3: IBIASCONL: CURRENT BIAS GENERATOR 50 μA CURRENT SOURCE
CONTROL LOW REGISTER
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— SHRSRCEN1 SHRSNKEN1 GENSRCEN1 GENSNKEN1 SRCEN1 SNKEN1
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— SHRSRCEN0 SHRSNKEN0 GENSRCEN0 GENSNKEN0 SRCEN0 SNKEN0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13 SHRSRCEN1: Share Source Enable for Output #1 bit
1 = Sourcing Current Mirror mode is enabled (uses reference from another source)
0 = Sourcing Current Mirror mode is disabled
bit 12 SHRSNKEN1: Share Sink Enable for Output #1 bit
1 = Sinking Current Mirror mode is enabled (uses reference from another source)
0 = Sinking Current Mirror mode is disabled
bit 11 GENSRCEN1: Generated Source Enable for Output #1 bit
1 = Source generates the current source mirror reference
0 = Source does not generate the current source mirror reference
bit 10 GENSNKEN1: Generated Sink Enable for Output #1 bit
1 = Source generates the current sink mirror reference
0 = Source does not generate the current sink mirror reference
bit 9 SRCEN1: Source Enable for Output #1 bit
1 = Current source is enabled
0 = Current source is disabled
bit 8 SNKEN1: Sink Enable for Output #1 bit
1 = Current sink is enabled
0 = Current sink is disabled
bit 7-6 Unimplemented: Read as ‘0’
bit 5 SHRSRCEN0: Share Source Enable for Output #0 bit
1 = Sourcing Current Mirror mode is enabled (uses reference from another source)
0 = Sourcing Current Mirror mode is disabled
bit 4 SHRSNKEN0: Share Sink Enable for Output #0 bit
1 = Sinking Current Mirror mode is enabled (uses reference from another source)
0 = Sinking Current Mirror mode is disabled
bit 3 GENSRCEN0: Generated Source Enable for Output #0 bit
1 = Source generates the current source mirror reference
0 = Source does not generate the current source mirror reference
bit 2 GENSNKEN0: Generated Sink Enable for Output #0 bit
1 = Source generates the current sink mirror reference
0 = Source does not generate the current sink mirror reference
bit 1 SRCEN0: Source Enable for Output #0 bit
1 = Current source is enabled
0 = Current source is disabled
bit 0 SNKEN0: Sink Enable for Output #0 bit
1 = Current sink is enabled
0 = Current sink is disabled
2017-2018 Microchip Technology Inc. DS70005349E-page 483
dsPIC33CK256MP508 FAMILY
27.0 OPERATIONAL AMPLIFIER
The dsPIC33CK256MP508 family implements three
instances of operational amplifiers (op amps). The
op amps can be used for a wide variety of purposes,
including signal conditioning and filtering. The three
op amps are functionally identical. The block diagram
for a single amplifier is shown in Figure 27-1.
FIGURE 27-1: SINGLE OPERATIONAL
AMPLIFIER BLOCK
DIAGRAM
The op amps are controlled by two SFR registers:
AMPCON1L and AMPCON1H. They remain in a low-
power state until the AMPON bit is set. Each op amp
can then be enabled independently by setting the
corresponding AMPENx bit (x = 1, 2, 3).
The NCHDISx bit provides some flexibility regarding
input range verses Integral Nonlinearity (INL). When
NCHDISx = 0 (default), the op amps have a wider input
voltage range (see Table 33-41 in Section 33.0 “Elec-
trical Characteristics”). When NCHDISx = 1, the wider
input range is traded for improved INL performance
(lower INL).
Note: Some device variants support only
two op amp instances. Refer to Table 1
and Ta bl e 2 for availability.
OAxOUT
OAxIN-
OAxIN+
–
+
dsPIC33CK256MP508 FAMILY
DS70005349E-page 484 2017-2018 Microchip Technology Inc.
27.1 Operational Amplifier Control Registers
REGISTER 27-1: AMPCON1L: OP AMP CONTROL REGISTER LOW
R/W-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
AMPON — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
— — — — — AMPEN3 AMPEN2 AMPEN1
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 AMPON: Op Amp Enable/On bit
1 = Enables op amp modules if their respective AMPENx bits are also asserted
0 = Disables all op amp modules
bit 14-3 Unimplemented: Read as ‘0’
bit 2 AMPEN3: Op Amp #3 Enable bit
1 = Enables Op Amp #3 if the AMPON bit is also asserted
0 = Disables Op Amp #3
bit 1 AMPEN2: Op Amp #2 Enable bit
1 = Enables Op Amp #2 if the AMPON bit is also asserted
0 = Disables Op Amp #2
bit 0 AMPEN1: Op Amp #1 Enable bit
1 = Enables Op Amp #1 if the AMPON bit is also asserted
0 = Disables Op Amp #1
2017-2018 Microchip Technology Inc. DS70005349E-page 485
dsPIC33CK256MP508 FAMILY
REGISTER 27-2: AMPCON1H: OP AMP CONTROL REGISTER HIGH
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
— — — — — NCHDIS3 NCHDIS2 NCHDIS1
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-3 Unimplemented: Read as ‘0’
bit 2 NCHDIS3: Op Amp #3 N Channel Disable bit
1 = Disables Op Amp #3 N channels input stage; reduced INL, but lowered input voltage range
0 = Wide input range for Op Amp #3
bit 1 NCHDIS2: Op Amp #2 N Channel Disable bit
1 = Disables Op Amp #2 N channels input stage; reduced INL, but lowered input voltage range
0 = Wide input range for Op Amp #2
bit 0 NCHDIS1: Op Amp #1 N Channel Disable bit
1 = Disables Op Amp #1 N channels input stage; reduced INL, but lowered input voltage range
0 = Wide input range for Op Amp #1
dsPIC33CK256MP508 FAMILY
DS70005349E-page 486 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 487
dsPIC33CK256MP508 FAMILY
28.0 DEADMAN TIMER (DMT)
The primary function of the Deadman Timer (DMT) is to
interrupt the processor in the event of a software mal-
function. The DMT, which works on the system clock, is
a free-running instruction fetch timer, which is clocked
whenever an instruction fetch occurs, until a count
match occurs. Instructions are not fetched when the
processor is in Sleep mode.
DMT can be enabled in the Configuration fuse or by
software in the DMTCON register by setting the ON bit.
The DMT consists of a 32-bit counter with a time-out
count match value, as specified by the two 16-bit
Configuration Fuse registers: FDMTCNTL and
FDMTCNTH.
A DMT is typically used in mission-critical and safety-
critical applications, where any single failure of the
software functionality and sequencing must be
detected.
Figure 28-1 shows a block diagram of the Deadman
Timer module.
FIGURE 28-1: DEADMAN TIMER BLOCK DIAGRAM
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to “Deadman Timer (DMT)”
(www.microchip.com/DS70005155) in the
“dsPIC33/PIC24 Family Reference
Manual”.
32-Bit Counter
System Clock
DMT Event
Instruction Fetched Strobe
(2)
Improper Sequence
(Counter) = DMT Max Count(1)
Note 1: DMT Max Count is controlled by the initial value of the FDMTCNTL and FDMTCNTH Configuration registers.
2: DMT window interval is controlled by the value of the FDMTIVTL and FDMTIVTH Configuration registers.
Flag
DMT Enable
BAD1
BAD2
dsPIC33CK256MP508 FAMILY
DS70005349E-page 488 2017-2018 Microchip Technology Inc.
28.1 Deadman Timer Control Registers
REGISTER 28-1: DMTCON: DEADMAN TIMER CONTROL REGISTER
R/W-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
ON(1)— — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ON: DMT Module Enable bit(1)
1 = Deadman Timer module is enabled
0 = Deadman Timer module is not enabled
bit 14-0 Unimplemented: Read as ‘0’
Note 1: This bit has control only when DMTDIS = 0 in the FDMT register.
REGISTER 28-2: DMTPRECLR: DEADMAN TIMER PRECLEAR REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
STEP1<7:0>
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 STEP1<7:0>: DMT Preclear Enable bits
01000000 = Enables the Deadman Timer preclear (Step 1)
All Other
Write Patterns = Sets the BAD1 flag; these bits are cleared when a DMT Reset event occurs.
STEP1<7:0> bits are also cleared if the STEP2<7:0> bits are loaded with the correct
value in the correct sequence.
bit 7-0 Unimplemented: Read as ‘0’
2017-2018 Microchip Technology Inc. DS70005349E-page 489
dsPIC33CK256MP508 FAMILY
REGISTER 28-3: DMTCLR: DEADMAN TIMER CLEAR REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
STEP2<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-0 STEP2<7:0>: DMT Clear Timer bits
00001000 = Clears STEP1<7:0>, STEP2<7:0> and the Deadman Timer if preceded by the correct
loading of the STEP1<7:0> bits in the correct sequence. The write to these bits may be
verified by reading the DMTCNTL/H register and observing the counter being reset.
All Other
Write Patterns = Sets the BAD2 bit; the value of STEP1<7:0> will remain unchanged and the new
value being written to STEP2<7:0> will be captured. These bits are cleared when a
DMT Reset event occurs.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 490 2017-2018 Microchip Technology Inc.
REGISTER 28-4: DMTSTAT: DEADMAN TIMER STATUS REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
HC/R-0 HC/R-0 HC/R-0 U-0 U-0 U-0 U-0 R-0
BAD1 BAD2 DMTEVENT — — — —WINOPN
bit 7 bit 0
Legend: HC = Hardware Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7 BAD1: Deadman Timer Bad STEP1<7:0> Value Detect bit
1 = Incorrect STEP1<7:0> value was detected
0 = Incorrect STEP1<7:0> value was not detected
bit 6 BAD2: Deadman Timer Bad STEP2<7:0> Value Detect bit
1 = Incorrect STEP2<7:0> value was detected
0 = Incorrect STEP2<7:0> value was not detected
bit 5 DMTEVENT: Deadman Timer Event bit
1 = Deadman Timer event was detected (counter expired, or bad STEP1<7:0> or STEP2<7:0> value
was entered prior to counter increment)
0 = Deadman Timer event was not detected
bit 4-1 Unimplemented: Read as ‘0’
bit 0 WINOPN: Deadman Timer Clear Window bit
1 = Deadman Timer clear window is open
0 = Deadman Timer clear window is not open
2017-2018 Microchip Technology Inc. DS70005349E-page 491
dsPIC33CK256MP508 FAMILY
REGISTER 28-5: DMTCNTL: DEADMAN TIMER COUNT REGISTER LOW
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
COUNTER<15:8>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
COUNTER<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 COUNTER<15:0>: Read Current Contents of Lower DMT Counter bits
REGISTER 28-6: DMTCNTH: DEADMAN TIMER COUNT REGISTER HIGH
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
COUNTER<31:24>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
COUNTER<23:16>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 COUNTER<31:16>: Read Current Contents of Higher DMT Counter bits
dsPIC33CK256MP508 FAMILY
DS70005349E-page 492 2017-2018 Microchip Technology Inc.
REGISTER 28-7: DMTPSCNTL: DMT POST-CONFIGURE COUNT STATUS REGISTER LOW
R-y R-y R-y R-y R-y R-y R-y R-y
PSCNT<15:8>
bit 15 bit 8
Ry R-y R-y R-y R-y R-y R-y R-y
PSCNT<7:0>
bit 7 bit 0
Legend: y = Value from Configuration bit on POR
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PSCNT<15:0>: Lower DMT Instruction Count Value Configuration Status bits
This is always the value of the FDMTCNTL Configuration register.
REGISTER 28-8: DMTPSCNTH: DMT POST-CONFIGURE COUNT STATUS REGISTER HIGH
R-y R-y R-y R-y R-y R-y R-y R-y
PSCNT<31:24>
bit 15 bit 8
R-y R-y R-y R-y R-y R-y R-y R-y
PSCNT<23:16>
bit 7 bit 0
Legend: y = Value from Configuration bit on POR
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PSCNT<31:16>: Higher DMT Instruction Count Value Configuration Status bits
This is always the value of the FDMTCNTH Configuration register.
2017-2018 Microchip Technology Inc. DS70005349E-page 493
dsPIC33CK256MP508 FAMILY
REGISTER 28-9: DMTPSINTVL: DMT POST-CONFIGURE INTERVAL STATUS REGISTER LOW
R-y R-y R-y R-y R-y R-y R-y R-y
PSINTV<15:8>
bit 15 bit 8
R-y R-y R-y R-y R-y R-y R-y R-y
PSINTV<7:0>
bit 7 bit 0
Legend: y = Value from Configuration bit on POR
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PSINTV<15:0>: Lower DMT Window Interval Configuration Status bits
This is always the value of the FDMTIVTL Configuration register.
REGISTER 28-10: DMTPSINTVH: DMT POST-CONFIGURE INTERVAL STATUS REGISTER HIGH
R-y R-y R-y R-y R-y R-y R-y R-y
PSINTV<31:24>
bit 15 bit 8
R-y R-y R-y R-y R-y R-y R-y R-y
PSINTV<23:16>
bit 7 bit 0
Legend: y = Value from Configuration bit on POR
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PSINTV<31:16>: Higher DMT Window Interval Configuration Status bits
This is always the value of the FDMTIVTH Configuration register.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 494 2017-2018 Microchip Technology Inc.
REGISTER 28-11: DMTHOLDREG: DMT HOLD REGISTER(1)
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
UPRCNT<15:8>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
UPRCNT<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 UPRCNT<15:0>: DMTCNTH Register Value when DMTCNTL and DMTCNTH were Last Read bits
Note 1: The DMTHOLDREG register is initialized to ‘0’ on Reset, and is only loaded when the DMTCNTL and
DMTCNTH registers are read.
2017-2018 Microchip Technology Inc. DS70005349E-page 495
dsPIC33CK256MP508 FAMILY
29.0 POWER-SAVING FEATURES
The dsPIC33CK256MP508 family devices provide
the ability to manage power consumption by
selectively managing clocking to the CPU and the
peripherals. In general, a lower clock frequency and
a reduction in the number of peripherals being
clocked constitutes lower consumed power.
dsPIC33CK256MP508 family devices can manage
power consumption in four ways:
• Clock Frequency
• Instruction-Based Sleep and Idle modes
• Software-Controlled Doze mode
• Selective Peripheral Control in Software
Combinations of these methods can be used to
selectively tailor an application’s power consumption
while still maintaining critical application features, such
as timing-sensitive communications.
29.1 Clock Frequency and Clock
Switching
The dsPIC33CK256MP508 family devices allow a wide
range of clock frequencies to be selected under appli-
cation control. If the system clock configuration is not
locked, users can choose low-power or high-precision
oscillators by simply changing the NOSCx bits
(OSCCON<10:8>). The process of changing a system
clock during operation, as well as limitations to the
process, are discussed in more detail in Section 9.0
“Oscillator with High-Frequency PLL”.
29.2 Instruction-Based Power-Saving
Modes
The dsPIC33CK256MP508 family devices have two
special power-saving modes that are entered
through the execution of a special PWRSAV instruc-
tion. Sleep mode stops clock operation and halts all
code execution. Idle mode halts the CPU and code
execution, but allows peripheral modules to continue
operation. The assembler syntax of the PWRSAV
instruction is shown in Example 29-1.
Sleep and Idle modes can be exited as a result of an
enabled interrupt, WDT time-out or a device Reset. When
the device exits these modes, it is said to “wake-up”.
EXAMPLE 29-1: PWRSAV INSTRUCTION SYNTAX IN ASSEMBLY
EXAMPLE 29-2: PWRSAV INSTRUCTION SYNTAX IN C LANGUAGE
Note 1: This data sheet summarizes the
features of the dsPIC33CK256MP508
family of devices. It is not intended to be a
comprehensive reference source. To com-
plement the information in this data sheet,
refer to “Watchdog Timer and Power-
Saving Modes” (www.microchip.com/
DS70615) in the “dsPIC33/PIC24 Family
Reference Manual”.
Note: SLEEP_MODE and IDLE_MODE are con-
stants defined in the assembler include
file for the selected device.
PWRSAV #SLEEP_MODE ; Put the device into Sleep mode
PWRSAV #IDLE_MODE ; Put the device into Idle mode
Sleep() // Put the device into Sleep mode
Idle () // Put the device into Idle mode
dsPIC33CK256MP508 FAMILY
DS70005349E-page 496 2017-2018 Microchip Technology Inc.
29.2.1 SLEEP MODE
The following occurs in Sleep mode:
• The system clock source is shut down. If an
on-chip oscillator is used, it is turned off.
• The device current consumption is reduced to a
minimum, provided that no I/O pin is sourcing current.
• The Fail-Safe Clock Monitor does not operate,
since the system clock source is disabled.
• The LPRC clock continues to run in Sleep mode if
the WDT is enabled.
• The WDT, if enabled, is automatically cleared
prior to entering Sleep mode.
• Some device features or peripherals can continue
to operate. This includes items such as the Input
Change Notification on the I/O ports or peripherals
that use an External Clock input.
• Any peripheral that requires the system clock
source for its operation is disabled.
The device wakes up from Sleep mode on any of the
these events:
• Any interrupt source that is individually enabled
• Any form of device Reset
• A WDT time-out
On wake-up from Sleep mode, the processor restarts
with the same clock source that was active when Sleep
mode was entered.
For optimal power savings, the regulators can be
configured to go into standby when Sleep mode is
entered by clearing the VREGS (RCON<8>) bit (default
configuration).
If the application requires a faster wake-up time, and
can accept higher current requirements, the VREGS
(RCON<8>) bit can be set to keep the regulators active
during Sleep mode. The available Low-Power Sleep
modes are shown in Tab le 2 9 - 1 . Additional regulator
information is available in Section 30.4 “On-Chip
Voltage Regulators”.
TABLE 29-1: LOW-POWER SLEEP MODES
29.2.2 IDLE MODE
The following occurs in Idle mode:
• The CPU stops executing instructions.
• The WDT is automatically cleared.
• The system clock source remains active. By
default, all peripheral modules continue to operate
normally from the system clock source, but can
also be selectively disabled (see Section 29.4
“Peripheral Module Disable”).
• If the WDT or FSCM is enabled, the LPRC also
remains active.
The device wakes from Idle mode on any of these
events:
• Any interrupt that is individually enabled
• Any device Reset
• A WDT time-out
On wake-up from Idle mode, the clock is reapplied to
the CPU and instruction execution will begin (2-4 clock
cycles later), starting with the instruction following the
PWRSAV instruction or the first instruction in the ISR.
All peripherals also have the option to discontinue
operation when Idle mode is entered to allow for
increased power savings. This option is selectable in
the control register of each peripheral; for example, the
SIDL bit in the Timer1 Control register (T1CON<13>).
29.2.3 INTERRUPTS COINCIDENT WITH
POWER SAVE INSTRUCTIONS
Any interrupt that coincides with the execution of a
PWRSAV instruction is held off until entry into Sleep or
Idle mode has completed. The device then wakes up
from Sleep or Idle mode.
Relative
Power LPWREN VREGS MODE
Highest 01Full power, active
—00Full power, standby
—1(1)1Low power, active
Lowest 1(1)0Low power, standby
Note 1: Low-Power modes, when LPWREN = 1,
can only be used in the industrial
temperature range.
2017-2018 Microchip Technology Inc. DS70005349E-page 497
dsPIC33CK256MP508 FAMILY
29.3 Doze Mode
The preferred strategies for reducing power consump-
tion are changing clock speed and invoking one of the
power-saving modes. In some circumstances, this
cannot be practical. For example, it may be necessary
for an application to maintain uninterrupted synchro-
nous communication, even while it is doing nothing
else. Reducing system clock speed can introduce
communication errors, while using a power-saving
mode can stop communications completely.
Doze mode is a simple and effective alternative method
to reduce power consumption while the device is still
executing code. In this mode, the system clock
continues to operate from the same source and at the
same speed. Peripheral modules continue to be
clocked at the same speed, while the CPU clock speed
is reduced. Synchronization between the two clock
domains is maintained, allowing the peripherals to
access the SFRs while the CPU executes code at a
slower rate.
Doze mode is enabled by setting the DOZEN bit
(CLKDIV<11>). The ratio between peripheral and core
clock speed is determined by the DOZE<2:0> bits
(CLKDIV<14:12>). There are eight possible configu-
rations, from 1:1 to 1:128, with 1:1 being the default
setting.
Programs can use Doze mode to selectively reduce
power consumption in event-driven applications. This
allows clock-sensitive functions, such as synchronous
communications, to continue without interruption while
the CPU Idles, waiting for something to invoke an inter-
rupt routine. An automatic return to full-speed CPU
operation on interrupts can be enabled by setting the
ROI bit (CLKDIV<15>). By default, interrupt events
have no effect on Doze mode operation.
29.4 Peripheral Module Disable
The Peripheral Module Disable (PMD) registers
provide a method to disable a peripheral module by
stopping all clock sources supplied to that module.
When a peripheral is disabled using the appropriate
PMD control bit, the peripheral is in a minimum power
consumption state. The control and status registers
associated with the peripheral are also disabled, so
writes to those registers do not have any effect and
read values are invalid.
A peripheral module is enabled only if both the associ-
ated bit in the PMD register is cleared and the peripheral
is supported by the specific dsPIC® DSC variant. If the
peripheral is present in the device, it is enabled in the
PMD register by default.
29.5 Power-Saving Resources
Many useful resources are provided on the main prod-
uct page of the Microchip website for the devices listed
in this data sheet. This product page contains the latest
updates and additional information.
29.5.1 KEY RESOURCES
•“Watchdog Timer and Power-Saving Modes”
(DS70615) in the “dsPIC33/PIC24 Family
Reference Manual”
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related “dsPIC33/PIC24 Family Reference
Manual” Sections
• Development Tools
Note 1: If a PMD bit is set, the corresponding
module is disabled after a delay of one
instruction cycle. Similarly, if a PMD bit is
cleared, the corresponding module is
enabled after a delay of one instruction
cycle (assuming the module control reg-
isters are already configured to enable
module operation).
dsPIC33CK256MP508 FAMILY
DS70005349E-page 498 2017-2018 Microchip Technology Inc.
REGISTER 29-1: PMD1: PERIPHERAL MODULE DISABLE 1 CONTROL REGISTER
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 U-0
———— T1MD QEI1MD PWMMD —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0
I2C1MD U2MD U1MD SPI2MD SPI1MD —C1MD
(1)ADC1MD
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 Unimplemented: Read as ‘0’
bit 11 T1MD: Timer1 Module Disable bit
1 = Timer1 module is disabled
0 = Timer1 module is enabled
bit 10 QEI1MD: QEI1 Module Disable bit
1 = QEI1 module is disabled
0 = QEI1 module is enabled
bit 9 PWMMD: PWM Module Disable bit
1 = PWM module is disabled
0 = PWM module is enabled
bit 8 Unimplemented: Read as ‘0’
bit 7 I2C1MD: I2C1 Module Disable bit
1 = I2C1 module is disabled
0 = I2C1 module is enabled
bit 6 U2MD: UART2 Module Disable bit
1 = UART2 module is disabled
0 = UART2 module is enabled
bit 5 U1MD: UART1 Module Disable bit
1 = UART1 module is disabled
0 = UART1 module is enabled
bit 4 SPI2MD: SPI2 Module Disable bit
1 = SPI2 module is disabled
0 = SPI2 module is enabled
bit 3 SPI1MD: SPI1 Module Disable bit
1 = SPI1 module is disabled
0 = SPI1 module is enabled
bit 2 Unimplemented: Read as ‘0’
bit 1 C1MD: CAN1 Module Disable bit(1)
1 = CAN1 module is disabled
0 = CAN1 module is enabled
bit 0 ADC1MD: ADC Module Disable bit
1 = ADC module is disabled
0 = ADC module is enabled
Note 1: Availability is dependent on the supported peripherals, refer to Table 1 and Table 2.
2017-2018 Microchip Technology Inc. DS70005349E-page 499
dsPIC33CK256MP508 FAMILY
REGISTER 29-2: PMD2: PERIPHERAL MODULE DISABLE 2 CONTROL REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0
— — — — — — — CCP9MD
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CCP8MD CCP7MD CCP6MD CCP5MD CCP4MD CCP3MD CCP2MD CCP1MD
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-9 Unimplemented: Read as ‘0’
bit 8 CCP9MD: MCCP9 Module Disable bit
1 = MCCP9 module is disabled
0 = MCCP9 module is enabled
bit 7 CCP8MD: SCCP8 Module Disable bit
1 = SCCP8 module is disabled
0 = SCCP8 module is enabled
bit 6 CCP7MD: SCCP7 Module Disable bit
1 = SCCP7 module is disabled
0 = SCCP7 module is enabled
bit 5 CCP6MD: SCCP6 Module Disable bit
1 = SCCP6 module is disabled
0 = SCCP6 module is enabled
bit 4 CCP5MD: SCCP5 Module Disable bit
1 = SCCP5 module is disabled
0 = SCCP5 module is enabled
bit 3 CCP4MD: SCCP4 Module Disable bit
1 = SCCP4 module is disabled
0 = SCCP4 module is enabled
bit 2 CCP3MD: SCCP3 Module Disable bit
1 = SCCP3 module is disabled
0 = SCCP3 module is enabled
bit 1 CCP2MD: SCCP2 Module Disable bit
1 = SCCP2 module is disabled
0 = SCCP2 module is enabled
bit 0 CCP1MD: SCCP1 Module Disable bit
1 = SCCP1 module is disabled
0 = SCCP1 module is enabled
dsPIC33CK256MP508 FAMILY
DS70005349E-page 500 2017-2018 Microchip Technology Inc.
REGISTER 29-3: PMD3: PERIPHERAL MODULE DISABLE 3 CONTROL REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0
— — — — — — — PMPMD(1)
bit 15 bit 8
R/W-0 U-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 U-0
CRCMD —QEI2MD— U3MD I2C3MD I2C2MD —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-9 Unimplemented: Read as ‘0’
bit 8 PMPMD: PMP Module Disable bit(1)
1 = PMP module is disabled
0 = PMP module is enabled
bit 7 CRCMD: CRC Module Disable bit
1 = CRC module is disabled
0 = CRC module is enabled
bit 6 Unimplemented: Read as ‘0’
bit 5 QEI2MD: QEI2 Module Disable bit
1 = QEI2 module is disabled
0 = QEI2 module is enabled
bit 4 Unimplemented: Read as ‘0’
bit 3 U3MD: UART3 Module Disable bit
1 = UART3 module is disabled
0 = UART3 module is enabled
bit 2 I2C3MD: I2C3 Module Disable bit
1 = I2C3 module is disabled
0 = I2C3 module is enabled
bit 1 I2C2MD: I2C2 Module Disable bit
1 = I2C2 module is disabled
0 = I2C2 module is enabled
bit 0 Unimplemented: Read as ‘0’
Note 1: Availability is dependent on the supported peripherals, refer to Table 1 and Table 2.
2017-2018 Microchip Technology Inc. DS70005349E-page 501
dsPIC33CK256MP508 FAMILY
REGISTER 29-4: PMD4: PERIPHERAL MODULE DISABLE 4 CONTROL REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 R/W-0 U-0 U-0 U-0
————REFOMD— — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-4 Unimplemented: Read as ‘0’
bit 3 REFOMD: Reference Clock Module Disable bit
1 = Reference clock module is disabled
0 = Reference clock module is enabled
bit 2-0 Unimplemented: Read as ‘0’
dsPIC33CK256MP508 FAMILY
DS70005349E-page 502 2017-2018 Microchip Technology Inc.
REGISTER 29-5: PMD6: PERIPHERAL MODULE DISABLE 6 CONTROL REGISTER
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
———— DMA3MD DMA2MD DMA1MD DMA0MD
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0
— — — — — — — SPI3MD
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 Unimplemented: Read as ‘0’
bit 11 DMA3MD: DMA3 Module Disable bit
1 = DMA3 module is disabled
0 = DMA3 module is enabled
bit 10 DMA2MD: DMA2 Module Disable bit
1 = DMA2 module is disabled
0 = DMA2 module is enabled
bit 9 DMA1MD: DMA1 Module Disable bit
1 = DMA1 module is disabled
0 = DMA1 module is enabled
bit 8 DMA0MD: DMA0 Module Disable bit
1 = DMA0 module is disabled
0 = DMA0 module is enabled
bit 7-1 Unimplemented: Read as ‘0’
bit 0 SPI3MD: SPI3 Module Disable bit
1 = SPI3 module is disabled
0 = SPI3 module is enabled
2017-2018 Microchip Technology Inc. DS70005349E-page 503
dsPIC33CK256MP508 FAMILY
REGISTER 29-6: PMD7: PERIPHERAL MODULE DISABLE 7 CONTROL REGISTER
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
— — — — — CMP3MD CMP2MD CMP1MD
bit 15 bit 8
U-0 U-0 U-0 U-0 R/W-0 U-0 U-0 U-0
————PTGMD— — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 Unimplemented: Read as ‘0’
bit 10 CMP3MD: Comparator 3 Module Disable bit
1 = Comparator 3 module is disabled
0 = Comparator 3 module is enabled
bit 9 CMP2MD: Comparator 2 Module Disable bit
1 = Comparator 2 module is disabled
0 = Comparator 2 module is enabled
bit 8 CMP1MD: Comparator 1 Module Disable bit
1 = Comparator 1 module is disabled
0 = Comparator 1 module is enabled
bit 7-4 Unimplemented: Read as ‘0’
bit 3 PTGMD: PTG Module Disable bit
1 = PTG module is disabled
0 = PTG module is enabled
bit 2-0 Unimplemented: Read as ‘0’
dsPIC33CK256MP508 FAMILY
DS70005349E-page 504 2017-2018 Microchip Technology Inc.
REGISTER 29-7: PMD8: PERIPHERAL MODULE DISABLE 8 CONTROL REGISTER
U-0 U-0 R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-0
—— OPAMPMD SENT2MD SENT1MD ——DMTMD
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0
—— CLC4MD CLC3MD CLC2MD CLC1MD BIASMD —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13 OPAMPMD: Op Amp Module Disable bit
1 = Op amp modules are disabled
0 = Op amp modules are enabled
bit 12 SENT2MD: SENT2 Module Disable bit
1 = SENT2 module is disabled
0 = SENT2 module is enabled
bit 11 SENT1MD: SENT1 Module Disable bit
1 = SENT1 module is disabled
0 = SENT1 module is enabled
bit 10-9 Unimplemented: Read as ‘0’
bit 8 DMTMD: Deadman Timer Module Disable bit
1 = DMT module is disabled
0 = DMT module is enabled
bit 7-6 Unimplemented: Read as ‘0’
bit 5 CLC4MD: CLC4 Module Disable bit
1 = CLC4 module is disabled
0 = CLC4 module is enabled
bit 4 CLC3MD: CLC3 Module Disable bit
1 = CLC3 module is disabled
0 = CLC3 module is enabled
bit 3 CLC2MD: CLC2 Module Disable bit
1 = CLC2 module is disabled
0 = CLC2 module is enabled
bit 2 CLC1MD: CLC1 Module Disable bit
1 = CLC1 module is disabled
0 = CLC1 module is enabled
bit 1 BIASMD: Constant-Current Source Module Disable bit
1 = Constant-current source module is disabled
0 = Constant-current source module is enabled
bit 0 Unimplemented: Read as ‘0’
2017-2018 Microchip Technology Inc. DS70005349E-page 505
dsPIC33CK256MP508 FAMILY
TABLE 29-2: PMD REGISTERS
Register Bit 15 Bit14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
PMD1 — — — —T1MDQEIMDPWMMD— I2C1MD U2MD U1MD SPI2MD SPI1MD — C1MD ADC1MD
PMD2 — — — — — — — CCP9MD CCP8MD CCP7MD CCP6MD CCP5MD CCP4MD CCP3MD CCP2MD CCP1MD
PMD3 — — — — — — — PMPMD CRCMD —QEI2MD— U3MD I2C3MD I2C2MD —
PMD4 — — — — — — — — — — — —REFOMD— — —
PMD6 — — — — DMA3MD DMA2MD DMA1MD DMA0MD — — — — — — —SPI3MD
PMD7 — — — — — CMP3MD CMP2MD CMP1MD — — — —PTGMD— — —
PMD8 —— OPAMPMD SENT2MD SENT1MD ——DMTMD—— CLC4MD CLC3MD CLC2MD CLC1MD BIASMD —
dsPIC33CK256MP508 FAMILY
DS70005349E-page 506 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 507
dsPIC33CK256MP508 FAMILY
30.0 SPECIAL FEATURES
The dsPIC33CK256MP508 family devices include
several features intended to maximize application
flexibility and reliability, and minimize cost through
elimination of external components. These are:
• Flexible Configuration
• Watchdog Timer (WDT)
• Code Protection and CodeGuard™ Security
• JTAG Boundary Scan Interface
• In-Circuit Serial Programming™ (ICSP™)
• In-Circuit Emulation
• Brown-out Reset (BOR)
30.1 Configuration Bits
In dsPIC33CK256MP508 family devices, the Configura-
tion Words are implemented as volatile memory. This
means that configuration data will get loaded to volatile
memory (from the Flash Configuration Words) each time
the device is powered up. Configuration data is stored at
the end of the on-chip program memory space, known as
the Flash Configuration Words. Their specific locations
are shown in Table 30-1. The configuration data is auto-
matically loaded from the Flash Configuration Words to
the proper Configuration Shadow registers during device
Resets. The BSEQx bits (FBTSEQ<11:0>) determine
which panel is the Active Partition at start-up and the
Configuration Words from that panel are loaded into the
Configuration Shadow registers.
When creating applications for these devices, users
should always specifically allocate the location of the
Flash Configuration Words for configuration data in
their code for the compiler. This is to make certain that
program code is not stored in this address when the
code is compiled. Program code executing out of
configuration space will cause a device Reset.
Note: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a compre-
hensive reference source. To complement
the information in this data sheet, refer to
the related section of the “dsPIC33/PIC24
Family Reference Manual”, which is
available from the Microchip website
(www.microchip.com).
Note: Configuration data is reloaded on all types
of device Resets.
Note: Performing a page erase operation on the
last page of program memory clears the
Flash Configuration Words.
TABLE 30-1: dsPIC33CKXXXMPX0X CONFIGURATION ADDRESSES
Register Name
Single Partition Dual Partition, Active Dual Partition, Inactive
256k 128k 256k 128k 256k 128k
FSEC(2)0x02BF00 0x015F00 0x015F00 0x00AF00 0x415F00 0x40AF00
FBSLIM(2)0x02BF10 0x015F10 0x015F10 0x00AF10 0x415F10 0x40AF10
FSIGN(2)0x02BF14 0x015F14 0x015F14 0x00AF14 0x415F14 0x40AF14
FOSCSEL 0x02BF18 0x015F18 0x015F18 0x00AF18 0x415F18 0x40AF18
FOSC 0x02BF1C 0x015F1C 0x015F1C 0x00AF1C 0x415F1C 0x40AF1C
FWDT 0x02BF20 0x015F20 0x015F20 0x00AF20 0x415F20 0x40AF20
FPOR 0x02BF24 0x015F24 0x015F24 0x00AF24 0x415F24 0x40AF24
FICD 0x02BF28 0x015F28 0x015F28 0x00AF28 0x415F28 0x40AF28
FDMTIVTL 0x02BF2C 0x015F2C 0x015F2C 0x00AF2C 0x415F2C 0x40AF2C
FDMTIVTH 0x02BF30 0x015F30 0x015F30 0x00AF30 0x415F30 0x40AF30
FDMTCNTL 0x02BF34 0x015F34 0x015F34 0x00AF34 0x415F34 0x40AF34
FDMTCNTH 0x02BF38 0x015F38 0x015F38 0x00AF38 0x415F38 0x40AF38
FDMT 0x02BF3C 0x015F3C 0x015F3C 0x00AF3C 0x415F3C 0x40AF3C
FDEVOPT 0x02BF40 0x015F40 0x015F40 0x00AF40 0x415F40 0x40AF40
FALTREG 0x02BF44 0x015F44 0x015F44 0x00AF44 0x415F44 0x40AF44
FBTSEQ 0x02BFFC 0x015FFC 0x015FFC 0x00AFFC 0x415FFC 0x40AFFC
FBOOT(1)0x801800
Note 1: FBOOT resides in calibration memory space.
2: Changes to the Inactive Partition Configuration Words affect how the Active Partition accesses the
Inactive Partition.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 508 2017-2018 Microchip Technology Inc.
TABLE 30-2: dsPIC33CKXXMPX0X CONFIGURATION ADDRESSES
Register Name
Single Partition Dual Partition, Active Dual Partition, Inactive
64k 32k 64k 32k 64k 32k
FSEC(2)0x00AF00 0x005F00 0x005F00 0x002F00 0x405F00 0x402F00
FBSLIM(2)0x00AF10 0x005F10 0x005F10 0x002F10 0x405F10 0x402F10
FSIGN(2)0x00AF14 0x005F14 0x005F14 0x002F14 0x405F14 0x402F14
FOSCSEL 0x00AF18 0x005F18 0x005F18 0x002F18 0x405F18 0x402F18
FOSC 0x00AF1C 0x005F1C 0x005F1C 0x002F1C 0x405F1C 0x402F1C
FWDT 0x00AF20 0x005F20 0x005F20 0x002F20 0x405F20 0x402F20
FPOR 0x00AF24 0x005F24 0x005F24 0x002F24 0x405F24 0x402F24
FICD 0x00AF28 0x005F28 0x005F28 0x002F28 0x405F28 0x402F28
FDMTIVTL 0x00AF2C 0x005F2C 0x005F2C 0x002F2C 0x405F2C 0x402F2C
FDMTIVTH 0x00AF30 0x005F30 0x005F30 0x002F30 0x405F30 0x402F30
FDMTCNTL 0x00AF34 0x005F34 0x005F34 0x002F34 0x405F34 0x402F34
FDMTCNTH 0x00AF38 0x005F38 0x005F38 0x002F38 0x405F38 0x402F38
FDMT 0x00AF3C 0x005F3C 0x005F3C 0x002F3C 0x405F3C 0x402F3C
FDEVOPT 0x00AF40 0x005F40 0x005F40 0x002F40 0x405F40 0x402F40
FALTREG 0x00AF44 0x005F44 0x005F44 0x002F44 0x405F44 0x402F44
FBTSEQ 0x00AFFC 0x005FFC 0x005FFC 0x002FFC 0x405FFC 0x402FFC
FBOOT(1)0x801800
Note 1: FBOOT resides in calibration memory space.
2: Changes to the Inactive Partition Configuration Words affect how the Active Partition accesses the
Inactive Partition.
2017-2018 Microchip Technology Inc. DS70005349E-page 509
dsPIC33CK256MP508 FAMILY
TABLE 30-3: CONFIGURATION REGISTERS MAP
Register
Name Bits 23-16 Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
FSEC —AIVTDIS— — — CSS<2:0> CWRP GSS<1:0> GWRP — BSEN BSS<1:0> BWRP
FBSLIM — — — — BSLIM<12:0>
FSIGN — r
(2)
— — — — — — — — — — — — — — —
FOSCSEL — — — — — — — — —IESO— — — — FNOSC<2:0>
FOSC — — — — XTBST XTCFG<1:0> — PLLKEN FCKSM<1:0> — — — OSCIOFCN POSCMD<1:0>
FWDT — FWDTEN SWDTPS<4:0> WDTWIN<1:0> WINDIS RCLKSEL<1:0> RWDTPS<4:0>
FPOR — — — — — — r
(1)
— — — BISTDIS r
(1)
r
(1)
— — — —
FICD —NOBTSWP— — — — — — — r
(1)
—JTAGEN— — — ICS<1:0>
FDMTIVTL —DMTIVT<15:0>
FDMTIVTH —DMTIVT<31:16>
FDMTCNTL —DMTCNT<15:0>
FDMTCNTH —DMTCNT<31:16>
FDMT — — — — — — — — — — — — — — — —DMTDIS
FDEVOPT — — — SPI2PIN ——SMBENr
(2)
r
(2)
r
(1)
— ALTI2C3 ALTI2C2 ALTI2C1 r
(1)
— —
FALTREG ——CTXT4<2:0>— CTXT3<2:0> — CTXT2<2:0> — CTXT1<2:0>
FBTSEQ IBSEQ<11:4> IBSEQ<3:0> BSEQ<11:0>
FBOOT — — — — — — — — — — — — — — — BTMODE<1:0>
Legend:
— = unimplemented bit, read as ‘
1
’; r = reserved bit.
Note 1:
Bit reserved, maintain as ‘
1
’.
2:
Bit reserved, maintain as ‘
0
’.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 510 2017-2018 Microchip Technology Inc.
REGISTER 30-1: FSEC CONFIGURATION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
R/PO-1 U-1 U-1 U-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
AIVTDIS — — — CSS<2:0> CWRP
bit 15 bit 8
R/PO-1 R/PO-1 R/PO-1 U-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
GSS<1:0> GWRP — BSEN BSS<1:0> BWRP
bit 7 bit 0
Legend: PO = Program Once bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 23-16 Unimplemented: Read as ‘1’
bit 15 AIVTDIS: Alternate Interrupt Vector Table Disable bit
1 = Disables AIVT
0 = Enables AIVT
bit 14-12 Unimplemented: Read as ‘1’
bit 11-9 CSS<2:0>: Configuration Segment Code Flash Protection Level bits
111 = No protection (other than CWRP write protection)
110 = Standard security
10x = Enhanced security
0xx = High security
bit 8 CWRP: Configuration Segment Write-Protect bit
1 = Configuration Segment is not write-protected
0 = Configuration Segment is write-protected
bit 7-6 GSS<1:0>: General Segment Code Flash Protection Level bits
11 = No protection (other than GWRP write protection)
10 = Standard security
0x = High security
bit 5 GWRP: General Segment Write-Protect bit
1 = User program memory is not write-protected
0 = User program memory is write-protected
bit 4 Unimplemented: Read as ‘1’
bit 3 BSEN: Boot Segment Control bit
1 = No Boot Segment
0 = Boot Segment size is determined by BSLIM<12:0>
bit 2-1 BSS<1:0>: Boot Segment Code Flash Protection Level bits
11 = No protection (other than BWRP write protection)
10 = Standard security
0x = High security
bit 0 BWRP: Boot Segment Write-Protect bit
1 = User program memory is not write-protected
0 = User program memory is write-protected
2017-2018 Microchip Technology Inc. DS70005349E-page 511
dsPIC33CK256MP508 FAMILY
REGISTER 30-2: FBSLIM CONFIGURATION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
U-1 U-1 U-1 R/PO-1R/PO-1R/PO-1R/PO-1R/PO-1
— — — BSLIM<12:8>
bit 15 bit 8
R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
BSLIM<7:0>
bit 7 bit 0
Legend: PO = Program Once bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 23-13 Unimplemented: Read as ‘1’
bit 12-0 BSLIM<12:0>: Boot Segment Code Flash Page Address Limit bits
Contains the page address of the first active General Segment page. The value to be programmed is the
inverted page address, such that programming additional ‘0’s can only increase the Boot Segment size.
REGISTER 30-3: FSIGN CONFIGURATION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
r-0 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 15 bit 8
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 7 bit 0
Legend: r = Reserved bit PO = Program Once bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 23-16 Unimplemented: Read as ‘1’
bit 15 Reserved: Maintain as ‘0’
bit 14-0 Unimplemented: Read as ‘1’
dsPIC33CK256MP508 FAMILY
DS70005349E-page 512 2017-2018 Microchip Technology Inc.
REGISTER 30-4: FOSCSEL CONFIGURATION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 15 bit 8
R/PO-1 U-1 U-1 U-1 U-1 R/PO-1 R/PO-1 R/PO-1
IESO — — — —FNOSC<2:0>
bit 7 bit 0
Legend: PO = Program Once bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 23-8 Unimplemented: Read as ‘1’
bit 7 IESO: Internal External Switchover bit
1 = Internal External Switchover mode is enabled (Two-Speed Start-up is enabled)
0 = Internal External Switchover mode is disabled (Two-Speed Start-up is disabled)
bit 6-3 Unimplemented: Read as ‘1’
bit 2-0 FNOSC<2:0>: Initial Oscillator Source Selection bits
111 = Internal Fast RC (FRC) Oscillator with Postscaler
110 = Backup Fast RC (BFRC)
101 = LPRC Oscillator
100 = Reserved
011 = Primary Oscillator with PLL (XTPLL, HSPLL, ECPLL)
010 = Primary (XT, HS, EC) Oscillator
001 = Internal Fast RC Oscillator with PLL (FRCPLL)
000 = Fast RC (FRC) Oscillator
2017-2018 Microchip Technology Inc. DS70005349E-page 513
dsPIC33CK256MP508 FAMILY
REGISTER 30-5: FOSC CONFIGURATION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
U-1 U-1 U-1 R/PO-1 R/PO-1 R/PO-1 U-1 R/PO-1
— — — XTBST XTCFG<1:0> —PLLKEN(1)
bit 15 bit 8
R/PO-1 R/PO-1 U-1 U-1 U-1 R/PO-1 R/PO-1 R/PO-1
FCKSM<1:0> — — — OSCIOFNC POSCMD<1:0>
bit 7 bit 0
Legend: PO = Program Once bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 23-13 Unimplemented: Read as ‘1’
bit 12 XTBST: Oscillator Kick-Start Programmability bit
1 = Boosts the kick-start
0 = Default kick-start
bit 11-10 XTCFG<1:0>: Crystal Oscillator Drive Select bits
Current gain programmability for oscillator (output drive).
11 = Gain3 (use for 24-32 MHz crystals)
10 = Gain2 (use for 16-24 MHz crystals)
01 = Gain1 (use for 8-16 MHz crystals)
00 = Gain0 (use for 4-8 MHz crystals)
bit 9 Unimplemented: Read as ‘1’
bit 8 PLLKEN: PLL Lock Status Control bit(1)
1 = PLL lock signal will be used to disable PLL clock output if lock is lost
0 = PLL lock signal is not used; the PLL clock output will not be disabled if lock is lost
bit 7-6 FCKSM<1:0>: Clock Switching Mode bits
1x = Clock switching is disabled, Fail-Safe Clock Monitor is disabled
01 = Clock switching is enabled, Fail-Safe Clock Monitor is disabled
00 = Clock switching is enabled, Fail-Safe Clock Monitor is enabled
bit 5-3 Unimplemented: Read as ‘1’
bit 2 OSCIOFNC: OSCO Pin Function bit (except in XT and HS modes)
1 = OSCO is the clock output
0 = OSCO is the general purpose digital I/O pin
bit 1-0 POSCMD<1:0>: Primary Oscillator Mode Select bits
11 = Primary Oscillator is disabled
10 = HS Crystal Oscillator mode (10 MHz-32 MHz)
01 = XT Crystal Oscillator mode (3.5 MHz-10 MHz)
00 = EC (External Clock) mode
Note 1: A time-out period will occur when the system clock switching logic requests the PLL clock source and the
PLL is not already enabled.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 514 2017-2018 Microchip Technology Inc.
REGISTER 30-6: FWDT CONFIGURATION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
FWDTEN SWDTPS<4:0> WDTWIN<1:0>
bit 15 bit 8
R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
WINDIS RCLKSEL<1:0> RWDTPS<4:0>
bit 7 bit 0
Legend: PO = Program Once bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 23-16 Unimplemented: Read as ‘1’
bit 15 FWDTEN: Watchdog Timer Enable bit
1 = WDT is enabled in hardware
0 = WDT controller via the ON bit (WDTCONL<15>)
bit 14-10 SWDTPS<4:0>: Sleep Mode Watchdog Timer Period Select bits
11111 = Divide by 2 ^ 31 = 2,147,483,648
11110 = Divide by 2 ^ 30 = 1,073,741,824
...
00001 = Divide by 2 ^ 1, 2
00000 = Divide by 2 ^ 0, 1
bit 9-8 WDTWIN<1:0>: Watchdog Timer Window Select bits
11 = WDT window is 25% of the WDT period
10 = WDT window is 37.5% of the WDT period
01 = WDT window is 50% of the WDT period
00 = WDT Window is 75% of the WDT period
bit 7 WINDIS: Watchdog Timer Window Enable bit
1 = Watchdog Timer is in Non-Window mode
0 = Watchdog Timer is in Window mode
bit 6-5 RCLKSEL<1:0>: Watchdog Timer Clock Select bits
11 = LPRC clock
10 = Uses FRC when WINDIS = 0, system clock is not INTOSC/LPRC and device is not in Sleep;
otherwise, uses INTOSC/LPRC
01 = Uses peripheral clock when system clock is not INTOSC/LPRC and device is not in Sleep;
otherwise, uses INTOSC/LPRC
00 = Reserved
bit 4-0 RWDTPS<4:0>: Run Mode Watchdog Timer Period Select bits
11111 = Divide by 2 ^ 31 = 2,147,483,648
11110 = Divide by 2 ^ 30 = 1,073,741,824
...
00001 = Divide by 2 ^ 1, 2
00000 = Divide by 2 ^ 0, 1
2017-2018 Microchip Technology Inc. DS70005349E-page 515
dsPIC33CK256MP508 FAMILY
REGISTER 30-7: FPOR CONFIGURATION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
U-1 U-1 U-1 U-1 U-1 r-1 U-1 U-1
— — — — — — — —
bit 15 bit 8
U-1 R/PO-1 r-1 r-1 U-1 U-1 U-1 U-1
— BISTDIS(1)— — — — — —
bit 7 bit 0
Legend: PO = Program Once bit r = Reserved bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 23-11 Unimplemented: Read as ‘1’
bit 10 Reserved: Maintain as ‘1’
bit 9-7 Unimplemented: Read as ‘1’
bit 6 BISTDIS: Memory BIST Feature Disable bit(1)
1 = MBIST on Reset feature is disabled
0 = MBIST on Reset feature is enabled
bit 5-4 Reserved: Maintain as ‘0b11’
bit 3-0 Unimplemented: Read as ‘1’
Note 1: Applies to a Power-on Reset (POR) only.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 516 2017-2018 Microchip Technology Inc.
REGISTER 30-8: FICD CONFIGURATION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
R/PO-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
NOBTSWP — — — — — — —
bit 15 bit 8
r-1 U-1 R/PO-1 U-1 U-1 U-1 R/PO-1 R/PO-1
——JTAGEN— — —ICS<1:0>
bit 7 bit 0
Legend: PO = Program Once bit r = Reserved bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 23-16 Unimplemented: Read as ‘1’
bit 15 NOBTSWP: BOOTSWP Instruction Disable bit
1 = BOOTSWP instruction is disabled
0 = BOOTSWP instruction is enabled
bit 14-8 Unimplemented: Read as ‘1’
bit 7 Reserved: Maintain as ‘1’
bit 6 Unimplemented: Read as ‘1’
bit 5 JTAGEN: JTAG Enable bit
1 = JTAG port is enabled
0 = JTAG port is disabled
bit 4-2 Unimplemented: Read as ‘1’
bit 1-0 ICS<1:0>: ICD Communication Channel Select bits
11 = Communicates on PGC1 and PGD1
10 = Communicates on PGC2 and PGD2
01 = Communicates on PGC3 and PGD3
00 = Reserved, do not use
2017-2018 Microchip Technology Inc. DS70005349E-page 517
dsPIC33CK256MP508 FAMILY
REGISTER 30-9: FDMTIVTL CONFIGURATION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
DMTIVT<15:8>
bit 15 bit 8
R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
DMTIVT<7:0>
bit 7 bit 0
Legend: PO = Program Once bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 23-16 Unimplemented: Read as ‘1’
bit 15-0 DMTIVT<15:0>: DMT Window Interval Lower 16 bits
REGISTER 30-10: FDMTIVTH CONFIGURATION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
DMTIVT<31:24>
bit 15 bit 8
R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
DMTIVT<23:16>
bit 7 bit 0
Legend: PO = Program Once bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 23-16 Unimplemented: Read as ‘1’
bit 15-0 DMTIVT<31:16>: DMT Window Interval Higher 16 bits
dsPIC33CK256MP508 FAMILY
DS70005349E-page 518 2017-2018 Microchip Technology Inc.
REGISTER 30-11: FDMTCNTL CONFIGURATION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
DMTCNT<15:8>
bit 15 bit 8
R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
DMTCNT<7:0>
bit 7 bit 0
Legend: PO = Program Once bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 23-16 Unimplemented: Read as ‘1’
bit 15-0 DMTCNT<15:0>: DMT Instruction Count Time-out Value Lower 16 bits
REGISTER 30-12: FDMTCNTH CONFIGURATION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
DMTCNT<31:24>
bit 15 bit 8
R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
DMTCNT<23:16>
bit 7 bit 0
Legend: PO = Program Once bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 23-16 Unimplemented: Read as ‘1’
bit 15-0 DMTCNT<31:16>: DMT Instruction Count Time-out Value Upper 16 bits
2017-2018 Microchip Technology Inc. DS70005349E-page 519
dsPIC33CK256MP508 FAMILY
REGISTER 30-13: FDMT CONFIGURATION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 15 bit 8
U-1 U-1 U-1 U-1 U-1 U-1 U-1 R/PO-1
— — — — — — —DMTDIS
bit 7 bit 0
Legend: PO = Program Once bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 23-1 Unimplemented: Read as ‘1’
bit 0 DMTDIS: DMT Disable bit
1 = DMT is disabled
0 = DMT is enabled
dsPIC33CK256MP508 FAMILY
DS70005349E-page 520 2017-2018 Microchip Technology Inc.
REGISTER 30-14: FDEVOPT CONFIGURATION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
U-1 U-1 R/PO-1 U-1 U-1 R/PO-1 r-0 r-0
—— SPI2PIN(1)—— SMBEN — —
bit 15 bit 8
r-1 U-1 R/PO-1 R/PO-1 R/PO-1 r-1 U-1 U-1
—— ALTI2C3 ALTI2C2 ALTI2C1 — — —
bit 7 bit 0
Legend: PO = Program Once bit r = Reserved bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 23-14 Unimplemented: Read as ‘1’
bit 13 SPI2PIN: Master SPI #2 Fast I/O Pad Disable bit(1)
1 = Master SPI2 uses PPS (I/O remap) to make connections with device pins
0 = Master SPI2 uses direct connections with specified device pins
bit 12-11 Unimplemented: Read as ‘1’
bit 10 SMBEN: Select Input Voltage Threshold for I2C Pads to be SMBus 3.0 Compliant bit
1 = Enables SMBus 3.0 input threshold voltage
0 = I2C pad input buffer operation
bit 9-8 Reserved: Maintain as ‘0’
bit 7 Reserved: Maintain as ‘1’
bit 6 Unimplemented: Read as ‘1’
bit 5 ALTI2C3: Alternate I2C3 Pin Mapping bit
1 = Default location for SCL3/SDA3 pins
0 = Alternate location for SCL3/SDA3 pins (ASCL3/ASDA3)
bit 4 ALTI2C2: Alternate I2C2 Pin Mapping bit
1 = Default location for SCL2/SDA2 pins
0 = Alternate location for SCL2/SDA2 pins (ASCL2/ASDA2)
bit 3 ALTI2C1: Alternate I2C1 Pin Mapping bit
1 = Default location for SCL1/SDA1 pins
0 = Alternate location for SCL1/SDA1 pins (ASCL1/ASDA1)
bit 2 Reserved: Maintain as ‘1’
bit 1-0 Unimplemented: Read as ‘1’
Note 1: Fixed pin option is only available for higher pin packages (48-pin, 64-pin and 80-pin).
2017-2018 Microchip Technology Inc. DS70005349E-page 521
dsPIC33CK256MP508 FAMILY
REGISTER 30-15: FALTREG CONFIGURATION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
U-1 R/PO-1 R/PO-1 R/PO-1 U-1 R/PO-1 R/PO-1 R/PO-1
—CTXT4<2:0>— CTXT3<2:0>
bit 15 bit 8
U-1 R/PO-1 R/PO-1 R/PO-1 U-1 R/PO-1 R/PO-1 R/PO-1
—CTXT2<2:0>— CTXT1<2:0>
bit 7 bit 0
Legend: PO = Program Once bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 23-15 Unimplemented: Read as ‘1’
bit 14-12 CTXT4<2:0>: Specifies the Alternate Working Register Set #4 with Interrupt Priority Levels (IPL) bits
111 = Not assigned
110 = Alternate Register Set #4 is assigned to IPL Level 7
101 = Alternate Register Set #4 is assigned to IPL Level 6
100 = Alternate Register Set #4 is assigned to IPL Level 5
011 = Alternate Register Set #4 is assigned to IPL Level 4
010 = Alternate Register Set #4 is assigned to IPL Level 3
001 = Alternate Register Set #4 is assigned to IPL Level 2
000 = Alternate Register Set #4 is assigned to IPL Level 1
bit 11 Unimplemented: Read as ‘1’
bit 10-8 CTXT3<2:0>: Specifies the Alternate Working Register Set #3 with Interrupt Priority Levels (IPL) bits
111 = Not assigned
110 = Alternate Register Set #3 is assigned to IPL Level 7
101 = Alternate Register Set #3 is assigned to IPL Level 6
100 = Alternate Register Set #3 is assigned to IPL Level 5
011 = Alternate Register Set #3 is assigned to IPL Level 4
010 = Alternate Register Set #3 is assigned to IPL Level 3
001 = Alternate Register Set #3 is assigned to IPL Level 2
000 = Alternate Register Set #3 is assigned to IPL Level 1
bit 7 Unimplemented: Read as ‘1’
bit 6-4 CTXT2<2:0>: Specifies the Alternate Working Register Set #2 with Interrupt Priority Levels (IPL) bits
111 = Not assigned
110 = Alternate Register Set #2 is assigned to IPL Level 7
101 = Alternate Register Set #2 is assigned to IPL Level 6
100 = Alternate Register Set #2 is assigned to IPL Level 5
011 = Alternate Register Set #2 is assigned to IPL Level 4
010 = Alternate Register Set #2 is assigned to IPL Level 3
001 = Alternate Register Set #2 is assigned to IPL Level 2
000 = Alternate Register Set #2 is assigned to IPL Level 1
bit 3 Unimplemented: Read as ‘1’
dsPIC33CK256MP508 FAMILY
DS70005349E-page 522 2017-2018 Microchip Technology Inc.
bit 2-0 CTXT1<2:0>: Specifies the Alternate Working Register Set #1 with Interrupt Priority Levels (IPL) bits
111 = Not assigned
110 = Alternate Register Set #1 is assigned to IPL Level 7
101 = Alternate Register Set #1 is assigned to IPL Level 6
100 = Alternate Register Set #1 is assigned to IPL Level 5
011 = Alternate Register Set #1 is assigned to IPL Level 4
010 = Alternate Register Set #1 is assigned to IPL Level 3
001 = Alternate Register Set #1 is assigned to IPL Level 2
000 = Alternate Register Set #1 is assigned to IPL Level 1
REGISTER 30-15: FALTREG CONFIGURATION REGISTER (CONTINUED)
REGISTER 30-16: FBTSEQ CONFIGURATION REGISTER
R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
IBSEQ<11:4>
bit 23 bit 16
R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
IBSEQ<3:0> BSEQ<11:8>
bit 15 bit 8
R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1 R/PO-1
BSEQ<7:0>
bit 7 bit 0
Legend: PO = Program Once bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘1’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 23-12 IBSEQ<11:0>: Inverse Boot Sequence Number bits (Dual Partition modes only)
The one’s complement of BSEQ<11:0>; must be calculated by the user and written into device
programming.
bit 11-0 BSEQ<11:0>: Boot Sequence Number bits (Dual Partition modes only)
Relative value defining which partition will be active after a device Reset; the partition containing a lower
boot number will be active.
2017-2018 Microchip Technology Inc. DS70005349E-page 523
dsPIC33CK256MP508 FAMILY
REGISTER 30-17: FBOOT CONFIGURATION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 15 bit 8
U-1 U-1 U-1 U-1 U-1 U-1 R/PO-1 R/PO-1
— — — — — —BTMODE<1:0>
bit 7 bit 0
Legend: PO = Program Once bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘1’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-2 Unimplemented: Read as ‘1’
bit 1-0 BTMODE<1:0>: Device Partition Mode Configuration Status bits
11 = Single Partition mode
10 = Dual Partition mode
01 = Protected Dual Partition mode (Partition 1 is write-protected when inactive)
00 = Reserved; do not use
dsPIC33CK256MP508 FAMILY
DS70005349E-page 524 2017-2018 Microchip Technology Inc.
30.2 Device Calibration and
Identification
The dsPIC33CK256MP508 devices have two Identifi-
cation registers, near the end of configuration memory
space, that store the Device ID (DEVID) and Device
Revision (DEVREV). These registers are used to
determine the mask, variant and manufacturing
information about the device. These registers are
read-only and are shown in Register 30-18 and
Register 30-19.
REGISTER 30-18: DEVREV: DEVICE REVISION REGISTER
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
r-0 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 15 bit 8
U-1 U-1 U-1 U-1 R R R R
— — — — DEVREV<3:0>
bit 7 bit 0
Legend: R = Read-only bit r = Reserved bit U = Unimplemented bit
bit 23-16 Unimplemented: Read as ‘1’
bit 15 Reserved: Maintain as ‘0’
bit 14-4 Unimplemented: Read as ‘1’
bit 3-0 DEVREV<3:0>: Device Revision bits
REGISTER 30-19: DEVID: DEVICE ID REGISTERS
U-1 U-1 U-1 U-1 U-1 U-1 U-1 U-1
— — — — — — — —
bit 23 bit 16
RRRRRRRR
FAMID<7:0>
bit 15 bit 8
RRRRRRRR
DEV<7:0>(1)
bit 7 bit 0
Legend: R = Read-only bit U = Unimplemented bit
bit 23-16 Unimplemented: Read as ‘1’
bit 15-8 FAMID<7:0>: Device Family Identifier bits
0111 1100 = dsPIC33CK256MP508 family
bit 7-0 DEV<7:0>: Individual Device Identifier bits(1)
Note 1: See Table 30-4 for the list of Device Identifier bits.
2017-2018 Microchip Technology Inc. DS70005349E-page 525
dsPIC33CK256MP508 FAMILY
TABLE 30-4: DEVICE IDs FOR THE dsPIC33CK256MP508 FAMILY
Device DEVID
Device IDs for dsPIC33CK256MP508 Family with CAN FD
dsPIC33CK256MP508 0x7C74
dsPIC33CK256MP506 0x7C73
dsPIC33CK256MP505 0x7C72
dsPIC33CK256MP503 0x7C71
dsPIC33CK256MP502 0x7C70
dsPIC33CK128MP508 0x7C64
dsPIC33CK128MP506 0x7C63
dsPIC33CK128MP505 0x7C62
dsPIC33CK128MP503 0x7C61
dsPIC33CK128MP502 0x7C60
dsPIC33CK64MP508 0x7C54
dsPIC33CK64MP506 0x7C53
dsPIC33CK64MP505 0x7C52
dsPIC33CK64MP503 0x7C51
dsPIC33CK64MP502 0x7C50
dsPIC33CK32MP506 0x7C43
dsPIC33CK32MP505 0x7C42
dsPIC33CK32MP503 0x7C41
dsPIC33CK32MP502 0x7C40
Device IDs for dsPIC33CK256MP508 Family without CAN FD
dsPIC33CK256MP208 0x7C34
dsPIC33CK256MP206 0x7C33
dsPIC33CK256MP205 0x7C32
dsPIC33CK256MP203 0x7C31
dsPIC33CK256MP202 0x7C30
dsPIC33CK128MP208 0x7C24
dsPIC33CK128MP206 0x7C23
dsPIC33CK128MP205 0x7C22
dsPIC33CK128MP203 0x7C21
dsPIC33CK128MP202 0x7C20
dsPIC33CK64MP208 0x7C14
dsPIC33CK64MP206 0x7C13
dsPIC33CK64MP205 0x7C12
dsPIC33CK64MP203 0x7C11
dsPIC33CK64MP202 0x7C10
dsPIC33CK32MP206 0x7C03
dsPIC33CK32MP205 0x7C02
dsPIC33CK32MP203 0x7C01
dsPIC33CK32MP202 0x7C00
dsPIC33CK256MP508 FAMILY
DS70005349E-page 526 2017-2018 Microchip Technology Inc.
30.3 User OTP Memory
The dsPIC33CK256MP508 family devices contain
64 One-Time-Programmable (OTP) double words,
located at addresses, 801700h through 8017FEh. Each
48-bit OTP double word can only be written one time.
The OTP Words can be used for storing checksums,
code revisions, manufacturing dates, manufacturing lot
numbers or any other application-specific information.
The OTP area is not cleared by any erase command.
This memory can be written only once.
30.4 On-Chip Voltage Regulators
dsPIC33CK256MP508 family devices have a capacitor-
less internal voltage regulator to supply power to the core
at 1.2V (typical).
A pair of voltage regulators, VREG1 and VREG2
together, provide power for the core. The PLL is
powered using a separate regulator, VREGPLL, as
shown in Figure 30-1.
The regulators have Low-Power and Standby modes for
use in Sleep modes. For additional information about
Sleep, see Section 29.2.1 “Sleep Mode”.
When the regulators are in Low-Power mode
(LPWREN = 1), the power available to the core is lim-
ited. Before the LPWREN bit is set, the device should be
placed into a lower power state by disabling peripherals
and lowering CPU frequency (e.g., 8 MHz FRC without
PLL).
The output voltages of the three regulators can be
controlled independently by the user, which gives the
capability to save additional power during Sleep mode.
FIGURE 30-1: INTERNAL REGULATOR
VREG1
VREGPLL
Band Gap
Reference
CPU Core
PLL
VSS
VDD
AVDD
AVSS
0.1 µF
Ceramic
0.1 µF
Ceramic
VREG2
2017-2018 Microchip Technology Inc. DS70005349E-page 527
dsPIC33CK256MP508 FAMILY
30.5 Brown-out Reset (BOR)
The Brown-out Reset (BOR) module is based on an
internal voltage reference circuit that monitors the regu-
lated supply voltage. The main purpose of the BOR
module is to generate a device Reset when a brown-out
condition occurs. Brown-out conditions are generally
caused by glitches on the AC mains (for example, miss-
ing portions of the AC cycle waveform due to bad power
transmission lines or voltage sags due to excessive
current draw when a large inductive load is turned on).
A BOR generates a Reset pulse which resets the
device. The BOR selects the clock source based on the
device Configuration bit selections.
If an Oscillator mode is selected, the BOR activates the
Oscillator Start-up Timer (OST). The system clock is
held until OST expires. If the PLL is used, the clock is
held until the LOCK bit (OSCCON<5>) is ‘1’.
Concurrently, the PWRT Time-out (TPWRT) is applied
before the internal Reset is released. If TPWRT = 0 and a
crystal oscillator is being used, then a nominal delay of
TFSCM is applied. The total delay in this case is TFSCM.
Refer to Parameter SY35 in Table 33-25 of Section 33.0
“Electrical Characteristics” for specific TFSCM values.
The BOR status bit (RCON<1>) is set to indicate that a
BOR has occurred. The BOR circuit continues to oper-
ate while in Sleep or Idle mode and resets the device
should VDD fall below the BOR threshold voltage.
REGISTER 30-20: VREGCON: VOLTAGE REGULATOR CONTROL REGISTER
R/W-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
LPWREN(1)— — — — — — —
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— VREG3OV<1:0> VREG2OV<1:0> VREG1OV<1:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 LPWREN: Low-Power Mode Enable bit(1)
1 = Voltage regulators are in Low-Power mode
0 = Voltage regulators are in Full Power mode
bit 14-6 Unimplemented: Read as ‘1’
bit 5-4 VREG3OV<1:0>: Low-Power Mode Enable bits
11/00 = VOUT = 1.5 * VBG = 1.2V
10 = VOUT = 1.25 * VBG = 1.0V
01 = VOUT = VBG = 0.8V
bit 3-2 VREG2OV<1:0>: Low-Power Mode Enable bits
11/00 = VOUT = 1.5 * VBG = 1.2V
10 = VOUT = 1.25 * VBG = 1.0V
01 = VOUT = VBG = 0.8V
bit 1-0 VREG1OV<1:0>: Low-Power Mode Enable bits
11/00 = VOUT = 1.5 * VBG = 1.2V
10 = VOUT = 1.25 * VBG = 1.0V
01 = VOUT = VBG = 0.8V
Note 1: Low-Power mode can only be used within the industrial temperature range. The CPU should be run at
slow speed (8 MHz or less) before setting this bit.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 528 2017-2018 Microchip Technology Inc.
30.6 Dual Watchdog Timer (WDT)
The dsPIC33 dual Watchdog Timer (WDT) is described
in this section. Refer to Figure 30-2 for a block diagram
of the WDT.
The WDT, when enabled, operates from the internal
Low-Power RC (LPRC) Oscillator clock source or a
selectable clock source in Run mode. The WDT can be
used to detect system software malfunctions by reset-
ting the device if the WDT is not cleared periodically in
software. The WDT can be configured in Windowed
mode or Non-Windowed mode. Various WDT time-out
periods can be selected using the WDT postscaler. The
WDT can also be used to wake the device from Sleep
or Idle mode (Power Save mode). If the WDT expires
and issues a device Reset, the WTDO bit in RCON
(Register 6-1) will be set.
The following are some of the key features of the WDT
modules:
• Configuration or Software Controlled
• Separate User-Configurable Time-out Periods for
Run and Sleep/Idle
• Can Wake the Device from Sleep or Idle
• User-Selectable Clock Source in Run mode
• Operates from LPRC in Sleep/Idle mode
FIGURE 30-2: WATCHDOG TIMER BLOCK DIAGRAM
Note 1: This data sheet summarizes the features
of the dsPIC33CK256MP508 family of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to “Dual Watchdog Timer”,
(DS70005250) in the “dsPIC33/PIC24
Family Reference Manual”, which is
available from the Microchip website
(www.microchip.com).
00
10
CLKSEL<1:0>
SYSCLK
Reserved
FRC Oscillator
LPRC Oscillator
01
11
WDTCLRKEY<15:0> = 5743h
ON
All Resets
Reset
32-Bit Counter Comparator
RUNDIV<4:0>
ON
32-Bit Counter Comparator
Power Save
Power Save
SLPDIV<4:0>
Power Save
LPRC Oscillator
Wake-up and
NMI
NMI and Start
NMI Counter
Reset
Power Save
Mode WDT
Run Mode WDT
Clock Switch
2017-2018 Microchip Technology Inc. DS70005349E-page 529
dsPIC33CK256MP508 FAMILY
REGISTER 30-21: WDTCONL: WATCHDOG TIMER CONTROL REGISTER LOW
R/W-0 U-0 U-0 R-y R-y R-y R-y R-y
ON(1,2)—— RUNDIV4(3)RUNDIV3(3)RUNDIV2(3)RUNDIV1(3)RUNDIV0(3)
bit 15 bit 8
R R R-y R-y R-y R-y R-y HS/R/W-0
CLKSEL1(3,5)CLKSEL0(3,5)SLPDIV4(3)SLPDIV3(3)SLPDIV2(3)SLPDIV1(3)SLPDIV0(3)WDTWINEN(4)
bit 7 bit 0
Legend: HS = Hardware Settable bit y = Value from Configuration bit on POR
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ON: Watchdog Timer Enable bit(1,2)
1 = Enables the Watchdog Timer if it is not enabled by the device configuration
0 = Disables the Watchdog Timer if it was enabled in software
bit 14-13 Unimplemented: Read as ‘0’
bit 12-8 RUNDIV<4:0>: WDT Run Mode Postscaler Status bits(3)
11111 = Divide by 2 ^ 31 = 2,147,483,648
11110 = Divide by 2 ^ 30 = 1,073,741,824
...
00001 = Divide by 2 ^ 1, 2
00000 = Divide by 2 ^ 0, 1
bit 7-6 CLKSEL<1:0>: WDT Run Mode Clock Select Status bits(3,5)
11 = LPRC Oscillator
10 = FRC Oscillator
01 = Reserved
00 = SYSCLK
bit 5-1 SLPDIV<4:0>: Sleep and Idle Mode WDT Postscaler Status bits(3)
11111 = Divide by 2 ^ 31 = 2,147,483,648
11110 = Divide by 2 ^ 30 = 1,073,741,824
...
00001 = Divide by 2 ^ 1, 2
00000 = Divide by 2 ^ 0, 1
bit 0 WDTWINEN: Watchdog Timer Window Enable bit(4)
1 = Enables Window mode
0 = Disables Window mode
Note 1: A read of this bit will result in a ‘1’ if the WDT is enabled by the device configuration or by software.
2: The user’s software should not read or write the peripheral’s SFRs in the SYSCLK cycle immediately
following the instruction that clears the module’s ON bit.
3: These bits reflect the value of the Configuration bits.
4: The WDTWINEN bit reflects the status of the Configuration bit if the bit is set. If the bit is cleared, the value
is controlled by software.
5: The available clock sources are device-dependent.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 530 2017-2018 Microchip Technology Inc.
REGISTER 30-22: WDTCONH: WATCHDOG TIMER CONTROL REGISTER HIGH
W-0 W-0 W-0 W-0 W-0 W-0 W-0 W-0
WDTCLRKEY<15:8>
bit 15 bit 8
W-0 W-0 W-0 W-0 W-0 W-0 W-0 W-0
WDTCLRKEY<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 WDTCLRKEY<15:0>: Watchdog Timer Clear Key bits
To clear the Watchdog Timer to prevent a time-out, software must write the value, 0x5743, to this
location using a single 16-bit write.
2017-2018 Microchip Technology Inc. DS70005349E-page 531
dsPIC33CK256MP508 FAMILY
30.7 JTAG Interface
The dsPIC33CK256MP508 family devices implement a
JTAG interface, which supports boundary scan device
testing. Detailed information on this interface will be
provided in future revisions of this document.
30.8 In-Circuit Serial Programming™
(ICSP™)
The dsPIC33CK256MP508 family devices can be seri-
ally programmed while in the end application circuit. This
is done with two lines for clock and data, and three other
lines for power, ground and the programming sequence.
Serial programming allows customers to manufacture
boards with unprogrammed devices and then program
the device just before shipping the product. Serial
programming also allows the most recent firmware or a
custom firmware to be programmed. Refer to the
“dsPIC33CK256MP508 Family Flash Programming
Specification” (DS70005300) for details about In-Circuit
Serial Programming (ICSP).
Any of the three pairs of programming clock/data pins
can be used:
• PGC1 and PGD1
• PGC2 and PGD2
• PGC3 and PGD3
30.9 In-Circuit Debugger
When MPLAB® ICD 3 or the REAL ICE™ emulator is
selected as a debugger, the in-circuit debugging
functionality is enabled. This function allows simple
debugging functions when used with MPLAB IDE.
Debugging functionality is controlled through the PGCx
(Emulation/Debug Clock) and PGDx (Emulation/Debug
Data) pin functions.
Any of the three pairs of debugging clock/data pins can
be used:
• PGC1 and PGD1
• PGC2 and PGD2
• PGC3 and PGD3
To use the in-circuit debugger function of the device,
the design must implement ICSP connections to
MCLR, VDD, VSS and the PGCx/PGDx pin pair. In addi-
tion, when the feature is enabled, some of the
resources are not available for general use. These
resources include the first 80 bytes of data RAM and
two I/O pins (PGCx and PGDx).
30.10 Code Protection and
CodeGuard™ Security
dsPIC33CK256MP508 family devices offer multiple
levels of security for protecting individual intellectual
property. The program Flash protection can be broken up
into three segments: Boot Segment (BS), General
Segment (GS) and Configuration Segment (CS). Boot
Segment has the highest security privilege and can be
thought to have limited restrictions when accessing other
segments. General Segment has the least security and is
intended for the end user system code. Configuration
Segment contains only the device user configuration
data, which is located at the end of the program memory
space.
The code protection features are controlled by the
Configuration registers, FSEC and FBSLIM. The FSEC
register controls the code-protect level for each
segment and if that segment is write-protected. The
size of BS and GS will depend on the BSLIM<12:0> bits
setting and if the Alternate Interrupt Vector Table (AIVT)
is enabled. The BSLIM<12:0> bits define the number of
pages for BS with each page containing 1024 IW. The
smallest BS size is one page, which will consist of the
Interrupt Vector Table (IVT) and 512 IW of code
protection.
If the AIVT is enabled, the last page of BS will contain
the AIVT and will not contain any BS code. With AIVT
enabled, the smallest BS size is now two pages
(2048 IW), with one page for the IVT and BS code, and
the other page for the AIVT. Write protection of the BS
does not cover the AIVT. The last page of BS can
always be programmed or erased by BS code. The
General Segment will start at the next page and will
consume the rest of program Flash, except for the
Flash Configuration Words. The IVT will assume GS
security only if BS is not enabled. The IVT is protected
from being programmed or page erased when either
security segment has enabled write protection.
Note: Refer to “Programming and Diagnostics”
(DS70608) in the “dsPIC33/PIC24 Family
Reference Manual” for further information on
usage, configuration and operation of the
JTAG interface.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 532 2017-2018 Microchip Technology Inc.
The different device security segments are shown in
Figure 30-3. Here, all three segments are shown, but
are not required. If only basic code protection is
required, then GS can be enabled independently or
combined with CS, if desired.
FIGURE 30-3: SECURITY SEGMENTS
EXAMPLE
The dsPIC33CK256MP508 family can be operated in
Dual Partition mode, where security is required for
each partition. When operating in Dual Partition mode,
the Active and Inactive Partitions both contain unique
copies of the Reset vector and Interrupt Vector Tables
(IVT, if enabled). Both partitions have the three security
segments described previously. Code may not be
executed from the Inactive Partition, but it may be
programmed by, and read from, the Active Partition,
subject to defined code protection. Figure 30-4 shows
the different security segments for a device operating in
Dual Partition mode.
The device may also operate in a Protected Dual
Partition mode or in Privileged Dual Partition mode.
In Protected Dual Partition mode, Partition 1 is per-
manently erase/write-protected. This implementation
allows for a “Factory Default” mode, which provides a
fail-safe backup image to be stored in Partition 1. For
example, a fail-safe bootloader can be placed in
Partition 1, along with a fail-safe backup code image,
which can be used or rewritten into Partition 2 in the
event of a failed Flash update to Partition 2.
Privileged Dual Partition mode performs the same
function as Protected Dual Partition mode, except
additional constraints are applied in an effort to prevent
code in the Boot Segment and General Segment from
being used against each other.
FIGURE 30-4: SECURITY SEGMENTS
EXAMPLE (DUAL
PARTITION MODES)
IVT and AIVT
Assume
IVT
BS
AIVT + 512 IW(2)
GS
0x000000
0x000200
BSLIM<12:0>
0x0XXX00
CS(1)
Note 1: If CS is write-protected, the last page
(GS + CS) of program memory will be
protected from an erase condition.
2: The last half (256 IW) of the last page of
BS is unusable program memory.
BS Protection
IVT
BS(2)
GS
CS(1)
IVT
BS(2)
GS
CS(1)
Note 1: If CS is write-protected, the last page
(GS + CS) of program memory will be
protected from an erase condition.
2: The last half (512 IW) of the last page of
BS is unusable program memory.
0x000000
0x000200
BSLIM<12:0>
IVT
Assumes
IVT
Assumes
0x0XXXFE
0x4XXX00
0x4XX200
BSLIM<12:0>
0x4XXX00
BS Protection
BS Protection
2017-2018 Microchip Technology Inc. DS70005349E-page 533
dsPIC33CK256MP508 FAMILY
31.0 INSTRUCTION SET SUMMARY
The dsPIC33CK256MP508 family instruction set is
almost identical to that of the dsPIC30F and dsPIC33F.
Most instructions are a single program memory word
(24 bits). Only three instructions require two program
memory locations.
Each single-word instruction is a 24-bit word, divided
into an 8-bit opcode, which specifies the instruction
type and one or more operands, which further specify
the operation of the instruction.
The instruction set is highly orthogonal and is grouped
into five basic categories:
• Word or byte-oriented operations
• Bit-oriented operations
• Literal operations
• DSP operations
• Control operations
Table 31-1 lists the general symbols used in describing
the instructions.
The dsPIC33 instruction set summary in Tab l e 31-2
lists all the instructions, along with the status flags
affected by each instruction.
Most word or byte-oriented W register instructions
(including barrel shift instructions) have three
operands:
• The first source operand, which is typically a
register ‘Wb’ without any address modifier
• The second source operand, which is typically a
register ‘Ws’ with or without an address modifier
• The destination of the result, which is typically a
register ‘Wd’ with or without an address modifier
However, word or byte-oriented file register instructions
have two operands:
• The file register specified by the value ‘f’
• The destination, which could be either the file
register ‘f’ or the W0 register, which is denoted as
‘WREG’
Most bit-oriented instructions (including simple rotate/
shift instructions) have two operands:
• The W register (with or without an address
modifier) or file register (specified by the value of
‘Ws’ or ‘f’)
• The bit in the W register or file register (specified
by a literal value or indirectly by the contents of
register ‘Wb’)
The literal instructions that involve data movement can
use some of the following operands:
• A literal value to be loaded into a W register or file
register (specified by ‘k’)
• The W register or file register where the literal
value is to be loaded (specified by ‘Wb’ or ‘f’)
However, literal instructions that involve arithmetic or
logical operations use some of the following operands:
• The first source operand, which is a register ‘Wb’
without any address modifier
• The second source operand, which is a literal
value
• The destination of the result (only if not the same
as the first source operand), which is typically a
register ‘Wd’ with or without an address modifier
The MAC class of DSP instructions can use some of the
following operands:
• The accumulator (A or B) to be used (required
operand)
• The W registers to be used as the two operands
• The X and Y address space prefetch operations
• The X and Y address space prefetch destinations
• The accumulator write-back destination
The other DSP instructions do not involve any
multiplication and can include:
• The accumulator to be used (required)
• The source or destination operand (designated as
Wso or Wdo, respectively) with or without an
address modifier
• The amount of shift specified by a W register ‘Wn’
or a literal value
The control instructions can use some of the following
operands:
• A program memory address
• The mode of the Table Read and Table Write
instructions
Note: This data sheet summarizes the features of
the dsPIC33CK256MP508 family of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to the “16-Bit MCU and DSC
Programmer’s Reference Manual”
(www.microchip.com/DS70000157), which
is available from the Microchip website.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 534 2017-2018 Microchip Technology Inc.
Most instructions are a single word. Certain double-word
instructions are designed to provide all the required
information in these 48 bits. In the second word, the
eight MSbs are ‘0’s. If this second word is executed as
an instruction (by itself), it executes as a NOP.
The double-word instructions execute in two instruction
cycles.
Most single-word instructions are executed in a single
instruction cycle, unless a conditional test is true or the
Program Counter is changed as a result of the
instruction, or a PSV or Table Read is performed. In
these cases, the execution takes multiple instruction
cycles, with the additional instruction cycle(s) executed
as a NOP. Certain instructions that involve skipping over
the subsequent instruction require either two or three
cycles if the skip is performed, depending on whether
the instruction being skipped is a single-word or two-
word instruction. Moreover, double-word moves require
two cycles.
Note: In dsPIC33CK256MP508 devices, read and
Read-Modify-Write operations on non-CPU
Special Function Registers require an
additional cycle when compared to dsPIC30F,
dsPIC33F, PIC24F and PIC24H devices.
Note: For more details on the instruction set, refer
to the “16-Bit MCU and DSC Programmer’s
Reference Manual” (DS70000157).
TABLE 31-1: SYMBOLS USED IN OPCODE DESCRIPTIONS
Field Description
#text Means literal defined by “text”
(text) Means “content of text”
[text] Means “the location addressed by text”
{ } Optional field or operation
a {b, c, d} a is selected from the set of values b, c, d
<n:m> Register bit field
.b Byte mode selection
.d Double-Word mode selection
.S Shadow register select
.w Word mode selection (default)
Acc One of two accumulators {A, B}
AWB Accumulator Write-Back Destination Address register {W13, [W13]+ = 2}
bit4 4-bit bit selection field (used in word-addressed instructions) {0...15}
C, DC, N, OV, Z MCU Status bits: Carry, Digit Carry, Negative, Overflow, Sticky Zero
Expr Absolute address, label or expression (resolved by the linker)
f File register address {0x0000...0x1FFF}
lit1 1-bit unsigned literal {0,1}
lit4 4-bit unsigned literal {0...15}
lit5 5-bit unsigned literal {0...31}
lit8 8-bit unsigned literal {0...255}
lit10 10-bit unsigned literal {0...255} for Byte mode, {0:1023} for Word mode
lit14 14-bit unsigned literal {0...16384}
lit16 16-bit unsigned literal {0...65535}
lit23 23-bit unsigned literal {0...8388608}; LSb must be ‘0’
None Field does not require an entry, can be blank
OA, OB, SA, SB DSP Status bits: ACCA Overflow, ACCB Overflow, ACCA Saturate, ACCB Saturate
PC Program Counter
Slit10 10-bit signed literal {-512...511}
Slit16 16-bit signed literal {-32768...32767}
Slit6 6-bit signed literal {-16...16}
Wb Base W register {W0...W15}
Wd Destination W register { Wd, [Wd], [Wd++], [Wd--], [++Wd], [--Wd] }
Wdo Destination W register
{ Wnd, [Wnd], [Wnd++], [Wnd--], [++Wnd], [--Wnd], [Wnd+Wb] }
Wm,Wn Dividend, Divisor Working register pair (direct addressing)
2017-2018 Microchip Technology Inc. DS70005349E-page 535
dsPIC33CK256MP508 FAMILY
Wm*Wm Multiplicand and Multiplier Working register pair for Square instructions
{W4 * W4,W5 * W5,W6 * W6,W7 * W7}
Wm*Wn Multiplicand and Multiplier Working register pair for DSP instructions
{W4 * W5,W4 * W6,W4 * W7,W5 * W6,W5 * W7,W6 * W7}
Wn One of 16 Working registers {W0...W15}
Wnd One of 16 Destination Working registers {W0...W15}
Wns One of 16 Source Working registers {W0...W15}
WREG W0 (Working register used in file register instructions)
Ws Source W register { Ws, [Ws], [Ws++], [Ws--], [++Ws], [--Ws] }
Wso Source W register
{ Wns, [Wns], [Wns++], [Wns--], [++Wns], [--Wns], [Wns+Wb] }
Wx X Data Space Prefetch Address register for DSP instructions
{[W8] + = 6, [W8] + = 4, [W8] + = 2, [W8], [W8] - = 6, [W8] - = 4, [W8] - = 2,
[W9] + = 6, [W9] + = 4, [W9] + = 2, [W9], [W9] - = 6, [W9] - = 4, [W9] - = 2,
[W9 + W12], none}
Wxd X Data Space Prefetch Destination register for DSP instructions {W4...W7}
Wy Y Data Space Prefetch Address register for DSP instructions
{[W10] + = 6, [W10] + = 4, [W10] + = 2, [W10], [W10] - = 6, [W10] - = 4, [W10] - = 2,
[W11] + = 6, [W11] + = 4, [W11] + = 2, [W11], [W11] - = 6, [W11] - = 4, [W11] - = 2,
[W11 + W12], none}
Wyd Y Data Space Prefetch Destination register for DSP instructions {W4...W7}
TABLE 31-1: SYMBOLS USED IN OPCODE DESCRIPTIONS (CONTINUED)
Field Description
dsPIC33CK256MP508 FAMILY
DS70005349E-page 536 2017-2018 Microchip Technology Inc.
TABLE 31-2: INSTRUCTION SET OVERVIEW
Base
Instr
#
Assembly
Mnemonic Assembly Syntax Description # of
Words
# of
Cycles(1)Status Flags
Affected
1ADD ADD Acc Add Accumulators 1 1 OA,OB,SA,SB
ADD f f = f + WREG 1 1 C,DC,N,OV,Z
ADD f,WREG WREG = f + WREG 1 1 C,DC,N,OV,Z
ADD #lit10,Wn Wd = lit10 + Wd 1 1 C,DC,N,OV,Z
ADD Wb,Ws,Wd Wd = Wb + Ws 1 1 C,DC,N,OV,Z
ADD Wb,#lit5,Wd Wd = Wb + lit5 1 1 C,DC,N,OV,Z
ADD Wso,#Slit4,Acc 16-bit Signed Add to Accumulator 1 1 OA,OB,SA,SB
2ADDC ADDC f f = f + WREG + (C) 1 1 C,DC,N,OV,Z
ADDC f,WREG WREG = f + WREG + (C) 1 1 C,DC,N,OV,Z
ADDC #lit10,Wn Wd = lit10 + Wd + (C) 1 1 C,DC,N,OV,Z
ADDC Wb,Ws,Wd Wd = Wb + Ws + (C) 1 1 C,DC,N,OV,Z
ADDC Wb,#lit5,Wd Wd = Wb + lit5 + (C) 1 1 C,DC,N,OV,Z
3AND AND f f = f .AND. WREG 1 1 N,Z
AND f,WREG WREG = f .AND. WREG 1 1 N,Z
AND #lit10,Wn Wd = lit10 .AND. Wd 1 1 N,Z
AND Wb,Ws,Wd Wd = Wb .AND. Ws 1 1 N,Z
AND Wb,#lit5,Wd Wd = Wb .AND. lit5 1 1 N,Z
4ASR ASR f f = Arithmetic Right Shift f 1 1 C,N,OV,Z
ASR f,WREG WREG = Arithmetic Right Shift f 1 1 C,N,OV,Z
ASR Ws,Wd Wd = Arithmetic Right Shift Ws 1 1 C,N,OV,Z
ASR Wb,Wns,Wnd Wnd = Arithmetic Right Shift Wb by Wns 1 1 N,Z
ASR Wb,#lit5,Wnd Wnd = Arithmetic Right Shift Wb by lit5 1 1 N,Z
5BCLR BCLR f,#bit4 Bit Clear f 1 1 None
BCLR Ws,#bit4 Bit Clear Ws 1 1 None
6BFEXT BFEXT bit4,wid5,Ws,Wb Bit Field Extract from Ws to Wb 2 2 None
BFEXT bit4,wid5,f,Wb Bit Field Extract from f to Wb 2 2 None
7BFINS BFINS bit4,wid5,Wb,Ws Bit Field Insert from Wb into Ws 2 2 None
BFINS bit4,wid5,Wb,f Bit Field Insert from Wb into f 2 2 None
BFINS bit4,wid5,lit8,Ws Bit Field Insert from #lit8 to Ws 2 2 None
8BOOTSWP BOOTSWP Swap the Active and Inactive Program Flash
Space
12 None
Note 1: Read and Read-Modify-Write (e.g., bit operations and logical operations) on non-CPU SFRs incur an additional instruction cycle.
2: The divide instructions must be preceded with a “REPEAT #5” instruction, such that they are executed six consecutive times.
2017-2018 Microchip Technology Inc. DS70005349E-page 537
dsPIC33CK256MP508 FAMILY
9BRA BRA C,Expr Branch if Carry 1 1 (4) None
BRA GE,Expr Branch if Greater Than or Equal 1 1 (4) None
BRA GEU,Expr Branch if unsigned Greater Than or Equal 1 1 (4) None
BRA GT,Expr Branch if Greater Than 1 1 (4) None
BRA GTU,Expr Branch if Unsigned Greater Than 1 1 (4) None
BRA LE,Expr Branch if Less Than or Equal 1 1 (4) None
BRA LEU,Expr Branch if Unsigned Less Than or Equal 1 1 (4) None
BRA LT,Expr Branch if Less Than 1 1 (4) None
BRA LTU,Expr Branch if Unsigned Less Than 1 1 (4) None
BRA N,Expr Branch if Negative 1 1 (4) None
BRA NC,Expr Branch if Not Carry 1 1 (4) None
BRA NN,Expr Branch if Not Negative 1 1 (4) None
BRA NOV,Expr Branch if Not Overflow 1 1 (4) None
BRA NZ,Expr Branch if Not Zero 1 1 (4) None
BRA OA,Expr Branch if Accumulator A Overflow 1 1 (4) None
BRA OB,Expr Branch if Accumulator B Overflow 1 1 (4) None
BRA OV,Expr Branch if Overflow 1 1 (4) None
BRA SA,Expr Branch if Accumulator A Saturated 1 1 (4) None
BRA SB,Expr Branch if Accumulator B Saturated 1 1 (4) None
BRA Expr Branch Unconditionally 1 4 None
BRA Z,Expr Branch if Zero 1 1 (4) None
BRA Wn Computed Branch 1 4 None
10 BREAK BREAK Stop User Code Execution 1 1 None
11 BSET BSET f,#bit4 Bit Set f 1 1 None
Ws,#bit4 Bit Set Ws 1 1 None
12 BSW BSW.C Ws,Wb Write C bit to Ws<Wb> 1 1 None
BSW.Z Ws,Wb Write Z bit to Ws<Wb> 1 1 None
13 BTG BTG f,#bit4 Bit Toggle f 1 1 None
BTG Ws,#bit4 Bit Toggle Ws 1 1 None
14 BTSC BTSC f,#bit4 Bit Test f, Skip if Clear 1 1
(2 or 3)
None
BTSC Ws,#bit4 Bit Test Ws, Skip if Clear 1 1
(2 or 3)
None
15 BTSS BTSS f,#bit4 Bit Test f, Skip if Set 1 1
(2 or 3)
None
BTSS Ws,#bit4 Bit Test Ws, Skip if Set 1 1
(2 or 3)
None
16 BTST BTST f,#bit4 Bit Test f 1 1 Z
BTST.C Ws,#bit4 Bit Test Ws to C 1 1 C
BTST.Z Ws,#bit4 Bit Test Ws to Z 1 1 Z
BTST.C Ws,Wb Bit Test Ws<Wb> to C 1 1 C
BTST.Z Ws,Wb Bit Test Ws<Wb> to Z 1 1 Z
17 BTSTS BTSTS f,#bit4 Bit Test then Set f 1 1 Z
BTSTS.C Ws,#bit4 Bit Test Ws to C, then Set 1 1 C
BTSTS.Z Ws,#bit4 Bit Test Ws to Z, then Set 1 1 Z
18 CALL CALL lit23 Call Subroutine 2 4 SFA
CALL Wn Call Indirect Subroutine 1 4 SFA
CALL.L Wn Call Indirect Subroutine (long address) 1 4 SFA
19 CLR CLR f f = 0x0000 1 1 None
CLR WREG WREG = 0x0000 1 1 None
CLR Ws Ws = 0x0000 1 1 None
CLR Acc,Wx,Wxd,Wy,Wyd,AWB Clear Accumulator 1 1 OA,OB,SA,SB
TABLE 31-2: INSTRUCTION SET OVERVIEW (CONTINUED)
Base
Instr
#
Assembly
Mnemonic Assembly Syntax Description # of
Words
# of
Cycles(1)Status Flags
Affected
Note 1: Read and Read-Modify-Write (e.g., bit operations and logical operations) on non-CPU SFRs incur an additional instruction cycle.
2: The divide instructions must be preceded with a “REPEAT #5” instruction, such that they are executed six consecutive times.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 538 2017-2018 Microchip Technology Inc.
20 CLRWDT CLRWDT Clear Watchdog Timer 1 1 WDTO,Sleep
21 COM COM f f = f 11 N,Z
COM f,WREG WREG = f 11 N,Z
COM Ws,Wd Wd = Ws 11 N,Z
22 CP CP f Compare f with WREG 1 1 C,DC,N,OV,Z
CP Wb,#lit8 Compare Wb with lit8 1 1 C,DC,N,OV,Z
CP Wb,Ws Compare Wb with Ws (Wb – Ws) 1 1 C,DC,N,OV,Z
23 CP0 CP0 f Compare f with 0x0000 1 1 C,DC,N,OV,Z
CP0 Ws Compare Ws with 0x0000 1 1 C,DC,N,OV,Z
24 CPB CPB f Compare f with WREG, with Borrow 1 1 C,DC,N,OV,Z
CPB Wb,#lit8 Compare Wb with lit8, with Borrow 1 1 C,DC,N,OV,Z
CPB Wb,Ws Compare Wb with Ws, with Borrow
(Wb – Ws – C)
11C,DC,N,OV,Z
25 CPSEQ CPSEQ Wb,Wn Compare Wb with Wn, Skip if = 1 1
(2 or 3)
None
CPBEQ CPBEQ Wb,Wn,Expr Compare Wb with Wn, Branch if = 1 1 (5) None
26 CPSGT CPSGT Wb,Wn Compare Wb with Wn, Skip if > 1 1
(2 or 3)
None
CPBGT CPBGT Wb,Wn,Expr Compare Wb with Wn, Branch if > 1 1 (5) None
27 CPSLT CPSLT Wb,Wn Compare Wb with Wn, Skip if < 1 1
(2 or 3)
None
CPBLT Wb,Wn,Expr Compare Wb with Wn, Branch if < 1 1 (5) None
28 CPSNE CPSNE Wb,Wn Compare Wb with Wn, Skip if 11
(2 or 3)
None
CPBNE Wb,Wn,Expr Compare Wb with Wn, Branch if 11 (5) None
29 CTXTSWP CTXTSWP #1it3 Switch CPU Register Context to Context
Defined by lit3
12 None
30 CTXTSWP CTXTSWP Wn Switch CPU Register Context to Context
Defined by Wn
12 None
31 DAW.B DAW.B Wn Wn = Decimal Adjust Wn 1 1 C
32 DEC DEC f f = f – 1 1 1 C,DC,N,OV,Z
DEC f,WREG WREG = f – 1 1 1 C,DC,N,OV,Z
DEC Ws,Wd Wd = Ws – 1 1 1 C,DC,N,OV,Z
33 DEC2 DEC2 f f = f – 2 1 1 C,DC,N,OV,Z
DEC2 f,WREG WREG = f – 2 1 1 C,DC,N,OV,Z
DEC2 Ws,Wd Wd = Ws – 2 1 1 C,DC,N,OV,Z
34 DISI DISI #lit14 Disable Interrupts for k Instruction Cycles 1 1 None
35 DIVF DIVF Wm,Wn Signed 16/16-bit Fractional Divide 1 18 N,Z,C,OV
36 DIV.S(2)DIV.S Wm,Wn Signed 16/16-bit Integer Divide 1 18 N,Z,C,OV
DIV.SD Wm,Wn Signed 32/16-bit Integer Divide 1 18 N,Z,C,OV
37 DIV.U(2)DIV.U Wm,Wn Unsigned 16/16-bit Integer Divide 1 18 N,Z,C,OV
DIV.UD Wm,Wn Unsigned 32/16-bit Integer Divide 1 18 N,Z,C,OV
38 DIVF2(2)DIVF2 Wm,Wn Signed 16/16-bit Fractional Divide
(W1:W0 preserved)
1 6 N,Z,C,OV
39 DIV2.S(2)DIV2.S Wm,Wn Signed 16/16-bit Integer Divide
(W1:W0 preserved)
1 6 N,Z,C,OV
DIV2.SD Wm,Wn Signed 32/16-bit Integer Divide
(W1:W0 preserved)
1 6 N,Z,C,OV
40 DIV2.U(2)DIV2.U Wm,Wn Unsigned 16/16-bit Integer Divide
(W1:W0 preserved)
1 6 N,Z,C,OV
DIV2.UD Wm,Wn Unsigned 32/16-bit Integer Divide
(W1:W0 preserved)
1 6 N,Z,C,OV
41 DO DO #lit15,Expr Do Code to PC + Expr, lit15 + 1 Times 2 2 None
DO Wn,Expr Do code to PC + Expr, (Wn) + 1 Times 2 2 None
TABLE 31-2: INSTRUCTION SET OVERVIEW (CONTINUED)
Base
Instr
#
Assembly
Mnemonic Assembly Syntax Description # of
Words
# of
Cycles(1)Status Flags
Affected
Note 1: Read and Read-Modify-Write (e.g., bit operations and logical operations) on non-CPU SFRs incur an additional instruction cycle.
2: The divide instructions must be preceded with a “REPEAT #5” instruction, such that they are executed six consecutive times.
2017-2018 Microchip Technology Inc. DS70005349E-page 539
dsPIC33CK256MP508 FAMILY
42 ED ED Wm*Wm,Acc,Wx,Wy,Wxd Euclidean Distance (no accumulate) 1 1 OA,OB,OAB,
SA,SB,SAB
43 EDAC EDAC Wm*Wm,Acc,Wx,Wy,Wxd Euclidean Distance 1 1 OA,OB,OAB,
SA,SB,SAB
44 EXCH EXCH Wns,Wnd Swap Wns with Wnd 1 1 None
46 FBCL FBCL Ws,Wnd Find Bit Change from Left (MSb) Side 1 1 C
47 FF1L FF1L Ws,Wnd Find First One from Left (MSb) Side 1 1 C
48 FF1R FF1R Ws,Wnd Find First One from Right (LSb) Side 1 1 C
49 FLIM FLIM Wb, Ws Force Data (Upper and Lower) Range Limit
without Limit Excess Result
1 1 N,Z,OV
FLIM.V Wb, Ws, Wd Force Data (Upper and Lower) Range Limit
with Limit Excess Result
1 1 N,Z,OV
50 GOTO GOTO Expr Go to Address 2 4 None
GOTO Wn Go to Indirect 1 4 None
GOTO.L Wn Go to Indirect (long address) 1 4 None
51 INC INC f f = f + 1 1 1 C,DC,N,OV,Z
INC f,WREG WREG = f + 1 1 1 C,DC,N,OV,Z
INC Ws,Wd Wd = Ws + 1 1 1 C,DC,N,OV,Z
52 INC2 INC2 f f = f + 2 1 1 C,DC,N,OV,Z
INC2 f,WREG WREG = f + 2 1 1 C,DC,N,OV,Z
INC2 Ws,Wd Wd = Ws + 2 1 1 C,DC,N,OV,Z
53 IOR IOR f f = f .IOR. WREG 1 1 N,Z
IOR f,WREG WREG = f .IOR. WREG 1 1 N,Z
IOR #lit10,Wn Wd = lit10 .IOR. Wd 1 1 N,Z
IOR Wb,Ws,Wd Wd = Wb .IOR. Ws 1 1 N,Z
IOR Wb,#lit5,Wd Wd = Wb .IOR. lit5 1 1 N,Z
54 LAC LAC Wso,#Slit4,Acc Load Accumulator 1 1 OA,OB,OAB,
SA,SB,SAB
LAC.D Wso, #Slit4, Acc Load Accumulator Double 1 2 OA,SA,OB,SB
56 LNK LNK #lit14 Link Frame Pointer 1 1 SFA
57 LSR LSR f f = Logical Right Shift f 1 1 C,N,OV,Z
LSR f,WREG WREG = Logical Right Shift f 1 1 C,N,OV,Z
LSR Ws,Wd Wd = Logical Right Shift Ws 1 1 C,N,OV,Z
LSR Wb,Wns,Wnd Wnd = Logical Right Shift Wb by Wns 1 1 N,Z
LSR Wb,#lit5,Wnd Wnd = Logical Right Shift Wb by lit5 1 1 N,Z
58 MAC MAC Wm*Wn,Acc,Wx,Wxd,Wy,Wyd,
AWB
Multiply and Accumulate 1 1 OA,OB,OAB,
SA,SB,SAB
MAC Wm*Wm,Acc,Wx,Wxd,Wy,Wyd Square and Accumulate 1 1 OA,OB,OAB,
SA,SB,SAB
59 MAX MAX Acc Force Data Maximum Range Limit 1 1 N,OV,Z
MAX.V Acc, Wnd Force Data Maximum Range Limit with Result 1 1 N,OV,Z
60 MIN MIN Acc If Accumulator A Less than B Load
Accumulator with B or vice versa
1 1 N,OV,Z
MIN.V Acc, Wd If Accumulator A Less than B Accumulator
Force Minimum Data Range Limit with Limit
Excess Result
1 1 N,OV,Z
MINZ Acc Accumulator Force Minimum Data Range Limit 1 1 N,OV,Z
MINZ.V Acc, Wd Accumulator Force Minimum Data Range
Limit with Limit Excess Result
1 1 N,OV,Z
TABLE 31-2: INSTRUCTION SET OVERVIEW (CONTINUED)
Base
Instr
#
Assembly
Mnemonic Assembly Syntax Description # of
Words
# of
Cycles(1)Status Flags
Affected
Note 1: Read and Read-Modify-Write (e.g., bit operations and logical operations) on non-CPU SFRs incur an additional instruction cycle.
2: The divide instructions must be preceded with a “REPEAT #5” instruction, such that they are executed six consecutive times.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 540 2017-2018 Microchip Technology Inc.
61 MOV MOV f,Wn Move f to Wn 1 1 None
MOV f Move f to f 1 1 None
MOV f,WREG Move f to WREG 1 1 None
MOV #lit16,Wn Move 16-bit Literal to Wn 1 1 None
MOV.b #lit8,Wn Move 8-bit Literal to Wn 1 1 None
MOV Wn,f Move Wn to f 1 1 None
MOV Wso,Wdo Move Ws to Wd 1 1 None
MOV WREG,f Move WREG to f 1 1 None
MOV.D Wns,Wd Move Double from W(ns):W(ns + 1) to Wd 1 2 None
MOV.D Ws,Wnd Move Double from Ws to W(nd + 1):W(nd) 1 2 None
62 MOVPAG MOVPAG #lit10,DSRPAG Move 10-bit Literal to DSRPAG 1 1 None
MOVPAG #lit8,TBLPAG Move 8-bit Literal to TBLPAG 1 1 None
MOVPAG Ws, DSRPAG Move Ws<9:0> to DSRPAG 1 1 None
MOVPAG Ws, TBLPAG Move Ws<7:0> to TBLPAG 1 1 None
64 MOVSAC MOVSAC Acc,Wx,Wxd,Wy,Wyd,AWB Prefetch and Store Accumulator 1 1 None
65 MPY MPY Wm*Wn,Acc,Wx,Wxd,Wy,Wyd Multiply Wm by Wn to Accumulator 1 1 OA,OB,OAB,
SA,SB,SAB
MPY Wm*Wm,Acc,Wx,Wxd,Wy,Wyd Square Wm to Accumulator 1 1 OA,OB,OAB,
SA,SB,SAB
66 MPY.N MPY.N Wm*Wn,Acc,Wx,Wxd,Wy,Wyd -(Multiply Wm by Wn) to Accumulator 1 1 None
67 MSC MSC Wm*Wm,Acc,Wx,Wxd,Wy,Wyd,
AWB
Multiply and Subtract from Accumulator 1 1 OA,OB,OAB,
SA,SB,SAB
68 MUL MUL.SS Wb,Ws,Wnd {Wnd + 1, Wnd} = Signed(Wb) * Signed(Ws) 1 1 None
MUL.SS Wb,Ws,Acc Accumulator = Signed(Wb) * Signed(Ws) 1 1 None
MUL.SU Wb,Ws,Wnd {Wnd + 1, Wnd} = Signed(Wb) * Unsigned(Ws) 1 1 None
MUL.SU Wb,Ws,Acc Accumulator = Signed(Wb) * Unsigned(Ws) 1 1 None
MUL.SU Wb,#lit5,Acc Accumulator = Signed(Wb) * Unsigned(lit5) 1 1 None
MUL.US Wb,Ws,Wnd {Wnd + 1, Wnd} = Unsigned(Wb) * Signed(Ws) 1 1 None
MUL.US Wb,Ws,Acc Accumulator = Unsigned(Wb) * Signed(Ws) 1 1 None
MUL.UU Wb,Ws,Wnd {Wnd + 1, Wnd} = Unsigned(Wb) *
Unsigned(Ws)
11 None
MUL.UU Wb,#lit5,Acc Accumulator = Unsigned(Wb) * Unsigned(lit5) 1 1 None
MUL.UU Wb,Ws,Acc Accumulator = Unsigned(Wb) * Unsigned(Ws) 1 1 None
MULW.SS Wb,Ws,Wnd Wnd = Signed(Wb) * Signed(Ws) 1 1 None
MULW.SU Wb,Ws,Wnd Wnd = Signed(Wb) * Unsigned(Ws) 1 1 None
MULW.US Wb,Ws,Wnd Wnd = Unsigned(Wb) * Signed(Ws) 1 1 None
MULW.UU Wb,Ws,Wnd Wnd = Unsigned(Wb) * Unsigned(Ws) 1 1 None
MUL.SU Wb,#lit5,Wnd {Wnd + 1, Wnd} = Signed(Wb) * Unsigned(lit5) 1 1 None
MUL.SU Wb,#lit5,Wnd Wnd = Signed(Wb) * Unsigned(lit5) 1 1 None
MUL.UU Wb,#lit5,Wnd {Wnd + 1, Wnd} = Unsigned(Wb) *
Unsigned(lit5)
11 None
MUL.UU Wb,#lit5,Wnd Wnd = Unsigned(Wb) * Unsigned(lit5) 1 1 None
MUL f W3:W2 = f * WREG 1 1 None
TABLE 31-2: INSTRUCTION SET OVERVIEW (CONTINUED)
Base
Instr
#
Assembly
Mnemonic Assembly Syntax Description # of
Words
# of
Cycles(1)Status Flags
Affected
Note 1: Read and Read-Modify-Write (e.g., bit operations and logical operations) on non-CPU SFRs incur an additional instruction cycle.
2: The divide instructions must be preceded with a “REPEAT #5” instruction, such that they are executed six consecutive times.
2017-2018 Microchip Technology Inc. DS70005349E-page 541
dsPIC33CK256MP508 FAMILY
69 NEG NEG Acc Negate Accumulator 1 1 OA,OB,OAB,
SA,SB,SAB
NEG f f = f + 1 1 1 C,DC,N,OV,Z
NEG f,WREG WREG = f + 1 1 1 C,DC,N,OV,Z
NEG Ws,Wd Wd = Ws + 1 1 1 C,DC,N,OV,Z
70 NOP NOP No Operation 1 1 None
NOPR No Operation 1 1 None
71 NORM NORM Acc, Wd Normalize Accumulator 1 1 N,OV,Z
72 POP POP f Pop f from Top-of-Stack (TOS) 1 1 None
POP Wdo Pop from Top-of-Stack (TOS) to Wdo 1 1 None
POP.D Wnd Pop from Top-of-Stack (TOS) to
W(nd):W(nd + 1)
12 None
POP.S Pop Shadow Registers 1 1 All
73 PUSH PUSH f Push f to Top-of-Stack (TOS) 1 1 None
PUSH Wso Push Wso to Top-of-Stack (TOS) 1 1 None
PUSH.D Wns Push W(ns):W(ns + 1) to Top-of-Stack (TOS) 1 2 None
PUSH.S Push Shadow Registers 1 1 None
74 PWRSAV PWRSAV #lit1 Go into Sleep or Idle mode 1 1 WDTO,Sleep
75 RCALL RCALL Expr Relative Call 1 4 SFA
RCALL Wn Computed Call 1 4 SFA
76 REPEAT REPEAT #lit15 Repeat Next Instruction lit15 + 1 times 1 1 None
REPEAT Wn Repeat Next Instruction (Wn) + 1 times 1 1 None
77 RESET RESET Software Device Reset 1 1 None
78 RETFIE RETFIE Return from Interrupt 1 6 (5) SFA
79 RETLW RETLW #lit10,Wn Return with Literal in Wn 1 6 (5) SFA
80 RETURN RETURN Return from Subroutine 1 6 (5) SFA
81 RLC RLC f f = Rotate Left through Carry f 1 1 C,N,Z
RLC f,WREG WREG = Rotate Left through Carry f 1 1 C,N,Z
RLC Ws,Wd Wd = Rotate Left through Carry Ws 1 1 C,N,Z
82 RLNC RLNC f f = Rotate Left (No Carry) f 1 1 N,Z
RLNC f,WREG WREG = Rotate Left (No Carry) f 1 1 N,Z
RLNC Ws,Wd Wd = Rotate Left (No Carry) Ws 1 1 N,Z
83 RRC RRC f f = Rotate Right through Carry f 1 1 C,N,Z
RRC f,WREG WREG = Rotate Right through Carry f 1 1 C,N,Z
RRC Ws,Wd Wd = Rotate Right through Carry Ws 1 1 C,N,Z
84 RRNC RRNC f f = Rotate Right (No Carry) f 1 1 N,Z
RRNC f,WREG WREG = Rotate Right (No Carry) f 1 1 N,Z
RRNC Ws,Wd Wd = Rotate Right (No Carry) Ws 1 1 N,Z
85 SAC SAC Acc,#Slit4,Wdo Store Accumulator 1 1 None
SAC.R Acc,#Slit4,Wdo Store Rounded Accumulator 1 1 None
86 SE SE Ws,Wnd Wnd = Sign-Extended Ws 1 1 C,N,Z
87 SETM SETM f f = 0xFFFF 1 1 None
SETM WREG WREG = 0xFFFF 1 1 None
SETM Ws Ws = 0xFFFF 1 1 None
88 SFTAC SFTAC Acc,Wn Arithmetic Shift Accumulator by (Wn) 1 1 OA,OB,OAB,
SA,SB,SAB
SFTAC Acc,#Slit6 Arithmetic Shift Accumulator by Slit6 1 1 OA,OB,OAB,
SA,SB,SAB
TABLE 31-2: INSTRUCTION SET OVERVIEW (CONTINUED)
Base
Instr
#
Assembly
Mnemonic Assembly Syntax Description # of
Words
# of
Cycles(1)Status Flags
Affected
Note 1: Read and Read-Modify-Write (e.g., bit operations and logical operations) on non-CPU SFRs incur an additional instruction cycle.
2: The divide instructions must be preceded with a “REPEAT #5” instruction, such that they are executed six consecutive times.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 542 2017-2018 Microchip Technology Inc.
89 SL SL f f = Left Shift f 1 1 C,N,OV,Z
SL f,WREG WREG = Left Shift f 1 1 C,N,OV,Z
SL Ws,Wd Wd = Left Shift Ws 1 1 C,N,OV,Z
SL Wb,Wns,Wnd Wnd = Left Shift Wb by Wns 1 1 N,Z
SL Wb,#lit5,Wnd Wnd = Left Shift Wb by lit5 1 1 N,Z
91 SUB SUB Acc Subtract Accumulators 1 1 OA,OB,OAB,
SA,SB,SAB
SUB f f = f – WREG 1 1 C,DC,N,OV,Z
SUB f,WREG WREG = f – WREG 1 1 C,DC,N,OV,Z
SUB #lit10,Wn Wn = Wn – lit10 1 1 C,DC,N,OV,Z
SUB Wb,Ws,Wd Wd = Wb – Ws 1 1 C,DC,N,OV,Z
SUB Wb,#lit5,Wd Wd = Wb – lit5 1 1 C,DC,N,OV,Z
92 SUBB SUBB f f = f – WREG – (C) 1 1 C,DC,N,OV,Z
SUBB f,WREG WREG = f – WREG – (C) 1 1 C,DC,N,OV,Z
SUBB #lit10,Wn Wn = Wn – lit10 – (C) 1 1 C,DC,N,OV,Z
SUBB Wb,Ws,Wd Wd = Wb – Ws – (C) 1 1 C,DC,N,OV,Z
SUBB Wb,#lit5,Wd Wd = Wb – lit5 – (C) 1 1 C,DC,N,OV,Z
93 SUBR SUBR f f = WREG – f 1 1 C,DC,N,OV,Z
SUBR f,WREG WREG = WREG – f 1 1 C,DC,N,OV,Z
SUBR Wb,Ws,Wd Wd = Ws – Wb 1 1 C,DC,N,OV,Z
SUBR Wb,#lit5,Wd Wd = lit5 – Wb 1 1 C,DC,N,OV,Z
94 SUBBR SUBBR f f = WREG – f – (C) 1 1 C,DC,N,OV,Z
SUBBR f,WREG WREG = WREG – f – (C) 1 1 C,DC,N,OV,Z
SUBBR Wb,Ws,Wd Wd = Ws – Wb – (C) 1 1 C,DC,N,OV,Z
SUBBR Wb,#lit5,Wd Wd = lit5 – Wb – (C) 1 1 C,DC,N,OV,Z
95 SWAP SWAP.b Wn Wn = Nibble Swap Wn 1 1 None
SWAP Wn Wn = Byte Swap Wn 1 1 None
96 TBLRDH TBLRDH Ws,Wd Read Prog<23:16> to Wd<7:0> 1 5 None
97 TBLRDL TBLRDL Ws,Wd Read Prog<15:0> to Wd 1 5 None
98 TBLWTH TBLWTH Ws,Wd Write Ws<7:0> to Prog<23:16> 1 2 None
99 TBLWTL TBLWTL Ws,Wd Write Ws to Prog<15:0> 1 2 None
101 ULNK ULNK Unlink Frame Pointer 1 1 SFA
104 XOR XOR f f = f .XOR. WREG 1 1 N,Z
XOR f,WREG WREG = f .XOR. WREG 1 1 N,Z
XOR #lit10,Wn Wd = lit10 .XOR. Wd 1 1 N,Z
XOR Wb,Ws,Wd Wd = Wb .XOR. Ws 1 1 N,Z
XOR Wb,#lit5,Wd Wd = Wb .XOR. lit5 1 1 N,Z
105 ZE ZE Ws,Wnd Wnd = Zero-Extend Ws 1 1 C,Z,N
TABLE 31-2: INSTRUCTION SET OVERVIEW (CONTINUED)
Base
Instr
#
Assembly
Mnemonic Assembly Syntax Description # of
Words
# of
Cycles(1)Status Flags
Affected
Note 1: Read and Read-Modify-Write (e.g., bit operations and logical operations) on non-CPU SFRs incur an additional instruction cycle.
2: The divide instructions must be preceded with a “REPEAT #5” instruction, such that they are executed six consecutive times.
2017-2018 Microchip Technology Inc. DS70005349E-page 543
dsPIC33CK256MP508 FAMILY
32.0 DEVELOPMENT SUPPORT
The PIC® microcontrollers (MCU) and dsPIC® digital
signal controllers (DSC) are supported with a full range
of software and hardware development tools:
• Integrated Development Environment
- MPLAB® X IDE Software
• Compilers/Assemblers/Linkers
- MPLAB XC Compiler
- MPASMTM Assembler
-MPLINK
TM Object Linker/
MPLIBTM Object Librarian
- MPLAB Assembler/Linker/Librarian for
Various Device Families
• Simulators
- MPLAB X SIM Software Simulator
•Emulators
- MPLAB REAL ICE™ In-Circuit Emulator
• In-Circuit Debuggers/Programmers
- MPLAB ICD 3
- PICkit™ 3
• Device Programmers
- MPLAB PM3 Device Programmer
• Low-Cost Demonstration/Development Boards,
Evaluation Kits and Starter Kits
• Third-party development tools
32.1 MPLAB X Integrated Development
Environment Software
The MPLAB X IDE is a single, unified graphical user
interface for Microchip and third-party software, and
hardware development tool that runs on Windows®,
Linux and Mac OS® X. Based on the NetBeans IDE,
MPLAB X IDE is an entirely new IDE with a host of free
software components and plug-ins for high-
performance application development and debugging.
Moving between tools and upgrading from software
simulators to hardware debugging and programming
tools is simple with the seamless user interface.
With complete project management, visual call graphs,
a configurable watch window and a feature-rich editor
that includes code completion and context menus,
MPLAB X IDE is flexible and friendly enough for new
users. With the ability to support multiple tools on
multiple projects with simultaneous debugging, MPLAB
X IDE is also suitable for the needs of experienced
users.
Feature-Rich Editor:
• Color syntax highlighting
• Smart code completion makes suggestions and
provides hints as you type
• Automatic code formatting based on user-defined
rules
• Live parsing
User-Friendly, Customizable Interface:
• Fully customizable interface: toolbars, toolbar
buttons, windows, window placement, etc.
• Call graph window
Project-Based Workspaces:
• Multiple projects
• Multiple tools
• Multiple configurations
• Simultaneous debugging sessions
File History and Bug Tracking:
• Local file history feature
• Built-in support for Bugzilla issue tracker
dsPIC33CK256MP508 FAMILY
DS70005349E-page 544 2017-2018 Microchip Technology Inc.
32.2 MPLAB XC Compilers
The MPLAB XC Compilers are complete ANSI C
compilers for all of Microchip’s 8, 16 and 32-bit MCU
and DSC devices. These compilers provide powerful
integration capabilities, superior code optimization and
ease of use. MPLAB XC Compilers run on Windows,
Linux or MAC OS X.
For easy source level debugging, the compilers provide
debug information that is optimized to the MPLAB X
IDE.
The free MPLAB XC Compiler editions support all
devices and commands, with no time or memory
restrictions, and offer sufficient code optimization for
most applications.
MPLAB XC Compilers include an assembler, linker and
utilities. The assembler generates relocatable object
files that can then be archived or linked with other relo-
catable object files and archives to create an execut-
able file. MPLAB XC Compiler uses the assembler to
produce its object file. Notable features of the assem-
bler include:
• Support for the entire device instruction set
• Support for fixed-point and floating-point data
• Command-line interface
• Rich directive set
• Flexible macro language
• MPLAB X IDE compatibility
32.3 MPASM Assembler
The MPASM Assembler is a full-featured, universal
macro assembler for PIC10/12/16/18 MCUs.
The MPASM Assembler generates relocatable object
files for the MPLINK Object Linker, Intel® standard HEX
files, MAP files to detail memory usage and symbol
reference, absolute LST files that contain source lines
and generated machine code, and COFF files for
debugging.
The MPASM Assembler features include:
• Integration into MPLAB X IDE projects
• User-defined macros to streamline
assembly code
• Conditional assembly for multipurpose
source files
• Directives that allow complete control over the
assembly process
32.4 MPLINK Object Linker/
MPLIB Object Librarian
The MPLINK Object Linker combines relocatable
objects created by the MPASM Assembler. It can link
relocatable objects from precompiled libraries, using
directives from a linker script.
The MPLIB Object Librarian manages the creation and
modification of library files of precompiled code. When
a routine from a library is called from a source file, only
the modules that contain that routine will be linked in
with the application. This allows large libraries to be
used efficiently in many different applications.
The object linker/library features include:
• Efficient linking of single libraries instead of many
smaller files
• Enhanced code maintainability by grouping
related modules together
• Flexible creation of libraries with easy module
listing, replacement, deletion and extraction
32.5 MPLAB Assembler, Linker and
Librarian for Various Device
Families
MPLAB Assembler produces relocatable machine
code from symbolic assembly language for PIC24,
PIC32 and dsPIC DSC devices. MPLAB XC Compiler
uses the assembler to produce its object file. The
assembler generates relocatable object files that can
then be archived or linked with other relocatable object
files and archives to create an executable file. Notable
features of the assembler include:
• Support for the entire device instruction set
• Support for fixed-point and floating-point data
• Command-line interface
• Rich directive set
• Flexible macro language
• MPLAB X IDE compatibility
2017-2018 Microchip Technology Inc. DS70005349E-page 545
dsPIC33CK256MP508 FAMILY
32.6 MPLAB X SIM Software Simulator
The MPLAB X SIM Software Simulator allows code
development in a PC-hosted environment by simulat-
ing the PIC MCUs and dsPIC DSCs on an instruction
level. On any given instruction, the data areas can be
examined or modified and stimuli can be applied from
a comprehensive stimulus controller. Registers can be
logged to files for further run-time analysis. The trace
buffer and logic analyzer display extend the power of
the simulator to record and track program execution,
actions on I/O, most peripherals and internal registers.
The MPLAB X SIM Software Simulator fully supports
symbolic debugging using the MPLAB XC Compilers,
and the MPASM and MPLAB Assemblers. The soft-
ware simulator offers the flexibility to develop and
debug code outside of the hardware laboratory envi-
ronment, making it an excellent, economical software
development tool.
32.7 MPLAB REAL ICE In-Circuit
Emulator System
The MPLAB REAL ICE In-Circuit Emulator System is
Microchip’s next generation high-speed emulator for
Microchip Flash DSC and MCU devices. It debugs and
programs all 8, 16 and 32-bit MCU, and DSC devices
with the easy-to-use, powerful graphical user interface of
the MPLAB X IDE.
The emulator is connected to the design engineer’s
PC using a high-speed USB 2.0 interface and is
connected to the target with either a connector
compatible with in-circuit debugger systems (RJ-11)
or with the new high-speed, noise tolerant, Low-
Voltage Differential Signal (LVDS) interconnection
(CAT5).
The emulator is field upgradable through future firmware
downloads in MPLAB X IDE. MPLAB REAL ICE offers
significant advantages over competitive emulators
including full-speed emulation, run-time variable
watches, trace analysis, complex breakpoints, logic
probes, a ruggedized probe interface and long (up to
three meters) interconnection cables.
32.8 MPLAB ICD 3 In-Circuit Debugger
System
The MPLAB ICD 3 In-Circuit Debugger System is
Microchip’s most cost-effective, high-speed hardware
debugger/programmer for Microchip Flash DSC and
MCU devices. It debugs and programs PIC Flash
microcontrollers and dsPIC DSCs with the powerful,
yet easy-to-use graphical user interface of the
MPLAB IDE.
The MPLAB ICD 3 In-Circuit Debugger probe is
connected to the design engineer’s PC using a high-
speed USB 2.0 interface and is connected to the target
with a connector compatible with the MPLAB ICD 2 or
MPLAB REAL ICE systems (RJ-11). MPLAB ICD 3
supports all MPLAB ICD 2 headers.
32.9 PICkit 3 In-Circuit Debugger/
Programmer
The MPLAB PICkit 3 allows debugging and program-
ming of PIC and dsPIC Flash microcontrollers at a most
affordable price point using the powerful graphical user
interface of the MPLAB IDE. The MPLAB PICkit 3 is
connected to the design engineer’s PC using a full-
speed USB interface and can be connected to the
target via a Microchip debug (RJ-11) connector (com-
patible with MPLAB ICD 3 and MPLAB REAL ICE). The
connector uses two device I/O pins and the Reset line
to implement in-circuit debugging and In-Circuit Serial
Programming™ (ICSP™).
32.10 MPLAB PM3 Device Programmer
The MPLAB PM3 Device Programmer is a universal,
CE compliant device programmer with programmable
voltage verification at VDDMIN and VDDMAX for
maximum reliability. It features a large LCD display
(128 x 64) for menus and error messages, and a mod-
ular, detachable socket assembly to support various
package types. The ICSP cable assembly is included
as a standard item. In Stand-Alone mode, the MPLAB
PM3 Device Programmer can read, verify and program
PIC devices without a PC connection. It can also set
code protection in this mode. The MPLAB PM3
connects to the host PC via an RS-232 or USB cable.
The MPLAB PM3 has high-speed communications and
optimized algorithms for quick programming of large
memory devices, and incorporates an MMC card for file
storage and data applications.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 546 2017-2018 Microchip Technology Inc.
32.11 Demonstration/Development
Boards, Evaluation Kits and
Starter Kits
A wide variety of demonstration, development and
evaluation boards for various PIC MCUs and dsPIC
DSCs allows quick application development on fully
functional systems. Most boards include prototyping
areas for adding custom circuitry and provide applica-
tion firmware and source code for examination and
modification.
The boards support a variety of features, including LEDs,
temperature sensors, switches, speakers, RS-232
interfaces, LCD displays, potentiometers and additional
EEPROM memory.
The demonstration and development boards can be
used in teaching environments, for prototyping custom
circuits and for learning about various microcontroller
applications.
In addition to the PICDEM™ and dsPICDEM™
demonstration/development board series of circuits,
Microchip has a line of evaluation kits and demonstra-
tion software for analog filter design, KEELOQ® security
ICs, CAN, IrDA®, PowerSmart battery management,
SEEVAL® evaluation system, Sigma-Delta ADC, flow
rate sensing, plus many more.
Also available are starter kits that contain everything
needed to experience the specified device. This usually
includes a single application and debug capability, all
on one board.
Check the Microchip web page (www.microchip.com)
for the complete list of demonstration, development
and evaluation kits.
32.12 Third-Party Development Tools
Microchip also offers a great collection of tools from
third-party vendors. These tools are carefully selected
to offer good value and unique functionality.
• Device Programmers and Gang Programmers
from companies, such as SoftLog and CCS
• Software Tools from companies, such as Gimpel
and Trace Systems
• Protocol Analyzers from companies, such as
Saleae and Total Phase
• Demonstration Boards from companies, such as
MikroElektronika, Digilent® and Olimex
• Embedded Ethernet Solutions from companies,
such as EZ Web Lynx, WIZnet and IPLogika®
2017-2018 Microchip Technology Inc. DS70005349E-page 547
dsPIC33CK256MP508 FAMILY
33.0 ELECTRICAL CHARACTERISTICS
This section provides an overview of the dsPIC33CK256MP508 family electrical characteristics. Additional information
will be provided in future revisions of this document as it becomes available.
Absolute maximum ratings for the dsPIC33CK256MP508 family are listed below. Exposure to these maximum rating
conditions for extended periods may affect device reliability. Functional operation of the device at these, or any other
conditions above the parameters indicated in the operation listings of this specification, is not implied.
Absolute Maximum Ratings(1)
Ambient temperature under bias.............................................................................................................-40°C to +125°C
Storage temperature .............................................................................................................................. -65°C to +150°C
Voltage on VDD with respect to VSS ......................................................................................................... -0.3V to +4.0V
Voltage on any pin that is not 5V tolerant with respect to VSS(3)..................................................... -0.3V to (VDD + 0.3V)
Voltage on any 5V tolerant pin with respect to VSS when VDD 3.0V(3)................................................... -0.3V to +5.5V
Voltage on any 5V tolerant pin with respect to Vss when VDD < 3.0V(3)................................................... -0.3V to +3.6V
Maximum current out of VSS pin ...........................................................................................................................300 mA
Maximum current into VDD pin(2)...........................................................................................................................300 mA
Maximum current sunk/sourced by any 4x I/O pin..................................................................................................15 mA
Maximum current sunk/sourced by any 8x I/O pin..................................................................................................25 mA
Maximum current sunk by all ports(2)....................................................................................................................200 mA
Note 1: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional operation of the device at those, or any other conditions
above those indicated in the operation listings of this specification, is not implied. Exposure to maximum
rating conditions for extended periods may affect device reliability.
2: Maximum allowable current is a function of device maximum power dissipation (see Tab l e 33-2).
3: See the “Pin Diagrams” section for the 5V tolerant pins.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 548 2017-2018 Microchip Technology Inc.
33.1 DC Characteristics
TABLE 33-1: OPERATING MIPS vs. VOLTAGE
VDD Range Temperature Range Maximum CPU Clock Frequency
3.0V to 3.6V -40°C to +85°C 100
3.0V to 3.6V -40°C to +125°C 100
TABLE 33-2: THERMAL OPERATING CONDITIONS
Rating Symbol Min. Max. Unit
Industrial Temperature Devices
Operating Junction Temperature Range TJ-40 +125 °C
Operating Ambient Temperature Range T
A-40 +85 °C
Extended Temperature Devices
Operating Junction Temperature Range TJ-40 +140 °C
Operating Ambient Temperature Range T
A-40 +125 °C
Power Dissipation:
Internal Chip Power Dissipation:
PINT = VDD x (IDD – IOH) PDPINT + PI/OW
I/O Pin Power Dissipation:
I/O = ({VDD – VOH} x IOH) + (VOL x IOL)
Maximum Allowed Power Dissipation PDMAX (TJ – TA)/JA W
TABLE 33-3: THERMAL PACKAGING CHARACTERISTICS(1)
Characteristic Symbol Typ. Unit
Package Thermal Resistance, 80-Pin TQFP 12x12x1 mm JA 50.67 °C/W
Package Thermal Resistance, 64-Pin TQFP 10x10x1.0 mm JA 45.7 °C/W
Package Thermal Resistance, 64-Pin QFN 9x9 mm JA 18.7 °C/W
Package Thermal Resistance, 48-Pin TQFP 7x7 mm JA 62.76 °C/W
Package Thermal Resistance, 48-Pin UQFN 6x6 mm JA 27.6 °C/W
Package Thermal Resistance, 36-Pin UQFN 5x5 mm JA 29.2 °C/W
Package Thermal Resistance, 28-Pin UQFN 6x6 mm JA 22.41 °C/W
Package Thermal Resistance, 28-Pin SSOP 5.30 mm JA 52.84 °C/W
Note 1: Junction to ambient thermal resistance, Theta-JA (JA) numbers are achieved by package simulations.
2017-2018 Microchip Technology Inc. DS70005349E-page 549
dsPIC33CK256MP508 FAMILY
TABLE 33-4: OPERATING VOLTAGE SPECIFICATIONS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)(1)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic Min. Typ. Max. Units Conditions
Operating Voltage
DC10 VDD Supply Voltage 3.0 — 3.6 V
DC16 VPOR VDD Start Voltage
to Ensure Internal
Power-on Reset Signal
——V
SS V
DC17 SVDD VDD Rise Rate
to Ensure Internal
Power-on Reset Signal
1.0 — — V/ms 0V-3V in 3 ms
BO10 VBOR BOR Event on VDD Transition
High-to-Low(2)
2.68 2.84 2.99 V
Note 1: Device is functional at VBORMIN < VDD < VDDMIN. Analog modules (ADC and comparators) may have
degraded performance.
2: Parameters are characterized but not tested.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 550 2017-2018 Microchip Technology Inc.
TABLE 33-5: OPERATING CURRENT (I
DD
)
(2)
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Parameter No. Typ.(1)Max. Units Conditions
DC20 7.76 10.7 mA -40°C
3.3V
10 MIPS (N1 = 1, N2 = 5, N3 = 2,
M = 50, FVCO = 400 MHz,
FPLLO = 40 MHz)
7.49 10 mA +25°C
7.82 15.5 mA +85°C
10.32 23.5 mA +125°C
DC21 10.36 13.1 mA -40°C
3.3V
20 MIPS (N1 = 1, N2 = 5, N3 = 1,
M = 50, FVCO = 400 MHz,
FPLLO = 80 MHz)
10.09 12.45 mA +25°C
10.42 17.5 mA +85°C
12.89 25.5 mA +125°C
DC22 14.54 17.45 mA -40°C
3.3V
40 MIPS (N1 = 1, N2 = 3, N3 = 1,
M = 60, FVCO = 480 MHz,
FPLLO = 160 MHz)
14.26 16.7 mA +25°C
14.58 22 mA +85°C
17.06 30 mA +125°C
DC23 22.2 25.4 mA -40°C
3.3V
70 MIPS (N1 = 1, N2 = 2, N3 = 1,
M = 70, FVCO = 560 MHz,
FPLLO = 280 MHz)
21.91 24.9 mA +25°C
22.21 30.75 mA +85°C
24.65 37.5 mA +125°C
DC24 27.36 30.7 mA -40°C
3.3V
90 MIPS (N1 = 1, N2 = 2, N3 = 1,
M = 90, FVCO = 720 MHz,
FPLLO = 360 MHz)
26.96 30.5 mA +25°C
26.68 35 mA +85°C
29.01 42 mA +125°C
DC25 27.14 30.9 mA -40°C
3.3V
100 MIPS (N1 = 1, N2 = 1,
N3 = 1, M = 50, F
VCO
= 400 MHz,
F
PLLO
= 400 MHz)
26.54 30.1 mA +25°C
26.79 35 mA +85°C
29.23 42.5 mA +125°C
Note 1: Data in the “Typ.” column are for design guidance only and are not tested.
2: Base Run current (IDD) is measured as follows:
• Oscillator is switched to EC+PLL mode in software
• OSC1 pin is driven with external 8 MHz square wave with levels from 0.3V to VDD – 0.3V
• OSC2 is configured as an I/O in the Configuration Words (OSCIOFCN (FOSC<2>) = 0)
• FSCM is disabled (FCKSM<1:0> (FOSC<7:6>) = 01)
• Watchdog Timer is disabled (FWDT<15> = 0 and WDTCONL<15> = 0)
• All I/O pins (except OSC1) are configured as outputs and driving low
• No peripheral modules are operating or being clocked (defined PMDx bits are all ‘1’s)
• JTAG is disabled (JTAGEN (FICD<5>) = 0)
•NOP instructions are executed in while(1) loop
2017-2018 Microchip Technology Inc. DS70005349E-page 551
dsPIC33CK256MP508 FAMILY
TABLE 33-6: IDLE CURRENT (IIDLE)(2)
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Parameter No. Typ.(1)Max. Units Conditions
DC40 6.41 8.47 mA -40°C
3.3V
10 MIPS (N1 = 1, N2 = 5, N3 = 2,
M = 50, FVCO = 400 MHz,
FPLLO = 40 MHz)
6.15 7.57 mA +25°C
6.45 13 mA +85°C
8.95 22 mA +125°C
DC41 7.31 10.1 mA -40°C
3.3V
20 MIPS (N1 = 1, N2 = 5, N3 = 1,
M = 50, FVCO = 400 MHz,
FPLLO = 80 MHz)
7.04 9.1 mA +25°C
7.36 14.75 mA +85°C
9.83 22.75 mA +125°C
DC42 9.4 12.3 mA -40°C
3.3V
40 MIPS (N1 = 1, N2 = 3, N3 = 1,
M = 60, FVCO = 480 MHz,
FPLLO = 160 MHz)
9.13 11.2 mA +25°C
9.45 16.5 mA +85°C
11.92 25 mA +125°C
DC43 12.39 15.3 mA -40°C
3.3V
70 MIPS (N1 = 1, N2 = 2, N3 = 1,
M = 70, FVCO = 560 MHz,
FPLLO = 280 MHz)
12.11 14.3 mA +25°C
12.43 19.75 mA +85°C
14.89 28.25 mA +125°C
DC44 14.78 17.85 mA -40°C
3.3V
90 MIPS (N1 = 1, N2 = 2, N3 = 1,
M = 90, FVCO = 720 MHz,
FPLLO = 360 MHz)
14.5 16.9 mA +25°C
14.81 22.5 mA +85°C
17.26 29.5 mA +125°C
DC45 14.44 17.55 mA -40°C
3.3V
100 MIPS (N1 = 1, N2 = 1, N3 = 1,
M = 50, FVCO = 400 MHz,
FPLLO = 400 MHz)
14.15 16.5 mA +25°C
14.46 22.25 mA +85°C
16.9 30 mA +125°C
Note 1: Data in the “Typ.” column are for design guidance only and are not tested.
2: Base Idle current (IIDLE) is measured as follows:
• Oscillator is switched to EC+PLL mode in software
• OSC1 pin is driven with external 8 MHz square wave with levels from 0.3V to VDD – 0.3V
• OSC2 is configured as an I/O in the Configuration Words (OSCIOFCN (FOSC<2>) = 0)
• FSCM is disabled (FCKSM<1:0> (FOSC<7:6>) = 01)
• Watchdog Timer is disabled (FWDT<15> = 0 and WDTCONL<15> = 0)
• All I/O pins (except OSC1) are configured as outputs and driving low
• No peripheral modules are operating or being clocked (defined PMDx bits are all ‘1’s)
• JTAG is disabled (JTAGEN (FICD<5>) = 0)
• Flash in standby with NVMSIDL (NVMCON<12>) = 1
dsPIC33CK256MP508 FAMILY
DS70005349E-page 552 2017-2018 Microchip Technology Inc.
TABLE 33-7: POWER-DOWN CURRENT (IPD)(2)
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Parameter
No. Characteristic Typ.(1)Max. Units Conditions
DC60 Base Power-Down Current 270 383 µA -40°C
3.3V
418.99 1000 µA +25°C
939.53 7250 µA +85°C
5.59 18.5 mA +125°C(3)
Note 1: Data in the “Typ.” column are for design guidance only and are not tested.
2: Base Sleep current (IPD) is measured as follows:
• OSC1 pin is driven with external 8 MHz square wave with levels from 0.3V to VDD – 0.3V
• OSC2 is configured as an I/O in the Configuration Words (OSCIOFCN (FOSC<2>) = 0)
• FSCM is disabled (FCKSM<1:0> (FOSC<7:6>) = 01)
• Watchdog Timer is disabled (FWDT<15> = 0 and WDTCONL<15> = 0)
• All I/O pins (except OSC1) are configured as outputs and driving low
• No peripheral modules are operating or being clocked (defined PMDx bits are all ‘1’s)
• JTAG is disabled (JTAGEN (FICD<5>) = 0)
• The regulators are in Standby mode (VREGS (RCON<8>) = 0
• The regulators are in Low-Power mode (LPWREN (VREGCON<15>) = 1
3: The regulators are in High-Power mode (LPWREN (VREGCON<15>) = 0.
TABLE 33-8: DOZE CURRENT (IDOZE)
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Parameter No. Typ.(1)Max. Doze
Ratio Units Conditions
DC70 18.19 20 1:2 mA -40°C
3.3V 70 MIPS
12.66 15 1:128 mA
17.54 20.15 1:2 mA +25°C
12.39 14.7 1:128 mA
17.85 25 1:2 mA +85°C
12.7 20 1:128 mA
20.32 32.5 1:2 mA +125°C
15.17 28.5 1:128 mA
DC71 22.3 25.55 1:2 mA -40°C
3.3V 100 MIPS
14.83 17.25 1:128 mA
21.86 25.05 1:2 mA +25°C
14.55 16.95 1:128 mA
22.16 30 1:2 mA +85°C
14.86 22 1:128 mA
24.62 36.5 1:2 mA +125°C
17.31 30 1:128 mA
Note 1: Data in the “Typ.” column are for design guidance only and are not tested.
2017-2018 Microchip Technology Inc. DS70005349E-page 553
dsPIC33CK256MP508 FAMILY
TABLE 33-9: WATCHDOG TIMER DELTA CURRENT (IWDT)(1)
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Parameter No. Typ. Max. Units Conditions
DC61 0.75 5 µA -40°C
3.3V
2.0 12 µA +25°C
3.88 24 µA +85°C
5.69 40 µA +125°C
Note 1: The IWDT current is the additional current consumed when the module is enabled. This current should be
added to the base IPD current. All parameters are characterized but not tested during manufacturing.
TABLE 33-10: PWM DELTA CURRENT(1)
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Parameter No. Typ. Max. Units Conditions
DC100 5.96 6.6 mA -40°C
3.3V
PWM Output Frequency = 500 kHz,
PWM Input (AFPLLO = 500 MHz)
(AVCO = 1000 MHz, PLLFBD = 125,
APLLDIV1 = 2)
5.99 6.7 mA +25°C
5.92 6.9 mA +85°C
5.47 7 mA +125°C
DC101 4.89 5.4 mA -40°C
3.3V
PWM Output Frequency = 500 kHz,
PWM Input (AFPLLO = 400 MHz),
(AVCO = 400 MHz, PLLFBD = 50,
APLLDIV1 = 1)
4.91 5.5 mA +25°C
4.85 5.7 mA +85°C
4.42 5.7 mA +125°C
DC102 2.77 3.7 mA -40°C
3.3V
PWM Output Frequency = 500 kHz,
PWM Input (AFPLLO = 200 MHz),
(AVCO = 400 MHz, PLLFBD = 50,
APLLDIV1 = 2)
2.75 3.7 mA +25°C
2.7 3.7 mA +85°C
2.26 3.7 mA +125°C
DC103 1.67 2 mA -40°C
3.3V
PWM Output Frequency = 500 kHz,
PWM Input (AFPLLO = 100 MHz),
(AVCO = 400 MHz, PLLFBD = 50,
APLLDIV1 = 4)
1.66 2.2 mA +25°C
1.63 2.3 mA +85°C
1.17 2.3 mA +125°C
Note 1: APLL current is not included. The APLL current will be the same if more than one PWM is running. Listed
delta currents are for only one PWM instance when HREN = 0 (PGxCONL<7>). All parameters are
characterized but not tested during manufacturing.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 554 2017-2018 Microchip Technology Inc.
TABLE 33-11: APLL DELTA CURRENT
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Parameter No. Typ. Max. Units Conditions(1)
DC110 5.93 6.6 mA -40°C
3.3V
AFPLLO = 500 MHz
(AVCO = 1000 MHz, PLLFBD = 125,
APLLDIV1 = 2)
5.95 7 mA +25°C
6.15 7.6 mA +85°C
7.15 9 mA +125°C
DC111 2.72 3.3 mA -40°C
3.3V
AFPLLO = 400 MHz
(AVCO = 400 MHz, PLLFBD = 50,
APLLDIV1 = 1)
2.74 3.7 mA +25°C
2.92 4.3 mA +85°C
3.87 5.6 mA +125°C
DC112 1.39 2.7 mA -40°C
3.3V
AFPLLO = 200 MHz
(AVCO = 400 MHz, PLLFBD = 50,
APLLDIV1 = 2)
1.49 2.7 mA +25°C
1.65 3 mA +85°C
2.6 4.4 mA +125°C
DC113 0.79 1.1 mA -40°C
3.3V
AFPLLO = 100 MHz
(AVCO = 400 MHz, PLLFBD = 50,
APLLDIV1 = 4)
0.84 1.4 mA +25°C
0.96 2.3 mA +85°C
1.93 3.6 mA +125°C
Note 1: The APLL current will be the same if more than one PWM or DAC is run to the APLL clock. All parameters
are characterized but not tested during manufacturing.
TABLE 33-12: ADC DELTA CURRENT(1)
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Parameter No. Typ. Max. Units Conditions
DC120 3.61 4 mA -40°C
3.3V TAD = 14.3 ns
(3.5 Msps conversion rate)
3.68 4.1 mA +25°C
3.69 4.2 mA +85°C
3.89 4.6 mA +125°C
Note 1: Shared core continuous conversion. T
AD = 14.3 nS (3.5 Msps conversion rate). Listed delta currents are
for only one ADC core. All parameters are characterized but not tested during manufacturing.
2017-2018 Microchip Technology Inc. DS70005349E-page 555
dsPIC33CK256MP508 FAMILY
TABLE 33-13: COMPARATOR + DAC DELTA CURRENT
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Parameter No. Typ. Max. Units Conditions
DC130 1.2 1.35 mA -40°C
3.3V AFPLLO @ 500 MHz(1)
1.23 1.65 mA +25°C
1.23 1.65 mA +85°C
1.24 1.65 mA +125°C
Note 1: APLL current is not included. Listed delta currents are for only one comparator + DAC instance. All
parameters are characterized but not tested during manufacturing.
TABLE 33-14: OP AMP DELTA CURRENT(1)
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Parameter No. Typ. Max. Units Conditions
DC140 0.25 1 mA -40°C
3.3V
0.27 1.1 mA +25°C
0.32 1.4 mA +85°C
0.46 1.7 mA +125°C
Note 1: Listed delta currents are for only one op amp instance. All parameters are characterized but not tested
during manufacturing.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 556 2017-2018 Microchip Technology Inc.
DI20
TABLE 33-15: I/O PIN INPUT SPECIFICATIONS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic Min.(5)Typ.(1)Max.(6)Units Conditions
VIL Input Low Voltage
DI10 Any I/O Pin and MCLR VSS —0.2VDD V
DI18 I/O Pins with SDAx, SCLx VSS —0.3 VDD V SMBus disabled
DI19 I/O Pins with SDAx, SCLx VSS — 0.8 V SMBus enabled
DI20 VIH Input High Voltage
I/O Pins Not 5V Tolerant(3)0.8 VDD —VDD V
5V Tolerant I/O Pins and MCLR(3)0.8 VDD —5.5V
5V Tolerant I/O Pins with SDAx, SCLx(3)0.8 VDD — 5.5 V SMBus disabled
5V Tolerant I/O Pins with SDAx, SCLx(3)2.1 — 5.5 V SMBus enabled
I/O Pins with SDAx,
SCLx Not 5V Tolerant(3)
0.8 VDD —VDD V SMBus disabled
I/O Pins with SDAx,
SCLx Not 5V Tolerant(3)
2.1 — VDD V SMBus enabled
DI30 ICNPU Input Change Notification
Pull-up Current(2,4)
175 360 545 µA VDD = 3.6V, VPIN = VSS
DI31 ICNPD Input Change Notification
Pull-Down Current(4)
65 215 360 µA VDD = 3.6V, VPIN = VDD
DI50 IIL Input Leakage Current(2)
I/O Pins 5V Tolerant(3)-700 — 700 nA
I/O Pins Not 5V Tolerant(3)-700 — 700 nA
MCLR -700 — 700 nA
OSCI -700 — 700 nA XT and HS modes
Note 1: Data in “Typ.” column is at 3.3V, +25°C unless otherwise stated.
2: Negative current is defined as current sourced by the pin.
3: See the “Pin Diagrams” section for the 5V tolerant I/O pins.
4: Characterized but not tested.
5: VPIN = VSS.
6: VPIN = VDD.
2017-2018 Microchip Technology Inc. DS70005349E-page 557
dsPIC33CK256MP508 FAMILY
TABLE 33-16: I/O PIN INPUT INJECTION CURRENT SPECIFICATIONS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic Min. Max. Units Conditions
DI60a IICL Input Low Injection Current 0-5
(1,4)mA All pins
DI60b IICH Input High Injection Current 0+5
(2,3,4)mA All pins, excepting all 5V tolerant
pins and SOSCI
DI60c IICT Total Input Injection Current (sum of
all I/O and control pins)(5)
-20 +20 mA Absolute instantaneous sum of all
± input injection currents from all
I/O pins
(| I
ICL | + | IICH |) IICT
Note 1: VIL Source < (VSS – 0.3).
2: VIH Source > (VDD + 0.3) for non-5V tolerant pins only.
3: 5V tolerant pins do not have an internal high-side diode to VDD, and therefore, cannot tolerate any
“positive” input injection current.
4: Injection currents can affect the ADC results.
5: Any number and/or combination of I/O pins, not excluded under IICL or IICH conditions, are permitted in the sum.
TABLE 33-17: I/O PIN OUTPUT SPECIFICATIONS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param. Symbol Characteristic Min. Typ. Max. Units Conditions
DO10 VOL Output Low Voltage
4x Sink Driver Pins
——0.42VVDD = 3.6V, IOL < 9 mA
Output Low Voltage
8x Sink Driver Pins(1)
——0.4VVDD = 3.6V, IOL < 11 mA
DO20 VOH Output High Voltage
4x Source Driver Pins
2.4 — — V VDD = 3.6V, IOH > -8 mA
Output High Voltage
8x Source Driver Pins(1)
2.4 — — V VDD = 3.6V, IOH > -12 mA
Note 1: The 8x sink/source pins are RB1, RC8, RC9 and RD8.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 558 2017-2018 Microchip Technology Inc.
TABLE 33-18: PROGRAM MEMORY
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic Min. Max. Units Conditions
Program Flash Memory
D130 EPCell Endurance 10,000 — E/W -40C to +125C
D131 VPR VDD for Read 3.0 3.6 V
D132b VPEW VDD for Self-Timed Write 3.0 3.6 V
D134 TRETD Characteristic Retention 20 — Year Provided no other specifications are
violated, -40C to +125C
D137a TPE Page Erase Time 15.3 16.82 ms TPE = 128,454 FRC cycles (Note 1)
D138a TWW Word Write Time 47.7 52.3 µs TWW = 400 FRC cycles (Note 1)
D139a TRW Row Write Time 2.0 2.2 ms TRW = 16,782 FRC cycles (Note 1)
Note 1: Other conditions: FRC = 8 MHz, TUN<5:0> = 011111 (for Minimum), TUN<5:0> = 100000 (for Maximum).
This parameter depends on the FRC accuracy (see Table 33-22) and the value of the FRC Oscillator
Tuning register (see Register 9-4). For complete details on calculating the Minimum and Maximum time,
see Section 5.3 “Programming Operations”.
2017-2018 Microchip Technology Inc. DS70005349E-page 559
dsPIC33CK256MP508 FAMILY
33.2 AC Characteristics and Timing Parameters
FIGURE 33-1: LOAD CONDITIONS FOR I/O SPECIFICATIONS
VDD/2
CL
RL
Pin
VSS
RL= 464
CL= 50 pF
dsPIC33CK256MP508 FAMILY
DS70005349E-page 560 2017-2018 Microchip Technology Inc.
FIGURE 33-2: EXTERNAL CLOCK TIMING
OSCI
CLKO
OS20 OS30 OS30
OS40
OS41
OS31
OS25
OS31
TABLE 33-19: EXTERNAL CLOCK TIMING REQUIREMENTS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Sym Characteristic Min. Typ.(1)Max. Units Conditions
OS10 FIN External CLKI Frequency DC — 64 MHz
Oscillator Crystal Frequency 3.5 — 10 MHz XT
10 — 32 MHz HS
OS20 TOSCI External Clock Period 15.63 — DC ns
OS25 TCY Instruction Cycle Time 10 — DC ns
OS30 TosL,
To s H
External Clock in (OSCI)
High or Low Time
0.45 x TOSC —0.55 x TOSC ns
OS31 TosR,
To s F
External Clock in (OSCI)
Rise or Fall Time
— — 5.2 ns When FIN = 64 MHz
OS40 TckR CLKO Rise Time(2,3) —5.4— ns
OS41 TckF CLKO Fall Time(2,3)—6.4— ns
OS42 GMExternal Oscillator
Transconductance(3)
2.7 — 4 mA/V XTCFG<1:0> = 00,
XTBST = 0
4 — 7 mA/V XTCFG<1:0> = 00,
XTBST = 1
4.5 — 7 mA/V XTCFG<1:0> = 01,
XTBST = 0
6 — 11.9 mA/V XTCFG<1:0> = 01,
XTBST = 1
5.9 — 9.7 mA/V XTCFG<1:0> = 10,
XTBST = 0
6.9 — 15.9 mA/V XTCFG<1:0> = 10,
XTBST = 1
6.7 — 12 mA/V XTCFG<1:0> = 11,
XTBST = 0
7.5 — 19 mA/V XTCFG<1:0> = 11,
XTBST = 1
Note 1: Data in “Typ.” column is at 3.3V, +25°C unless otherwise stated.
2: Measurements are taken in EC mode. The CLKO signal is measured on the OSCO pin.
3: This parameter is characterized but not tested in manufacturing.
2017-2018 Microchip Technology Inc. DS70005349E-page 561
dsPIC33CK256MP508 FAMILY
TABLE 33-20: PLL TIMING SPECIFICATIONS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic Min. Typ.(1)Max. Units Conditions
OS50 FPLLI PLL Voltage Controlled Oscillator
(VCO) Input Frequency Range
8(2)— 64 MHz ECPLL, XTPLL modes
OS51 FVCO On-Chip VCO System Frequency 400 — 1600 MHz
OS52 TLOCK PLL Start-up Time (Lock Time) — 125 — µs
Note 1: Data in “Typ.” column is at 3.3V, +25°C unless otherwise stated. Parameters are for design guidance only
and are not tested.
2: Inclusive of FRC Tolerance Specification F20a.
TABLE 33-21: AUXILIARY PLL TIMING SPECIFICATIONS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic Min. Typ.(1)Max. Units Conditions
OS50 AFPLLI APLL Voltage Controlled Oscillator
(VCO) Input Frequency Range
8(2)— 64 MHz ECPLL, XTPLL modes
OS51 AFVCO On-Chip VCO System Frequency 400 — 1600 MHz
OS52 TLOCK APLL Start-up Time (Lock Time) — 125 — µs
Note 1: Data in “Typ.” column is at 3.3V, +25°C unless otherwise stated. Parameters are for design guidance only
and are not tested.
2: Inclusive of FRC Tolerance Specification F20a.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 562 2017-2018 Microchip Technology Inc.
TABLE 33-22: INTERNAL FRC ACCURACY
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Characteristic Min. Max. Units Conditions
Internal FRC Accuracy @ FRC Frequency = 8 MHz(1)
F20aFRC -3+3%-40°C TA 0°C
-1.5 +1.5 % 0°C TA +85°C
-2 +2 % +85°C TA +125°C
F22 BFRC -17 +17 % -40°C T
A -125°C
Note 1: Frequency is calibrated at +25°C and 3.3V.
TABLE 33-23: INTERNAL LPRC ACCURACY
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Characteristic Min. Max. Units Conditions
LPRC @ 32 kHz
F21 LPRC -25 +25 % -40°C TA 0°C
-10 +10 % 0°C TA +85°C
-15 +15 % +85°C T
A +125°C
2017-2018 Microchip Technology Inc. DS70005349E-page 563
dsPIC33CK256MP508 FAMILY
FIGURE 33-3: I/O TIMING CHARACTERISTICS
FIGURE 33-4: BOR AND MASTER CLEAR RESET TIMING CHARACTERISTICS
Note: Refer to Figure 33-1 for load conditions.
I/O Pin
(Input)
I/O Pin
(Output)
DI35
Old Value New Value
DI40
DO31
DO32
TABLE 33-24: I/O TIMING REQUIREMENTS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature
-40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic Min. Typ.(1)Max. Units Conditions
DO31 TIOR Port Output Rise Time(2)—6.59.7ns
DO32 TIOF Port Output Fall Time(2)—3.24.2ns
DI35 TINP INTx Pin High or Low Time (input) 20 — — ns
DI40 TRBP CNx High or Low Time (input) 2 — — TCY
Note 1: Data in “Typ.” column is at 3.3V, +25°C unless otherwise stated.
2: This parameter is characterized but not tested in manufacturing.
MCLR
(SY20)
BOR
(SY30)
TMCLR
TBOR
Reset Sequence
CPU Starts Fetching Code
Various Delays (depending on configuration)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 564 2017-2018 Microchip Technology Inc.
TABLE 33-25: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER
TIMING REQUIREMENTS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic(1)Min. Typ.(2)Max. Units Conditions
SY00 TPU Power-up Period — 200 — µs FNOSC<2:0> are FRC
SY10 TOST Oscillator Start-up Time — 1024 TOSC ——TOSC = OSCI period
SY13 TIOZ I/O High-Impedance
from MCLR Low or
Watchdog Timer Reset
—1.5 —µs
SY20 TMCLR MCLR Pulse Width (low) 2 — — µs
SY30 TBOR BOR Pulse Width (low) 1 — — µs
SY35 TFSCM Fail-Safe Clock Monitor
Delay
— — 40 µs Clock fail to BFRC switch
SY37 T
OSCDFRC FRC Oscillator Start-up
Delay
— — 15 µs From POR event
SY38 T
OSCDLPRC LPRC Oscillator Start-up
Delay
— — 50 µs From Reset event
Note 1: These parameters are characterized but not tested in manufacturing.
2: Data in “Typ.” column is at 3.3V, +25°C unless otherwise stated.
2017-2018 Microchip Technology Inc. DS70005349E-page 565
dsPIC33CK256MP508 FAMILY
FIGURE 33-5: HIGH-SPEED PWMx MODULE FAULT TIMING CHARACTERISTICS
FIGURE 33-6: HIGH-SPEED PWMx MODULE TIMING CHARACTERISTICS
Fault Input
PWMx
MP30
MP20
(active-low)
PWMx
MP11 MP10
Note: Refer to Figure 33-1 for load conditions.
TABLE 33-26: HIGH-SPEED PWMx MODULE TIMING REQUIREMENTS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic(1)Min. Max. Units Conditions
MP00 FIN PWM Input Frequency — 500 MHz (Note 2)
MP10 TFPWM PWMx Output Fall Time — — ns See Parameter DO32
MP11 TRPWM PWMx Output Rise Time — — ns See Parameter DO31
MP20 TFD Fault Input to PWMx I/O Change — 26 ns PCI Inputs 19 through 22
MP30 TFH Fault Input Pulse Width 8 — ns
Note 1: These parameters are characterized but not tested in manufacturing.
2: Input frequency of 500 MHz must be used for High-Resolution mode.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 566 2017-2018 Microchip Technology Inc.
TABLE 33-27: SPIx MAXIMUM DATA/CLOCK RATE SUMMARY
FIGURE 33-7: SPIx MASTER MODE (HALF-DUPLEX, TRANSMIT ONLY, CKE = 0)
TIMING CHARACTERISTICS
SPI Master
Transmit Only (Half-
Duplex)
SPI Master
Transmit/Receive
(Full-Duplex)
SPI Slave
Transmit/Receive
(Full-Duplex)
CKE
Figure 33-7
Table 33-28 ——0
Figure 33-8
Table 33-28 ——1
—Figure 33-9
Table 33-29 —0
—Figure 33-10
Table 33-30 —1
——
Figure 33-11
Table 33-32 0
——
Figure 33-12
Table 33-33 1
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SP10
SP21SP20SP35
SP20SP21
MSb LSbBit 14 - - - - - -1
SP30, SP31SP30, SP31
Note: Refer to Figure 33-1 for load conditions.
2017-2018 Microchip Technology Inc. DS70005349E-page 567
dsPIC33CK256MP508 FAMILY
FIGURE 33-8: SPIx MASTER MODE (HALF-DUPLEX, TRANSMIT ONLY, CKE = 1)
TIMING CHARACTERISTICS
TABLE 33-28: SPIx MASTER MODE (HALF-DUPLEX, TRANSMIT ONLY) TIMING REQUIREMENTS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C T
A +125°C for Extended
Param
No. Symbol Characteristic(1)Min. Typ.(2)Max. Units Conditions
SP10 FscP Maximum SCKx Frequency — — 15 MHz Using PPS pins
— — 40 MHz SPIx dedicated pins
SP20 TscF SCKx Output Fall Time — — — ns See Parameter DO32
SP21 TscR SCKx Output Rise Time — — — ns See Parameter DO31
SP30 TdoF SDOx Data Output Fall Time — — — ns See Parameter DO32
SP31 TdoR SDOx Data Output Rise Time — — — ns See Parameter DO31
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid After
SCKx Edge
— 6 20 ns
SP36 TdiV2scH,
TdiV2scL
SDOx Data Output Setup to
First SCKx Edge
30 — — ns Using PPS pins
3 — — ns SPIx dedicated pins
Note 1: These parameters are characterized but not tested in manufacturing.
2: Data in “Typ.” column is at 3.3V, +25°C unless otherwise stated.
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SP21SP20
SP35
SP20SP21
MSb LSbBit 14 - - - - - -1
SP30, SP31
Note: Refer to Figure 33-1 for load conditions.
SP36
SP10
dsPIC33CK256MP508 FAMILY
DS70005349E-page 568 2017-2018 Microchip Technology Inc.
FIGURE 33-9: SPIx MASTER MODE (FULL-DUPLEX, CKE = 1, CKP = x, SMP = 1)
TIMING CHARACTERISTICS
TABLE 33-29: SPIx MASTER MODE (FULL-DUPLEX, CKE = 1, CKP = x, SMP = 1)
TIMING REQUIREMENTS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic(1)Min. Typ.(2)Max. Units Conditions
SP10 FscP Maximum SCKx Frequency — — 15 MHz Using PPS pins
— — 40 MHz SPIx dedicated pins
SP20 TscF SCKx Output Fall Time — — — ns See Parameter DO32
SP21 TscR SCKx Output Rise Time — — — ns See Parameter DO31
SP30 TdoF SDOx Data Output Fall
Time
— — — ns See Parameter DO32
SP31 TdoR SDOx Data Output Rise
Time
— — — ns See Parameter DO31
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid
After SCKx Edge
—620ns
SP36 TdoV2sc,
TdoV2scL
SDOx Data Output Setup
to First SCKx Edge
30 — — ns Using PPS pins
3 — — ns SPIx dedicated pins
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data
Input to SCKx Edge
30 — — ns Using PPS pins
10 — — ns SPIx dedicated pins
SP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data
Input to SCKx Edge
30 — — ns Using PPS pins
15 — — ns SPIx dedicated pins
Note 1: These parameters are characterized but not tested in manufacturing.
2: Data in “Typ.” column is at 3.3V, +25°C unless otherwise stated.
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SP21SP20
SP35
SP20SP21
MSb LSbBit 14 - - - - - -1
SP30, SP31
Note: Refer to Figure 33-1 for load conditions.
SP36
SP41
LSb InBit 14 - - - -1
SDIx
SP40
SP10
MSb In
2017-2018 Microchip Technology Inc. DS70005349E-page 569
dsPIC33CK256MP508 FAMILY
FIGURE 33-10: SPIx MASTER MODE (FULL-DUPLEX, CKE = 0, CKP = x, SMP = 1)
TIMING CHARACTERISTICS
TABLE 33-30: SPIx MASTER MODE (FULL-DUPLEX, CKE = 0, CKP = x, SMP = 1)
TIMING REQUIREMENTS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic(1)Min. Typ.(2)Max. Units Conditions
SP10 FscP Maximum SCKx Frequency — — 15 MHz Using PPS pins
— — 40 MHz SPIx dedicated pins
SP20 TscF SCKx Output Fall Time — — — ns See Parameter DO32
SP21 TscR SCKx Output Rise Time — — — ns See Parameter DO31
SP30 TdoF SDOx Data Output Fall Time — — — ns See Parameter DO32
SP31 TdoR SDOx Data Output Rise Time — — — ns See Parameter DO31
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid After
SCKx Edge
—620ns
SP36 TdoV2scH,
TdoV2scL
SDOx Data Output Setup to
First SCKx Edge
30 — — ns Using PPS pins
20 — — ns SPIx dedicated pins
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data
Input to SCKx Edge
30 — — ns Using PPS pins
10 — — ns SPIx dedicated pins
SP41 TscH2diL,
Ts c L 2 d i L
Hold Time of SDIx Data Input
to SCKx Edge
30 — — ns Using PPS pins
15 — — ns SPIx dedicated pins
Note 1: These parameters are characterized but not tested in manufacturing.
2: Data in “Typ.” column is at 3.3V, +25°C unless otherwise stated.
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SDIx
SP40 SP41
SP21SP20
SP35
SP20SP21
MSb LSbBit 14 - - - - - -1
LSb InBit 14 - - - -1
SP30, SP31SP30, SP31
SP36
SP10
MSb In
Note: Refer to Figure 33-1 for load conditions.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 570 2017-2018 Microchip Technology Inc.
FIGURE 33-11: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 0, CKP = x, SMP = 0)
TIMING CHARACTERISTICS
SSx
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SP50
SP40
SP41
SP30, SP31 SP51
SP35
MSb LSbBit 14 - - - - - -1
Bit 14 - - - -1 LSb In
SP52
SP73SP72
SP72SP73
Note: Refer to Figure 33-1 for load conditions.
SDIx
SP10
SP36
MSb In
2017-2018 Microchip Technology Inc. DS70005349E-page 571
dsPIC33CK256MP508 FAMILY
TABLE 33-31: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 0, CKP = x, SMP = 0)
TIMING REQUIREMENTS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic(1)Min. Typ.(2)Max. Units Conditions
SP10 FscP Maximum SCKx Input Frequency — — 15 MHz Using PPS pins
— — 40 MHz SPIx dedicated pins
SP72 TscF SCKx Input Fall Time — — — ns See Parameter DO32
SP73 TscR SCKx Input Rise Time — — — ns See Parameter DO31
SP30 TdoF SDOx Data Output Fall Time — — — ns See Parameter DO32
SP31 TdoR SDOx Data Output Rise Time — — — ns See Parameter DO31
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid After
SCKx Edge
—620ns
SP36 TdoV2scH,
TdoV2scL
SDOx Data Output Setup to
First SCKx Edge
30 — — ns Using PPS pins
20 — — ns SPIx dedicated pins
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input
to SCKx Edge
30 — — ns Using PPS pins
10 — — ns SPIx dedicated pins
SP41 TscH2diL,
Ts c L 2 d i L
Hold Time of SDIx Data Input
to SCKx Edge
30 — — ns Using PPS pins
15 — — ns SPIx dedicated pins
SP50 TssL2scH,
TssL2scL
SSx to SCKx or SCKx
Input
120 — — ns
SP51 TssH2doZ SSx to SDOx Output
High-Impedance
8 — 50 ns
SP52 TscH2ssH,
TscL2ssH
SSx After SCKx Edge 1.5 TCY + 40 — — ns
Note 1: These parameters are characterized but not tested in manufacturing.
2: Data in “Typ.” column is at 3.3V, +25°C unless otherwise stated.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 572 2017-2018 Microchip Technology Inc.
FIGURE 33-12: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 1, CKP = x, SMP = 0)
TIMING CHARACTERISTICS
SSx
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SP60
SDIx
SP30, SP31
MSb Bit 14 - - - - - -1 LSb
SP51
Bit 14 - - - -1 LSb In
SP52
SP73SP72
SP72SP73
SP40
SP41
Note: Refer to Figure 33-1 for load conditions.
SP36
SP50
SP10
SP35
MSb In
2017-2018 Microchip Technology Inc. DS70005349E-page 573
dsPIC33CK256MP508 FAMILY
TABLE 33-32: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 1, CKP = x, SMP = 0)
TIMING REQUIREMENTS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic(1)Min. Typ.(2)Max. Units Conditions
SP10 FscP Maximum SCKx Input
Frequency
— — 15 MHz Using PPS pins
— — 40 MHz SPIx dedicated pins
SP72 TscF SCKx Input Fall Time — — — ns See Parameter DO32
SP73 TscR SCKx Input Rise Time — — — ns See Parameter DO31
SP30 TdoF SDOx Data Output Fall Time — — — ns See Parameter DO32
SP31 TdoR SDOx Data Output Rise Time — — — ns See Parameter DO31
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid After
SCKx Edge
—620ns
SP36 TdoV2scH,
TdoV2scL
SDOx Data Output Setup to
First SCKx Edge
30 — — ns Using PPS pins
20 — — ns SPIx dedicated pins
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input
to SCKx Edge
30 — — ns Using PPS pins
10 — — ns SPIx dedicated pins
SP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input
to SCKx Edge
30 — — ns Using PPS pins
15 — — ns SPIx dedicated pins
SP50 TssL2scH,
TssL2scL
SSx to SCKx or SCKx
Input
120 — — ns
SP51 TssH2doZ SSx to SDOx Output
High-Impedance
8 — 50 ns
SP52 TscH2ssH,
TscL2ssH
SSx After SCKx Edge 1.5 TCY + 40 — — ns
SP60 TssL2doV SDOx Data Output Valid After
SSx Edge
— — 50 ns
Note 1: These parameters are characterized but not tested in manufacturing.
2: Data in “Typ.” column is at 3.3V, +25°C unless otherwise stated.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 574 2017-2018 Microchip Technology Inc.
FIGURE 33-13: I2Cx BUS START/STOP BITS TIMING CHARACTERISTICS (MASTER MODE)
FIGURE 33-14: I2Cx BUS DATA TIMING CHARACTERISTICS (MASTER MODE)
SCLx
SDAx
Start
Condition
Stop
Condition
Note: Refer to Figure 33-1 for load conditions.
IM31
IM30
IM34
IM33
IM11
IM10 IM33
IM11
IM10
IM20
IM25
IM40 IM40 IM45
IM21
SCLx
SDAx
In
SDAx
Out
Note: Refer to Figure 33-1 for load conditions.
IM26
2017-2018 Microchip Technology Inc. DS70005349E-page 575
dsPIC33CK256MP508 FAMILY
TABLE 33-33: I2Cx BUS DATA TIMING REQUIREMENTS (MASTER MODE)
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic(4)Min.(1)Max. Units Conditions
IM10 TLO:SCL Clock Low Time 100 kHz mode TCY (BRG + 1) — µs
400 kHz mode TCY (BRG + 1) — µs
1 MHz mode(2)TCY (BRG + 1) — µs
IM11 THI:SCL Clock High Time 100 kHz mode TCY (BRG + 1) — µs
400 kHz mode TCY (BRG + 1) — µs
1 MHz mode(2)TCY (BRG + 1) — µs
IM20 TF:SCL SDAx and SCLx
Fall Time
100 kHz mode — 300 ns CB is specified to be
from 10 to 400 pF
400 kHz mode 20 x (VDD/5.5V) 300 ns
1 MHz mode(2)20 x (VDD/5.5V) 120 ns
IM21 TR:SCL SDAx and SCLx
Rise Time
100 kHz mode — 1000 ns CB is specified to be
from 10 to 400 pF
400 kHz mode 20 + 0.1 CB300 ns
1 MHz mode(2)— 120 ns
IM25 TSU:DAT Data Input
Setup Time
100 kHz mode 250 — ns
400 kHz mode 100 — ns
1 MHz mode(2)50 — ns
IM26 THD:DAT Data Input
Hold Time
100 kHz mode 0 — µs
400 kHz mode 0 0.9 µs
1 MHz mode(2)00.3µs
IM30 TSU:STA Start Condition
Setup Time
100 kHz mode TCY (BRG + 1) — µs Only relevant for
Repeated Start
condition
400 kHz mode T
CY (BRG + 1) — µs
1 MHz mode(2)TCY (BRG + 1) — µs
IM31 THD:STA Start Condition
Hold Time
100 kHz mode TCY (BRG + 1) — µs After this period, the
first clock pulse is
generated
400 kHz mode T
CY (BRG + 1) — µs
1 MHz mode(2)TCY (BRG + 1) — µs
IM33 TSU:STO Stop Condition
Setup Time
100 kHz mode TCY (BRG + 1) — µs
400 kHz mode T
CY (BRG + 1) — µs
1 MHz mode(2)TCY (BRG + 1) — µs
IM34 THD:STO Stop Condition
Hold Time
100 kHz mode TCY (BRG + 1) — µs
400 kHz mode T
CY (BRG + 1) — µs
1 MHz mode(2)TCY (BRG + 1) — µs
IM40 TAA:SCL Output Valid
from Clock
100 kHz mode — 3450 ns
400 kHz mode — 900 ns
1 MHz mode(2)— 450 ns
IM45 TBF:SDA Bus Free Time 100 kHz mode 4.7 — µs Time the bus must be
free before a new
transmission can start
400 kHz mode 1.3 — µs
1 MHz mode(2)0.5 — µs
IM50 CBBus Capacitive Loading — 400 pF
IM51 TPGD Pulse Gobbler Delay 65 390 ns (Note 3)
Note 1: BRG is the value of the I2C Baud Rate Generator.
2: Maximum Pin Capacitance = 10 pF for all I2Cx pins (for 1 MHz mode only).
3: Typical value for this parameter is 130 ns.
4: These parameters are characterized but not tested in manufacturing.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 576 2017-2018 Microchip Technology Inc.
FIGURE 33-15: I2Cx BUS START/STOP BITS TIMING CHARACTERISTICS (SLAVE MODE)
FIGURE 33-16: I2Cx BUS DATA TIMING CHARACTERISTICS (SLAVE MODE)
SCLx
SDAx
Start
Condition
Stop
Condition
IS30
IS31 IS34
IS33
IS30
IS31 IS33
IS11
IS10
IS20
IS25
IS40 IS40 IS45
IS21
SCLx
SDAx
In
SDAx
Out
IS26
2017-2018 Microchip Technology Inc. DS70005349E-page 577
dsPIC33CK256MP508 FAMILY
TABLE 33-34: I2Cx BUS DATA TIMING REQUIREMENTS (SLAVE MODE)
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C T
A +85°C for Industrial
-40°C T
A +125°C for Extended
Param
No. Symbol Characteristic(3)Min. Max. Units Conditions
IS10 TLO:SCL Clock Low Time 100 kHz mode 4.7 — µs
400 kHz mode 1.3 — µs
1 MHz mode(1)0.5 — µs
IS11 THI:SCL Clock High Time 100 kHz mode 4.0 — µs Device must operate at a
minimum of 1.5 MHz
400 kHz mode 0.6 — µs Device must operate at a
minimum of 10 MHz
1 MHz mode(1)0.26 — µs
IS20 TF:SCL SDAx and SCLx
Fall Time
100 kHz mode — 300 ns CB is specified to be from
10 to 400 pF
400 kHz mode 20 x (VDD/5.5V) 300 ns
1 MHz mode(1)20 x (VDD/5.5V) 120 ns
IS21 TR:SCL SDAx and SCLx
Rise Time
100 kHz mode — 1000 ns CB is specified to be from
10 to 400 pF
400 kHz mode 20 + 0.1 CB300 ns
1 MHz mode(1)—120ns
IS25 TSU:DAT Data Input
Setup Time
100 kHz mode 250 — ns
400 kHz mode 100 — ns
1 MHz mode(1)50 — ns
IS26 THD:DAT Data Input
Hold Time
100 kHz mode 0 — µs
400 kHz mode 0 0.9 µs
1 MHz mode(1)00.3µs
IS30 TSU:STA Start Condition
Setup Time
100 kHz mode 4.7 — µs Only relevant for Repeated
Start condition
400 kHz mode 0.6 — µs
1 MHz mode(1)0.26 — µs
IS31 THD:STA Start Condition
Hold Time
100 kHz mode 4.0 — µs After this period, the first
clock pulse is generated
400 kHz mode 0.6 — µs
1 MHz mode(1)0.26 — µs
IS33 TSU:STO Stop Condition
Setup Time
100 kHz mode 4.0 — µs
400 kHz mode 0.6 — µs
1 MHz mode(1)0.26 — µs
IS34 THD:STO Stop Condition
Hold Time
100 kHz mode >0 — µs
400 kHz mode >0 — µs
1 MHz mode(1)>0 µs
IS40 TAA:SCL Output Valid from
Clock
100 kHz mode 0 3450 ns
400 kHz mode 0 900 ns
1 MHz mode(1)0450ns
IS45 TBF:SDA Bus Free Time 100 kHz mode 4.7 — µs Time the bus must be free
before a new transmission
can start
400 kHz mode 1.3 — µs
1 MHz mode(1)0.5 — µs
IS50 CBBus Capacitive Loading — 400 pF
IS51 TPGD Pulse Gobbler Delay 65 390 ns (Note 2)
Note 1: Maximum Pin Capacitance = 10 pF for all I2Cx pins (for 1 MHz mode only).
2: Typical value for this parameter is 130 ns.
3: These parameters are characterized but not tested in manufacturing.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 578 2017-2018 Microchip Technology Inc.
FIGURE 33-17: UARTx MODULE I/O TIMING CHARACTERISTICS
TABLE 33-35: UARTx MODULE I/O TIMING REQUIREMENTS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +125°C
Param
No. Symbol Characteristic(1)Min. Typ.(2)Max. Units Conditions
UA10 TUABAUD UARTx Baud Time 40 — — ns
UA11 FBAUD UARTx Baud Frequency — — 25 Mbps
UA20 T
CWF Start Bit Pulse Width to Trigger
UARTx Wake-up
50 — — ns
Note 1: These parameters are characterized but not tested in manufacturing.
2: Data in “Typ.” column is at 3.3V, +25°C unless otherwise stated. Parameters are for design guidance only
and are not tested.
UA20
UxRX MSb In LSb InBit 6-1
UA10
UXTX
2017-2018 Microchip Technology Inc. DS70005349E-page 579
dsPIC33CK256MP508 FAMILY
TABLE 33-36: ADC MODULE SPECIFICATIONS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)(4)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristics Min. Typical Max. Units Conditions
Analog Input
AD12 VINH-VINL Full-Scale Input Span AVSS —AVDD V
AD14 VIN Absolute Input Voltage AVSS – 0.3 — AVDD + 0.3 V
AD17 RIN Recommended
Impedance of Analog
Voltage Source
—100—For minimum sampling
time (Note 1)
AD66 VBG Internal Voltage
Reference Source
—1.2—V
ADC Accuracy
AD20c Nr Resolution 12 data bits bits
AD21c INL Integral Nonlinearity > -11.3 — < 11.3 LSb AVSS = 0V, AVDD = 3.3V
AD22c DNL Differential Nonlinearity > -1.5 — < 11.5 LSb AVSS = 0V, AVDD = 3.3V
AD23c GERR Gain Error > -12 — < 12 LSb AVSS = 0V, AVDD = 3.3V
AD24c EOFF Offset Error > -7.5 — < 7.5 LSb AVSS = 0V, AVDD = 3.3V
Dynamic Performance
AD31b SINAD Signal-to-Noise and
Distortion
56 — 70 dB (Notes 2, 3)
AD34b ENOB Effective Number of Bits 9.0 — 11.4 bits (Notes 2, 3)
AD50 TAD ADC Clock Period 14.3 — — ns
AD51 FTP Throughput Rate — — 3.5 Msps Dedicated Cores 0 and 1
— — 3.5 Msps Shared core
Note 1: These parameters are not characterized or tested in manufacturing.
2: These parameters are characterized but not tested in manufacturing.
3: Characterized with a 1 kHz sine wave.
4: The ADC module is functional at VBORMIN < VDD < VDDMIN, but with degraded performance. Unless
otherwise stated, module functionality is ensured, but not characterized.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 580 2017-2018 Microchip Technology Inc.
TABLE 33-37: HIGH-SPEED ANALOG COMPARATOR MODULE SPECIFICATIONS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)(2)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic Min. Typ. Max. Units Comments
CM09 FIN Input Frequency 400 500 550 MHz
CM10 VIOFF Input Offset Voltage -20 — +20 mV
CM11 VICM Input Common-Mode
Voltage Range(1)
AVSS —AVDD V
CM13 CMRR Common-Mode
Rejection Ratio(1)
65 — — dB
CM14 TRESP Large Signal Response — 15 — ns V+ input step of 100 mV while
V- input is held at AVDD/2
CM15 VHYST Input Hysteresis 15 — 45 mV Depends on HYSSEL<1:0>
Note 1: These parameters are for design guidance only and are not tested in manufacturing.
2: The comparator module is functional at VBORMIN < VDD < VDDMIN, but with degraded performance. Unless
otherwise stated, module functionality is tested, but not characterized.
2017-2018 Microchip Technology Inc. DS70005349E-page 581
dsPIC33CK256MP508 FAMILY
TABLE 33-38: DACx MODULE SPECIFICATIONS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic Min. Typ.(1)Max. Units Comments
DA02 CVRES Resolution 12 bits
DA03 INL Integral Nonlinearity Error -38 — 0 LSB
DA04 DNL Differential Nonlinearity Error -5 — 5 LSB
DA05 EOFF Offset Error -3.5 — 21.5 LSB Internal node at comparator
input
DA06 EG Gain Error 0 — 41 LSB Internal node at comparator
input
DA07 TSET Settling Time — 750 — ns Output within 1% of desired
output voltage with a
5%-95% or 95%-5% step
DA08 VOUT Voltage Output Range 0.165 — 3.135 V VDD = 3.3V
Note 1: Parameters are for design guidance only and are not tested in manufacturing.
TABLE 33-39: DACx OUTPUT (DACOUT1 PIN) SPECIFICATIONS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)(1,2)
Operating temperature -40°C TA +85°C for Industrial
-40°C TA +125°C for Extended
Param
No. Symbol Characteristic Min. Typ. Max. Units Comments
DA11 RLOAD Resistive Output Load
Impedance
10K — — Ohm
DA11a CLOAD Output Load Capacitance — — 30 pF Including output pin
capacitance
DA12 IOUT Output Current Drive Strength — 3 — mA Sink and source
Note 1: The DACx module is functional at VBORMIN < VDD < VDDMIN, but with degraded performance. Unless
otherwise stated, module functionality is tested, but not characterized.
2: Using other pin functions may degrade DAC performance.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 582 2017-2018 Microchip Technology Inc.
TABLE 33-40: CONSTANT-CURRENT SOURCE SPECIFICATIONS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)(1)
Operating temperature -40°C TA +85°C for Industrial
-40°C T
A +125°C for Extended
Param
No. Symbol Characteristic Min. Typ. Max. Units Conditions
CC02 IREG Current Regulation — ±3 — %
CC03 IOUT Current Output at Terminal — 10 — µA ISRCx pin
— 50 — µA IBIASx pin
Note 1: The constant-current source module is functional at VBORMIN < VDD < VDDMIN, but with degraded
performance. Unless otherwise stated, module functionality is tested, but not characterized.
TABLE 33-41: OPERATIONAL AMPLIFIER SPECIFICATIONS
Operating Conditions: 3.0V to 3.6V (unless otherwise stated)(1)
Operating temperature -40°C TA +85°C for Industrial
-40°C T
A +125°C for Extended
Param
No. Sym Characteristic Min Typ(1)Max Units Comments
OA01 GBWP Gain Bandwidth Product — 20 — MHz
OA02 SR Slew Rate — 40 — V/µs
OA03 VIOFF Input Offset Voltage -15 5 15 mV NCHDISx = 0
-20 — 20 mV NCHDISx = 1
OA04 VIBC Input Bias Current — — — nA (Note 2)
OA05 VICM Common-Mode Input Voltage
Range
AVSS —AVDD V NCHDISx = 0
AVSS — 2.8 V NCHDISx = 1
OA07 CMRR Common-Mode Rejection Ratio — 68 — dB
OA08 PSRR Power Supply Rejection Ratio — 74 — dB
OA09 VOR Output Voltage Range AVSS —AVDD mV 0.5V input overdrive,
no output loading
OA10 RLOAD Resistive Output Load Impedance 10K — — Ohm
OA11 CLOAD Output Load Capacitance — — 30 pF Including output pin
capacitance
OA12 IOUT Output Current Drive Strength — 3 — mA Sink and source
OA13 PMARGIN Phase Margin 44 — — degree Unity gain
OA14 GMARGIN Gain Margin 7 — — dB Unity gain
OA15 OLG Open-Loop Gain 68 75 — dB
OA16 RFB Feedback Resistance AVDD/
(Gain * 200 nA)
—15kOhm
Note 1: These parameters are for design guidance only and are not tested in manufacturing.
2: The op amps use CMOS input circuitry with negligible input bias current. The maximum “effective bias
current” is the I/O pin leakage specified by electrical Parameter DI50.
2017-2018 Microchip Technology Inc. DS70005349E-page 583
dsPIC33CK256MP508 FAMILY
34.0 PACKAGING INFORMATION
34.1 Package Marking Information
Legend: XX...X Customer-specific information
Y Year code (last digit of calendar year)
YY Year code (last 2 digits of calendar year)
WW Week code (week of January 1 is week ‘01’)
NNN Alphanumeric traceability code
Note: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for customer-specific information.
28-Lead UQFN (6x6 mm)
XXXXXXXX
XXXXXXXX
YYWWNNN
33CK64
MP202
1710017
Example
XXXXXXX
36-Lead UQFN (5x5 mm)
XXXXXXX
XXXXXXX
28-Lead SSOP (5.30 mm)
XXXXXXXXXXXX
XXXXXXXXXXXX
YYWWNNN
Example
dsPIC33CK
64MP202
1710017
YYWWNNN
dsPIC
Example
33CK64
MP203
1710017
48-Lead TQFP (7x7 mm) Example
CK256MP
5051710
017
dsPIC33CK256MP508 FAMILY
DS70005349E-page 584 2017-2018 Microchip Technology Inc.
34.1 Package Marking Information (Continued)
48-Lead UQFN (6x6 mm)
64-Lead TQFP (10x10x1 mm)
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
YYWWNNN
Example
dsPIC33CK
64MP206
1710017
80-Lead TQFP (12x12x1 mm)
XXXXXXXXXXXX
XXXXXXXXXXXX
XXXXXXXXXXXX
Example
dsPIC33CK
64MP208
1710017
XXXXXXXXXXX
64-Lead QFN (9x9x0.9 mm)
XXXXXXXXXXX
XXXXXXXXXXX
YYWWNNN
dsPIC33CK
Example
64MP206
1710017
Example
YYWWNNN
80-Lead TQFP (12x12x1 mm)
XXXXXXXXXXXX
XXXXXXXXXXXX
XXXXXXXXXXXX
YYWWNNN
PIC33CK
256MP505
1710017
2017-2018 Microchip Technology Inc. DS70005349E-page 585
dsPIC33CK256MP508 FAMILY
34.2 Package Details
0LFURFKLS7HFKQRORJ\'UDZLQJ&5HY&6KHHWRI
)RUWKHPRVWFXUUHQWSDFNDJHGUDZLQJVSOHDVHVHHWKH0LFURFKLS3DFNDJLQJ6SHFLILFDWLRQORFDWHGDW
KWWSZZZPLFURFKLSFRPSDFNDJLQJ
1RWH
/HDG3ODVWLF6KULQN6PDOO2XWOLQH66PP%RG\>6623@
%
$
'$780%
'$780$
1
7239,(:
6,'(9,(:
(
& $ %
&
6($7,1*
3/$1(
'
$
;E
(
H
$
$
$
&
;
$
9,(:$$
/
+
/
F
dsPIC33CK256MP508 FAMILY
DS70005349E-page 586 2017-2018 Microchip Technology Inc.
0LFURFKLS7HFKQRORJ\'UDZLQJ&5HY&6KHHWRI
/HDG3ODVWLF6KULQN6PDOO2XWOLQH66PP%RG\>6623@
)RUWKHPRVWFXUUHQWSDFNDJHGUDZLQJVSOHDVHVHHWKH0LFURFKLS3DFNDJLQJ6SHFLILFDWLRQORFDWHGDW
KWWSZZZPLFURFKLSFRPSDFNDJLQJ
1RWH
E
/HDG:LGWK
)RRW$QJOH
F
/HDG7KLFNQHVV
/)RRW/HQJWK
'2YHUDOO/HQJWK
(0ROGHG3DFNDJH:LGWK
(2YHUDOO:LGWK
$6WDQGRII
$0ROGHG3DFNDJH7KLFNQHVV
$2YHUDOO+HLJKW
%6&
H
3LWFK
11XPEHURI3LQV
0$;1200,1'LPHQVLRQ/LPLWV
0,//,0(7(568QLWV
3LQYLVXDOLQGH[IHDWXUHPD\YDU\EXWPXVWEHORFDWHGZLWKLQWKHKDWFKHGDUHD
'LPHQVLRQLQJDQGWROHUDQFLQJSHU$60(<0
%6&%DVLF'LPHQVLRQ7KHRUHWLFDOO\H[DFWYDOXHVKRZQZLWKRXWWROHUDQFHV
5()5HIHUHQFH'LPHQVLRQXVXDOO\ZLWKRXWWROHUDQFHIRULQIRUPDWLRQSXUSRVHVRQO\
'LPHQVLRQV'DQG(GRQRWLQFOXGHPROGIODVKRUSURWUXVLRQV0ROGIODVKRU
SURWUXVLRQVVKDOOQRWH[FHHGPPSHUVLGH
Notes:
)RRWSULQW / 5()
2017-2018 Microchip Technology Inc. DS70005349E-page 587
dsPIC33CK256MP508 FAMILY
5(&200(1'('/$1'3$77(51
0LFURFKLS7HFKQRORJ\'UDZLQJ&5HY%
/HDG3ODVWLF6KULQN6PDOO2XWOLQH66PP%RG\>6623@
6,/.6&5((1
&
(
;
<
*
%6&%DVLF'LPHQVLRQ7KHRUHWLFDOO\H[DFWYDOXHVKRZQZLWKRXWWROHUDQFHV
1RWHV
'LPHQVLRQLQJDQGWROHUDQFLQJSHU$60(<0
)RUEHVWVROGHULQJUHVXOWVWKHUPDOYLDVLIXVHGVKRXOGEHILOOHGRUWHQWHGWRDYRLGVROGHUORVVGXULQJ
UHIORZSURFHVV
)RUWKHPRVWFXUUHQWSDFNDJHGUDZLQJVSOHDVHVHHWKH0LFURFKLS3DFNDJLQJ6SHFLILFDWLRQORFDWHGDW
KWWSZZZPLFURFKLSFRPSDFNDJLQJ
1RWH
'LPHQVLRQ/LPLWV
8QLWV
&RQWDFW3LWFK
0,//,0(7(56
%6&
0,1
(
0$;
&RQWDFW3DG/HQJWK;
&RQWDFW3DG:LGWK;
<
;
120
&&RQWDFW3DG6SDFLQJ
&RQWDFW3DGWR&HQWHU3DG; *
dsPIC33CK256MP508 FAMILY
DS70005349E-page 588 2017-2018 Microchip Technology Inc.
B
A
0.10 C
0.10 C
0.10 C A B
0.05 C
(DATUM B)
(DATUM A)
C
SEATING
PLANE
NOTE 1
1
2
N
2X
TOP VIEW
SIDE VIEW
BOTTOM VIEW
NOTE 1
1
2
N
0.10 C A B
0.10 C A B
0.10 C
0.08 C
Microchip Technology Drawing C04-385 Rev C Sheet 1 of 2
2X
28X
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Note:
28-Lead Ultra Thin Plastic Quad Flat, No Lead Package (2N) - 6x6x0.55 mm Body [UQFN]
D
E
E2
D2
2X P
28X b
e
A
(A3)
A1
28X K
With 4.65x4.65 mm Exposed Pad and Corner Anchors
8X b1
L
8X b2
2017-2018 Microchip Technology Inc. DS70005349E-page 589
dsPIC33CK256MP508 FAMILY
Microchip Technology Drawing C04-385 Rev C Sheet 2 of 2
Number of Terminals
Overall Height
Terminal Width
Overall Width
Overall Length
Terminal Length
Exposed Pad Width
Exposed Pad Length
Terminal Thickness
Pitch
Standoff
Units
Dimension Limits
A1
A
b
D
E2
D2
A3
e
L
E
N
0.65 BSC
0.127 REF
4.55
4.55
0.30
0.25
0.45
0.00
0.30
6.00 BSC
0.40
4.65
4.65
0.50
0.02
6.00 BSC
MILLIMETERS
MIN NOM
28
4.75
4.75
0.50
0.35
0.55
0.05
MAX
K-0.20 -
REF: Reference Dimension, usually without tolerance, for information purposes only.
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
1.
2.
3.
Notes:
Pin 1 visual index feature may vary, but must be located within the hatched area.
Package is saw singulated
Dimensioning and tolerancing per ASME Y14.5M
Terminal-to-Exposed-Pad
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Note:
Exposed Pad Corner Chamfer P - 0.35 -
28-Lead Ultra Thin Plastic Quad Flat, No Lead Package (2N) - 6x6x0.55 mm Body [UQFN]
With 4.65x4.65 mm Exposed Pad and Corner Anchors
0.35 0.40 0.43Corner Anchor Pad b1
0.15 0.20 0.25
Corner Pad, Metal Free Zone b2
dsPIC33CK256MP508 FAMILY
DS70005349E-page 590 2017-2018 Microchip Technology Inc.
RECOMMENDED LAND PATTERN
Dimension Limits
Units
C2
Optional Center Pad Width
Contact Pad Spacing
Optional Center Pad Length
Contact Pitch
Y2
X2
4.75
4.75
MILLIMETERS
0.65 BSC
MIN
E
MAX
6.00
Contact Pad Length (X28)
Contact Pad Width (X28)
Y1
X1
0.80
0.35
Microchip Technology Drawing C04-2385B
NOM
SILK SCREEN
C1Contact Pad Spacing 6.00
Contact Pad to Pad (X28) G1 0.20
Thermal Via Diameter V
Thermal Via Pitch EV
0.33
1.20
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
Notes:
Dimensioning and tolerancing per ASME Y14.5M
For best soldering results, thermal vias, if used, should be filled or tented to avoid solder loss during
reflow process
1.
2.
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Note:
C2
C1
EV
EV
E
X2
Y1
G2
G1
ØV
Contact Pad to Center Pad (X28) G2 0.20
28-Lead Ultra Thin Plastic Quad Flat, No Lead Package (2N) - 6x6x0.55 mm Body [UQFN]
With 4.65x4.65 mm Exposed Pad and Corner Anchors
1
2
28
Y3
Corner Anchor Chamfer (X4)
Corner Anchor (X4)
X4
X3
0.35
1.00
Y4
X3
X4
Corner Anchor Chamfer (X4)
Corner Anchor (X4)
Y4
Y3
0.35
1.00
X1
Y2
2017-2018 Microchip Technology Inc. DS70005349E-page 591
dsPIC33CK256MP508 FAMILY
B
A
0.10 C
0.10 C
0..07 C A B
0.05 C
(DATUM B)
(DATUM A)
CSEATING
PLANE
NOTE 1
1
2
N
2X
TOP VIEW
SIDE VIEW
BOTTOM VIEW
NOTE 1
1
2
N
0.10 C A B
0.10 C A B
0.10 C
0.08 C
Microchip Technology Drawing C04-436A–M5 Sheet 1 of 2
D
E
A
16X b
e
2X
D2
E2
K
L
36X
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Note:
36-Lead Ultra Thin Plastic Quad Flat, No Lead Package (M5) - 5x5 mm Body [UQFN]
With Corner Anchors
SEE
DETAIL A
dsPIC33CK256MP508 FAMILY
DS70005349E-page 592 2017-2018 Microchip Technology Inc.
Microchip Technology Drawing C04-436A–M5 Sheet 2 of 2
Number of Terminals
Overall Height
Terminal Width
Overall Width
Terminal Length
Exposed Pad Width
Terminal Thickness
Pitch
Standoff
Units
Dimension Limits
A1
A
b
E2
A3
e
L
E
N
0.40 BSC
0.152 REF
3.60
0.30
0.15
0.50
0.00
0.20
0.40
3.70
0.55
0.02
5.00 BSC
MILLIMETERS
MIN NOM
36
3.80
0.50
0.25
0.60
0.05
MAX
K0.25 REF
REF: Reference Dimension, usually without tolerance, for information purposes only.
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
1.
2.
3.
Notes:
Pin 1 visual index feature may vary, but must be located within the hatched area.
Package is saw singulated
Dimensioning and tolerancing per ASME Y14.5M
Terminal-to-Exposed-Pad
36-Lead Ultra Thin Plastic Quad Flat, No Lead Package (M5) - 5x5 mm Body [UQFN]
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Note:
With Corner Anchors
Overall Length
Exposed Pad Length
D
D2 3.60
5.00 BSC
3.70 3.80
C
SEATING
PLANE
(A3)
A1
A
DETAIL A
2017-2018 Microchip Technology Inc. DS70005349E-page 593
dsPIC33CK256MP508 FAMILY
RECOMMENDED LAND PATTERN
Dimension Limits
Units
C2
Optional Center Pad Width
Contact Pad Spacing
Optional Center Pad Length
Contact Pitch
Y2
X2
3.80
3.80
MILLIMETERS
0.40 BSC
MIN
E
MAX
5.00
Contact Pad Length (X36)
Contact Pad Width (X36)
Y1
X1
0.80
0.20
Microchip Technology Drawing C04-2436A–M5
NOM
36-Lead Ultra Thin Plastic Quad Flat, No Lead Package (M5) - 5x5 mm Body [UQFN]
SILK SCREEN
1
2
36
C2
E
X1
Y1
G1
Y2
X2
C1Contact Pad Spacing 5.00
Contact Pad to Center Pad (X36) G1 0.20
Thermal Via Diameter V
Thermal Via Pitch EV
0.30
1.00
EV
EV
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
Notes:
Dimensioning and tolerancing per ASME Y14.5M
For best soldering results, thermal vias, if used, should be filled or tented to avoid solder loss during
reflow process
1.
2.
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Note:
With Corner Anchors
C1
Y3
X3
R1
Corner Pad Length (X36)
Corner Pad Width (X4)
Y3
X3
0.85
0.20
Corner Pad Radius R1 0.10
ØV
dsPIC33CK256MP508 FAMILY
DS70005349E-page 594 2017-2018 Microchip Technology Inc.
C
SEATING
PLANE
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Note:
Microchip Technology Drawing C04-300-PT Rev A Sheet 1 of 2
48-Lead Thin Quad Flatpack (PT) - 7x7x1.0 mm Body [TQFP]
TOP VIEW
EE1
D
0.20 HA-B D
4X
D1
2
12
A B
AA
D
D1
A1
A
H
0.10 C
0.08 C
SIDE VIEW
N
0.20 CA-B D
48X TIPS
E1
4
D1
4
A2
E1
2
e
48x b
0.08 CA-B D
NOTE 1
2017-2018 Microchip Technology Inc. DS70005349E-page 595
dsPIC33CK256MP508 FAMILY
Microchip Technology Drawing C04-300-PT Rev A Sheet 2 of 2
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Note:
48-Lead Thin Quad Flatpack (PT) - 7x7x1.0 mm Body [TQFP]
H
L
(L1)
T
c
D
E
SECTION A-A
2.
1.
4.
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
REF: Reference Dimension, usually without tolerance, for information purposes only.
3.
protrusions shall not exceed 0.25mm per side.
Mold Draft Angle Bottom
Molded Package Thickness
Dimension Limits
Mold Draft Angle Top
Notes:
Foot Length
Lead Width
Lead Thickness
Molded Package Length
Molded Package Width
Overall Length
Overall Width
Foot Angle
Footprint
Standoff
Overall Height
Lead Pitch
Number of Leads
12°
E11° 13°
0.750.600.45L
12°
0.22
7.00 BSC
7.00 BSC
9.00 BSC
9.00 BSC
3.5°
1.00 REF
c
D
b
D1
E1
0.09
0.17
11°
D
E
I
L1
0°
13°
0.27
0.16-
7°
1.00
0.50 BSC
48
NOM
MILLIMETERS
A1
A2
A
e
0.05
0.95
-
Units
N
MIN
1.05
0.15
1.20
-
-
MAX
Chamfers at corners are optional; size may vary.
Pin 1 visual index feature may vary, but must be located within the hatched area.
Dimensioning and tolerancing per ASME Y14.5M
Dimensions D1 and E1 do not include mold flash or protrusions. Mold flash or
5.
plastic body at datum plane H
Datums A-B and D to be determined at center line between leads where leads exit
dsPIC33CK256MP508 FAMILY
DS70005349E-page 596 2017-2018 Microchip Technology Inc.
RECOMMENDED LAND PATTERN
Dimension Limits
Units
C2Contact Pad Spacing
Contact Pitch
MILLIMETERS
0.50 BSC
MIN
E
MAX
8.40
Contact Pad Length (X48)
Contact Pad Width (X48)
Y1
X1
1.50
0.30
Microchip Technology Drawing C04-2300-PT Rev A
NOM
48-Lead Thin Quad Flatpack (PT) - 7x7x1.0 mm Body [TQFP]
C1
C2
E
X1
Y1
G
C1Contact Pad Spacing 8.40
Distance Between Pads G 0.20
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
Notes:
Dimensioning and tolerancing per ASME Y14.5M
For best soldering results, thermal vias, if used, should be filled or tented to avoid solder loss during
reflow process
1.
2.
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Note:
SILK SCREEN
12
48
2017-2018 Microchip Technology Inc. DS70005349E-page 597
dsPIC33CK256MP508 FAMILY
B
A
0.10 C
0.10 C
0.07 C A B
0.05 C
(DATUM B)
(DATUM A)
CSEATING
PLANE
NOTE 1
1
2
N
2X
TOP VIEW
SIDE VIEW
BOTTOM VIEW
NOTE 1
1
2
N
0.10 C A B
0.10 C A B
0.10 C
0.08 C
Microchip Technology Drawing C04-442A-M4 Sheet 1 of 2
2X
52X
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Note:
48-Lead Ultra Thin Plastic Quad Flat, No Lead Package (M4) - 6x6 mm Body [UQFN]
With Corner Anchors and 4.6x4.6 mm Exposed Pad
D
E
D2
8X (b1)
E2
(K)
e
2
e
48X b
L
8X (b2)
A
(A3)
A1
dsPIC33CK256MP508 FAMILY
DS70005349E-page 598 2017-2018 Microchip Technology Inc.
Microchip Technology Drawing C04-442A-M4 Sheet 2 of 2
REF: Reference Dimension, usually without tolerance, for information purposes only.
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
1.
2.
3.
Notes:
Pin 1 visual index feature may vary, but must be located within the hatched area.
Package is saw singulated
Dimensioning and tolerancing per ASME Y14.5M
48-Lead Ultra Thin Plastic Quad Flat, No Lead Package (M4) - 6x6 mm Body [UQFN]
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Note:
With Corner Anchors and 4.6x4.6 mm Exposed Pad
Number of Terminals
Overall Height
Terminal Width
Overall Width
Terminal Length
Exposed Pad Width
Terminal Thickness
Pitch
Standoff
Units
Dimension Limits
A1
A
b
E2
A3
e
L
E
N
0.40 BSC
0.15 REF
0.35
0.15
0.50
0.00
0.20
0.40
0.55
0.02
6.00 BSC
MILLIMETERS
MIN NOM
48
0.45
0.25
0.60
0.05
MAX
K 0.30 REFTerminal-to-Exposed-Pad
Overall Length
Exposed Pad Length
D
D2 4.50
6.00 BSC
4.60 4.70
Corner Anchor Pad b1 0.45 REF
Corner Anchor Pad, Metal-free Zone b2 0.23 REF
4.50 4.60 4.70
2017-2018 Microchip Technology Inc. DS70005349E-page 599
dsPIC33CK256MP508 FAMILY
RECOMMENDED LAND PATTERN
Dimension Limits
Units
C2
Center Pad Width
Contact Pad Spacing
Center Pad Length
Contact Pitch
Y2
X2
4.70
4.70
MILLIMETERS
0.40 BSC
MIN
E
MAX
6.00
Contact Pad Length (X48)
Contact Pad Width (X48)
Y1
X1
0.80
0.20
Microchip Technology Drawing C04-2442A-M4
NOM
48-Lead Ultra Thin Plastic Quad Flat, No Lead Package (M4) - 6x6 mm Body [UQFN]
1
2
48
C1Contact Pad Spacing 6.00
Contact Pad to Center Pad (X48) G1 0.25
Thermal Via Diameter V
Thermal Via Pitch EV
0.33
1.20
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
Notes:
Dimensioning and tolerancing per ASME Y14.5M
For best soldering results, thermal vias, if used, should be filled or tented to avoid solder loss during
reflow process
1.
2.
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Note:
With Corner Anchors and 4.6x4.6 mm Exposed Pad
Pad Corner Radius (X 20) R 0.10
C1
C2
EV
EV
X2
Y2
X3
Y3
Y1
E
X1
G2
G1
R
Contact Pad to Contact Pad G2 0.20
Corner Anchor Pad Length (X4)
Corner Anchor Pad Width (X4)
Y3
X3
0.90
0.90
ØV
SILK SCREEN
dsPIC33CK256MP508 FAMILY
DS70005349E-page 600 2017-2018 Microchip Technology Inc.
0.20 CA-B D
64 X b
0.08 CA-B D
C
SEATING
PLANE
4X N/4 TIPS
TOP VIEW
SIDE VIEW
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Note:
Microchip Technology Drawing C04-085C Sheet 1 of 2
64-Lead Plastic Thin Quad Flatpack (PT)-10x10x1 mm Body, 2.00 mm Footprint [TQFP]
D
EE1
D1
D
A B
0.20 HA-B D
4X
D1/2
e
A
0.08 C
A1
A2
SEE DETAIL 1
AA
E1/2
NOTE 1
NOTE 2
123
N
0.05
2017-2018 Microchip Technology Inc. DS70005349E-page 601
dsPIC33CK256MP508 FAMILY
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Note:
64-Lead Plastic Thin Quad Flatpack (PT)-10x10x1 mm Body, 2.00 mm Footprint [TQFP]
13°12°11°
E
Mold Draft Angle Bottom
13°12°11°
D
Mold Draft Angle Top
0.270.220.17
b
Lead Width
0.20-0.09
c
Lead Thickness
10.00 BSC
D1
Molded Package Length
10.00 BSCE1Molded Package Width
12.00 BSCDOverall Length
12.00 BSCEOverall Width
7°3.5°0°
I
Foot Angle
0.750.600.45LFoot Length
0.15-0.05A1Standoff
1.051.000.95A2Molded Package Thickness
1.20--AOverall Height
0.50 BSC
e
Lead Pitch
64NNumber of Leads
MAXNOMMINDimension Limits
MILLIMETERSUnits
Footprint L1 1.00 REF
2. Chamfers at corners are optional; size may vary.
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
4. Dimensioning and tolerancing per ASME Y14.5M
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
REF: Reference Dimension, usually without tolerance, for information purposes only.
3. Dimensions D1 and E1 do not include mold flash or protrusions. Mold flash or
protrusions shall not exceed 0.25mm per side.
Notes:
Microchip Technology Drawing C04-085C Sheet 2 of 2
L
(L1)
E
c
H
X
X=A—B OR D
e/2
DETAIL 1
SECTION A-A
T
dsPIC33CK256MP508 FAMILY
DS70005349E-page 602 2017-2018 Microchip Technology Inc.
RECOMMENDED LAND PATTERN
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Note:
Dimension Limits
Units
C1Contact Pad Spacing
Contact Pad Spacing
Contact Pitch
C2
MILLIMETERS
0.50 BSC
MIN
E
MAX
11.40
11.40
Contact Pad Length (X28)
Contact Pad Width (X28)
Y1
X1
1.50
0.30
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
Notes:
1. Dimensioning and tolerancing per ASME Y14.5M
Microchip Technology Drawing C04-2085B Sheet 1 of 1
GDistance Between Pads 0.20
NOM
64-Lead Plastic Thin Quad Flatpack (PT)-10x10x1 mm Body, 2.00 mm Footprint [TQFP]
C2
C1
E
G
Y1
X1
2017-2018 Microchip Technology Inc. DS70005349E-page 603
dsPIC33CK256MP508 FAMILY
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
dsPIC33CK256MP508 FAMILY
DS70005349E-page 604 2017-2018 Microchip Technology Inc.
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
2017-2018 Microchip Technology Inc. DS70005349E-page 605
dsPIC33CK256MP508 FAMILY
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Note:
dsPIC33CK256MP508 FAMILY
DS70005349E-page 606 2017-2018 Microchip Technology Inc.
/HDG3ODVWLF7KLQ4XDG)ODWSDFN37±[[PP%RG\PP>74)3@
1RWHV
3LQYLVXDOLQGH[IHDWXUHPD\YDU\EXWPXVWEHORFDWHGZLWKLQWKHKDWFKHGDUHD
&KDPIHUVDWFRUQHUVDUHRSWLRQDOVL]HPD\YDU\
'LPHQVLRQV'DQG(GRQRWLQFOXGHPROGIODVKRUSURWUXVLRQV0ROGIODVKRUSURWUXVLRQVVKDOOQRWH[FHHGPPSHUVLGH
'LPHQVLRQLQJDQGWROHUDQFLQJSHU$60(<0
%6& %DVLF'LPHQVLRQ7KHRUHWLFDOO\H[DFWYDOXHVKRZQZLWKRXWWROHUDQFHV
5() 5HIHUHQFH'LPHQVLRQXVXDOO\ZLWKRXWWROHUDQFHIRULQIRUPDWLRQSXUSRVHVRQO\
1RWH )RUWKHPRVWFXUUHQWSDFNDJHGUDZLQJVSOHDVHVHHWKH0LFURFKLS3DFNDJLQJ6SHFLILFDWLRQORFDWHGDW
KWWSZZZPLFURFKLSFRPSDFNDJLQJ
8QLWV 0,//,0(7(56
'LPHQVLRQ/LPLWV 0,1 120 0$;
1XPEHURI/HDGV 1
/HDG3LWFK H %6&
2YHUDOO+HLJKW $ ± ±
0ROGHG3DFNDJH7KLFNQHVV $
6WDQGRII $ ±
)RRW/HQJWK /
)RRWSULQW / 5()
)RRW$QJOH
2YHUDOO:LGWK ( %6&
2YHUDOO/HQJWK ' %6&
0ROGHG3DFNDJH:LGWK ( %6&
0ROGHG3DFNDJH/HQJWK ' %6&
/HDG7KLFNQHVV F ±
/HDG:LGWK E
0ROG'UDIW$QJOH7RS
0ROG'UDIW$QJOH%RWWRP
D
D1
E
E1
e
bN
NOTE 1 123 NOTE 2 A
A2
L1
A1
L
c
α
βφ
0LFURFKLS 7HFKQRORJ\ 'UDZLQJ &%
2017-2018 Microchip Technology Inc. DS70005349E-page 607
dsPIC33CK256MP508 FAMILY
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
dsPIC33CK256MP508 FAMILY
DS70005349E-page 608 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 609
dsPIC33CK256MP508 FAMILY
APPENDIX A: REVISION HISTORY
Revision A (December 2017)
This is the initial version of the document.
Revision B (May 2018)
This revision incorporates the following updates:
• Sections:
- Updated Section 4.2.7 “BIST at Start-up”,
Section 4.2.8 “BIST at Run Time”,
Section 15.0 “Quadrature Encoder
Interface (QEI)”, Section 30.2 “Device
Calibration and Identification”,
Section 30.10 “Code Protection and
CodeGuard™ Security” and Section 34.1
“Package Marking Information”.
- Added Section 5.3.2 “Error Correcting
Code (ECC)” and Section 5.5.4 “ECC
Control Registers”.
• Tables:
- Updated Ta b l e 4 - 3 , Ta bl e 4-9, Tab l e 7 -3,
Table 7-4, Table 7 - 5 , Tabl e 8 -7, Table 15-1,
Table 24-3, Tab le 3 0 - 3 , Table 33-1,
Table 33-3, Tab le 3 3 - 5 , Table 33-6 (was
Table 33-9), Tab l e 3 3- 7 (was Table 33-11),
Table 33-22, Table 33-37 and Table 33-40.
- Deleted Table 33-6, Table 33-7, Table 33-8
and Table 33-10.
- Added Table 33-10, Ta b le 33-11, Table 33-12
and Table 33-13.
•Figures:
- Updated Figure 3-1, Figure 4-1, Figure 4-12,
Figure 15-2, Figure 30-3 and Figure 30-4.
•Registers:
- Updated Register 4-1, Register 14-1,
Register 14-6, Register 14-7, Register 14-9,
Register 15-1, Register 15-2, Register 15-3,
Register 15-5, Register 15-6, Register 15-7,
Register 15-9, Register 15-11,
Register 15-17, Register 27-1, Register 27-2,
Register 30-5 and Register 30-7.
- Added Register 5-7, Register 5-8,
Register 5-9, Register 5-10, Register 5-11,
Register 5-12, Register 15-18 and
Register 15-19.
- Deleted Register 15-8, Register 15-12 and
Register 15-20.
•Examples:
- Updated Example 29-1.
- Added Example 29-2.
• Equations:
- Deleted Equation 4-1.
Revision C (July 2018)
This revision incorporates the following updates:
• Tables:
- Updated Table 1-1, Table 33-10, Table 33-20,
Table 33-21, Table 33-26 and Table 33-41.
•Registers:
- Updated Register 4-1, Register 10-1,
Register 12-12, Register 12-13,
Register 13-30, Register 14-6, Register 14-7,
Register 15-2, Register 16-4, Register 20-2,
Register 22-7, Register 28-5, Register 28-6,
Register 28-7, Register 28-8, Register 28-9,
Register 28-10 and Register 28-11.
• Figures:
- Updated Figure 13-1 and Figure 13-2.
Revision D (September 2018)
This revision incorporates the following updates:
• Sections:
- Updated Section 18.0 “Inter-Integrated
Circuit (I2C)”.
- Added Section 18.4 “SMBus Support”.
- Updated the packaging diagrams for the
28-Lead SSOP and 28-Lead UQFN in
Section 34.0 “Packaging Information”.
• Tables:
- Updated Table 33-5, Tab le 33-6 , Table 33-7,
Table 33-8, Table 33-13 and Table 33-23.
- Added Tab l e 18-3.
•Registers:
- Updated Register 12-9, Register 13-3,
Register 30-6 and Register 30-21.
• Figures:
- Updated Figure 9-4.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 610 2017-2018 Microchip Technology Inc.
Revision E (December 2018)
This revision incorporates the following updates:
• Sections:
- Updated the “Operating Conditions”,
“Safety Features” and “Pin Diagrams”
sections.
- Updated Section 5.0 “Flash Program
Memory”, Section 5.2 “RTSP Operation”,
Section 5.3.1 “Programming Algorithm for
Flash Program Memory”, Section 5.3.3
“ECC Fault Injection”, Section 8.5.5 “Input
Mapping”, Section 12.0 “High-Resolution
PWM with Fine Edge Placement”,
Section 23.1 “Control Registers” and the
“Product Identification System” section.
- Added Section 8.5.3 “Controlling
Configuration Changes”, Section 8.5.3.1
“Control Register Lock”, Section 8.5.4
“Considerations for Peripheral Pin
Selection”, Section 9.6 “OSCCON Unlock
Sequence”, Section 12.3 “Lock and Write
Restrictions”and Section 34.0
“High-Temperature Electrical
Characteristics”.
• Tables:
- Added Tab l e 7 -1 and Ta b l e 1 2 - 1 .
- Updated Ta b l e 7 - 2 , Table 26-1, Ta b l e 3 3 - 4 ,
Table 33-39 and Table 33-41.
•Registers:
- Added Register 3-3 and Register 5-6.
- Updated Register 5-5, Register 8-13,
Register 9-1, Register 9-4, Register 12-1,
Register 13-6, Register 16-1, Register 17-1
and Register 30-14.
•Figures:
- Updated Figure 17-1 and Figure 17-2.
•Examples:
- Added Example 5-1 and Example 8-1.
2017-2018 Microchip Technology Inc. DS70005349E-page 611
dsPIC33CK256MP508 FAMILY
INDEX
A
Absolute Maximum Ratings .............................................. 547
AC Characteristics ............................................................ 559
Load Conditions ........................................................ 559
Alternate Interrupt Vector Table........................................ 101
Analog-to-Digital Converter. See ADC.
Arithmetic Logic Unit (ALU)................................................. 39
Assembler
MPASM Assembler................................................... 544
MPLAB Assembler, Linker, Librarian........................ 544
Auto-Shutdown and Gating Sources................................. 441
B
Bit-Reversed Addressing .................................................... 74
Example ...................................................................... 75
Implementation ........................................................... 74
Sequence Table (16-Entry)......................................... 75
Block Diagrams
16-Bit Timer1 Module................................................ 429
ADC Module.............................................................. 296
ADC Shared Core ..................................................... 297
Addressing for Table Registers................................... 79
APLL and VCO Detail ............................................... 187
CALL Stack Frame...................................................... 70
CAN FD Module........................................................ 218
CLCx Input Source Selection.................................... 449
CLCx Logic Function Combinatorial Options ............ 448
CLCx Module ............................................................ 447
Conceptual SCCPx Modules .................................... 433
Constant-Current Source .......................................... 479
CPU Core.................................................................... 30
CRC Module ............................................................. 475
Data Access from Program Space
Address Generation ............................................ 76
Deadman Timer Module ........................................... 487
Dedicated ADC Core ................................................ 297
dsPIC33CK256MP508 Core Clock Sources............. 183
dsPIC33CK256MP508 Core
Oscillator Subsystem ........................................ 184
dsPIC33CK256MP508 Family .................................... 17
Functional Direct Memory Access (DMA) ................. 208
High-Speed Analog Comparator............................... 324
I2Cx Module.............................................................. 396
Interleaved PFC .......................................................... 26
Internal Regulator ..................................................... 526
Master Reset System.................................................. 95
MCLR Pin Connections............................................... 24
Multiplexing Remappable Outputs for RPn............... 136
Off-Line UPS............................................................... 28
Operational Amplifier ................................................ 483
Phase-Shifted Full-Bridge Converter .......................... 27
PLL and VCO............................................................ 185
PMP Pinout and Connections to
External Devices............................................... 405
Programmer’s Model................................................... 32
PSV Read Address Generation .................................. 67
PTG........................................................................... 460
PWM High-Level Module .......................................... 262
QEI Module ............................................................... 337
Recommended Minimum Connection......................... 24
Remappable Input for U1RX..................................... 131
Security Segments ................................................... 532
Security Segments (Dual Partition) .......................... 532
SENTx Module ......................................................... 420
Shared Port Structure............................................... 121
Simplified UARTx ..................................................... 356
SPIx Master, Frame Master Connection .................. 393
SPIx Master, Frame Slave Connection .................... 394
SPIx Master/Slave Connection
(Enhanced Buffer Modes)................................. 393
SPIx Master/Slave Connection (Standard Mode)..... 392
SPIx Module (Enhanced Mode)................................ 380
SPIx Module (Standard Mode) ................................. 379
SPIx Slave, Frame Master Connection .................... 394
SPIx Slave, Frame Slave Connection ...................... 394
Suggested Oscillator Circuit Placement ..................... 25
Timer Clock Generator ............................................. 434
Watchdog Timer (WDT)............................................ 528
Brown-out Reset (BOR)............................................ 507, 527
Built-In Self-Test (BIST)...................................................... 50
At Run Time................................................................ 50
At Start-up .................................................................. 50
Flowchart .................................................................... 50
Built-In Self-Test. See BIST.
C
C Compilers
MPLAB XC ............................................................... 544
CAN FD Module
Control Registers...................................................... 219
Features ................................................................... 217
Message Reception.................................................. 217
Capture/Compare/PWM/Timer
Auto-Shutdown and Gating Sources ........................ 441
Auxiliary Output ........................................................ 436
Control Registers...................................................... 437
General Purpose Timer ............................................ 434
Input Capture Mode.................................................. 435
Output Compare Mode ............................................. 435
Synchronization Sources.......................................... 440
Time Base Generator ............................................... 434
Capture/Compare/PWM/Timer (SCCP/MCCP) ................ 433
CLC
Control Registers...................................................... 450
Code Examples
Configuring UART1 Input and Output Functions ...... 131
Flash Write/Read........................................................ 81
PWRSAV Instruction Syntax in Assembly................... 495
PWRSAV Instruction Syntax in C Language............... 495
Using Auxiliary PLL with Internal FRC Oscillator...... 188
Using PLL (50 MIPS) with POSC ............................. 191
Using Primary PLL with 8 MHz Internal FRC ........... 186
Code Protection ........................................................ 507, 531
CodeGuard Security ................................................. 507, 531
Comparator/DAC
Control Registers...................................................... 325
Features Overview ................................................... 325
Configurable Logic Cell (CLC).......................................... 447
Configurable Logic Cell. See CLC.
Configuration Bits ............................................................. 507
Bit Values for Clock Selection .................................. 192
Controller Area Network. See CAN.
dsPIC33CK256MP508 FAMILY
DS70005349E-page 612 2017-2018 Microchip Technology Inc.
CPU..................................................................................... 29
Addressing Modes ...................................................... 29
Control Registers ........................................................ 34
Data Space Addressing ..............................................29
Instruction Set ............................................................. 29
Registers..................................................................... 29
Resources................................................................... 33
CRC
Control Registers ......................................................476
Current Bias Generator
Control Registers ......................................................480
Current Bias Generator (CBG).......................................... 479
Current Bias Generator. See CBG.
Customer Change Notification Service ............................. 619
Customer Notification Service........................................... 619
Customer Support ............................................................. 619
Cyclic Redundancy Check. See CRC.
D
Data Address Space ........................................................... 45
Memory Map for dsPIC33CK128MPX0X Devices ...... 48
Memory Map for dsPIC33CK256MP508 Devices ....... 47
Memory Map for dsPIC33CK64MPX0X and
dsPIC33CK32MPX0X Devices ........................... 49
Near Data Space ........................................................ 46
Organization, Alignment.............................................. 45
SFR Space.................................................................. 46
Width........................................................................... 45
Data Space
Extended X ................................................................. 70
Paged Data Memory Space (figure) ........................... 68
Paged Memory Scheme ............................................. 67
DC Characteristics
Operating MIPS vs. Voltage...................................... 548
Deadman Timer (DMT) ..................................................... 487
Control Registers ......................................................488
Deadman Timer. See DMT.
Demo/Development Boards, Evaluation and
Starter Kits ................................................................ 546
Development Support ....................................................... 543
Device Calibration ............................................................. 524
and Identification....................................................... 524
Device Overview .................................................................17
Device Programmer
MPLAB PM3 ............................................................. 545
Direct Memory Access Controller. See DMA.
DMA
Channel Trigger Sources .......................................... 215
Control Registers ......................................................211
Peripheral Module Disable (PMD) ............................ 211
Summary of Operations ............................................ 209
Types of Data Transfers ........................................... 210
Typical Setup ............................................................ 211
Doze Mode........................................................................ 497
DSP Engine......................................................................... 39
Dual Watchdog Timer (Dual WDT) ................................... 528
E
ECC
Control Registers ........................................................ 92
Electrical Characteristics...................................................547
AC ............................................................................. 559
ADC Delta Current ....................................................554
ADC Specifications ................................................... 579
APLL Delta Current...................................................554
APLL Timing Specifications ...................................... 561
Comparator + DAC Delta Current............................. 555
Constant-Current Source Specifications................... 582
DACx Output (DACOUT1 Pin) Specifications........... 581
DACx Specifications ................................................. 581
Doze Current (IDOZE)................................................ 552
External Clock Requirements ................................... 560
High-Speed Analog Comparator Specifications ....... 580
High-Speed PWMx Timing Requirements ................ 565
I/O Pin Input Injection Current Specifications ........... 557
I/O Pin Input Specifications....................................... 556
I/O Pin Output Specifications.................................... 557
I/O Timing Requirements.......................................... 563
I2Cx Bus Data Timing Requirements
(Master Mode) .................................................. 575
I2Cx Bus Data Timing Requirements
(Slave Mode) .................................................... 577
Idle Current (IIDLE) .................................................... 551
Internal FRC Accuracy.............................................. 562
Internal LPRC Accuracy ........................................... 562
Op Amp Delta Current .............................................. 555
Operating Current (IDD) ............................................ 550
Operating Voltage Specifications.............................. 549
Operational Amplifier Specifications......................... 582
PLL Timing Specifications ........................................ 561
Power-Down Current (IPD)........................................ 552
Program Memory...................................................... 558
PWM Delta Current................................................... 553
Reset, WDT, OST, PWRT Timing Requirements ..... 564
SPIx Master Mode (Full-Duplex, CKE = 0,
CKP = x, SMP = 1) Timing Requirements ........ 569
SPIx Master Mode (Full-Duplex, CKE = 1,
CKP = x, SMP = 1) Timing Requirements ........ 568
SPIx Master Mode (Half-Duplex, Transmit Only)
Timing Requirements ....................................... 567
SPIx Maximum Data/Clock Rate Summary .............. 566
SPIx Slave Mode (Full-Duplex, CKE = 0,
CKP = x, SMP = 0) Timing Requirements ........ 571
SPIx Slave Mode (Full-Duplex, CKE = 1,
CKP = x, SMP = 0) Timing Requirements ........ 573
UARTx I/O Timing Requirements ............................. 578
Watchdog Timer Delta Current (IWDT).................... 553
Equations
AFPLLO Calculation ................................................... 188
AFVCO Calculation .................................................... 188
FPLLO Calculation ..................................................... 186
Frame Time Calculations.......................................... 421
FVCO Calculation ...................................................... 186
I2C Baud Rate Reload Calculation ........................... 397
Relationship Between Device and
SPIx Clock Speed............................................. 394
SYNCMINx and SYNCMAXx Calculations ............... 422
Tick Period Calculation............................................. 421
Errata .................................................................................. 15
Error Correcting Code (ECC).............................................. 82
Fault Injection ............................................................. 82
F
Flash Program Memory
and Table Instructions ................................................ 79
Control Registers ........................................................ 86
Dual Partition Flash Configuration.............................. 84
Operations .................................................................. 81
RTSP Operation ......................................................... 80
Flexible Configuration ....................................................... 507
2017-2018 Microchip Technology Inc. DS70005349E-page 613
dsPIC33CK256MP508 FAMILY
G
Getting Started Guidelines.................................................. 23
Connection Requirements .......................................... 23
Decoupling Capacitors................................................ 23
External Oscillator Pins............................................... 25
ICSP Pins.................................................................... 25
Master Clear (MCLR) Pin............................................ 24
Oscillator Value Conditions on Start-up ...................... 26
Targeted Applications ................................................. 26
Unused I/Os ................................................................ 26
H
High-Resolution PWM (HSPWM) with
Fine Edge Placement................................................ 261
High-Speed Analog Comparator with
Slope Compensation DAC ........................................ 323
High-Speed, 12-Bit Analog-to-Digital
Converter (ADC) ....................................................... 295
Control Registers ...................................................... 298
Features Overview.................................................... 295
Resources................................................................. 297
HSPWM
Architecture............................................................... 262
Control Registers ...................................................... 263
Lock and Write Restrictions ...................................... 262
PWM Output Availability (table) ................................ 261
I
I/O Ports
Configuring Analog/Digital Port Pins......................... 122
Control Registers ...................................................... 122
Helpful Tips ............................................................... 141
Parallel I/O (PIO)....................................................... 119
Resources................................................................. 142
Write/Read Timing .................................................... 122
I2C
Clock Rates............................................................... 397
Communicating as Master in Single
Master Environment.......................................... 395
Control Registers ...................................................... 399
Reserved Addresses................................................. 398
Setting Baud Rate as Bus Master............................. 397
Slave Address Masking ............................................ 397
SMBus Support......................................................... 398
ICSP Write Inhibit................................................................ 83
Activation .................................................................... 83
In-Circuit Debugger........................................................... 531
MPLAB ICD 3............................................................ 545
PICkit 3 Programmer ................................................ 545
In-Circuit Emulation........................................................... 507
In-Circuit Serial Programming (ICSP) ....................... 507, 531
Input Change Notification (ICN) ........................................ 129
Instruction Addressing Modes............................................. 71
File Register Instructions ............................................ 71
Fundamental Modes Supported.................................. 71
MAC Instructions .......................................................... 72
MCU Instructions ........................................................ 71
Move and Accumulator Instructions............................ 72
Other Instructions........................................................ 72
Instruction Set Summary................................................... 533
Overview ................................................................... 536
Symbols Used in Opcode Descriptions..................... 534
Instruction-Based Power-Saving Modes........................... 495
Idle............................................................................ 496
Sleep ........................................................................ 496
Inter-Integrated Circuit. See I2C.
Internet Address ............................................................... 619
Interrupt Controller
Alternate Interrupt Vector Table (AIVT) ...................... 99
Control and Status Registers.................................... 110
INTCON1.......................................................... 110
INTCON2.......................................................... 110
INTCON3.......................................................... 110
INTCON4.......................................................... 110
INTTREG.......................................................... 110
Interrupt Vector Details ............................................. 103
Interrupt Vector Table (IVT)........................................ 99
Reset Sequence ......................................................... 99
Resources ................................................................ 110
Trap Vector Details ................................................... 102
Interrupt Vector Table ....................................................... 100
Interrupts Coincident with Power Save Instructions ......... 496
J
JTAG Boundary Scan Interface ........................................ 507
JTAG Interface ................................................................. 531
L
Low-Power Sleep Modes (table)....................................... 496
M
Memory Organization ......................................................... 41
Resources .................................................................. 52
Microchip Internet Website ............................................... 619
Modulo Addressing ............................................................. 73
Applicability................................................................. 74
Operation Example..................................................... 73
Start and End Address ............................................... 73
W Address Register Selection .................................... 73
MPLAB REAL ICE In-Circuit Emulator System ................ 545
MPLAB X Integrated Development
Environment Software .............................................. 543
MPLINK Object Linker/MPLIB Object Librarian ................ 544
O
Operational Amplifier ........................................................ 483
Control Registers...................................................... 484
Oscillator
Configuration ............................................................ 192
Control Registers...................................................... 193
CPU Clocking ........................................................... 189
Internal Fast RC (FRC)............................................. 190
Low-Power RC (LPRC) ............................................ 190
OSCCON Unlock Sequence..................................... 192
Primary (POSC)........................................................ 190
Oscillator with High-Frequency PLL ................................. 183
P
Packaging......................................................................... 583
Details....................................................................... 585
Marking..................................................................... 583
Parallel Master Port (PMP)............................................... 405
Peripheral Module Disable (PMD) .................................... 497
dsPIC33CK256MP508 FAMILY
DS70005349E-page 614 2017-2018 Microchip Technology Inc.
Peripheral Pin Select (PPS) .............................................. 129
Available Peripherals ................................................ 129
Available Pins ........................................................... 129
Control Registers ......................................................146
Controlling Configuration Changes ........................... 130
Input Mapping ........................................................... 130
Output Mapping ........................................................ 136
Output Selection for Remappable Pins..................... 139
Remappable Output Pin Registers ........................... 137
Remappable Pin Inputs............................................. 132
Selectable Input Sources .......................................... 134
Peripheral Trigger Generator (PTG) ................................. 459
Peripheral Trigger Generator. See PTG.
Pin and ANSELx Availability ............................................. 120
Pinout I/O Descriptions (table) ............................................ 18
PMP
Control Registers ......................................................406
Power-Saving Features..................................................... 495
Clock Frequency and Switching................................ 495
Resources................................................................. 497
Program Address Space
Memory Map for dsPIC33CK128MP50X/20X
Devices ............................................................... 42
Memory Map for dsPIC33CK256MP50X/20X
Devices ............................................................... 42
Memory Map for dsPIC33CK32MP50X/20X
Devices ............................................................... 43
Memory Map for dsPIC33CK64MP50X/20X
Devices ............................................................... 43
Memory Map for dsPIC33CKXXXMP50X/20X
Devices ............................................................... 41
Program Memory
Address Space............................................................ 41
Construction........................................................ 76
Data Access from Program Memory Using
Table Instructions .......................................77
Table Read High Instructions (TBLRDH) ............. 77
Table Read Low Instructions (TBLRDL) .............. 77
Interfacing with Data Memory Spaces ........................ 76
Organization................................................................ 44
Reset Vector ............................................................... 44
Programmer’s Model........................................................... 31
Register Descriptions..................................................31
PTG
Command Options .................................................... 471
Control Registers ......................................................461
Features .................................................................... 459
Input Descriptions ..................................................... 473
Output Descriptions ..................................................473
Step Command Format/Description.......................... 470
Q
QEI
Control and Status Registers .................................... 338
Truth Table................................................................ 336
Quadrature Encoder Interface (QEI) ................................. 335
Quadrature Encoder Interface. See QEI.
R
Referenced Sources ...........................................................16
Register Maps
Configuration............................................................. 509
Interrupt Enable ........................................................ 107
Interrupt Flag............................................................. 107
Interrupt Priority ........................................................108
PMD .......................................................................... 505
PORTA ..................................................................... 143
PORTB ..................................................................... 143
PORTC ..................................................................... 144
PORTD ..................................................................... 144
PORTE ..................................................................... 145
PPS Input Control ..................................................... 181
PPS Output Control .................................................. 182
Registers
ACLKCON1 (Auxiliary Clock Control)....................... 200
ADCMPxCON (ADC Digital
Comparator x Control) ...................................... 319
ADCMPxENH (ADC Digital Comparator x
Channel Enable High) ...................................... 320
ADCMPxENL (ADC Digital Comparator x
Channel Enable Low) ....................................... 320
ADCON1H (ADC Control 1 High) ............................. 299
ADCON1L (ADC Control 1 Low)............................... 298
ADCON2H (ADC Control 2 High) ............................. 301
ADCON2L (ADC Control 2 Low)............................... 300
ADCON3H (ADC Control 3 High) ............................. 303
ADCON3L (ADC Control 3 Low)............................... 302
ADCON4H (ADC Control 4 High) ............................. 305
ADCON4L (ADC Control 4 Low)............................... 304
ADCON5H (ADC Control 5 High) ............................. 307
ADCON5L (ADC Control 5 Low)............................... 306
ADCORExH (Dedicated ADC Core x
Control High) .................................................... 309
ADCORExL (Dedicated ADC Core x
Control Low) ..................................................... 308
ADEIEH (ADC Early Interrupt Enable High) ............. 311
ADEIEL (ADC Early Interrupt Enable Low)............... 311
ADEISTATH (ADC Early Interrupt Status High) ....... 312
ADEISTATL (ADC Early Interrupt Status Low)......... 312
ADFLxCON (ADC Digital Filter x Control) ................ 321
ADIEH (ADC Interrupt Enable High)......................... 315
ADIEL (ADC Interrupt Enable Low) .......................... 315
ADLVLTRGH (ADC Level-Sensitive Trigger
Control High) .................................................... 310
ADLVLTRGL (ADC Level-Sensitive Trigger
Control Low) ..................................................... 310
ADMOD0H (ADC Input Mode Control 0 High).......... 313
ADMOD0L (ADC Input Mode Control 0 Low) ........... 313
ADMOD1H (ADC Input Mode Control 1 High).......... 314
ADMOD1L (ADC Input Mode Control 1 Low) ........... 314
ADSTATH (ADC Data Ready Status High) .............. 316
ADSTATL (ADC Data Ready Status Low)................ 316
ADTRIGnL/ADTRIGnH (ADC Channel Trigger n(x)
Selection Low/High).......................................... 317
AMPCON1H (Op Amp Control High)........................ 485
AMPCON1L (Op Amp Control Low) ......................... 484
ANSELx (Analog Select for PORTx)......................... 122
APLLDIV1 (APLL Output Divider)............................. 202
APLLFBD1 (APLL Feedback Divider)....................... 201
BIASCON (Current Bias Generator Control) ............ 480
C1BDIAG0H (CAN Bus Diagnostics 0 High) ............ 253
C1BDIAG0L (CAN Bus Diagnostics 0 Low).............. 253
C1BDIAG1H (CAN Bus Diagnostics 1 High) ............ 254
C1BDIAG1L (CAN Bus Diagnostics 1 Low).............. 255
C1CONH (CAN Control High)................................... 219
C1CONL (CAN Control Low).................................... 221
C1DBTCFGH (CAN Data Bit Time
Configuration High)........................................... 223
C1DBTCFGL (CAN Data Bit Time
Configuration Low) ........................................... 223
2017-2018 Microchip Technology Inc. DS70005349E-page 615
dsPIC33CK256MP508 FAMILY
C1FIFOBAH (CAN Message Memory Base
Address High) ................................................... 237
C1FIFOBAL (CAN Message Memory Base
Address Low).................................................... 237
C1FIFOCONHx (CAN FIFO Control x High)............. 241
C1FIFOCONLx (CAN FIFO Control x Low) .............. 242
C1FIFOSTAx (CAN FIFO Status x) .......................... 244
C1FIFOUAHx (CAN FIFO User Address x High)...... 249
C1FIFOUALx (CAN FIFO User Address x Low) ....... 249
C1FLTCONxH (CAN Filter Control x High)............... 256
C1FLTCONxL (CAN Filter Control x Low) ................ 257
C1FLTOBJxH (CAN Filter Object x High) ................. 258
C1FLTOBJxL (CAN Filter Object x Low) .................. 258
C1INTH (CAN Interrupt High) ................................... 230
C1INTL (CAN Interrupt Low)..................................... 231
C1MASKxH (CAN Mask x High)............................... 259
C1MASKxL (CAN Mask x Low) ................................ 259
C1NBTCFGH (CAN Nominal Bit Time
Configuration High)........................................... 222
C1NBTCFGL (CAN Nominal Bit Time
Configuration Low)............................................ 222
C1RXIFH (CAN Receive Interrupt Status High)........ 232
C1RXIFL (CAN Receive Interrupt Status Low) ......... 232
C1RXOVIFH (CAN Receive Overflow Interrupt
Status High) ...................................................... 233
C1RXOVIFL (CAN Receive Overflow Interrupt
Status Low)....................................................... 233
C1TBCH (CAN Time Base Counter High) ................ 226
C1TBCL (CAN Time Base Counter Low).................. 226
C1TDCH (CAN Transmitter Delay
Compensation High) ......................................... 224
C1TDCL (CAN Transmitter Delay
Compensation Low).......................................... 225
C1TEFCONH (CAN Transmit Event
FIFO Control High) ........................................... 246
C1TEFCONL (CAN Transmit Event
FIFO Control Low) ............................................ 247
C1TEFSTA (CAN Transmit Event FIFO Status) ....... 248
C1TEFUAH (CAN Transmit Event
FIFO User Address High) ................................. 250
C1TEFUAL (CAN Transmit Event
FIFO User Address Low) .................................. 250
C1TRECH (CAN Transmit/Receive
Error Count High).............................................. 252
C1TRECL (CAN Transmit/Receive
Error Count Low) .............................................. 252
C1TSCONH (CAN Timestamp Control High) ........... 227
C1TSCONL (CAN Timestamp Control Low)............. 227
C1TXATIFH (CAN Transmit Attempt Interrupt
Status High) ...................................................... 235
C1TXATIFL (CAN Transmit Attempt Interrupt
Status Low)....................................................... 235
C1TXIFH (CAN Transmit Interrupt Status High) ....... 234
C1TXIFL (CAN Transmit Interrupt Status Low) ........ 234
C1TXQCONH (CAN Transmit Queue
Control High)..................................................... 238
C1TXQCONL (CAN Transmit Queue
Control Low) ..................................................... 239
C1TXQSTA (CAN Transmit Queue Status) .............. 240
C1TXQUAH (CAN Transmit Queue User
Address High) ................................................... 251
C1TXQUAL (CAN Transmit Queue User
Address Low).................................................... 251
C1TXREQH (CAN Transmit Request High).............. 236
C1TXREQL (CAN Transmit Request Low) ............... 236
C1VECH (CAN Interrupt Code High)........................ 228
C1VECL (CAN Interrupt Code Low) ......................... 229
CANCLKCON (CAN Clock Control) ......................... 203
CCPxCON1H (CCPx Control 1 High)....................... 439
CCPxCON1L (CCPx Control 1 Low) ........................ 437
CCPxCON2H (CCPx Control 2 High)....................... 442
CCPxCON2L (CCPx Control 2 Low) ........................ 441
CCPxCON3H (CCPx Control 3 High)....................... 444
CCPxCON3L (CCPx Control 3 Low) ........................ 443
CCPxSTATL (CCPx Status) ..................................... 445
CLCxCONH (CLCx Control High)............................. 451
CLCxCONL (CLCx Control Low) .............................. 450
CLCxGLSH (CLCx Gate Logic Input Select High).... 456
CLCxGLSL (CLCx Gate Logic Input Select Low) ..... 454
CLCxSEL (CLCx Input MUX Select) ........................ 452
CLKDIV (Clock Divider) ............................................ 195
CMBTRIGH (Combinational Trigger High) ............... 268
CMBTRIGL (Combinational Trigger Low)................. 267
CNCONx (Change Notification Control
for PORTx) ....................................................... 126
CNEN0x (Interrupt Change Notification Enable
for PORTx) ....................................................... 126
CNEN1x (Interrupt Change Notification Edge Select
for PORTx) ....................................................... 127
CNFx (Interrupt Change Notification Flag
for PORTx) ....................................................... 128
CNPDx (Change Notification Pull-Down Enable
for PORTx) ....................................................... 125
CNPUx (Change Notification Pull-up Enable
for PORTx) ....................................................... 125
CNSTATx (Interrupt Change Notification Status
for PORTx) ....................................................... 127
CORCON (Core Control).................................... 36, 112
CRCCONH (CRC Control High) ............................... 477
CRCCONL (CRC Control Low) ................................ 476
CRCXORH (CRC XOR Polynomial, High Byte) ....... 478
CRCXORL (CRC XOR Polynomial, Low Byte)......... 478
CTXTSTAT (CPU W Register Context Status)........... 38
DACCTRL1L (DAC Control 1 Low) .......................... 326
DACCTRL2H (DAC Control 2 High) ......................... 327
DACCTRL2L (DAC Control 2 Low) .......................... 327
DACxCONH (DACx Control High)............................ 328
DACxCONL (DACx Control Low) ............................. 328
DACxDATH (DACx Data High)................................. 330
DACxDATL (DACx Data Low) .................................. 330
DEVID (Device ID).................................................... 524
DEVREV (Device Revision)...................................... 524
DMACHn (DMA Channel n Control) ......................... 213
DMACON (DMA Engine Control) ............................. 212
DMAINTn (DMA Channel n Interrupt)....................... 214
DMTCLR (Deadman Timer Clear)............................ 489
DMTCNTH (Deadman Timer Count High)................ 491
DMTCNTL (Deadman Timer Count Low) ................. 491
DMTCON (Deadman Timer Control) ........................ 488
DMTHOLDREG (DMT Hold) .................................... 494
DMTPRECLR (Deadman Timer Preclear)................ 488
DMTPSCNTH (DMT Post-Configure Count
Status High)...................................................... 492
DMTPSCNTL (DMT Post-Configure Count
Status Low) ...................................................... 492
DMTPSINTVH (DMT Post-Configure Interval
Status High)...................................................... 493
DMTPSINTVL (DMT Post-Configure Interval
Status Low) ...................................................... 493
DMTSTAT (Deadman Timer Status) ........................ 490
dsPIC33CK256MP508 FAMILY
DS70005349E-page 616 2017-2018 Microchip Technology Inc.
ECCADDRH (ECC Fault Inject Address
Compare High).................................................... 93
ECCADDRL (ECC Fault Inject Address
Compare Low) ....................................................93
ECCCONH (ECC Fault Injection
Configuration High) ............................................. 92
ECCCONL (ECC Fault Injection
Configuration Low).............................................. 92
ECCSTATH (ECC System Status Display High) ........ 94
ECCSTATL (ECC System Status Display Low).......... 94
FALTREG Configuration ........................................... 521
FBOOT Configuration ............................................... 523
FBSLIM Configuration...............................................511
FBTSEQ Configuration ............................................. 522
FDEVOPT Configuration........................................... 520
FDMT Configuration.................................................. 519
FDMTCNTH Configuration........................................518
FDMTCNTL Configuration ........................................ 518
FDMTIVTH Configuration ......................................... 517
FDMTIVTL Configuration ..........................................517
FICD Configuration ................................................... 516
FOSC Configuration.................................................. 513
FOSCSEL Configuration........................................... 512
FPOR Configuration..................................................515
FSCL (Frequency Scale) .......................................... 264
FSEC Configuration .................................................. 510
FSIGN Configuration................................................. 511
FSMINPER (Frequency Scaling
Minimum Period)...............................................264
FWDT Configuration ................................................. 514
I2CxCONH (I2Cx Control High) ................................ 401
I2CxCONL (I2Cx Control Low).................................. 399
I2CxMSK (I2Cx Slave Mode Address Mask) ............ 403
I2CxSTAT (I2Cx Status) ........................................... 402
IBIASCONH (Current Bias Generator Current
Source Control High) ........................................ 481
IBIASCONL (Current Bias Generator Current
Source Control Low) ......................................... 482
INDXxCNTH (Index x Counter High) ........................ 350
INDXxCNTL (Index x Counter Low)..........................350
INDXxHLD (Index x Counter Hold) ........................... 351
INTCON1 (Interrupt Control 1).................................. 113
INTCON2 (Interrupt Control 2).................................. 115
INTCON3 (Interrupt Control 3).................................. 116
INTCON4 (Interrupt Control 4).................................. 117
INTTREG (Interrupt Control and Status)................... 118
INTxTMRH (Interval x Timer High)............................ 348
INTxTMRL (Interval x Timer Low)............................. 348
INTXxHLDH (Interval x Timer Hold High) .................349
INTXxHLDL (Interval x Timer Hold Low)................... 349
LATx (Output Data for PORTx)................................. 124
LFSR (Linear Feedback Shift) .................................. 273
LOGCONy (Combinatorial PWM Logic
Control y) ..........................................................269
MBISTCON (MBIST Control) ...................................... 51
MDC (Master Duty Cycle) .........................................265
MPER (Master Period).............................................. 266
MPHASE (Master Phase) ......................................... 265
MSTRPR (EDS Bus Master Priority Control) ..............37
NVMADR (Nonvolatile Memory Lower Address) ........ 89
NVMADRU (Nonvolatile Memory Upper Address)...... 89
NVMCON (Nonvolatile Memory (NVM) Control) ......... 87
NVMKEY (Nonvolatile Memory Key) .......................... 90
NVMSRCADRH (NVM Source Data
Address High) .....................................................91
NVMSRCADRL (NVM Source Data
Address Low)...................................................... 91
ODCx (Open-Drain Enable for PORTx).................... 124
OSCCON (Oscillator Control)................................... 193
OSCTUN (FRC Oscillator Tuning)............................ 198
PCLKCON (PWM Clock Control).............................. 263
PGxCAP (PWM Generator x Capture) ..................... 293
PGxCONH (PWM Generator x Control High) ........... 275
PGxCONL (PWM Generator x Control Low) ............ 274
PGxDC (PWM Generator x Duty Cycle) ................... 289
PGxDCA (PWM Generator x
Duty Cycle Adjustment) .................................... 290
PGxDTH (PWM Generator x Dead-Time High) ........ 292
PGxDTL (PWM Generator x Dead-Time Low) ......... 292
PGxEVTH (PWM Generator x Event High) .............. 282
PGxEVTL (PWM Generator x Event Low)................ 281
PGxIOCONH (PWM Generator x
I/O Control High)............................................... 280
PGxIOCONL (PWM Generator x
I/O Control Low) ............................................... 279
PGxLEBH (PWM Generator x Leading-Edge
Blanking High) .................................................. 288
PGxLEBL (PWM Generator x Leading-Edge
Blanking Low) ................................................... 287
PGxPER (PWM Generator x Period)........................ 290
PGxPHASE (PWM Generator x Phase) ................... 289
PGxSTAT (PWM Generator x Status) ...................... 277
PGxTRIGA (PWM Generator x Trigger A)................ 291
PGxTRIGB (PWM Generator x Trigger B)................ 291
PGxTRIGC (PWM Generator x Trigger C) ............... 291
PGxyPCIH (PWM Generator xy PCI High) ............... 285
PGxyPCIL (PWM Generator xy PCI Low) ................ 283
PLLDIV (PLL Output Divider).................................... 199
PLLFBD (PLL Feedback Divider) ............................. 197
PMADDR (PMP Address)......................................... 411
PMAEN (PMP Pin Enable) ....................................... 414
PMCON (PMP Control)............................................. 406
PMCONH (PMP Control High).................................. 408
PMD1 (PMD1 Control).............................................. 498
PMD2 (PMD2 Control).............................................. 499
PMD3 (PMD3 Control).............................................. 500
PMD4 (PMD4 Control).............................................. 501
PMD6 (PMD6 Control).............................................. 502
PMD7 (PMD7 Control).............................................. 503
PMD8 (PMD8 Control).............................................. 504
PMDIN1 (PMP Data Input/Output Low) .................... 413
PMDIN2 (PMP Data Input/Output High) ................... 413
PMDOUT1 (PMP Data Output Low) ......................... 412
PMDOUT2 (PMP Data Output High) ........................ 412
PMMODE (PMP Mode) ............................................ 409
PMRADDR (PMP Read Address)............................. 417
PMRDIN (PMP Read Input Data) ............................. 418
PMSTAT (PMP Status)............................................. 415
PMWADDR (PMP Write Address) ............................ 416
PORTx (Input Data for PORTx) ................................ 123
POSxCNTH (Position x Counter High) ..................... 344
POSxCNTL (Position x Counter Low)....................... 344
POSxHLD (Position x Counter Hold)........................ 345
PTGADJ (PTG Adjust).............................................. 468
PTGBTE (PTG Broadcast Trigger Enable Low) ....... 464
PTGBTEH (PTG Broadcast Trigger
Enable High)..................................................... 464
PTGC0LIM (PTG Counter 0 Limit)............................ 467
PTGC1LIM (PTG Counter 1 Limit)............................ 467
PTGCON (PTG Control/Status High) ....................... 463
2017-2018 Microchip Technology Inc. DS70005349E-page 617
dsPIC33CK256MP508 FAMILY
PTGCST (PTG Control/Status Low) ......................... 461
PTGHOLD (PTG Hold) ............................................. 465
PTGL0 (PTG Literal 0).............................................. 468
PTGQPTR (PTG Step Queue Pointer) ..................... 469
PTGQUEn (PTG Step Queue n Pointer) .................. 469
PTGSDLIM (PTG Step Delay Limit).......................... 466
PTGT0LIM (PTG Timer0 Limit)................................. 465
PTGT1LIM (PTG Timer1 Limit)................................. 466
PWMEVTy (PWM Event Output Control y)............... 271
QEIxCON (QEIx Control).......................................... 338
QEIxGECH (QEIx Greater Than or Equal
Compare High) ................................................. 354
QEIxGECL (QEIx Greater Than or Equal
Compare Low) .................................................. 354
QEIxICH (QEIx Initialization/Capture High) .............. 352
QEIxICL (QEIx Initialization/Capture Low)................ 352
QEIxIOC (QEIx I/O Control)...................................... 340
QEIxIOCH (QEIx I/O Control High)........................... 341
QEIxLECH (QEIx Less Than or Equal
Compare High) ................................................. 353
QEIxLECL (QEIx Less Than or Equal
Compare Low) .................................................. 353
QEIxSTAT (QEIx Status) .......................................... 342
RCON (Reset Control) ................................................ 97
REFOCONH (Reference Clock Control High) .......... 205
REFOCONL (Reference Clock Control Low)............ 204
RPCON (Peripheral Remapping Configuration) ....... 146
RPINR0 (Peripheral Pin Select Input 0).................... 146
RPINR1 (Peripheral Pin Select Input 1).................... 147
RPINR10 (Peripheral Pin Select Input 10)................ 151
RPINR11 (Peripheral Pin Select Input 11)................ 152
RPINR12 (Peripheral Pin Select Input 12)................ 152
RPINR13 (Peripheral Pin Select Input 13)................ 153
RPINR14 (Peripheral Pin Select Input 14)................ 153
RPINR15 (Peripheral Pin Select Input 15)................ 154
RPINR16 (Peripheral Pin Select Input 16)................ 154
RPINR17 (Peripheral Pin Select Input 17)................ 155
RPINR18 (Peripheral Pin Select Input 18)................ 155
RPINR19 (Peripheral Pin Select Input 19)................ 156
RPINR2 (Peripheral Pin Select Input 2).................... 147
RPINR20 (Peripheral Pin Select Input 20)................ 156
RPINR21 (Peripheral Pin Select Input 21)................ 157
RPINR22 (Peripheral Pin Select Input 22)................ 157
RPINR23 (Peripheral Pin Select Input 23)................ 158
RPINR26 (Peripheral Pin Select Input 26)................ 158
RPINR27 (Peripheral Pin Select Input 27)................ 159
RPINR29 (Peripheral Pin Select Input 29)................ 159
RPINR3 (Peripheral Pin Select Input 3).................... 148
RPINR30 (Peripheral Pin Select Input 30)................ 160
RPINR32 (Peripheral Pin Select Input 32)................ 160
RPINR33 (Peripheral Pin Select Input 33)................ 161
RPINR37 (Peripheral Pin Select Input 37)................ 161
RPINR38 (Peripheral Pin Select Input 38)................ 162
RPINR4 (Peripheral Pin Select Input 4).................... 148
RPINR42 (Peripheral Pin Select Input 42)................ 162
RPINR43 (Peripheral Pin Select Input 43)................ 163
RPINR44 (Peripheral Pin Select Input 44)................ 163
RPINR45 (Peripheral Pin Select Input 45)................ 164
RPINR46 (Peripheral Pin Select Input 46)................ 164
RPINR47 (Peripheral Pin Select Input 47)................ 165
RPINR48 (Peripheral Pin Select Input 48)................ 165
RPINR49 (Peripheral Pin Select Input 49)................ 166
RPINR5 (Peripheral Pin Select Input 5).................... 149
RPINR6 (Peripheral Pin Select Input 6).................... 149
RPINR7 (Peripheral Pin Select Input 7).................... 150
RPINR8 (Peripheral Pin Select Input 8).................... 150
RPINR9 (Peripheral Pin Select Input 9) ................... 151
RPOR0 (Peripheral Pin Select Output 0) ................. 167
RPOR1 (Peripheral Pin Select Output 1) ................. 167
RPOR10 (Peripheral Pin Select Output 10) ............. 172
RPOR11 (Peripheral Pin Select Output 11) ............. 172
RPOR12 (Peripheral Pin Select Output 12) ............. 173
RPOR13 (Peripheral Pin Select Output 13) ............. 173
RPOR14 (Peripheral Pin Select Output 14) ............. 174
RPOR15 (Peripheral Pin Select Output 15) ............. 174
RPOR16 (Peripheral Pin Select Output 16) ............. 175
RPOR17 (Peripheral Pin Select Output 17) ............. 175
RPOR18 (Peripheral Pin Select Output 18) ............. 176
RPOR19 (Peripheral Pin Select Output 19) ............. 176
RPOR2 (Peripheral Pin Select Output 2) ................. 168
RPOR20 (Peripheral Pin Select Output 20) ............. 177
RPOR21 (Peripheral Pin Select Output 21) ............. 177
RPOR22 (Peripheral Pin Select Output 22) ............. 178
RPOR23 (Peripheral Pin Select Output 23) ............. 178
RPOR24 (Peripheral Pin Select Output 24) ............. 179
RPOR25 (Peripheral Pin Select Output 25) ............. 179
RPOR26 (Peripheral Pin Select Output 26) ............. 180
RPOR3 (Peripheral Pin Select Output 3) ................. 168
RPOR4 (Peripheral Pin Select Output 4) ................. 169
RPOR5 (Peripheral Pin Select Output 5) ................. 169
RPOR6 (Peripheral Pin Select Output 6) ................. 170
RPOR7 (Peripheral Pin Select Output 7) ................. 170
RPOR8 (Peripheral Pin Select Output 8) ................. 171
RPOR9 (Peripheral Pin Select Output 9) ................. 171
SENTxCON1 (SENTx Control 1).............................. 423
SENTxDATH (SENTx Receive Data High)............... 427
SENTxDATL (SENTx Receive Data Low) ................ 427
SENTxSTAT (SENTx Status) ................................... 425
SLPxCONH (DACx Slope Control High) .................. 331
SLPxCONL (DACx Slope Control Low).................... 332
SLPxDAT (DACx Slope Data) .................................. 334
SPIxCON1H (SPIx Control 1 High) .......................... 384
SPIxCON1L (SPIx Control 1 Low)............................ 382
SPIxCON2L (SPIx Control 2 Low)............................ 386
SPIxIMSKH (SPIx Interrupt Mask High) ................... 391
SPIxIMSKL (SPIx Interrupt Mask Low)..................... 390
SPIxSTATH (SPIx Status High)................................ 389
SPIxSTATL (SPIx Status Low) ................................. 387
SR (CPU STATUS) ............................................ 34, 111
T1CON (Timer1 Control) .......................................... 430
TRISx (Output Enable for PORTx) ........................... 123
UxBRG (UARTx Baud Rate) .................................... 366
UxBRGH (UARTx Baud Rate High) ......................... 366
UxINT (UARTx Interrupt) .......................................... 375
UxMODE (UARTx Configuration) ............................. 358
UxMODEH (UARTx Configuration High) .................. 360
UxP1 (UARTx Timing Parameter 1) ......................... 368
UxP2 (UARTx Timing Parameter 2) ......................... 369
UxP3 (UARTx Timing Parameter 3) ......................... 370
UxP3H (UARTx Timing Parameter 3 High) .............. 370
UxRXCHK (UARTx Receive Checksum).................. 372
UxRXREG (UARTx Receive Buffer)......................... 367
UxSCCON (UARTx Smart Card Configuration) ....... 373
UxSCINT (UARTx Smart Card Interrupt).................. 374
UxSTA (UARTx Status) ............................................ 362
UxSTAH (UARTx Status High) ................................. 364
UxTXCHK (UARTx Transmit Checksum) ................. 371
UxTXREG (UARTx Transmit Buffer) ........................ 367
VELxCNT (Velocity x Counter) ................................. 346
VELxCNTH (Velocity x Counter High) ...................... 346
VELxHLD (Velocity x Counter Hold)......................... 347
VREGCON (Voltage Regulator Control)................... 527
dsPIC33CK256MP508 FAMILY
DS70005349E-page 618 2017-2018 Microchip Technology Inc.
WDTCONH (Watchdog Timer Control High)............. 530
WDTCONL (Watchdog Timer Control Low).............. 529
Resets ................................................................................. 95
Brown-out Reset (BOR) ..............................................95
Configuration Mismatch Reset (CM)........................... 95
Illegal Condition Reset (IOPUWR) .............................. 95
Illegal Opcode .....................................................95
Security ............................................................... 95
Uninitialized W Register...................................... 95
Master Clear (MCLR) Pin Reset ................................. 95
Power-on Reset (POR) ............................................... 95
RESET Instruction (SWR)............................................ 95
Resources................................................................... 96
Trap Conflict Reset (TRAPR)...................................... 95
Watchdog Timer Time-out Reset (WDTO).................. 95
Revision History ................................................................ 609
S
SENTx Protocol Data Frames........................................... 420
Serial Peripheral Interface (SPI) ....................................... 377
Serial Peripheral Interface. See SPI.
SFR Blocks
000h ............................................................................ 52
100h ............................................................................ 53
200h ............................................................................ 54
300h ............................................................................ 55
400h ............................................................................ 56
500h ............................................................................ 57
600h ............................................................................ 58
800h ............................................................................ 59
900h ............................................................................ 60
A00h............................................................................ 61
B00h............................................................................ 62
C00h ........................................................................... 63
D00h ........................................................................... 64
E00h............................................................................ 65
F00h............................................................................ 66
Single-Edge Nibble Transmission (SENT) ........................ 419
Control Registers ......................................................423
Receive Mode ........................................................... 422
Configuration..................................................... 422
Transmit Mode .......................................................... 421
Configuration..................................................... 421
Single-Edge Nibble Transmission for
Automotive Applications............................................ 419
Single-Edge Nibble Transmission. See SENT.
Software Simulator
MPLAB X SIM ........................................................... 545
Special Features of the CPU............................................. 507
SPI
Control Registers ......................................................382
T
Thermal Operating Conditions.......................................... 548
Thermal Packaging Characteristics .................................. 548
Third-Party Development Tools ........................................ 546
Timer1............................................................................... 429
Control Register........................................................ 430
Timing Diagrams
BOR and Master Clear Reset Characteristics .......... 563
Clock/Instruction Cycle ............................................. 189
External Clock........................................................... 560
High-Speed PWMx Fault Characteristics ................. 565
High-Speed PWMx Module Characteristics.............. 565
I/O Characteristics .................................................... 563
I2Cx Bus Data (Master Mode) .................................. 574
I2Cx Bus Data (Slave Mode) .................................... 576
I2Cx Bus Start/Stop Bits (Master Mode)................... 574
I2Cx Bus Start/Stop Bits (Slave Mode)..................... 576
QEI Interface Signals................................................ 335
SPIx Master Mode (Full-Duplex, CKE = 0,
CKP = x, SMP = 1) ........................................... 569
SPIx Master Mode (Full-Duplex, CKE = 1,
CKP = x, SMP = 1) ........................................... 568
SPIx Master Mode (Half-Duplex, Transmit Only,
CKE = 0)........................................................... 566
SPIx Master Mode (Half-Duplex, Transmit Only,
CKE = 1)........................................................... 567
SPIx Slave Mode (Full-Duplex, CKE = 0,
CKP = x, SMP = 0) ........................................... 570
SPIx Slave Mode (Full-Duplex, CKE = 1,
CKP = x, SMP = 0) ........................................... 572
UARTx I/O Characteristics........................................ 578
U
UART
Architectural Overview.............................................. 356
Character Frame....................................................... 357
Control Registers ...................................................... 358
Data Buffers.............................................................. 357
Protocol Extensions.................................................. 357
Unique Device Identifier (UDID) ......................................... 45
Unique Device Identifier. See UDID.
Universal Asynchronous Receiver
Transmitter (UART) .................................................. 355
Universal Asynchronous Receiver Transmitter. See UART.
User OTP Memory............................................................ 526
V
Voltage Regulator (On-Chip) ............................................ 526
W
Watchdog Timer (WDT).................................................... 507
WWW Address ................................................................. 619
WWW, On-Line Support ..................................................... 15
2017-2018 Microchip Technology Inc. DS70005349E-page 619
dsPIC33CK256MP508
THE MICROCHIP WEBSITE
Microchip provides online support via our WWW site at
www.microchip.com. This website is used as a means
to make files and information easily available to
customers. Accessible by using your favorite Internet
browser, the website contains the following information:
•Product Support – Data sheets and errata,
application notes and sample programs, design
resources, user’s guides and hardware support
documents, latest software releases and archived
software
•General Technical Support – Frequently Asked
Questions (FAQ), technical support requests,
online discussion groups, Microchip consultant
program member listing
•Business of Microchip – Product selector and
ordering guides, latest Microchip press releases,
listing of seminars and events, listings of
Microchip sales offices, distributors and factory
representatives
CUSTOMER CHANGE NOTIFICATION
SERVICE
Microchip’s customer notification service helps keep
customers current on Microchip products. Subscribers
will receive e-mail notification whenever there are
changes, updates, revisions or errata related to a
specified product family or development tool of interest.
To register, access the Microchip website at
www.microchip.com. Under “Support”, click on
“Customer Change Notification” and follow the
registration instructions.
CUSTOMER SUPPORT
Users of Microchip products can receive assistance
through several channels:
• Distributor or Representative
• Local Sales Office
• Field Application Engineer (FAE)
• Technical Support
Customers should contact their distributor,
representative or Field Application Engineer (FAE) for
support. Local sales offices are also available to help
customers. A listing of sales offices and locations is
included in the back of this document.
Technical support is available through the website
at: http://microchip.com/support
dsPIC33CK256MP508
DS70005349E-page 620 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 621
dsPIC33CK256MP508 FAMILY
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
Architecture: 33 = 16-Bit Digital Signal Controller
Product Group: MP = Motor Control/Power Supply
Pin Count: 02 = 28-pin
03 = 36-pin
05 = 48-pin
06 = 64-pin
08 = 80-pin
Temperature Range: I=-40C to +85C (Industrial)
E=-40C to +125C (Extended)
Package: SS = Plastic Shrink Small Outline – (28-pin) 5.30 mm body (SSOP)
2N = Ultra Thin Plastic Quad Flat, No Lead – (28-pin) 6x6 mm body (UQFN)
M5 = Ultra Thin Plastic Quad Flat, No Lead – (36-pin) 5x5 mm body (UQFN)
PT = Thin Quad Flatpack – (48-pin) 7x7 mm body (TQFP)
PT = Plastic Thin Quad Flatpack – (64-pin) 10x10 mm body (TQFP)
MR = Plastic Quad Flat, No Lead – (64-pin) 9x9 mm body (QFN)
PT = Plastic Thin Quad Flatpack – (80-pin) 12x12 mm body (TQFP)
Examples:
dsPIC33CK256MP506-I/PT:
dsPIC33, Enhanced Performance,
64-Kbyte Program Memory, SMPS,
64-Pin, Industrial Temperature,
TQFP Package.
Microchip Trademark
Architecture
Flash Memory Family
Program Memory Size (Kbyte)
Product Group
Pin Count
Temperature Range
Package
Pattern
dsPIC 33 CK 64 MP 508 T I / PT - XXX
Tape and Reel Flag (if applicable)
dsPIC33CK256MP508 FAMILY
DS70005349E-page 622 2017-2018 Microchip Technology Inc.
NOTES:
2017-2018 Microchip Technology Inc. DS70005349E-page 623
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights unless otherwise stated.
Trademarks
The Microchip name and logo, the Microchip logo, AnyRate, AVR,
AVR logo, AVR Freaks, BitCloud, chipKIT, chipKIT logo,
CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR, Heldo,
JukeBlox, KeeLoq, Kleer, LANCheck, LINK MD, maXStylus,
maXTouch, MediaLB, megaAVR, MOST, MOST logo, MPLAB,
OptoLyzer, PIC, picoPower, PICSTART, PIC32 logo, Prochip
Designer, QTouch, SAM-BA, SpyNIC, SST, SST Logo,
SuperFlash, tinyAVR, UNI/O, and XMEGA are registered
trademarks of Microchip Technology Incorporated in the U.S.A.
and other countries.
ClockWorks, The Embedded Control Solutions Company,
EtherSynch, Hyper Speed Control, HyperLight Load, IntelliMOS,
mTouch, Precision Edge, and Quiet-Wire are registered
trademarks of Microchip Technology Incorporated in the U.S.A.
Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any
Capacitor, AnyIn, AnyOut, BodyCom, CodeGuard,
CryptoAuthentication, CryptoAutomotive, CryptoCompanion,
CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average
Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial
Programming, ICSP, INICnet, Inter-Chip Connectivity,
JitterBlocker, KleerNet, KleerNet logo, memBrain, Mindi, MiWi,
motorBench, MPASM, MPF, MPLAB Certified logo, MPLIB,
MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation,
PICDEM, PICDEM.net, PICkit, PICtail, PowerSmart, PureSilicon,
QMatrix, REAL ICE, Ripple Blocker, SAM-ICE, Serial Quad I/O,
SMART-I.S., SQI, SuperSwitcher, SuperSwitcher II, Total
Endurance, TSHARC, USBCheck, VariSense, ViewSpan,
WiperLock, Wireless DNA, and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated in
the U.S.A.
Silicon Storage Technology is a registered trademark of Microchip
Technology Inc. in other countries.
GestIC is a registered trademark of Microchip Technology
Germany II GmbH & Co. KG, a subsidiary of Microchip
Technology Inc., in other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2018, Microchip Technology Incorporated, All Rights Reserved.
ISBN: 978-1-5224-3930-1
Note the following details of the code protection feature on Microchip devices:
• Microchip products meet the specification contained in their particular Microchip Data Sheet.
• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
• Microchip is willing to work with the customer who is concerned about the integrity of their code.
• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
QUALITY MANAGEMENT S
YSTEM
CERTIFIED BY DNV
== ISO/TS 16949 ==
DS70005349E-page 624 2017-2018 Microchip Technology Inc.
AMERICAS
Corporate Office
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7200
Fax: 480-792-7277
Technical Support:
http://www.microchip.com/
support
Web Address:
www.microchip.com
Atlanta
Duluth, GA
Tel: 678-957-9614
Fax: 678-957-1455
Austin, TX
Tel: 512-257-3370
Boston
Westborough, MA
Tel: 774-760-0087
Fax: 774-760-0088
Chicago
Itasca, IL
Tel: 630-285-0071
Fax: 630-285-0075
Dallas
Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
Detroit
Novi, MI
Tel: 248-848-4000
Houston, TX
Tel: 281-894-5983
Indianapolis
Noblesville, IN
Tel: 317-773-8323
Fax: 317-773-5453
Tel: 317-536-2380
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
Tel: 951-273-7800
Raleigh, NC
Tel: 919-844-7510
New York, NY
Tel: 631-435-6000
San Jose, CA
Tel: 408-735-9110
Tel: 408-436-4270
Canada - Toronto
Tel: 905-695-1980
Fax: 905-695-2078
ASIA/PACIFIC
Australia - Sydney
Tel: 61-2-9868-6733
China - Beijing
Tel: 86-10-8569-7000
China - Chengdu
Tel: 86-28-8665-5511
China - Chongqing
Tel: 86-23-8980-9588
China - Dongguan
Tel: 86-769-8702-9880
China - Guangzhou
Tel: 86-20-8755-8029
China - Hangzhou
Tel: 86-571-8792-8115
China - Hong Kong SAR
Tel: 852-2943-5100
China - Nanjing
Tel: 86-25-8473-2460
China - Qingdao
Tel: 86-532-8502-7355
China - Shanghai
Tel: 86-21-3326-8000
China - Shenyang
Tel: 86-24-2334-2829
China - Shenzhen
Tel: 86-755-8864-2200
China - Suzhou
Tel: 86-186-6233-1526
China - Wuhan
Tel: 86-27-5980-5300
China - Xian
Tel: 86-29-8833-7252
China - Xiamen
Tel: 86-592-2388138
China - Zhuhai
Tel: 86-756-3210040
ASIA/PACIFIC
India - Bangalore
Tel: 91-80-3090-4444
India - New Delhi
Tel: 91-11-4160-8631
India - Pune
Tel: 91-20-4121-0141
Japan - Osaka
Tel: 81-6-6152-7160
Japan - Tokyo
Tel: 81-3-6880- 3770
Korea - Daegu
Tel: 82-53-744-4301
Korea - Seoul
Tel: 82-2-554-7200
Malaysia - Kuala Lumpur
Tel: 60-3-7651-7906
Malaysia - Penang
Tel: 60-4-227-8870
Philippines - Manila
Tel: 63-2-634-9065
Singapore
Tel: 65-6334-8870
Taiwan - Hsin Chu
Tel: 886-3-577-8366
Taiwan - Kaohsiung
Tel: 886-7-213-7830
Taiwan - Taipei
Tel: 886-2-2508-8600
Thailand - Bangkok
Tel: 66-2-694-1351
Vietnam - Ho Chi Minh
Tel: 84-28-5448-2100
EUROPE
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
Finland - Espoo
Tel: 358-9-4520-820
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
Germany - Garching
Tel: 49-8931-9700
Germany - Haan
Tel: 49-2129-3766400
Germany - Heilbronn
Tel: 49-7131-67-3636
Germany - Karlsruhe
Tel: 49-721-625370
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Germany - Rosenheim
Tel: 49-8031-354-560
Israel - Ra’anana
Tel: 972-9-744-7705
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Italy - Padova
Tel: 39-049-7625286
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Norway - Trondheim
Tel: 47-7288-4388
Poland - Warsaw
Tel: 48-22-3325737
Romania - Bucharest
Tel: 40-21-407-87-50
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
Sweden - Gothenberg
Tel: 46-31-704-60-40
Sweden - Stockholm
Tel: 46-8-5090-4654
UK - Wokingham
Tel: 44-118-921-5800
Fax: 44-118-921-5820
Worldwide Sales and Service
08/15/18