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HRPWM with Fine Edge
Placement
dsPIC33/PIC24 Family Reference Manual
Introduction
Note:  This family reference manual section is meant to serve as a complement to device data sheets. Depending on
the device variant, this manual section may not apply to all dsPIC33 devices. Please consult the note at the
beginning of the chapter in the specific device data sheet to check whether this document supports the device you
are using.
Device data sheets and family reference manual sections are available for download from the Microchip Worldwide
Website at: www.microchip.com.
This document describes the features and use of the High-Resolution Pulse-Width Modulated (PWM) with Fine Edge
Placement. 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 Motor Control: Brushed DC, BLDC, PMSM, ACIM, SRM, Stepper, etc.
• Inverters
• Battery Chargers
• Digital Lighting
• Power Factor Correction (PFC)
High-Level Features
• Up to Eight Independent PWM Generators, each with Dual Outputs
• Operating modes:
– Independent Edge PWM mode
– Variable Phase PWM mode
– Independent Edge PWM mode, Dual Output
– Center-Aligned PWM mode
– Double Update Center-Aligned PWM mode
– Dual Edge Center-Aligned PWM mode
• Output modes:
– Complementary
– Independent
– Push-Pull
• Dead-Time Generator
• Dead-Time Compensation
• Leading-Edge Blanking (LEB)
• Output Override for Fault Handling
• Flexible Period/Duty Cycle Updating Options
• PWM Control Inputs (PCI) for PWM Pin Overrides and External PWM Synchronization
• Advanced Triggering Options
• Combinatorial Logic Output
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 1
• PWM Event Outputs
HRPWM with Fine Edge Placement
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 2
Table of Contents
Introduction.....................................................................................................................................................1
High-Level Features....................................................................................................................................... 1
1. Registers................................................................................................................................................. 5
2. Register Maps......................................................................................................................................... 6
2.1. Common Functions Register Map................................................................................................7
2.2. PWM Generator Register Map................................................................................................... 21
3. Architecture Overview...........................................................................................................................51
4. Operation.............................................................................................................................................. 54
4.1. PWM Clocking............................................................................................................................54
4.2. PWM Generator (PG) Features..................................................................................................59
4.3. Common Features......................................................................................................................95
4.4. Lock and Write Restrictions......................................................................................................100
5. Application Examples..........................................................................................................................105
5.1. Six-Step Commutation of Three-Phase BLDC Motor...............................................................105
5.2. Three-Phase Sinusoidal Control of PMSM/ACIM Motors.........................................................114
5.3. Simple Complementary PWM Output.......................................................................................117
5.4. Cycle-by-Cycle Current Limit Mode..........................................................................................118
5.5. External Period Reset Mode.................................................................................................... 120
6. Interrupts............................................................................................................................................. 123
7. Operation in Power-Saving Modes..................................................................................................... 124
7.1. Operation in Sleep Mode..........................................................................................................124
7.2. Operation in Idle Mode............................................................................................................. 124
8. Related Application Notes...................................................................................................................125
9. Revision History.................................................................................................................................. 126
9.1. Revision A (August 2017).........................................................................................................126
9.2. Revision B (February 2018)..................................................................................................... 126
9.3. Revision C (February 2019)..................................................................................................... 126
9.4. Revision D (December 2020)................................................................................................... 126
The Microchip Website...............................................................................................................................128
Product Change Notification Service..........................................................................................................128
Customer Support...................................................................................................................................... 128
Microchip Devices Code Protection Feature..............................................................................................128
Legal Notice............................................................................................................................................... 129
Trademarks................................................................................................................................................ 129
Quality Management System..................................................................................................................... 130
HRPWM with Fine Edge Placement
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 3
Worldwide Sales and Service.....................................................................................................................131
HRPWM with Fine Edge Placement
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 4
1. 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 a common function.
The LOCK bit in the PCLKCON register may be set in software to block writes to certain registers and bits. See 4.2
PWM Generator (PG) Features for more information. Writes to certain data and control registers are not safe at
certain times of a PWM cycle or when the module is enabled.
HRPWM with Fine Edge Placement
Registers
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 5
2. Register Maps
Section provides a brief summary of the related common High-Resolution2.1 Common Functions Register Map
PWM with Fine Edge Placement registers. Section provides a brief summary of2.2 PWM Generator Register Map
the PWM Generator registers. The corresponding registers appear after the summaries, followed by a detailed
description of each register.
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 6
2.1 Common Functions Register Map
Note:  The number of LOGCONy and PWMEVTy registers are device-dependent. Refer to the device data sheet for
availability.
Name Bit Pos. 7 6 5 4 3 2 1 0
PCLKCON 7:0 DIVSEL[1:0] MCLKSEL[1:0]
15:8 HRRDY HRERR LOCK
FSCL 7:0 FSCL[7:0]
15:8 FSCL[15:8]
FSMINPER 7:0 FSMINPER[7:0]
15:8 FSMINPER[15:8]
MPHASE 7:0 MPHASE[7:0]
15:8 MPHASE[15:8]
MDC 7:0 MDC[7:0]
15:8 MDC[15:8]
MPER 7:0 MPER[7:0]
15:8 MPER[15:8]
LFSR 7:0 LFSR[7:0]
15:8 LFSR[14:8]
CMBTRIGL 7:0 CTA8EN CTA7EN CTA6EN CTA5EN CTA4EN CTA3EN CTA2EN CTA1EN
15:8
CMBTRIGH 7:0 CTB8EN CTB7EN CTB6EN CTB5EN CTB4EN CTB3EN CTB2EN CTB1EN
15:8
LOGCONy 7:0 S1yPOL S2yPOL PWMLFy[1:0] PWMLFyD[2:0]
15:8 PWMS1y[3:0] PWMS2y[3:0]
PWMEVTy 7:0 EVTySEL[3:0] EVTyPGS[2:0]
15:8 EVTyOEN EVTyPOL EVTySTRD EVTySYNC
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 7
2.1.1 PWM Clock Control Register
Name:  PCLKCON
Legend: C = Clearable bit
Bit 15 14 13 12 11 10 9 8
HRRDY HRERR LOCK
Access R R/C R/W
Reset 0 0 0
Bit 7 6 5 4 3 2 1 0
DIVSEL[1:0] MCLKSEL[1:0]
Access R/W R/W R/W R/W
Reset 0 0 0 0
Bit 15 – HRRDY High-Resolution Ready
Note:  This bit is not present on all devices. Refer to the device-specific data sheet for availability.
Value Description
1The high-resolution circuitry is ready
0The high-resolution circuitry is not ready
Bit 14 – HRERR  High-Resolution Error(1,2)
Notes: 
1. This bit is not present on all devices. Refer to the device-specific data sheet for availability.
2. User software may write a ‘ ’ to this location to request a reset of the High-Resolution block when HRRDY = .0 1
Value Description
1An error has occurred; PWM signals will have limited resolution
0No error has occurred; PWM signals will have full resolution when HRRDY = 1
Bit 8 – LOCK Lock
Note:  A device-specific unlock sequence must be performed before this bit can be cleared. Refer to the device data
sheet for the unlock sequence.
Value Description
1Write-protected registers and bits are locked
0Write-protected registers and bits are unlocked
Bits 5:4 – DIVSEL[1:0] PWM Clock Divider Selection
Value Description
11 Divide ratio is 1:16
10 Divide ratio is 1:8
01 Divide ratio is 1:4
00 Divide ratio is 1:2
Bits 1:0 – MCLKSEL[1:0] PWM Master Clock Selection
Clock sources are device-specific. Refer to the device data sheet for selections.
Note:  Do not change the MCLKSEL[1:0] bits while ON (PGxCONL[15]) = .1
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 8
2.1.2 Frequency Scale Register
Name:  FSCL
Bit 15 14 13 12 11 10 9 8
FSCL[15:8]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
FSCL[7:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bits 15:0 – FSCL[15:0] Frequency Scale Register
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.
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 9
2.1.3 Frequency Scaling Minimum Period Register
Name:  FSMINPER
Bit 15 14 13 12 11 10 9 8
FSMINPER[15:8]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
FSMINPER[7:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bits 15:0 – FSMINPER[15:0] Frequency Scaling Minimum Period Register
This register holds the minimum clock period (maximum clock frequency) that can be produced by the frequency
scaling circuit.
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 10
2.1.4 Master Phase Register
Name:  MPHASE
Bit 15 14 13 12 11 10 9 8
MPHASE[15:8]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
MPHASE[7:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bits 15:0 – MPHASE[15:0] Master Phase Register
This register holds the phase offset value that can be shared by multiple PWM Generators.
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 11
2.1.5 Master Duty Cycle Register
Name:  MDC
Bit 15 14 13 12 11 10 9 8
MDC[15:8]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
MDC[7:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bits 15:0 – MDC[15:0] Master Duty Cycle Register
This register holds the duty cycle value that can be shared by multiple PWM Generators.
Note:  Duty cycle values less than 0x0008 should not be used (0x0020 in High-Resolution mode).
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 12
2.1.6 Master Period Register
Name:  MPER
Bit 15 14 13 12 11 10 9 8
MPER[15:8]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
MPER[7:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bits 15:0 – MPER[15:0] Master Period Register
This register holds the period value that can be shared by multiple PWM Generators.
Note:  Period values less than 0x0020 should not be used (0x0080 in High-Resolution mode).
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 13
2.1.7 Linear Feedback Shift Register
Name:  LFSR
Bit 15 14 13 12 11 10 9 8
LFSR[14:8]
Access R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
LFSR[7:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bits 14:0 – LFSR[14:0] Linear Feedback Shift Register
A read of this register will provide a 15-bit pseudorandom value.
HRPWM with Fine Edge Placement
Register Maps
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2.1.8 Combinational Trigger Register Low
Name:  CMBTRIGL
Bit 15 14 13 12 11 10 9 8
Access
Reset
Bit 7 6 5 4 3 2 1 0
CTA8EN CTA7EN CTA6EN CTA5EN CTA4EN CTA3EN CTA2EN CTA1EN
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 – CTA8EN Enable Trigger Output from PWM Generator #8 as Source for Combinational Trigger A
Value Description
1Enables specified trigger signal to be OR’d into the Combinatorial Trigger A signal
0Disabled
Bit 6 – CTA7EN Enable Trigger Output from PWM Generator #7 as Source for Combinational Trigger A
Value Description
1Enables specified trigger signal to be OR’d into the Combinatorial Trigger A signal
0Disabled
Bit 5 – CTA6EN Enable Trigger Output from PWM Generator #6 as Source for Combinational Trigger A
Value Description
1Enables specified trigger signal to be OR’d into the Combinatorial Trigger A signal
0Disabled
Bit 4 – CTA5EN Enable Trigger Output from PWM Generator #5 as Source for Combinational Trigger A
Value Description
1Enables specified trigger signal to be OR’d into the Combinatorial Trigger A signal
0Disabled
Bit 3 – CTA4EN Enable Trigger Output from PWM Generator #4 as Source for Combinational Trigger A
Value Description
1Enables specified trigger signal to be OR’d into the Combinatorial Trigger A signal
0Disabled
Bit 2 – CTA3EN Enable Trigger Output from PWM Generator #3 as Source for Combinational Trigger A
Value Description
1Enables specified trigger signal to be OR’d into the Combinatorial Trigger A signal
0Disabled
Bit 1 – CTA2EN Enable Trigger Output from PWM Generator #2 as Source for Combinational Trigger A
Value Description
1Enables specified trigger signal to be OR’d into the Combinatorial Trigger A signal
0Disabled
Bit 0 – CTA1EN Enable Trigger Output from PWM Generator #1 as Source for Combinational Trigger A
Value Description
1Enables specified trigger signal to be OR’d into the Combinatorial Trigger A signal
0Disabled
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 15
2.1.9 Combinational Trigger Register High
Name:  CMBTRIGH
Bit 15 14 13 12 11 10 9 8
Access
Reset
Bit 7 6 5 4 3 2 1 0
CTB8EN CTB7EN CTB6EN CTB5EN CTB4EN CTB3EN CTB2EN CTB1EN
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 – CTB8EN Enable Trigger Output from PWM Generator #8 as Source for Combinational Trigger B
Value Description
1Enables specified trigger signal to be OR’d into the Combinatorial Trigger B signal
0Disabled
Bit 6 – CTB7EN Enable Trigger Output from PWM Generator #7 as Source for Combinational Trigger B
Value Description
1Enables specified trigger signal to be OR’d into the Combinatorial Trigger B signal
0Disabled
Bit 5 – CTB6EN Enable Trigger Output from PWM Generator #6 as Source for Combinational Trigger B
Value Description
1Enables specified trigger signal to be OR’d into the Combinatorial Trigger B signal
0Disabled
Bit 4 – CTB5EN Enable Trigger Output from PWM Generator #5 as Source for Combinational Trigger B
Value Description
1Enables specified trigger signal to be OR’d into the Combinatorial Trigger B signal
0Disabled
Bit 3 – CTB4EN Enable Trigger Output from PWM Generator #4 as Source for Combinational Trigger B
Value Description
1Enables specified trigger signal to be OR’d into the Combinatorial Trigger B signal
0Disabled
Bit 2 – CTB3EN Enable Trigger Output from PWM Generator #3 as Source for Combinational Trigger B
Value Description
1Enables specified trigger signal to be OR’d into the Combinatorial Trigger B signal
0Disabled
Bit 1 – CTB2EN Enable Trigger Output from PWM Generator #2 as Source for Combinational Trigger B
Value Description
1Enables specified trigger signal to be OR’d into the Combinatorial Trigger B signal
0Disabled
Bit 0 – CTB1EN Enable Trigger Output from PWM Generator #1 as Source for Combinational Trigger B
Value Description
1Enables specified trigger signal to be OR’d into the Combinatorial Trigger B signal
0Disabled
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 16
2.1.10 Combinatorial PWM Logic Control Register y
Name:  LOGCONy
Note:  ‘y’ denotes a common instance (A-F); the number of the available combinatorial PWM logic is device-
dependent. Refer to the device data sheet for availability.
Bit 15 14 13 12 11 10 9 8
PWMS1y[3:0] PWMS2y[3:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
S1yPOL S2yPOL PWMLFy[1:0] PWMLFyD[2:0]
Access R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0
Bits 15:12 – PWMS1y[3:0] Combinatorial PWM Logic Source #1 Selection
Note:  Logic function input will be connected to ‘ ’ if the PWM channel is not present.0
Value Description
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
Bits 11:8 – PWMS2y[3:0] Combinatorial PWM Logic Source #2 Selection
Note:  Logic function input will be connected to ‘ ’ if the PWM channel is not present.0
Value Description
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
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 17
Value Description
0000 PWM1H
Bit 7 – S1yPOL Combinatorial PWM Logic Source #1 Polarity
Value Description
1Input is inverted
0Input is positive logic
Bit 6 – S2yPOL Combinatorial PWM Logic Source #2 Polarity
Value Description
1Input is inverted
0Input is positive logic
Bits 5:4 – PWMLFy[1:0] Combinatorial PWM Logic Function Selection
Value Description
11 Reserved
10 PWMS1y ^ PWMS2y (XOR)
01 PWMS1y & PWMS2y (AND)
00 PWMS1y | PWMS2y (OR)
Bits 2:0 – PWMLFyD[2:0] Combinatorial PWM Logic Destination Selection
Note:  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.
Value Description
111 Logic function is assigned to PWM8
110 Logic function is assigned to PWM7
101 Logic function is assigned to PWM6
100 Logic function is assigned to PWM5
011 Logic function is assigned to PWM4
010 Logic function is assigned to PWM3
001 Logic function is assigned to PWM2
000 No assignment, combinatorial PWM logic function is disabled
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 18
2.1.11 PWM Event Output Control Register y
Name:  PWMEVTy
Note:  ‘y’ denotes a common instance (A-F); the number of the available combinatorial PWM logic is
device-dependent. Refer to the device data sheet for availability.
Bit 15 14 13 12 11 10 9 8
EVTyOEN EVTyPOL EVTySTRD EVTySYNC
Access R/W R/W R/W R/W
Reset 0 0 0 0
Bit 7 6 5 4 3 2 1 0
EVTySEL[3:0] EVTyPGS[2:0]
Access R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0
Bit 15 – EVTyOEN PWM Event Output Enable
Value Description
1Event output signal is output on the PWMEy pin
0Event output signal is internal only
Bit 14 – EVTyPOL PWM Event Output Polarity
Value Description
1Event output signal is active-low
0Event output signal is active-high
Bit 13 – EVTySTRD PWM Event Output Stretch Disable
Note:  The event signal is stretched using peripheral_clk because different PWM Generators may be operating from
different clock sources.
Value Description
1Event output signal pulse width is not stretched
0Event output signal is stretched to eight PWM clock cycles minimum
Bit 12 – EVTySYNC PWM Event Output Sync
Event output signal pulse will be synchronized to peripheral_clk.
Value Description
1Event output signal is synchronized to the system clock
0Event output is not synchronized to the system clock
Bits 7:4 – EVTySEL[3:0] PWM Event Selection
Note:  This is the PWM Generator output signal prior to Output mode logic and any output override logic.
Value Description
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)
0110 CAHALF signal (available in Center-Aligned modes only)
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
(1)
0000 Source is selected by the [2:0] bitsPGTRGSEL
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 19
Bits 2:0 – EVTyPGS[2:0] PWM Event Source Selection
Note:  No event will be produced if the selected PWM Generator is not present.
Value Description
111 PWM Generator #8
110 PWM Generator #7
101 PWM Generator #6
100 PWM Generator #5
011 PWM Generator #4
010 PWM Generator #3
001 PWM Generator #2
000 PWM Generator #1
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 20
2.2 PWM Generator Register Map
Legend: x = PWM Generator #; y = F, CL, FF or S.
Name Bit Pos. 7 6 5 4 3 2 1 0
Reserved
PGxCONL 7:0 HREN CLKSEL[1:0] MODSEL[2:0]
15:8 ON TRGCNT[2:0]
PGxCONH 7:0 Reserved TRGMOD SOCS[3:0]
15:8 MDCSEL MPERSEL MPHSEL MSTEN UPDMOD[2:0]
PGxSTAT 7:0 TRSET TRCLR CAP UPDATE UPDREQ STEER CAHALF TRIG
15:8 SEVT FLTEVT CLEVT FFEVT SACT FLTACT CLACT FFACT
PGxIOCONL 7:0 FLTDAT[1:0] CLDAT[1:0] FFDAT[1:0] DBDAT[1:0]
15:8 CLMOD SWAP OVRENH OVRENL OVRDAT[1:0] OSYNC[1:0]
PGxIOCONH 7:0 PMOD[1:0] PENH PENL POLH POLL
15:8 CAPSRC[2:0] DTCMPSEL
PGxEVTL 7:0 UPDTRG[1:0] PGTRGSEL[2:0]
15:8 ADTR1PS[4:0] ADTR1EN3 ADTR1EN2 ADTR1EN1
PGxEVTH 7:0 ADTR2EN3 ADTR2EN2 ADTR2EN1 ADTR1OFS[4:0]
15:8 FLTIEN CLIEN FFIEN SIEN IEVTSEL[1:0]
PGxyPCIL 7:0 SWTERM PSYNC PPS PSS[4:0]
15:8 TSYNCDIS TERM[2:0] AQPS AQSS[2:0]
PGxyPCIH 7:0 SWPCI SWPCIM[1:0] LATMOD TQPS TQSS[2:0]
15:8 BPEN BPSEL[2:0] ACP[2:0]
Reserved
PGxLEBL 7:0 LEB[10:6] [2:0]
15:8 LEB[18:11]
PGxLEBH 7:0 PHR PHF PLR PLF
15:8 PWMPCI[2:0]
PGxPHASE 7:0 PGxPHASE[7:0]
15:8 PGxPHASE[15:8]
Reserved
PGxDC 7:0 PGxDC[7:0]
15:8 PGxDC[15:8]
PGxDCA 7:0 PGxDCA[7:0]
15:8
PGxPER 7:0 PGxPER[7:0]
15:8 PGxPER[15:8]
PGxTRIGA 7:0 PGxTRIGA[7:0]
15:8 PGxTRIGA[15:8]
PGxTRIGB 7:0 PGxTRIGB[7:0]
15:8 PGxTRIGB[15:8]
PGxTRIGC 7:0 PGxTRIGC[7:0]
15:8 PGxTRIGC[15:8]
PGxDTL 7:0 DTL[7:0]
15:8 DTL[13:8]
PGxDTH 7:0 DTH[7:0]
15:8 DTH[13:8]
PGxCAP 7:0 PGxCAP[6:0]
15:8 PGxCAP[14:7]
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 21
2.2.1 PWM Generator x Control Register Low
Name:  PGxCONL
Bit 15 14 13 12 11 10 9 8
ON TRGCNT[2:0]
Access R/W R/W R/W R/W
Reset 0 0 0 0
Bit 7 6 5 4 3 2 1 0
HREN CLKSEL[1:0] MODSEL[2:0]
Access R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0
Bit 15 – ON PWM Generator x Enable
Value Description
1PWM Generator is enabled
0PWM Generator is not enabled
Bits 10:8 – TRGCNT[2:0] PWM Generator x Trigger Count Select
Value Description
111 PWM Generator produces 8 PWM cycles after triggered
110 PWM Generator produces 7 PWM cycles after triggered
101 PWM Generator produces 6 PWM cycles after triggered
100 PWM Generator produces 5 PWM cycles after triggered
011 PWM Generator produces 4 PWM cycles after triggered
010 PWM Generator produces 3 PWM cycles after triggered
001 PWM Generator produces 2 PWM cycles after triggered
000 PWM Generator produces 1 PWM cycle after triggered
Bit 7 – HREN PWM Generator x High-Resolution Enable
Note:  This bit is not present on all devices. Refer to the device-specific data sheet for availability. When High-
Resolution mode is not available, this bit will read as ‘ ’.0
Value Description
1PWM Generator x operates in High-Resolution mode
0PWM Generator x operates in Standard Resolution mode
Bits 4:3 – CLKSEL[1:0]  Clock Selection(1)
Notes: 
1. Do not change the CLKSEL[1:0] bits while ON (PGxCONL[15]) = .1
2. The PWM Generator time base operates from the frequency scaling circuit clock, effectively scaling the duty
cycle and period of the PWM Generator output.
3. This clock source should not be used when HREN (PGxCONL[7]) = .1
Value Description
11 PWM Generator uses the master clock scaled by the frequency scaling circuit
(2,3)
10 PWM Generator uses the master clock divided by the clock divider circuit
(2)
01 PWM Generator uses the master clock selected by the MCLKSEL[1:0] (PCLKCON[1:0]) control bits
00 No clock selected, PWM Generator is in the lowest power state (default)
Bits 2:0 – MODSEL[2:0] PWM Generator x Mode Selection
Value Description
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
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 22
Value Description
100 Center-Aligned PWM mode
011 Reserved
010 Independent Edge PWM mode, dual output
001 Variable Phase PWM mode
000 Independent Edge PWM mode
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 23
2.2.2 PWM Generator x Control Register High
Name:  PGxCONH
Bit 15 14 13 12 11 10 9 8
MDCSEL MPERSEL MPHSEL MSTEN UPDMOD[2:0]
Access R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
Reserved TRGMOD SOCS[3:0]
Access R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0
Bit 15 – MDCSEL Master Duty Cycle Register Select
Value Description
1PWM Generator uses MDC register
0PWM Generator uses PGxDC register
Bit 14 – MPERSEL Master Period Register Select
Value Description
1PWM Generator uses MPER register
0PWM Generator uses PGxPER register
Bit 13 – MPHSEL Master Phase Register Select
Value Description
1PWM Generator uses MPHASE register
0PWM Generator uses PGxPHASE register
Bit 11 – MSTEN Master Update Enable
Value Description
1PWM Generator broadcasts software set of UPDREQ control bit and EOC signal to other PWM
Generators
0PWM Generator does not broadcast UPDREQ status bit state or EOC signal
Bits 10:8 – UPDMOD[2:0] PWM Buffer Update Mode Selection
See Table 4-5 for details.
Bit 7 – Reserved  Maintain as ‘ ’0
Bit 6 – TRGMOD PWM Generator x Trigger Mode Selection
Value Description
1PWM Generator operates in Retriggerable mode
0PWM Generator operates in Single Trigger mode
Bits 3:0 – SOCS[3:0]  Start-of-Cycle Selection bits(1,2,3)
Notes: 
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.
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 24
Value Description
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 [2:0] bits (PGxEVTL[2:0])PGTRGSEL
0011 Trigger output selected by PG3 or PG7 [2:0] bits (PGxEVTL[2:0])PGTRGSEL
0010 Trigger output selected by PG2 or PG6 [2:0] bits (PGxEVTL[2:0])PGTRGSEL
0001 Trigger output selected by PG1 or PG5 [2:0] bits (PGxEVTL[2:0])PGTRGSEL
0000 Local EOC – PWM Generator is self-triggered
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 25
2.2.3 PWM Generator x Status Register
Name:  PGxSTAT
Legend: C = Clearable bit; HS = Hardware Settable bit
Bit 15 14 13 12 11 10 9 8
SEVT FLTEVT CLEVT FFEVT SACT FLTACT CLACT FFACT
Access HS/C HS/C HS/C HS/C R R R R
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
TRSET TRCLR CAP UPDATE UPDREQ STEER CAHALF TRIG
Access W W R/HS R W R R R
Reset 0 0 0 0 0 0 0 0
Bit 15 – SEVT PCI Sync Event
Value Description
1A PCI Sync event has occurred (rising edge on PCI Sync output or PCI Sync output is high when
module is enabled)
0No PCI Sync event has occurred
Bit 14 – FLTEVT PCI Fault Active Status
Value Description
1A Fault event has occurred (rising edge on PCI Fault output or PCI Fault output is high when module is
enabled)
0No Fault event has occurred
Bit 13 – CLEVT PCI Current Limit Status
Value Description
1A PCI current limit event has occurred (rising edge on PCI current limit output or PCI current limit
output is high when module is enabled)
0No PCI current limit event has occurred
Bit 12 – FFEVT PCI Feed-Forward Active Status
Value Description
1A PCI feed-forward event has occurred (the rising edge on the PCI feed-forward output or PCI feed-
forward output is high when module is enabled)
0No PCI feed-forward event has occurred
Bit 11 – SACT PCI Sync Status
Value Description
1PCI Sync output is active
0PCI Sync output is inactive
Bit 10 – FLTACT PCI Fault Active Status
Value Description
1PCI Fault output is active
0PCI Fault output is inactive
Bit 9 – CLACT PCI Current Limit Status
Value Description
1PCI current limit output is active
0PCI current limit output is inactive
Bit 8 – FFACT PCI Feed-Forward Active Status
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 26
2.2.4 PWM Generator x I/O Control Register Low
Name:  PGxIOCONL
Bit 15 14 13 12 11 10 9 8
CLMOD SWAP OVRENH OVRENL OVRDAT[1:0] OSYNC[1:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
FLTDAT[1:0] CLDAT[1:0] FFDAT[1:0] DBDAT[1:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 15 – CLMOD Current Limit Mode Select
Value Description
1If 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
0If 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
Value Description
1The PWMxH signal is connected to the PWMxL pin and the PWMxL signal is connected to the PWMxH
pin
0PWMxH/L signals are mapped to their respective pins
Bit 13 – OVRENH User Override Enable for PWMxH Pin
Value Description
1OVRDAT[1] provides data for output on the PWMxH pin
0PWM Generator provides data for the PWMxH pin
Bit 12 – OVRENL User Override Enable for PWMxL Pin
Value Description
1OVRDAT[0] provides data for output on the PWMxL pin
0PWM Generator provides data for the PWMxL pin
Bits 11:10 – OVRDAT[1:0] Data for PWMxH/PWMxL Pins if Override is Enabled
Description
If OVRENH = , then OVRDAT[1] provides data for PWMxH.1
If OVRENL = , then OVRDAT[0] provides data for PWMxL.1
Bits 9:8 – OSYNC[1:0] User Output Override Synchronization Control
Value Description
11 Reserved
10 User output overrides via the SWAP, OVRENL/H and OVRDAT[1:0] bits occur when specified by the
UPDMOD[2:0] bits in the PGxCONH register
01 User output overrides via the SWAP, OVRENL/H and OVRDAT[1:0] bits occur immediately (as soon as
possible)
00 User output overrides via the SWAP, OVRENL/H and OVRDAT[1:0] bits are synchronized to the local
PWM time base (next start of cycle)
Bits 7:6 – FLTDAT[1:0] Data for PWMxH/PWMxL Pins if FLT Event is Active
Description
If Fault is active, then FLTDAT[1] provides data for PWMxH.
If Fault is active, then FLTDAT[0] provides data for PWMxL.
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 28
Bits 5:4 – CLDAT[1:0] Data for PWMxH/PWMxL Pins if CLMT Event is Active
Description
If current limit is active, then CLDAT[1] provides data for PWMxH.
If current limit is active, then CLDAT[0] provides data for PWMxL.
Bits 3:2 – FFDAT[1:0] Data for PWMxH/PWMxL Pins if Feed-Forward Event is Active
Description
If feed-forward is active, then FFDAT[1] provides data for PWMxH.
If feed-forward is active, then FFDAT[0] provides data for PWMxL.
Bits 1:0 – DBDAT[1:0] Data for PWMxH/PWMxL Pins if Debug Mode is Active
Description
If Debug mode is active and PTFRZ = , then DBDAT[1] provides data for PWMxH.1
If Debug mode is active and PTFRZ = , then DBDAT[0] provides data for PWMxL.1
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 29
2.2.5 PWM Generator x I/O Control Register High
Name: PGxIOCONH
Bit 15 14 13 12 11 10 9 8
CAPSRC[2:0] DTCMPSEL
Access R/W R/W R/W R/W
Reset 0 0 0 0
Bit 7 6 5 4 3 2 1 0
PMOD[1:0] PENH PENL POLH POLL
Access R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0
Bits 14:12 – CAPSRC[2:0] Time Base Capture Source Selection
Note: A capture may be initiated in software at any time by writing a ‘ ’ to PGxCAP[0].1
Value Description
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 8 – DTCMPSEL Dead-Time Compensation Select
Value Description
1Dead-time compensation is controlled by PCI feed-forward limit logic
0Dead-time compensation is controlled by PCI Sync logic
Bits 5:4 – PMOD[1:0] PWM Generator Output Mode Selection
Value Description
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
Value Description
1PWM Generator controls the PWMxH output pin
0PWM Generator does not control the PWMxH output pin
Bit 2 – PENL PWMxL Output Port Enable
Value Description
1PWM Generator controls the PWMxL output pin
0PWM Generator does not control the PWMxL output pin
Bit 1 – POLH PWMxH Output Polarity
Value Description
1Output pin is active-low
0Output pin is active-high
Bit 0 – POLL PWMxL Output Polarity
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 30
Value Description
1Output pin is active-low
0Output pin is active-high
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 31
2.2.7 PWM Generator x Event Register High
Name: PGxEVTH
Bit 15 14 13 12 11 10 9 8
FLTIEN CLIEN FFIEN SIEN IEVTSEL[1:0]
Access R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
ADTR2EN3 ADTR2EN2 ADTR2EN1 ADTR1OFS[4:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 15 – FLTIEN PCI Fault Interrupt Enable
Note: An interrupt is only generated on the rising edge of the PCI Fault active signal.
Value Description
1Fault interrupt is enabled
0Fault interrupt is disabled
Bit 14 – CLIEN PCI Current Limit Interrupt Enable
Note: An interrupt is only generated on the rising edge of the PCI current limit active signal.
Value Description
1Current limit interrupt is enabled
0Current limit interrupt is disabled
Bit 13 – FFIEN PCI Feed-Forward Interrupt Enable
Note: An interrupt is only generated on the rising edge of the PCI feed-forward active signal.
Value Description
1Feed-forward interrupt is enabled
0Feed-forward interrupt is disabled
Bit 12 – SIEN PCI Sync Interrupt Enable
Note: An interrupt is only generated on the rising edge of the PCI Sync active signal.
Value Description
1Sync interrupt is enabled
0Sync interrupt is disabled
Bits 9:8 – IEVTSEL[1:0] Interrupt Event Selection
Value Description
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
Value Description
1PGxTRIGC register compare event is enabled as trigger source for ADC Trigger 2
0PGxTRIGC register compare event is disabled as trigger source for ADC Trigger 2
Bit 6 – ADTR2EN2 ADC Trigger 2 Source is PGxTRIGB Compare Event Enable
Value Description
1PGxTRIGB register compare event is enabled as trigger source for ADC Trigger 2
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 33
Value Description
0PGxTRIGB register compare event is disabled as trigger source for ADC Trigger 2
Bit 5 – ADTR2EN1 ADC Trigger 2 Source is PGxTRIGA Compare Event Enable
Value Description
1PGxTRIGA register compare event is enabled as trigger source for ADC Trigger 2
0PGxTRIGA register compare event is disabled as trigger source for ADC Trigger 2
Bits 4:0 – ADTR1OFS[4:0] ADC Trigger 1 Offset Selection
Value Description
11111 Offset by 31 trigger events
. . . . . .
00010 Offset by 2 trigger events
00001 Offset by 1 trigger event
00000 No offset
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 34
2.2.8 PWM Generator xy PCI Register Low (x = PWM Generator #; y = F, CL, FF or S)
Name: PGxyPCIL
Bit 15 14 13 12 11 10 9 8
TSYNCDIS TERM[2:0] AQPS AQSS[2:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
SWTERM PSYNC PPS PSS[4:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 15 – TSYNCDIS Termination Synchronization Disable
Value Description
1Termination of latched PCI occurs immediately
0Termination of latched PCI occurs at PWM EOC
Bits 14:12 – TERM[2:0] Termination Event Selection
Notes:
1. PCI sources are device-dependent; refer to the device data sheet for availability.
2. Do not use this selection when the ACP[2:0] bits (PGxyPCIH[10:8]) are set for latched on any edge.
Value Description
111 Selects PCI Source #9 (1)
110 Selects PCI Source #8 (1)
101 Selects PCI Source #1 (PWM Generator output selected by the [2:0] bits)PWMPCI
100 PGxTRIGC trigger event
011 PGxTRIGB trigger event
010 PGxTRIGA trigger event
001 Auto-Terminate: Terminate when PCI source transitions from active to inactive (2)
000 Manual Terminate: Terminate on a write of ‘ ’ to the SWTERM bit location1
Bit 11 – AQPS Acceptance Qualifier Polarity Select
Value Description
1Inverted
0Not inverted
Bits 10:8 – AQSS[2:0] Acceptance Qualifier Source Selection
Value Description
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 [2:0] bits)PWMPCI
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
A write of ‘ ’ to this location will produce a termination event. This bit location always reads as ‘ ’.1 0
Bit 6 – PSYNC PCI Synchronization Control
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 35
2.2.9 PWM Generator xy PCI Register High (x = PWM Generator #; y = F, CL, FF or S)
Name: PGxyPCIH
Bit 15 14 13 12 11 10 9 8
BPEN BPSEL[2:0] ACP[2:0]
Access R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
SWPCI SWPCIM[1:0] LATMOD TQPS TQSS[2:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 15 – BPEN PCI Bypass Enable
Value Description
1PCI function is enabled and local PCI logic is bypassed; PWM Generator will be controlled by PCI
function in the PWM Generator selected by the [2:0] bitsBPSEL
0PCI function is not bypassed
Bits 14:12 – BPSEL[2:0] PCI Bypass Source Selection
Note: Selects ‘ ’ if the selected PWM Generator is not present.0
Value Description
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
Bits 10:8 – ACP[2:0] PCI Acceptance Criteria Selection
Note:
1. Don’t use this selection when the TERM[2:0] bits (PGxyPCIL[14:12]) are set to auto-termination.
Value Description
111 Reserved
110 Reserved
101 Latched any edge (1)
100 Latched rising edge
011 Latched
010 Any edge
001 Rising edge
000 Level-sensitive
Bit 7 – SWPCI Software PCI Control
Value Description
1Drives a ‘ ’ to PCI logic assigned to by the SWPCIM[1:0] control bits1
0Drives a ‘ ’ to PCI logic assigned to by the SWPCIM[1:0] control bits0
Bits 6:5 – SWPCIM[1:0] Software PCI Control Mode
Value Description
11 Reserved
10 SWPCI bit is assigned to termination qualifier logic
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 37
Value Description
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
Value Description
1SR latch is Reset-dominant in Latched Acceptance modes
0SR latch is set-dominant in Latched Acceptance modes
Bit 3 – TQPS Termination Qualifier Polarity Select
Value Description
1Inverted
0Not inverted
Bits 2:0 – TQSS[2:0] Termination Qualifier Source Selection
Note:
1. Polarity control bit, TQPS, has no effect on these selections.
Value Description
111 SWPCI control bit only (qualifier forced to ‘ ’)1 (1)
110 Selects PCI Source #9
101 Selects PCI Source #8
100 Selects PCI Source #1 (PWM Generator output selected by the [2:0] bits)PWMPCI
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 (1)
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 38
2.2.10 PWM Generator x Leading-Edge Blanking Register Low
Name: PGxLEBL
Bit 15 14 13 12 11 10 9 8
LEB[18:11]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
LEB[10:6] [2:0]
Access R/W R/W R/W R/W R/W R R R
Reset 0 0 0 0 0 0 0 0
Bits 15:3 – LEB[15:3] Leading-Edge Blanking Period
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
Bits 2:0 – [2:0] Read-Only
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 39
2.2.11 PWM Generator x Leading-Edge Blanking Register High
Name: PGxLEBH
Bit 15 14 13 12 11 10 9 8
PWMPCI[2:0]
Access R/W R/W R/W
Reset 0 0 0
Bit 7 6 5 4 3 2 1 0
PHR PHF PLR PLF
Access R/W R/W R/W R/W
Reset 0 0 0 0
Bits 10:8 – PWMPCI[2:0] PWM Source for PCI Selection
Note: 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 the PGxyPCIL and
PGxyPCIH registers for more information).
Value Description
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 3 – PHR PWMxH Rising Edge Trigger Enable
Value Description
1Rising edge of PWMxH will trigger the LEB duration counter
0LEB ignores the rising edge of PWMxH
Bit 2 – PHF PWMxH Falling Edge Trigger Enable
Value Description
1Falling edge of PWMxH will trigger the LEB duration counter
0LEB ignores the falling edge of PWMxH
Bit 1 – PLR PWMxL Rising Edge Trigger Enable
Value Description
1Rising edge of PWMxL will trigger the LEB duration counter
0LEB ignores the rising edge of PWMxL
Bit 0 – PLF PWMxL Falling Edge Trigger Enable
Value Description
1Falling edge of PWMxL will trigger the LEB duration counter
0LEB ignores the falling edge of PWMxL
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 40
2.2.13 PWM Generator x Duty Cycle Register
Name: PGxDC
Bit 15 14 13 12 11 10 9 8
PGxDC[15:8]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
PGxDC[7:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bits 15:0 – PGxDC[15:0] PWM Generator x Duty Cycle Register
Note: Duty cycle values less than 0x0008 should not be used (0x0020 in High-Resolution mode).
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 42
2.2.16 PWM Generator x Trigger A Register
Name: PGxTRIGA
Bit 15 14 13 12 11 10 9 8
PGxTRIGA[15:8]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
PGxTRIGA[7:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bits 15:0 – PGxTRIGA[15:0] PWM Generator x Trigger A Register
In High-Resolution mode, bits[2:0] are forced to ‘ ’.0
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 45
2.2.17 PWM Generator x Trigger B Register
Name: PGxTRIGB
Bit 15 14 13 12 11 10 9 8
PGxTRIGB[15:8]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
PGxTRIGB[7:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bits 15:0 – PGxTRIGB[15:0] PWM Generator x Trigger B Register
In High-Resolution mode, bits[2:0] are forced to ‘ ’.0
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 46
2.2.19 PWM Generator x Dead-Time Register Low
Name: PGxDTL
Bit 15 14 13 12 11 10 9 8
DTL[13:8]
Access R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
DTL[7:0]
Access R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0 0
Bits 13:0 – DTL[13:0] PWMxL Dead-Time Delay
Note: The DTL[13:11] bits are not available when HREN (PGxCONL[7]) = .0
HRPWM with Fine Edge Placement
Register Maps
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 48
3. Architecture Overview
The PWM module consists of a common set of controls and features, and multiple instantiations of PWM Generators
(PGx). Each PWM Generator can be independently 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 3-1
Figure 3-1. PWM High-Level Block Diagram
PG1
PG2
PG8
PWM1H
PWM1L
PWM2H
PWM2L
PWM8H
PWM8L
Clock
Control
Master Data
Registers
Combinatorial
Logic
Outputs
Combinatorial
Triggers
Linear
Feedback PWM Event
Outputs
Shift Register
Common PWM Features
CLKs
Data
Bus
Triggers
Interrupts
Each PWM Generator behaves as a separate peripheral that can be independently enabled from the other PWM
Generators. Each PWM Generator consists of a signal generator and an Output Control block.
The PWM Generators use ‘events’ to trigger other PWM Generators, ADC conversions and external operations. Each
PWM Generator accepts a trigger input and produces a trigger output. The trigger input signals the PWM Generator
when to start a new PWM period. The trigger output is generated when the trigger time value is equal to the PWM
Generator timer value.
Output Control blocks provide the capability to alter the base PWM signal sent to the output pins and incorporate
several functions, including:
• Output mode selection (Complementary, Push-Pull, Independent)
• Dead-time generator
• PWM Control Input (PCI) block
• Leading-Edge Blanking (LEB)
• Override
Each PWM Generator Output block is associated with the control of two PWM output pins. Output blocks contain a
PWM Control Input (PCI) that can be used for many purposes, including Fault detection, external triggering and
interfacing with other peripherals. The LEB block works in conjunction with the PCI block and allows PCI inputs to be
ignored during certain periods of the PWM cycle. The Override block determines the PWM output pin states during
various types of events, including Faults, current limit and feed-forward control. A block diagram of a single PWM
Generator is shown in .Figure 3-2
HRPWM with Fine Edge Placement
Architecture Overview
© 2017-2020 Microchip Technology Inc. Functional Reference Manuals (FRM) DS70005320D-page 51


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Model: dsPIC33CK64MP205

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