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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

• PWM Event Outputs

HRPWM with Fine Edge Placement

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

Worldwide Sales and Service.....................................................................................................................131

HRPWM with Fine Edge Placement

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

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

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

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

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

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

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

Termékspecifikációk

Márka:	Microchip
Kategória:	nincs kategorizálva
Modell:	dsPIC33CK128MP205

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