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Introduction

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35.1.2 Register Mapping

The complete ePWM module control and status register set is grouped by submodule as shown in

Table 35-1. Each register set is duplicated for each instance of the ePWM module.

Table 35-1. ePWM Module Control and Status Register Set Grouped by Submodule

Privileged

Address Size Mode Write

Name Offset

(1)

(x16) Shadow Only? Description

Time-Base Submodule Registers

TBSTS 00h 1 No No Time-Base Status Register

TBCTL 02h 1 No No Time-Base Control Register

TBPHS 04h 1 No No Time-Base Phase Register

TBPRD 08h 1 Yes No Time-Base Period Register

TBCTR 0Ah 1 No No Time-Base Counter Register

Counter-Compare Submodule Registers

CMPCTL 0Ch 1 No No Counter-Compare Control Register

CMPA 10h 1 Yes No Counter-Compare A Register

CMPB 16h 1 Yes No Counter-Compare B Register

Action-Qualifier Submodule Registers

AQCTLA 14h 1 No No Action-Qualifier Control Register for Output A (EPWMxA)

AQSFRC 18h 1 No No Action-Qualifier Software Force Register

AQCTLB 1Ah 1 No No Action-Qualifier Control Register for Output B (EPWMxB)

AQCSFRC 1Eh 1 Yes No Action-Qualifier Continuous S/W Force Register Set

Dead-Band Generator Submodule Registers

DBCTL 1Ch 1 No No Dead-Band Generator Control Register

DBFED 20h 1 No No Dead-Band Generator Falling Edge Delay Count Register

DBRED 22h 1 No No Dead-Band Generator Rising Edge Delay Count Register

Trip-Zone Submodule Registers

TZDCSEL 24h 1 No Yes Trip Zone Digital Compare Select Register

TZSEL 26h 1 No Yes Trip-Zone Select Register

TZEINT 28h 1 No Yes Trip-Zone Enable Interrupt Register

TZCTL 2Ah 1 No Yes Trip-Zone Control Register

TZCLR 2Ch 1 No Yes Trip-Zone Clear Register

TZFLG 2Eh 1 No No Trip-Zone Flag Register

TZFRC 32h 1 No Yes Trip-Zone Force Register

Event-Trigger Submodule Registers

ETSEL 30h 1 No No Event-Trigger Selection Register

ETFLG 34h 1 No No Event-Trigger Flag Register

ETPS 36h 1 No No Event-Trigger Pre-Scale Register

ETFRC 38h 1 No No Event-Trigger Force Register

ETCLR 3Ah 1 No No Event-Trigger Clear Register

PWM-Chopper Submodule Registers

PCCTL 3Eh 1 No No PWM-Chopper Control Register

Digital Compare Event Registers

DCACTL 60h 1 No Yes Digital Compare A Control Register

DCTRIPSEL 62h 1 No Yes Digital Compare Trip Select Register

DCFCTL 64h 1 No Yes Digital Compare Filter Control Register

DCBCTL 66h 1 No Yes Digital Compare B Control Register

DCFOFFSET 68h 1 Writes No Digital Compare Filter Offset Register

DCCAPCTL 6Ah 1 No Yes Digital Compare Capture Control Register

(1)

Locations not shown are reserved.

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Enhanced Pulse Width Modulator (ePWM) Module SPNU563–May 2014

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