Texas Instruments TMS320x28xx, 28xxx Offset Size Name, Description, Time-Base Submodule Registers

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Register Mapping

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

	Offset (1)	Size
Name		(x16)	Shadow	Description
				Time-Base Submodule Registers
TBCTL	0x0000	1	No	Time-Base Control Register
TBSTS	0x0001	1	No	Time-Base Status Register
TBPHSHR	0x0002	1	No	Extension for HRPWM Phase Register (2)
TBPHS	0x0003	1	No	Time-Base Phase Register
TBCTR	0x0004	1	No	Time-Base Counter Register
TBPRD	0x0005	1	Yes	Time-Base Period Register
				Counter-Compare Submodule Registers
CMPCTL	0x0007	1	No	Counter-Compare Control Register
CMPAHR	0x0008	1	No	Extension for HRPWM Counter-Compare A Register (2)
CMPA	0x0009	1	Yes	Counter-Compare A Register
CMPB	0x000A	1	Yes	Counter-Compare B Register
				Action-Qualifier Submodule Registers
AQCTLA	0x000B	1	No	Action-Qualifier Control Register for Output A (EPWMxA)
AQCTLB	0x000C	1	No	Action-Qualifier Control Register for Output B (EPWMxB)
AQSFRC	0x000D	1	No	Action-Qualifier Software Force Register
AQCSFRC	0x000E	1	Yes	Action-Qualifier Continuous S/W Force Register Set
				Dead-Band Generator Submodule Registers
DBCTL	0x000F	1	No	Dead-Band Generator Control Register
DBRED	0x0010	1	No	Dead-Band Generator Rising Edge Delay Count Register
DBFED	0x0011	1	No	Dead-Band Generator Falling Edge Delay Count Register
				Trip-Zone Submodule Registers
TZSEL	0x0012	1	No	Trip-Zone Select Register
TZCTL	0x0014	1	No	Trip-Zone Control Register (3)
TZEINT	0x0015	1	No	Trip-Zone Enable Interrupt Register (3)
TZFLG	0x0016	1	No	Trip-Zone Flag Register (3)
TZCLR	0x0017	1	No	Trip-Zone Clear Register (3)
TZFRC	0x0018	1	No	Trip-Zone Force Register (3)
				Event-Trigger Submodule Registers
ETSEL	0x0019	1	No	Event-Trigger Selection Register
ETPS	0x001A	1	No	Event-Trigger Pre-Scale Register
ETFLG	0x001B	1	No	Event-Trigger Flag Register
ETCLR	0x001C	1	No	Event-Trigger Clear Register
ETFRC	0x001D	1	No	Event-Trigger Force Register
				PWM-Chopper Submodule Registers
PCCTL	0x001E	1	No	PWM-Chopper Control Register
				High-Resolution Pulse Width Modulator (HRPWM) Extension Registers
HRCNFG	0x0020	1	No	HRPWM Configuration Register (2) (3)

(1)Locations not shown are reserved.

(2)These registers are only available on ePWM instances that include the high-resolution PWM extension. Otherwise these locations are reserved. These registers are described in the TMS320x28xx, 28xxx High-Resolution Pulse Width Modulator (HRPWM) Reference Guide (SPRU924). See the device specific data manual to determine which instances include the

HRPWM.

(3)EALLOW protected registers as described in the specific device version of the System Control and Interrupts Reference Guide listed in Section 1.

18 Introduction SPRU791D–November 2004–Revised October 2007

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