Specifications

Chapter 1
SPRU791F – November 2004 – Revised July 2009
Introduction
The enhanced pulse width modulator (ePWM) peripheral is a key element in controlling many of the power
electronic systems found in both commercial and industrial equipments. These systems include digital
motor control, switch mode power supply control, uninterruptible power supplies (UPS), and other forms of
power conversion. The ePWM peripheral performs a digital to analog (DAC) function, where the duty cycle
is equivalent to a DAC analog value; it is sometimes referred to as a Power DAC.
This reference guide is applicable for ePWM type 0. See the TMS320x28xx, 28xxx DSP Peripheral
Reference Guide (SPRU566 ) for a list of all devices with an ePWM module of the same type, to determine
the differences between the types, and for a list of device-specific differences within a type.
Topic .................................................................................................. Page
1.1 Introduction .............................................................................. 14
1.2 Submodule Overview................................................................. 14
1.3 Register Mapping ...................................................................... 17
SPRU791F – November 2004 – Revised July 2009 Introduction 13
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