Enhanced PWM (ePWM) Module
15.2.2.3.1 Purpose of the Time-Base Submodule
You can configure the time-base submodule for the following:
•
Specify the ePWM time-base counter (TBCNT) frequency or period to control how often events occur.
•
Manage time-base synchronization with other ePWM modules.
•
Maintain a phase relationship with other ePWM modules.
•
Set the time-base counter to count-up, count-down, or count-up-and-down mode.
•
Generate the following events:
–
CTR = PRD: Time-base counter equal to the specified period (TBCNT = TBPRD) .
–
CTR = 0: Time-base counter equal to zero (TBCNT = 0000h).
•
Configure the rate of the time-base clock; a prescaled version of the CPU system clock
(SYSCLKOUT). This allows the time-base counter to increment/decrement at a slower rate.
1502
Pulse-Width Modulation Subsystem (PWMSS)
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated