Enhanced PWM (ePWM) Module
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15.2.4.3.3 Action-Qualifier Software Force Register (AQSFRC)
The action-qualifier software force register (AQSFRC) is shown in Figure 15-80 and described in
Table 15-72.
Figure 15-80. Action-Qualifier Software Force Register (AQSFRC)
15 8 7 6 5 4 3 2 1 0
Reserved RLDCSF OTSFB ACTSFB OTSFA ACTSFA
R-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 15-72. Action-Qualifier Software Force Register (AQSFRC) Field Descriptions
Bit Field Value Description
15-8 Reserved 0 Reserved
7-6 RLDCSF 0-3h AQCSFRC Active Register Reload From Shadow Options
0 Load on event counter equals zero
1h Load on event counter equals period
2h Load on event counter equals zero or counter equals period
3h Load immediately (the active register is directly accessed by the CPU and is not loaded from the
shadow register).
5 OTSFB One-Time Software Forced Event on Output B
0 Writing a 0 (zero) has no effect. Always reads back a 0
This bit is auto cleared once a write to this register is complete, that is, a forced event is initiated.)
This is a one-shot forced event. It can be overridden by another subsequent event on output B.
1 Initiates a single s/w forced event
4-3 ACTSFB 0-3h Action when One-Time Software Force B Is invoked
0 Does nothing (action disabled)
1h Clear (low)
2h Set (high)
3h Toggle (Low -> High, High -> Low)
Note: This action is not qualified by counter direction (CNT_dir)
2 OTSFA One-Time Software Forced Event on Output A
0 Writing a 0 (zero) has no effect. Always reads back a 0.
This bit is auto cleared once a write to this register is complete (that is, a forced event is initiated).
1 Initiates a single software forced event
1-0 ACTSFA 0-3h Action When One-Time Software Force A Is Invoked
0 Does nothing (action disabled)
1h Clear (low)
2h Set (high)
3h Toggle (Low → High, High → Low)
Note: This action is not qualified by counter direction (CNT_dir)
1592
Pulse-Width Modulation Subsystem (PWMSS) SPRUH73H–October 2011–Revised April 2013
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