Enhanced PWM (ePWM) Module
15.2.4.6.3 Event-Trigger Flag Register (ETFLG)
The event-trigger flag register (ETFLG) is shown in
and described in
Figure 15-93. Event-Trigger Flag Register (ETFLG)
15
1
0
Reserved
INT
R-0
R-0
LEGEND: R = Read only; -n = value after reset
Table 15-88. Event-Trigger Flag Register (ETFLG) Field Descriptions
Bits
Name
Value
Description
15-1
Reserved
0
Reserved
0
INT
Latched ePWM Interrupt (EPWMx_INT) Status Flag
0
Indicates no event occurred
1
Indicates that an ePWMx interrupt (EWPMx_INT) was generated. No further interrupts will be generated
until the flag bit is cleared. Up to one interrupt can be pending while the ETFLG[INT] bit is still set. If an
interrupt is pending, it will not be generated until after the ETFLG[INT] bit is cleared. Refer to
15.2.4.6.4 Event-Trigger Clear Register (ETCLR)
The event-trigger clear register (ETCLR) is shown in
and described in
Figure 15-94. Event-Trigger Clear Register (ETCLR)
15
1
0
Reserved
INT
R-0
R-0
LEGEND: R = Read only; -n = value after reset
Table 15-89. Event-Trigger Clear Register (ETCLR) Field Descriptions
Bits
Name
Value
Description
15-1
Reserved
0
Reserved
0
INT
ePWM Interrupt (EPWMx_INT) Flag Clear Bit
0
Writing a 0 has no effect. Always reads back a 0.
1
Clears the ETFLG[INT] flag bit and enable further interrupts pulses to be generated. Note that interrupts
can also used as DMA events, and this will also enable further DMA events to be generated.
1602
Pulse-Width Modulation Subsystem (PWMSS)
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated