Texas Instruments C2000

ePWM
7 - 16 C2000 Microcontroller Workshop - Control Peripherals
compare A and B up-count matches and clearing low on the compare A and B down-down
matches.
ePWM Count Up-Down Symmetric
Waveform
with Independent Modulation on EPWMA
CA
↑
CB
↓
CA
↑
CB
↓
Z
↓
P
↑
Z
↓
P
↑
EPWMA
EPWMB
TBCTR
TBPRD
.
.
. .
.
.
CMPB
CMPA
.
.
.
And finally, again using different output actions on the up-count and down-count, we have the
EPWMA output set high on the compare A up-count match and clear low on the compare B
down-count match. The EPWMB output will clear low on zero match and set high on period
match.