Texas Instruments C2000

ePWM
C2000 Microcontroller Workshop - Control Peripherals 7 - 11
ePWM Compare Sub-Module
ePWM Compare Sub-Module
16-Bit
Time-Base
Counter
Compare
Logic
Action
Qualifier
Dead
Band
PWM
Chopper
Trip
Zone
Shadowed
Compare
Register
Shadowed
Period
Register
Clock
Prescaler
Shadowed
Compare
Register
EPWMxA
EPWMxB
SYSCLKOUT
TZy
EPWMxSYNCI EPWMxSYNCO
TBCLK
Digital
Compare
TZ1-TZ3
COMPxOUT
The compare sub-module uses two compare registers to detect time-base count matches. These
compare match events are fed into the action qualifier sub-module. Notice that the output of this
block feeds two signals into the action qualifier.
ePWM Compare Event Waveforms
TBCTR
TBCTR
TBCTR
TBPRD
TBPRD
TBPRD
Count Up Mode
Count Down Mode
Count Up and Down Mode
Asymmetrical
Waveform
Asymmetrical
Waveform
Symmetrical
Waveform
CMPA
CMPA
CMPA
CMPB
CMPB
CMPB
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= compare events are fed to the Action Qualifier Sub-Module
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