Detailed View Of The Counter-Compare Submodule; Counter-Compare Submodule Key Signals - Texas Instruments Concerto F28M36 Series Technical Reference Manual

ePWM Submodules
Figure 7-13. Detailed View of the Counter-Compare Submodule
(A)
DCAEVT1.sync
(A)
DCBEVT1.sync
EPWMxSYNCI
TBCTL[SWFSYNC]
CMPCTL
[LOADAMODE]
CTR = PRD
CTR = Zero
(A)
DCAEVT1.sync
(A)
DCBEVT1.sync
EPWMxSYNCI
TBCTL[SWFSYNC]
CMPCTL
[LOADBMODE]
CTR = PRD
CTR = Zero
(A)
DCAEVT1.sync
(A)
DCBEVT1.sync
EPWMxSYNCI
TBCTL[SWFSYNC]
CMPCTL2
[LOADCMODE]
CTR = PRD
CTR = Zero
(A)
DCAEVT1.sync
(A)
DCBEVT1.sync
EPWMxSYNCI
TBCTL[SWFSYNC]
CMPCTL2
[LOADDMODE]
CTR = PRD
CTR = Zero
A These events are generated by the type 2 ePWM digital compare (DC) submodule based on the levels of the TRIPIN
inputs [For Example: COMPxOUT and TZ signals].
The key signals associated with the counter-compare submodule are described in
Signal Description of Event
CTR = CMPA Time-base counter equal to the active counter-compare A value
CTR = CMPB Time-base counter equal to the active counter-compare B value
CTR = CMPC Time-base counter equal to the active counter-compare C value
CTR = CMPD Time-base counter equal to the active counter-compare D value
692
C28 Enhanced Pulse Width Modulator (ePWM) Module
Time
Base
(TB)
Module
CMPCTL
[LOADASYNC]
Shadow load
0
CMPCTL
[LOADBSYNC]
Shadow load
0
CMPCTL2
[LOADCSYNC]
Shadow load
0
CMPCTL2
[LOADDSYNC]
Shadow load
0
Table 7-7. Counter-Compare Submodule Key Signals
Copyright © 2012–2019, Texas Instruments Incorporated
TBCTR[15:0]
16
16
CMPA[15:0]
Counter
Compare A
CMPCTL
[SHDWAFULL]
CMPA
Compare A Active Reg.
CMPCTL
CMPA
[SHDWAMODE]
Compare A Shadow Reg.
16
TBCTR[15:0]
16
CMPB[15:0]
Counter
Compare B
CMPCTL
CMPB [SHDWBFULL]
Compare B Active Reg.
CMPCTL
[SHDWBMODE]
CMPB
Compare B Shadow Reg.
16
TBCTR[15:0]
16
CMPC[15:0]
Counter
Compare C
CMPCTL2
CMPC
[SHDWCMODE]
Compare C Active Reg.
CMPC
Compare C Shadow Reg.
16
TBCTR[15:0]
16
CMPD[15:0] Counter
Compare D
CMPCTL2
CMPD
[SHDWDMODE]
Compare D Active Reg.
CMPD
Compare D Shadow Reg.
Registers Compared
TBCTR = CMPA
TBCTR = CMPB
TBCTR = CMPC
TBCTR = CMPD
SPRUHE8E – October 2012 – Revised November 2019
www.ti.com
CTR = CMPA
Action
Qualifier
(AQ)
Module
CTR = CMPB
CTR = CMPC
SOCA
Event
SOCB
Trigger
and
Interrupt
(ET)
EPWMxINT
CTR = CMPD
Table 7-7.
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