Time-Base Up-Down Count Waveforms, Tbctl[Phsdir = 1] Count Up On Synchronization Event; Counter-Compare Submodule - Texas Instruments Concerto F28M35 Series Technical Reference Manual

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Figure 7-11. Time-Base Up-Down Count Waveforms, TBCTL[PHSDIR = 1] Count Up On Synchronization
TBCTR[15:0]
0xFFFF
TBPRD (value)
TBPHS (value)
0x0000
EPWMxSYNCI
CTR_dir
CTR = zero
CTR = PRD
CNT_max
7.2.3 Counter-Compare (CC) Submodule
Figure 7-12 illustrates the counter-compare submodule within the ePWM.
EPWMxSYNCI
EPWMxSYNCO
Time-Base
(TB)
Digital Compare
Signals
Counter
Compare
(CC)
Figure 7-13 shows the basic structure of the counter-compare submodule.
SPRUH22I – April 2012 – Revised November 2019
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UP
DOWN
Figure 7-12. Counter-Compare Submodule
Action
Counter Compare
Qualifier
(AQ)
CTR = PRD
Digital Compare
CTR = 0
CTR_Dir
ePWMxA
ePWMxB
Dead
Band
CTR = CMPA
(DB)
CTR = CMPB
CTR = CMPC
CTR = CMPD
PIE
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Event
UP
UP
DOWN
Time Base
EPWMxINT
Signals Event
Trigger
EPWMxSOCA
and
Signals
Interrupt
(ET)
Signals
EPWMxSOCB
ePWMxA
ePWMxB
PWM-
chopper
(PC)
Trip
TZ1 to TZ3
Zone
(TZ)
EMUSTOP
CTR = PRD
CLOCKFAIL
CTR = 0
EQEPxERR
EPWMxTZINT
Digital
Compare
Digital Compare
(DC)
Signals
C28 Enhanced Pulse Width Modulator (ePWM) Module
ePWM Submodules
DOWN
PIE
ADC
GPIO GPIO
MUX MUX
GPTRIP
CPU
SYSCTRL
EQEPx
TZ1 to TZ3
ECCDBLERR
28x RAM/
Flash ECC
PIEERR
COMPxOUT
GPTRIP
653