TMS320F28335, TMS320F28334, TMS320F28332
TMS320F28235, TMS320F28234, TMS320F28232
SPRS439I–JUNE 2007–REVISED MARCH 2011
www.ti.com
Time−base (TB)
Sync
in/out
select
Mux
CTR=ZERO
CTR=CMPB
Disabled
TBPRD shadow (16)
TBPRD active (16)
EPWMxSYNCO
EPWMxSYNCI
CTR=PRD
TBCTL[SYNCOSEL]
TBCTL[PHSEN]
Counter
up/down
(16 bit)
TBCTL[SWFSYNC]
(software forced sync)
CTR=ZERO
CTR_Dir
TBCTR
active (16)
TBPHSHR (8)
16
8
CTR = PRD
CTR = ZERO
Phase
control
Event
trigger
and
interrupt
(ET)
EPWMxINT
TBPHS active (24)
CTR = CMPA
CTR = CMPB
CTR_Dir
EPWMxSOCA
EPWMxSOCB
Counter compare (CC)
CTR=CMPA
CMPAHR (8)
Action
qualifier
(AQ)
16
8
HiRes PWM (HRPWM)
CMPA active (24)
EPWMA
EPWMB
EPWMxAO
CMPA shadow (24)
CTR=CMPB
Dead
band
(DB)
PWM
chopper
(PC)
Trip
zone
(TZ)
16
EPWMxBO
EPWMxTZINT
TZ1 to TZ6
CMPB active (16)
CMPB shadow (16)
CTR = ZERO
Figure 4-5. ePWM Submodules Showing Critical Internal Signal Interconnections
72
Peripherals
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TMS320F28232
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