TMS320C6748_2 Datasheet, PDF (229/254 Pages) Texas Instruments – Fixed/Floating-Point DSP

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Time−base (TB)
TBPRD shadow (16)
TBPRD active (16)
CTR=PRD
TBCTL[CNTLDE]
Counter
up/down
(16 bit)
TBCNT
active (16)
CTR=ZERO
CTR_Dir
16
TBPHSHR (8)
8
TBPHS active (24)
Phase
control
Counter compare (CC)
CTR=CMPA
CMPAHR (8)
16
8
CMPA active (24)
CMPA shadow (24)
Action
qualifier
(AQ)
EPWMA
TMS320C6748 Fixed/Floating-Point DSP
SPRS590A – JUNE 2009 – REVISED AUGUST 2009
CTR=ZERO
CTR=CMPB
Disabled
Sync
in/out
select
Mux
TBCTL[SYNCOSEL]
TBCTL[SWFSYNC]
(software forced sync)
EPWMSYNCO
EPWMSYNCI
CTR = PRD
CTR = ZERO
CTR = CMPA
CTR = CMPB
CTR_Dir
Event
trigger
and
interrupt
(ET)
EPWMxINT
HiRes PWM (HRPWM)
EPWMxA
CTR=CMPB
16
CMPB active (16)
CMPB shadow (16)
EPWMB
Dead
band
(DB)
PWM
chopper
(PC)
CTR = ZERO
Trip
zone
(TZ)
EPWMxB
EPWMxTZINT
TZ
Figure 6-79. eHRPWM Sub-Modules Showing Critical Internal Signal Interconnections
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Peripheral Information and Electrical Specifications 229