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AM1808
SPRS653E – FEBRUARY 2010 – REVISED MARCH 2014
Time−base (TB)
TBPRD shadow (16)
TBPRD active (16)
Counter
up/down
(16 bit)
TBCNT
active (16)
16
TBPHS active (24)
Counter compare (CC)
16
8
CMPA active (24)
CMPA shadow (24)
16
CMPB active (16)
CMPB shadow (16)
Figure 6-78. eHRPWM Sub-Modules Showing Critical Internal Signal Interconnections
6.29.1 eHRPWM Register Descriptions
Table 6-125
shows the eHRPWM registers.
232
Peripheral Information and Electrical Specifications
CTR=PRD
TBCTL[CNTLDE]
CTR=ZERO
CTR_Dir
TBPHSHR (8)
8
Phase
control
Action
qualifier
CTR=CMPA
(AQ)
CMPAHR (8)
EPWMA
CTR=CMPB
EPWMB
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Sync
CTR=ZERO
in/out
select
CTR=CMPB
Mux
Disabled
TBCTL[SYNCOSEL]
TBCTL[SWFSYNC]
(software forced sync)
CTR = PRD
Event
CTR = ZERO
trigger
CTR = CMPA
and
interrupt
CTR = CMPB
(ET)
CTR_Dir
HiRes PWM (HRPWM)
Dead
PWM
Trip
band
chopper
zone
(DB)
(PC)
(TZ)
CTR = ZERO
Copyright © 2010–2014, Texas Instruments Incorporated
AM1808
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EPWMSYNCO
EPWMSYNCI
EPWMxINT
EPWMxA
EPWMxB
EPWMxTZINT
TZ
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