Texas Instruments TMS320C6745 DSP - 14.2.10 High-Resolution PWM (HRPWM) Submodule; HRPWM System Interface

CTR = PRD
TBPRD shadow (16)
TBPRD active (16)
Counter
up/down
(16 bit)
TBCNT
active (16)
TBCTL[CNTLDE]
TBCTL[SWFSYNC]
(software forced sync)
EPWMxSYNCI
CTR = 0
CTR_Dir
CTR = CMPB
Disabled
Sync
in/out
select
Mux
TBCTL[SYNCOSEL]
EPWMxSYNCO
TBPHS active (24)
16
8
TBPHSHR (8)
Phase
control
Time−base (TB)
CTR = CMPA
CMPA active (24)
16
CMPA shadow (24)
Action
qualifier
(AQ)
8
16
Counter compare (CC)
CMPB active (16)
CTR = CMPB
CMPB shadow (16)
CMPAHR (8)
EPWMA
EPWMB
Dead
band
(DB) (PC)
chopper
PWM
zone
(TZ)
Trip
CTR = 0
EPWMxA
EPWMxB
EPWMxTZINT
TZ1 to TZn
HiRes PWM (HRPWM)
CTR = PRD
CTR = 0
CTR = CMPB
CTR = CMPA
CTR_Dir
Event
trigger
and
interrupt
(ET)
EPWMxINT
CTR = 0
Architecture www.ti.com
340
SPRUH91D–March 2013–Revised September 2016
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Enhanced High-Resolution Pulse-Width Modulator (eHRPWM)
14.2.10 High-Resolution PWM (HRPWM) Submodule
Figure 14-43 shows the high-resolution PWM (HRPWM) submodule in the ePWM system. Some devices
include the high-resolution PWM submodule, see your device-specific data manual to determine which
ePWM instances include this feature.
Figure 14-43. HRPWM System Interface