TMS320F28027, TMS320F28027-Q1, TMS320F28027F, TMS320F28027F-Q1, TMS320F28026
TMS320F28026-Q1, TMS320F28026F, TMS320F28026F-Q1, TMS320F28023
TMS320F28023-Q1, TMS320F28022, TMS320F28021, TMS320F28020, TMS320F280200
ZHCSA13P –NOVEMBER 2008 –REVISED FEBRUARY 2021
www.ti.com.cn
Time-Base (TB)
CTR=ZERO
Sync
In/Out
TBPRD Shadow (24)
TBPRD Active (24)
EPWMxSYNCO
CTR=CMPB
Disabled
Select
Mux
TBPRDHR (8)
8
CTR=PRD
TBCTL[SYNCOSEL]
TBCTL[PHSEN]
EPWMxSYNCI
DCAEVT1.sync
DCBEVT1.sync
Counter
Up/Down
(16 Bit)
TBCTL[SWFSYNC]
(Software Forced
Sync)
CTR=ZERO
CTR_Dir
TCBNT
Active (16)
CTR=PRD
CTR=ZERO
TBPHSHR (8)
EPWMxINT
CTR=PRD or ZERO
CTR=CMPA
Event
Trigger
and
Interrupt
(ET)
16
8
EPWMxSOCA
Phase
Control
CTR=CMPB
CTR_Dir
(A)
DCAEVT1.soc
(A)
TBPHS Active (24)
EPWMxSOCB
EPWMxSOCA
ADC
DCBEVT1.soc
EPWMxSOCB
Action
Qualifier
(AQ)
CTR=CMPA
CMPAHR (8)
16
High-resolution PWM (HRPWM)
CMPA Active (24)
CMPA Shadow (24)
EPWMxA
EPWMA
PWM
Chopper
(PC)
Trip
Zone
(TZ)
Dead
Band
(DB)
CTR=CMPB
16
CMPB Active (16)
EPWMB
EPWMxB
EPWMxTZINT
TZ1 to TZ3
CMPB Shadow (16)
EMUSTOP
CTR=ZERO
CLOCKFAIL
DCAEVT1.inter
DCBEVT1.inter
(A)
(A)
(A)
(A)
DCAEVT1.force
DCAEVT2.force
DCBEVT1.force
DCBEVT2.force
DCAEVT2.inter
DCBEVT2.inter
A. These events are generated by the Type 1 ePWM digital compare (DC) submodule based on the levels of the COMPxOUT and TZ
signals.
图9-36. ePWM Submodules Showing Critical Internal Signal Interconnections
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