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2.7.4 Generating Trip Event Interrupts
Latch
cyc−by-cyc
mode
(CBC)
CTR=zero
TZFRC[CBC]
TZ1
TZ2
TZ3
TZ4
TZ5
TZ6
Sync
Clear
Set
Set
one-shot
Latch
(OSHT)
mode
Clear
TZSEL[CBC1 to CBC6]
TZCLR[OST]
TZSEL[OSHT1 to OSHT6]
TZFRC[OSHT]
Sync
TZ6
TZ5
TZ4
TZ3
TZ2
TZ1
Trip
logic
Trip
Trip
CBC
trip event
OSHT
trip event
EPWMxA
EPWMxB
EPWMxA
EPWMxB
TZCTL[TZB]
TZCTL[TZA]
Async Trip
Set
Clear
TZFLG[CBC]
TZCLR[CBC]
Set
Clear
TZFLG[OST]
Trip-Zone (TZ) Submodule
and
illustrate the trip-zone submodule control and interrupt logic, respectively.
Figure 2-36. Trip-Zone Submodule Mode Control Logic
62
ePWM Submodules
SPRU791D – November 2004 – Revised October 2007