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34.4.5.4 Trip-Zone Control Register (TZCTL)
Figure 34-81. Trip-Zone Control Register (TZCTL) [offset = 28h]
15 12 11 10 9 8
Reserved DCBEVT2 DCBEVT1
R-0 R/W-0 R/W-0
7 6 5 4 3 2 1 0
DCAEVT2 DCAEVT1 TZB TZA
R/W-0 R/W-0 R/W-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 34-41. Trip-Zone Control Register (TZCTL) Field Descriptions
Bit Field Value Description
15-12 Reserved 0 Reserved
11-10 DCBEVT2 Digital Compare Output B Event 2 Action On EPWMxB:
0 High-impedance (EPWMxB = High-impedance state)
1h Force EPWMxB to a high state.
2h Force EPWMxB to a low state.
3h Do Nothing, trip action is disabled
9-8 DCBEVT1 Digital Compare Output B Event 1 Action On EPWMxB:
0 High-impedance (EPWMxB = High-impedance state)
1h Force EPWMxB to a high state.
2h Force EPWMxB to a low state.
3h Do Nothing, trip action is disabled
7-6 DCAEVT2 Digital Compare Output A Event 2 Action On EPWMxA:
0 High-impedance (EPWMxA = High-impedance state)
1h Force EPWMxA to a high state.
2h Force EPWMxA to a low state.
3h Do Nothing, trip action is disabled
5-4 DCAEVT1 Digital Compare Output A Event 1 Action On EPWMxA:
0 High-impedance (EPWMxA = High-impedance state)
1h Force EPWMxA to a high state.
2h Force EPWMxA to a low state.
3h Do Nothing, trip action is disabled
3-2 TZB When a trip event occurs the following action is taken on output EPWMxB. Which trip-zone pins can
cause an event is defined in the TZSEL register.
0 High-impedance (EPWMxB = High-impedance state)
1h Force EPWMxB to a high state
2h Force EPWMxB to a low state
3h Do nothing, no action is taken on EPWMxB.
1-0 TZA When a trip event occurs the following action is taken on output EPWMxA. Which trip-zone pins can
cause an event is defined in the TZSEL register.
0 High-impedance (EPWMxA = High-impedance state)
1h Force EPWMxA to a high state
2h Force EPWMxA to a low state
3h Do nothing, no action is taken on EPWMxA.
1806
Enhanced Pulse Width Modulator (ePWM) Module SPNU562–May 2014
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