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Trip-Zone Submodule Control and Status Registers
Table 4-17. Trip-Zone Submodule Select Register (TZSEL) Field Descriptions (continued)
Bits Name Value Description
1 CBC2 Trip-zone 2 ( TZ2) Select
0 Disable TZ2 as a CBC trip source for this ePWM module
1 Enable TZ2 as a CBC trip source for this ePWM module
0 CBC1 Trip-zone 1 ( TZ1) Select
0 Disable TZ1 as a CBC trip source for this ePWM module
1 Enable TZ1 as a CBC trip source for this ePWM module
Figure 4-18. Trip-Zone Control Register (TZCTL)
15 8
Reserved
R-0
7 4 3 2 1 0
Reserved TZB TZA
R-0 R/W-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 4-18. Trip-Zone Control Register (TZCTL) Field Descriptions
Bits Name Value Description
15–4 Reserved Reserved
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 (Table 4-17 ).
00 High impedance (EPWMxB = High-impedance state)
01 Force EPWMxB to a high state
10 Force EPWMxB to a low state
11 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 (Table 4-17 ).
00 High impedance (EPWMxA = High-impedance state)
01 Force EPWMxA to a high state
10 Force EPWMxA to a low state
11 Do nothing, no action is taken on EPWMxA.
Figure 4-19. Trip-Zone Enable Interrupt Register (TZEINT)
15 8
Reserved
R -0
7 3 2 1 0
Reserved OST CBC Reserved
R-0 R/W-0 R/W-0 R-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 4-19. Trip-Zone Enable Interrupt Register (TZEINT) Field Descriptions
Bits Name Value Description
15-3 Reserved Reserved
2 OST Trip-zone One-Shot Interrupt Enable
0 Disable one-shot interrupt generation
108 Registers SPRU791D – November 2004 – Revised October 2007
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