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ePWM Registers
34.4.5.2 Trip-Zone Select Register (TZSEL)
Figure 34-79. Trip-Zone Select Register (TZSEL) [offset = 24h]
15 14 13 12 11 10 9 8
DCBEVT1 DCAEVT1 OSHT6 OSHT5 OSHT4 OSHT3 OSHT2 OSHT1
R-0 R-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
7 6 5 4 3 2 1 0
DCBEVT2 DCAEVT2 CBC6 CBC5 CBC4 CBC3 CBC2 CBC1
R-0 R/W-0 R/W-0 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 34-39. Trip-Zone Submodule Select Register (TZSEL) Field Descriptions
Bits Name Value Description
One-Shot (OSHT) Trip-zone enable/disable. When any of the enabled pins go low, a one-shot trip event occurs for this ePWM
module. When the event occurs, the action defined in the TZCTL register is taken on the EPWMxA and EPWMxB outputs. The
one-shot trip condition remains latched until the user clears the condition via the TZCLR register.
15 DCBEVT1 Digital Compare Output B Event 1 Select
0 Disable DCBEVT1 as one-shot-trip source for this ePWM module.
1 Enable DCBEVT1 as one-shot-trip source for this ePWM module.
14 DCAEVT1 Digital Compare Output A Event 1 Select
0 Disable DCAEVT1 as one-shot-trip source for this ePWM module.
1 Enable DCAEVT1 as one-shot-trip source for this ePWM module.
13 OSHT6 Trip-zone 6 (TZ6) Select
0 Disable TZ6 as a one-shot trip source for this ePWM module.
1 Enable TZ6 as a one-shot trip source for this ePWM module.
12 OSHT5 Trip-zone 5 (TZ5) Select
0 Disable TZ5 as a one-shot trip source for this ePWM module
1 Enable TZ5 as a one-shot trip source for this ePWM module
11 OSHT4 Trip-zone 4 (TZ4) Select
0 Disable TZ4 as a one-shot trip source for this ePWM module
1 Enable TZ4 as a one-shot trip source for this ePWM module
10 OSHT3 Trip-zone 3 (TZ3) Select
0 Disable TZ3 as a one-shot trip source for this ePWM module
1 Enable TZ3 as a one-shot trip source for this ePWM module
9 OSHT2 Trip-zone 2 (TZ2) Select
0 Disable TZ2 as a one-shot trip source for this ePWM module
1 Enable TZ2 as a one-shot trip source for this ePWM module
8 OSHT1 Trip-zone 1 (TZ1) Select
0 Disable TZ1 as a one-shot trip source for this ePWM module
1 Enable TZ1 as a one-shot trip source for this ePWM module
Cycle-by-Cycle (CBC) Trip-zone enable/disable. When any of the enabled pins go low, a cycle-by-cycle trip event occurs for this
ePWM module. When the event occurs, the action defined in the TZCTL register is taken on the EPWMxA and EPWMxB outputs. A
cycle-by-cycle trip condition is automatically cleared when the time-base counter reaches zero.
7 DCBEVT2 Digital Compare Output B Event 2 Select
0 Disable DCBEVT2 as a CBC trip source for this ePWM module
1 Enable DCBEVT2 as a CBC trip source for this ePWM module
6 DCAEVT2 Digital Compare Output A Event 2 Select
0 Disable DCAEVT2 as a CBC trip source for this ePWM module
1 Enable DCAEVT2 as a CBC trip source for this ePWM module
1803
SPNU562–May 2014 Enhanced Pulse Width Modulator (ePWM) Module
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