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Trip-Zone Submodule Control and Status Registers

Figure 4-17. Trip-Zone Select Register (TZSEL)

15

14

13

12

11

10

9

8

Reserved

 

OSHT6

OSHT5

OSHT4

OSHT3

OSHT2

OSHT1

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

Reserved

 

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 4-17. 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 (Table 4-18) 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 (Table 4-21).

15:14

Reserved

Reserved

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 (Table 4-18) is taken on the EPWMxA and EPWMxB outputs. A cycle-by-cycle trip condition is automatically cleared when the time-base counter reaches zero.

7:6

Reserved

Reserved

 

5

CBC6

Trip-zone 6 (TZ6) Select

 

 

0

Disable TZ6 as a CBC trip source for this ePWM module

 

 

1

Enable TZ6 as a CBC trip source for this ePWM module

 

4

CBC5

Trip-zone 5 (TZ5) Select

 

 

0

Disable TZ5 as a CBC trip source for this ePWM module

 

 

1

Enable TZ5 as a CBC trip source for this ePWM module

 

3

CBC4

Trip-zone 4 (TZ4) Select

 

 

0

Disable TZ4 as a CBC trip source for this ePWM module

 

 

1

Enable TZ4 as a CBC trip source for this ePWM module

 

2

CBC3

Trip-zone 3 (TZ3) Select

 

 

0

Disable TZ3 as a CBC trip source for this ePWM module

 

 

1

Enable TZ3 as a CBC trip source for this ePWM module

 

SPRU791D–November 2004–Revised October 2007

Registers 107

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Page 107
Image 107
Texas Instruments 28xxx, TMS320x28xx manual OSHT6 OSHT5 OSHT4 OSHT3 OSHT2 OSHT1, CBC6 CBC5 CBC4 CBC3 CBC2 CBC1