This register defines trigger source for each of the eight trigger outputs, and the mask for each of the eight trigger inputs. This register is a write-only register. Issuing a read request has no effect, and undefined data is read.
Writing the register affects the cross trigger outputs of the MicroBlaze™ processor or processors selected by the Which MicroBlaze Debug Register.
See the MicroBlaze Processor Reference Guide (UG984) for the definition of the eight MicroBlaze trigger inputs and outputs.
| Reserved | Trigger | ||
| 31 | 16 | 15 | 0 |
| Bits | Name | Access | Reset Value | Description |
|---|---|---|---|---|
| 31 - 16 | Reserved | N/A | 0 | Reserved |
| 15 - 12 | Output Select | W | See Notes 1 | Trigger output source for the selected MicroBlaze trigger output, according to the following table. |
| 11 - 4 | Input Mask | W | 11111111 |
Mask bits for each MicroBlaze trigger input for the selected trigger output. Bits with value 0 do not affect the output. Bit 11 = MicroBlaze Trigger input 0 ... Bit 4 = MicroBlaze Trigger input 7 |
| 3 | And/Or | W | 0 |
Logic function to combine inputs: 0 = Logic or, triggers if any input is set 1 = Logic and, triggers only if all inputs are set |
| 2 - 0 | Index | W | 000 |
Selected MicroBlaze trigger output to change: 000 = MicroBlaze Trigger output 0 ... 111 = MicroBlaze Trigger output 7 |
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| Field Value | Name | Description |
|---|---|---|
| 0000 | Static One | Static one, no input selected |
| 0001 - 1000 | Trigger Input |
0001 = Select MicroBlaze Trigger Input 0 ... 1000 = Select MicroBlaze Trigger Input 7 |
| 1001 - 1100 | External Trigger Input |
1001 = Select External Trigger Input 0 ... 1100 = Select External Trigger Input 3 |
| 1101 | Static Zero | Static zero, no input selected |
| 1110 - 1111 | Reserved | Reserved |