26.9.2 AIC Source Mode Register
This register can only be written if the WPEN bit is cleared in the AIC Write Protection Mode Register.
| Name: | AIC_SMR |
| Offset: | 0x04 |
| Reset: | 0x00000000 |
| Property: | Read/Write |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| Access | |||||||||
| Reset |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| Access | |||||||||
| Reset |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| Access | |||||||||
| Reset |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| SRCTYPE[1:0] | PRIOR[2:0] | ||||||||
| Access | R/W | R/W | R/W | R/W | R/W | ||||
| Reset | 0 | 0 | 0 | 0 | 0 | ||||
Bits 6:5 – SRCTYPE[1:0] Interrupt Source Type
The active level or edge is not programmable for the internal interrupt source selected by INTSEL.
| Value | Name | Description |
|---|---|---|
| 0 | INT_LEVEL_SENSITIVE | High-level sensitive for internal source. Low-level sensitive for external source. |
| 1 | EXT_NEGATIVE_EDGE | Negative-edge triggered for external source. |
| 2 | EXT_HIGH_LEVEL | High-level sensitive for internal source. High-level sensitive for external source. |
| 3 | EXT_POSITIVE_EDGE | Positive-edge triggered for external source. |
Bits 2:0 – PRIOR[2:0] Priority Level
Programs the priority level of the source selected by INTSEL except FIQ source (source 0).
The priority level can be between 0 (lowest) and 7 (highest).
The priority level is not used for the FIQ.