20.8.1 Control A
| Name: | CTRLA |
| Offset: | 0x00 |
| Reset: | 0x00 |
| Property: | PAC Write-Protection |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| IORET | |||||||||
| Access | R/W | ||||||||
| Reset | 0 |
Bit 2 – IORET I/O Retention
Note: This bit is not reset by a backup reset.
| Value | Description |
|---|---|
| 0 | After waking up from Backup mode, I/O lines are not held. |
| 1 | After waking up from Backup mode, I/O lines are held until IORET is written to 0. |