45.6.6 Synchronization Busy
Note: Access to this register is limited to 32-bit width. Byte level access is not
allowed.
| Symbol | Description | Symbol | Description | Symbol | Description |
|---|---|---|---|---|---|
| R | Readable bit | HC | Cleared by Hardware | (Grey cell) | Unimplemented |
| W | Writable bit | HS | Set by Hardware | X | Bit is unknown at Reset |
| K | Write to clear | S | Software settable bit | — | — |
| Name: | SYNCBUSY |
| Offset: | 0x14 |
| Reset: | 0x00000000 |
| Property: | - |
| 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 | |
| ENABLE | SWRST | ||||||||
| Access | R | R | |||||||
| Reset | 0 | 0 |
Bit 1 – ENABLE Enable
| Value | Description |
|---|---|
| 0 | Write synchronization for CTRLA.ENABLE bit (CTRLA <1>) bit is complete. |
| 1 | Write synchronization for CTRLA.ENABLE bit (CTRLA <1>) bit is ongoing. |
Bit 0 – SWRST Software Reset Synchronization Busy Status
This bit will set in two ways:
- Writing ‘1’ to CTRLA.SWRST bit (CTRLA <0>)
- A tamper event can occur when CTRLA.TAMPERS (CTRLA <4>) = ‘1’ (i.e., Tamper erase is enabled)
| Value | Description |
|---|---|
| 0 | Write synchronization for CTRLA.SWRST bit (CTRLA <0>) bit is complete. |
| 1 | Write synchronization for CTRLA.SWRST bit (CTRLA <0>) bit is ongoing. |