26.7.10 Backup Output Control
Note: These register bits are useful for
indicating to users external application logic MCU Backup mode entry/exit.
| 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: | BKOUT |
| Offset: | 0x0028 |
| Reset: | 0x00000000 |
| Property: | PAC Write-Protection |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| TGLOM1[1:0] | TGLOM0[1:0] | ||||||||
| Access | R/W | R/W | R/W | R/W | |||||
| Reset | 0 | 0 | 0 | 0 | |||||
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| SETn | SETn | ||||||||
| Access | W | W | |||||||
| Reset | 0 | 0 |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| CLRn | CLRn | ||||||||
| Access | W | W | |||||||
| Reset | 0 | 0 |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| ENn | ENn | ||||||||
| Access | W | W | |||||||
| Reset | 0 | 0 |
Bits 24:25, 26:27 – TGLOMn SUPC_OUTn Pin Toggle Output Mode for Backup Output n, n = 0,1
| Value | Description |
|---|---|
| 0x0 | SUPC_OUTn pin output does not toggle (DISABLE). |
| 0x1 | SUPC_OUTn pin output toggles on RTC events (RTCTGL). |
| 0x2 | SUPC_OUTn pin output is set when the device enters Backup mode (BKUPTGL). The output should then be cleared by software using CLRn. |
| 0x3 | Reserved. |
Bits 16,18 – SETn SUPC_OUTn Pin Set Output for Backup Output n, n = 0,1
Writing a '0' to a bit has no effect.
Writing a '1' to a bit will set the corresponding output.
Reading this bit returns '0'.
Bits 8,10 – CLRn SUPC_OUTn Pin Clear Output for Backup Output n, n = 0,1
Writing a '0' to a bit has no effect.
Writing a '1' to a bit will clear the corresponding output.
Reading this bit returns '0'.
Bits 0,2 – ENn SUPC_OUTn Pin Enable Output for Backup Output n, n = 0,1
| Value | Description |
|---|---|
| 0 | SUPC_OUTn Backup Output pin disabled. |
| 1 | SUPC_OUTn Backup Output pin enabled. |