13.11.8.8 Battery Backup Power Switch (BBPS) Control
Name: | BBPS |
Offset: | 0x20 |
Reset: | 0x0000 |
Property: | PAC Write-Protection |
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 | |
PSOKEN | WAKEEN | CONF[1:0] | |||||||
Access | R/W | R/W | R/W | R/W | |||||
Reset | 0 | 0 | 0 | 0 |
Bit 3 – PSOKEN Power Supply OK Enable
Value | Description |
---|---|
0 |
The PSOK pin is not used. |
1 | The PSOK pin is used to determine the status of the Main Power Supply. |
Bit 2 – WAKEEN Wake Enable
Value | Description |
---|---|
0 | The device is not woken up when switched from battery backup power to Main Power. |
1 | The device is woken up when switched from battery backup power to Main Power. |
Bits 1:0 – CONF[1:0] Battery Backup Power Switch Configuration
Value | Name | Description |
---|---|---|
0x0 | NONE | The backup domain is always supplied by Main Power. |
0x1 | APWS | The power switch is handled by the Automatic Power Switch. |
0x2 | FORCED | The backup domain is always supplied by Battery Backup Power. |
0x3 | BOD33 | The power switch is handled by the BOD33. |