power control/status register
| WUF | Wakeup flag |
| SBF | Standby flag |
| PVDO | PVD output |
| BRR | Backup regulator ready |
| EWUP3 | Enable WKUP3 pin |
| EWUP2 | Enable WKUP2 pin |
| EWUP1 | Enable WKUP1 pin |
| BRE | Backup regulator enable |
| VOSRDY | Regulator voltage scaling output selection ready bit |