+ Refer to AN4073 on how to use this bit.

+ Backup regulator enable.

+ Backup regulator ready.

+ Clear Standby Flag.

+ Clear Wakeup Flag.

+ Disable Backup Domain write protection.

+ Enable WKUP pin.

+ Flash Interface Stop while System Run.

+ Flash Memory Sleep System Run.

+ Flash power down in Stop mode.

+ Low-Power Deepsleep.

+ Low Power Regulator Low Voltage in Deep Sleep mode.

+ Main Regulator Low Voltage in Deep Sleep mode.

+ Power Down Deepsleep.

+ PLS[2:0] bits (PVD Level Selection).

PVD level 0.

PVD level 1.

PVD level 2.

PVD level 3.

PVD level 4.

PVD level 5.

PVD level 6.

PVD level 7.

+ Power Voltage Detector Enable.

+ PVD Output.

+ Standby Flag.

+ VOS[1:0] bits (Regulator voltage scaling output selection).

Bit 0.

Bit 1.

+ Regulator voltage scaling output selection ready.

+ Wakeup Flag.

emgo:const.