RTC/DIG regulator configuration register
| DIG_REG_DBIAS_SLP | Configures the regulation factor for the digital system voltage regulator when the CPU is in sleep status. |
| DIG_REG_DBIAS_WAK | Configures the regulation factor for the digital system voltage regulator when the CPU is in active status. |
| SCK_DCAP | Configures the frequency of the RTC clocks. |
| DBIAS_SLP | Configures the regulation factor for the low-power voltage regulator when the CPU is in sleep status. |
| DBIAS_WAK | Configures the regulation factor for the low-power voltage regulator when the CPU is in active status. |
| DBOOST_FORCE_PD | RTC_DBOOST force power down |
| DBOOST_FORCE_PU | RTC_DBOOST force power up |
| REGULATOR_FORCE_PD | Set this bit to FPD the RTC_REG, which means decreasing its voltage to 0.8 V or lower. |
| REGULATOR_FORCE_PU | Set this bit to FPU the RTC_REG. |