PWR Backup domain control register.
PWR Backup domain status register.
PWR Backup domain control register.
PWR I/O retention register.
PWR power mode control register.
PWR status register.
PWR privilege configuration register.
PWR supply configuration control register.
PWR voltage monitor control register.
PWR voltage monitor status register.
PWR voltage scaling control register.
PWR voltage scaling status register.
PWR wakeup configuration register.
PWR wakeup status clear register.
PWR wakeup status register.