Module regs
- Cr1
- control register 1
- Cr2
- control register 2
- Cr3
- control register 3
- Dbpr
- disable Backup domain register
- Ioretenr
- port A Standby IO retention enable register
- Ioretr
- port A Standby IO retention status register
- Privcfgr
- privilege control register
- Radioscr
- 2.4 GHz RADIO status and control register
- Seccfgr
- security configuration register
- Sr
- status register
- Svmcr
- supply voltage monitoring control register
- Svmsr
- supply voltage monitoring status register
- Vosr
- voltage scaling register
- Wucr1
- wakeup control register 1
- Wucr2
- wakeup control register 2
- Wucr3
- wakeup control register 3
- Wuscr
- wakeup status clear register
- Wusr
- wakeup status register