OSCE=0, WPS=0, SC4P=0, SC2P=0, SC8P=0, UM=0, SWR=0, SC16P=0, SUP=0, WPE=0, CLKO=0
RTC Control Register
| SWR | Software Reset 0 (0): No effect. 1 (1): Resets all RTC registers except for the SWR bit and the RTC_WAR and RTC_RAR registers . The SWR bit is cleared by POR and by software explicitly clearing it. |
| WPE | Wakeup Pin Enable 0 (0): Wakeup pin is disabled. 1 (1): Wakeup pin is enabled and wakeup pin asserts if the RTC interrupt asserts or the wakeup pin is turned on. |
| SUP | Supervisor Access 0 (0): Non-supervisor mode write accesses are not supported and generate a bus error. 1 (1): Non-supervisor mode write accesses are supported. |
| UM | Update Mode 0 (0): Registers cannot be written when locked. 1 (1): Registers can be written when locked under limited conditions. |
| WPS | Wakeup Pin Select 0 (0): Wakeup pin asserts (active low, open drain) if the RTC interrupt asserts or the wakeup pin is turned on. 1 (1): Wakeup pin instead outputs the RTC 32kHz clock, provided the wakeup pin is turned on and the 32kHz clock is output to other peripherals. |
| OSCE | Oscillator Enable 0 (0): 32.768 kHz oscillator is disabled. 1 (1): 32.768 kHz oscillator is enabled. After setting this bit, wait the oscillator startup time before enabling the time counter to allow the 32.768 kHz clock time to stabilize. |
| CLKO | Clock Output 0 (0): The 32 kHz clock is output to other peripherals. 1 (1): The 32 kHz clock is not output to other peripherals. |
| SC16P | Oscillator 16pF Load Configure 0 (0): Disable the load. 1 (1): Enable the additional load. |
| SC8P | Oscillator 8pF Load Configure 0 (0): Disable the load. 1 (1): Enable the additional load. |
| SC4P | Oscillator 4pF Load Configure 0 (0): Disable the load. 1 (1): Enable the additional load. |
| SC2P | Oscillator 2pF Load Configure 0 (0): Disable the load. 1 (1): Enable the additional load. |