LSIRDY=B_0x0, LSEON=B_0x0, LSCOEN=B_0x0, VSWRST=B_0x0, LSEEXT=B_0x0, LSEDRV=B_0x0, LSEBYP=B_0x0, RTCEN=B_0x0, LSION=B_0x0, LSECSSD=B_0x0, LSECSSON=B_0x0, RTCSEL=B_0x0, LSERDY=B_0x0, LSCOSEL=B_0x0
RCC Backup domain control register
| LSEON | LSE oscillator enabled 0 (B_0x0): LSE oscillator OFF (default after Backup domain reset) 1 (B_0x1): LSE oscillator ON |
| LSERDY | LSE oscillator ready 0 (B_0x0): LSE oscillator not ready (default after Backup domain reset) 1 (B_0x1): LSE oscillator ready |
| LSEBYP | LSE oscillator bypass 0 (B_0x0): LSE oscillator not bypassed (default after Backup domain reset) 1 (B_0x1): LSE oscillator bypassed |
| LSEDRV | LSE oscillator driving capability 0 (B_0x0): lowest drive (default after Backup domain reset) 1 (B_0x1): medium-low drive 2 (B_0x2): medium-high drive 3 (B_0x3): highest drive |
| LSECSSON | LSE clock security system enable 0 (B_0x0): CSS on 32 kHz oscillator OFF (default after Backup domain reset) 1 (B_0x1): CSS on 32 kHz oscillator ON |
| LSECSSD | LSE clock security system failure detection 0 (B_0x0): no failure detected on 32 kHz oscillator (default after Backup domain reset) 1 (B_0x1): failure detected on 32 kHz oscillator |
| LSEEXT | low-speed external clock type in bypass mode 0 (B_0x0): LSE in analog mode (default after Backup domain reset) 1 (B_0x1): LSE in digital mode (do not use if RTC is active). |
| RTCSEL | RTC clock source selection 0 (B_0x0): no clock (default after Backup domain reset) 1 (B_0x1): LSE selected as RTC clock 2 (B_0x2): LSI selected as RTC clock 3 (B_0x3): HSE divided by RTCPRE value selected as RTC clock |
| RTCEN | RTC clock enable 0 (B_0x0): rtc_ck disabled (default after Backup domain reset) 1 (B_0x1): rtc_ck enabled |
| VSWRST | VSwitch domain software reset 0 (B_0x0): reset not activated (default after Backup domain reset) 1 (B_0x1): resets the entire VSW domain |
| LSCOEN | Low-speed clock output (LSCO) enable 0 (B_0x0): LSCO output disabled 1 (B_0x1): LSCO output enabled |
| LSCOSEL | Low-speed clock output selection 0 (B_0x0): LSI clock selected 1 (B_0x1): LSE clock selected |
| LSION | LSI oscillator enable 0 (B_0x0): LSI oscillator off 1 (B_0x1): LSI oscillator on |
| LSIRDY | LSI oscillator ready 0 (B_0x0): LSI oscillator not ready 1 (B_0x1): LSI oscillator ready |