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RTC Real-time Clock and Calendar
Time-of-day clock/calendar with subseconds, seconds, minutes, hours (12h/24h format), day (day of week), date (day of month), month, and year.
RTC_DR
RTC Date Register
| DU[3:0] | Date units in BCD format | |
| DT[1:0] | Date tens in BCD format | |
| 1 | Wake up timer configuration allowed | |