====== Real Time Clock (RTC) ======

The RTC is an independent BCD timer/counter. It provides a time-of-day clock/calendar, two programmable alarms and a programmable periodic wake up timer. 

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===== Features =====

  * Time-of-day clock/calendar with subseconds, seconds, minutes, hours (12h/24h format), day (day of week), date (day of month), month, and year
  * Daylight saving compensation.
  * Two programmable alarms (interrupts).
  * Programmable wakeup timer (interrupt).
  * Digital calibration.
  * Runs regardless of device status i.e. also in low-power modes and reset 
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===== Functions =====

These functions are available:
  * [[rtc_real_time_clock|Real-time Clock and Calendar]]
  * [[rtc_wakeup|WakeUp Timer]]
  * [[rtc_alarm|Alarm Timer]]