RTC: Real-Time Clock BKP Start Zone2 is available when BKP Registers2 equal or less than BKP Backup register3, Specifies the backup register start zone 2. BKP Start Zone3 is available when BKP Registers3 equal or great than BKP Backup register2, Specifies the backup register start zone 3. Zone 1 : Read only because shared with TZSC secure Backup Register Zone 1. Zone 1 : read secure write secure. BKP Start Zone2 is available when BKP Registers2 equal or less than BKP Backup register3, Specifies the backup register start zone 2. BKP Start Zone3 is available when BKP Registers3 great or less than BKP Backup register2, Specifies the backup register start zone 3. RTC_Init_Only RTC_Init RTC_Init RTC_TIMESTAMPPIN_DEFAULT RTC_CALIBOUTPUT_512HZ RTC_CALIBOUTPUT_1HZ RTC_SetAlarm_A_IT RTC_ALARM_A RTC_SetAlarm_A RTC_ALARM_A RTC_SetAlarm_A_IT RTC_ALARM_A RTC_SetAlarm_A RTC_ALARM_A RTC_SetAlarm_B_IT RTC_ALARM_B RTC_SetAlarm_B RTC_ALARM_B RTC_SetAlarm_B_IT RTC_ALARM_B RTC_SetAlarm_B RTC_ALARM_B RTC_WakeUp_IT RTC_WakeUp RTC_WakeUp_IT RTC_WakeUp RTC_Timestamp_IT RTC_Timestamp RTC_Calibration RTC_RefClock RTC_ENABLED RTC_CALENDAR AlarmA_Intern AlarmA_Outputed RTC_ALARM_INTERRUPT AlarmB_Intern AlarmB_Outputed RTC_ALARM_INTERRUPT RTC_TIMESTAMP_INTERRUPT WakeUp_Intern WakeUp_Outputed RTC_WAKEUP_INTERRUPT CALIBRATION Prediv_With_REFIN RTCUsed_ForRCC