The MULTIC2 provides a real time clock.
When the board is disconnected from the battery voltage (VBAT), the data retention of the real time clock is more than 4 days.
The real time clock accuracy is less than 1 Min per month at 25°C.
The time and date values can be set and read by the applicative software (see mnemonics description in the table below below), and diagnostic tool.

1 - Parameters Description

Parameter	Description
RTC_Status_Per	To set the recurrence period of the RTC_Status frame to read RTC information. The recurrence value is fixed to 100 Ms.

2 - Mnemonics Description

Mnemonic	STraToN Type	Description
Year	WORD	To read the RTC year.
Min	WORD	To read the RTC minute.
Sec	WORD	To read the RTC seconds.
Date	WORD	To read the RTC date,it refers to the day in the Month (1-31).
Hour	WORD	To read the RTC hours
Month	WORD	To read the RTC month
DayOfweek	WORD	To read the RTC day of the week.
Status_RTC	BOOL	is set to "1" to inform Master that RTC is updating. After that Date/Time has been successfully updated in RTC Status_RTC is reset to "0" for at least a transmission period of RTC_STATUS_Frame. If a default appeared on RTC oscillator may have corrupted RTC data validity, Status_RTC is set to "1"
Status_Alarm1	BOOL	is set to "1" to inform Master that Alarm1 is updating. After that Date/Time for Alarm1 has been successfully updated in RTC Status_Alarm1 is reset to "0" for at least RTC_STATUS_PER.
Status_Alarm2	BOOL	is set to "1" to inform Master that Alarm2 is updating. After that Date/Time for Alarm1 has been successfully updated in RTC Status_Alarm2 is reset to "0" for at least RTC_STATUS_PER.