MSM58321 clock/calendar equivalent, real time clock/calendar.
* 7 Function-Second, Minute, Hour, Day, Day-of-Week, Month, Year
* Automatic leap year calender
* 12/24 hour format
* Frequency divider 5-poststage reset .
The 4-bit bidirectional bus line method is used for the data I/O circuit; the clock is set, corrected, or read by acces.
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