Rainbow Electronics AT73C246 - Manual (Page 44)

44
11050A–PMAAC–07-Apr-10
AT73C246
11.10.4 RTC Time Register
Name: RTC_TIMR
Access:
Read-write
Address: 0x08
• SEC: Current Second
The range that can be set is 0 - 59 (BCD).
The lowest four bits encode the units. The higher bits encode the tens.
• MIN: Current Minute
The range that can be set is 0 - 59 (BCD).
The lowest four bits encode the units. The higher bits encode the tens.
• HOUR: Current Hour
The range that can be set is 1 - 12 (BCD) in 12-hour mode or 0 - 23 (BCD) in 24-hour mode.
• AMPM: Ante Meridiem Post Meridiem Indicator
This bit is the AM/PM indicator in 12-hour mode.
0 = AM.
1 = PM.
All non-significant bits read zero.
31 30 29 28 27 26 25 24
– – – – – – – –
23 22 21 20 19 18 17 16
– AMPM HOUR
15 14 13 12 11 10 9 8
– MIN
7 6 5 4 3 2 1 0
– SEC