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A-5 RTC & CMOS RAM MAP
RTC & CMOS:
00 Seconds.
01 Second alarm.
02 Minutes.
03 Minutes alarm.
04 Hours.
05 Hours alarm.
06 Day of week.
07 Day of month.
08 Month.
09 Year.
0A Status register A.
0B Status register B.
0C Status register C.
0D Status register D.
0E Diagnostic status byte.
0F Shutdown byte.
10 FLOPPY DISK drive type byte.
11 Reserve.
12 HARD DISK type byte.
13 Reserve.
14 Equipment type.
15 Base memory low byte.
16 Base memory high byte.
17 Extension memory low byte.
18 Extension memory high byte.
19-2d
2E-2F
30 Reserved for extension memory low byte.
31 Reserved for extension memory high byte.
32 DATE CENTURY byte.
33 INFORMATION FLAG.
34-3F Reserve.
40-7F Reserved for CHIPSET SETTING DATA.
Appendix A3