Appendix B Technical Summary
RTC & CMOS RAM MAP
CODE | ASSIGNMENT |
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 byte |
15 | Base memory low byte |
16 | Base memory high byte |
17 | Extension memory low byte |
18 | Extension memory high byte |
30 | Reserved for extension memory low byte |
31 | Reserved for extension memory high byte |
32 | Date Century byte |
33 | Information Flag |
Reserve | |
Reserved for Chipset Setting Data |
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