Octek HAWK 486, Manual

Page: 44 / 97

TECHNICAL INFORMATION
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4-10
CMOS RAM ADDRESS MAP
Addresses Description
00-0D * Real-time clock information
0E * Diagnostic status byte
0F * Shutdown status byte
10 Diskette drive type byte
- drives A and B
11 Reserved
12
Fixed disk type byte
- drives C and D
13 Reserved
14 Equipment byte
15 Low base memory byte
16 High base memory byte
17 Low expansion memory byte
18 High expansion memory byte
19-2D Reserved
2E-2F 2-byte CMOS checksum
30 * Low expansion memory byte
31 * High expansion memory byte
32 * Date century byte
33 * Information flags
(set during power on)
34-3F Reserved