FabiaTech Corporation
CMOS RAM Map
Register Description
00h -10h
Standard AT-compatible RTC and Status and Status
Register data definitions
11h – 13h
Varies
14h Equipment
Bits
7-6
Number of Floppy Drives
00
1
Drive
01
2
Drives
Bits 5-4 Monitor
Type
00
Not CGA or MDA 01 40x25 CGA
01
2 Drives 80x25 CGA
Bits 3 Display
Enabled
0 Disabled
1 Enabled
Bit 2 Keyboard
Enabled
00
Not CGA or MDA 01 40x25 CGA
01
2 Drives 80x25 CGA
Bit 1 Math
Coprocessor
Installed
0 Absent
1 Present
Bit
0
Floppy Drive Installed
0 Disabled
1 Enabled
15h
Base Memory (in 1KB increments), Low Byte
16h
Base Memory (in 1KB increments), High Byte
17h
IBM-compatible memory (in 1KB increments), Low Byte
18h
IBM-compatible memory (in 1KB increments), High
Byte (max 15 MB)
19h-2Dh Vaires
2Eh
Standard CMOS RAM checksum, high byte
2Fh
Standard CMOS RAM checksum, low byte
30h
IBM-compatible Extended Memory, Low Byte (POST) in
KB
31h
IBM-compatible Extended Memory, High Byte (POST)
in KB
32h Century
Byte
33h
Reserved. Do not use
34h
Reserved. Do not use
35h
Low byte of extended memory (POST) in 64 KB
36h
High byte of extended memory (POST) in 64 KB
37h-3Dh Varies
3Eh
Extended CMOS Checksum, Low Byte (including 34h-
3Dh)
3Fh
Extended CMOS Checksum, High Byte (including 34h-
3Dh)
67
Содержание FP8082 Series
Страница 5: ...CMOS RAM Map 67 Serial Ports 68 Appendix 72 Dimension 72 v ...
Страница 6: ...vi ...
Страница 19: ...FabiaTech Corporation f3 FP8081K1 DIN RAIL mounting kit M3X6 13 ...
Страница 24: ...FabiaTech Corporation 18 ...
Страница 78: ...FabiaTech Corporation 72 Appendix Dimension a FP8082 14 8 220 4 213 5 REF 180 250 149 2 52 60 14 8 ...