Appendix C: Memory Mapping - Intel 486MIS Quick Start Manual

APPENDIX C: MEMORY MAPPING

Address
(hex)
00000000-
0007FFFF
00080000-
0009FFFF
000A0000-
000BFFFF
000C0000-
000C7FFF
000C8000-
000CFFFF
000D0000-
000DFFFF
000E0000-
000EFFFF
000F0000-
000FFFFF
00100000-
00BFFFFF
00C00000-
00FFFFFF
01000000-
BFFFFFFF
C0000000-
C1FFFFFF
C2000000-
FFFDFFFF
FFFE0000-
FFFFFFFF
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Function
512K System RAM
128K System RAM
128K Video RAM
32K Video BIOS
32K I/O ROM
64K I/O ROM
64K Extended BIOS
64K On-Board
BIOS ROM
System Memory
(RAM)
System Memory
(RAM)
System Memory
(RAM)
System Memory
(RAM)
System Memory
128K On-Board
BIOS ROM
486MIS System Board User's Manual
Comments
Cached
Cached
Not Cached
Cached
Not Cached
Not Cached
Not Cached
Cached
Cached
Not cached if memory
mapped I/O board is used
in this range
Cached
Cached
Cached
Not cached