Appendix A
96M4311o User’s Manual
System Memory Address Map
Each On-board device in the system is assigned a set of memory addresses, which
also can be identical of the device. The following table lists the system memory
address used.
Memory Area
Size
Device Description
0000 – 003F
1K
Interrupt Area
0040 – 004F
0.3K
BIOS Data Area
0050 – 006F
0.5K
System Data
0070 – 0436
15K
DOS
0437 – 0600
7.2K
Program Area
0601 – 9F7F
613K
[Available]
= Conventional memory ends at 638K =
A000 – AFFF
64K
VGA Graphics
B000 – B7FF
32K
Unused
B800 – B7FF
32K
VGA Text
C000 – CE7F
55K
Video ROM
CE80 – DFFF
71K
Unused
E000 – EFFF
64K
System ROM
F000 – FFFF
64K
System ROM
HMA
64K
First 64K Extended