Appendix A
ROBO-8920VG2 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 – 0BE3
45K
DOS
0BE4 – 0E1B
8.9K
Program Area
0E1C – 9D66
573K
[Available]
9D67 –9EFF
6.4K
Program Area
= Conventional memory ends at 636K =
9F00 – 9FBF
3K
VGA Graphics
9FC0 – 9FFF
1K
Unused
A000 – AFFF
64K
VGA Text
B000 – B7FF
32K
Video ROM
B800 – BFFF
32K
Unused
C000 – CAFF
44K
High RAM
CB00 – EFFF
148K
Unused
F000 - FFFF
64K
ROM
