1St Mb Memory Map - Advantech PCM-4825 User Manual

A.17 1st MB memory map

1st MB memory map

Addr. range (Hex)Device
F000h - FFFFh
C800h - EFFFh
C000h - C7FFh
B800h - BFFFh
B000h - B7FFh
A000h - AFFFh
0000h - 9FFFh
* D000 - D400H DOC 2000
System ROM
Unused
Expansion ROM
CGA/EGA/VGA text
Unused
EGA/VGA graphics
Base memory
Appendix A Pin Assignments 69