D.4 1st MB Memory Map
Table D-4:1st MB memory map
Addr. range (Hex) Device
F000h - FFFFh
C800h - EFFFh
C000h - C7FFh
B800h - BFFFh
B000h - B7FFh
A000h - AFFFh
0000h - 9FFFh
86
PCA-6751/PCA-6751V User's Manual
System ROM
System ROM
Expansion ROM
CGA/EGA/VGA text
Unused
EGA/VGA graphics
Base memory