55
Appendix B
Memory and I/O Maps
Memory Address Map
Address
00000000 to
0009FFFF
000A0000 to
000BFFFF
000C0000 to
000EFFFF
000F0000 to
000FFFFF
00100000 to
1FFFFFFF
Function
System Board Memory
Reserved for Graphics
Display Memory
Reserved for ROM on
I/O Adapter Card
System Board BIOS
System Board Memory
Name
640KB System
Board RAM
128KB Video
Display Memory
192KB I/O
Expansion ROM
64KB ROM on
the System Board
Maximum
Memory 512MB