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Appendix C
Memory and I/O Maps
Memory Address Map
Address
00000000 to
0009FFFF
000A0000 to
000BFFFF
000C0000 to
000E7FFF
000F0000 to
000FFFFF
00100000 to
1FFFFFFF
74
Name
Function
640KB System
System Board Memory
Board RAM
128KB Video
Reserved for Graphics
Display Memory
Display Memory
192KB I/O
Reserved for ROM on
Expansion ROM
I/O Adapter Card
64KB ROM on
System Board BIOS
the System Board
Maxi m um
System Board Memory
Memory 512MB
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