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Address and Interrupt Tables C-1
Appendix C
Address and Interrupt Tables
C.1 System Memory Map
Address Range Definition Function
000000 - 09FFFF 640 KB memory Base memory
0A0000 - 0BFFFF 128 KB video RAM Reserved for graphics display
buffer
0C0000 - 0AFFFF Video BIOS and System
Services
0E0000 - 0EFFFF
256 KB system ROM
POST when power-on
PMU for SMI
Free for runtime
0F0000 - 0FFFFF System BIOS
100000 - 7FFFFF Extended memory
7 MB
Onboard memory
8 MB