Datasheet

System Address Map
R
Datasheet 163
Figure 8. Detailed View of the Intel
®
852GME GMCH and Intel
®
852PM MCH System Address
Map
4.2 MS-DOS* Compatibility Area
This compatibility region is divided into the following address regions:
• Source synchronous 0 - 640 kB DOS Area
• 640 – 768 kB Video Buffer Area
• 768 – 896 kB in 16-kB sections (total of eight sections) - Expansion Area
• 896 –960 kB in 16-kB sections (total of four sections) - Extended System BIOS Area
• 960 kB – 1 MB System BIOS area
There are 16 system memory segments in the compatibility area. Thirteen of the system memory
ranges can be enabled or disabled independently for both Read and Write cycles.