JG82852GMSL7VP Datasheet, PDF (113/176 Pages) Intel Corporation – Intel® 852GM/852GMV Chipset Intel® 852GM/852GMV Chipset Hub (GMCH)

Intel 852GM/852GMV GMCH System Address Map
R
Figure 5. Detailed View of System Address Map
Extended P6
Memory
PCI Memory
Range
Optional ISA
Hole
DOS
Compatibility
Memory
SYSMAP. DS4
64 G
4 G max
TOM
1G
16 M
15 M
1M
640 k
0M
0FFFFFh
0F0000h
Upper
BIOS Area
(64 kB)
1 MB
0EFFFFh ^{Lower BIOS 960 kB}
Area (64 kB)
0DFFFFh ^{16 kB x 41}
0C0000h
0BFFFFh
Expansion
Card
BIOS and
Buffer Area
(128 kB)
16 kBx8
896 kB
0A0000h
DOS
Compatibility
Memory
09FFFFh
Standard
PCI/ISA
Video
Memory
(SMM
Memory)
128 kB
768 kB
640 kB
DOS Area
000000h
4.2.
Compatibility Area
This area is divided into the following address regions:
0 - 640 kB DOS Area
640 – 768 kB Video Buffer Area
768 - 896 kB in 16-kB sections (total of 8 sections) - Expansion Area
896 –960 kB in 16-kB sections (total of 4 sections) - Extended System BIOS Area
960 kB - 1 MB System Memory (BIOS Area) - 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.
Intel^® 852GM/852GMV Chipset GMCH Datasheet
113