82C836 Datasheet, PDF (112/205 Pages) List of Unclassifed Manufacturers – Single-Chip 386sx AT

s Memory Address Map
Address Maps
Memory Address Map
The following Table identifies the memory addresses used in the 82C836. For more
detailed information about memory addressing, refer to the IBM PC/AT Technical
Reference Manual.
Table 9-12. Memory Address Map
I/O Address
000000-09FFFFH
0A0000-0BFFFFH
0C0000-0EFFFFH
0F0000-0FFFFFH
100000-FBFFFFH
FC0000-FFFFFFH
FC0000-FEFFFFH
FF0000-FFFFFFH
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/O
R/O
Description
‘‘Conventional ’’ System RAM
Video Memory or Shadow RAM
BIOS Extension or Shadow RAM
ROM or Shadow RAM
Extended or Expanded Memory
Expanded Memory (EMS)
BIOS Extension Image
ROM Image
9-6 Revision 3.0
PRELIMINARY
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