Specifications

Table 6-13

System Memory Map

Size

Memory Address

System Function

 

 

 

 

640 K

00000000

- 0009FFFF

Base memory

 

 

 

128 K

000A0000 - 000BFFFF

Video memory

 

 

 

48 K

000C0000 - 000CBFFF

Video BIOS

 

 

 

160 K

000C8000 - 000E7FFF

unused

 

 

 

64 K

000E8000 - 000FFFFF

System BIOS

 

 

 

 

15 M

00100000

- 00FFFFFF

Extended memory

 

 

 

 

58 M

01000000

- 047FFFFF

Super extended memory

 

 

 

 

58 M

04800000

- 07FFFFFF

unused

 

 

 

 

2 M

08000000

- 080FFFFF

Video memory (direct access)

 

 

 

 

4 G

08200000

- FFFEFFFF

unused

 

 

 

64 K

FFFF0000 - FFFFFFFF

System BIOS

 

 

 

 

Maintenance and Service Guide

6–17