System Memory Map

FFFFFFFFh

FFFFOOOOh

201 OOOOOh or 202000COh

20000OOOh

080CDOOOh

001 OOOOOh

OOOFOOOOh

OOOE8000h

OOOEOOOOh

OOOC8000h

OOOCOOOOh

OOOB8000h

OOOBOOOOh

Power up boot ROM

Not available

Wingine video RAM: 1 MB

Not available

128MB

(maximum)

Extended memory

1MB

System BIOS ROM shadow RAM: 64KB

Available for shadowing

VGA BIOS ROM shadow RAM: 32KB

Available for shadowing

VGA BIOS ROM shadow RAM:32KB’

--I

VGA color text

4

VGA monochrome text

VGA graphics: 64KB

OOOAOOOOh640KB

Conventional system memory: 640KB

I

COOOOOOOh

*Only one of these address blocks is used to shadow the VGA BIOS ROM. The default starting address is 000C0000h; address OOOEOOOOh is selectable using SETUP.

A-8 Specifications