Memory map, Table 3-1, Memory map - vortex 86sx/dx processor – ADLINK CoreModule 430 User Manual

Page 23

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Chapter 3

Hardware

CoreModule 430

Reference Manual

17

Memory Map

The following table provides the common PC/AT memory allocations. These are DOS-level addresses. The

OS typically hides these physical addresses by way of memory management. Memory below 000500h is
used by the BIOS.

Table 3-1. Memory Map - Vortex 86SX/DX Processor

Base Address

Function

00000000h -

0009FFFFh

Conventional Memory

000A0000h -

000AFFFFh

Graphics Memory

000B0000h -

000B7FFFh

Mono Text Memory

000B8000h -

000BFFFFh

Color Text Memory

000C0000h -

000C7FFFh

Standard Video BIOS

000D0000h -

000DFFFFh

Reserved for Extended BIOS

000E0000h -

000EFFFFh

Extended System BIOS Area

000F0000h -

000FFFFFh

System BIOS Area (Storage and RAM Shadowing)

00100000h

-

Top of
DRAM

Main DRAM Range

FFFC0000h -
[for SX
processor]

FFE00000h -
[for DX
processor]

FFFFFFFFh

System Flash

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