AAEON PFM-535S User Manual

Page 49

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P C / 1 0 4 C P U M o d u l e

P F M - 5 3 5 S

Appendix B I/O Information B-4

B.2 1

st

MB Memory Address Map

Memory Address

Description

0000:0000-9000:FFFF System

RAM

A000:0000-A000:FFFF

EGA/VGA Video Memory

B000:0000-B000:7FFF

MDA RAM, Hercules graphics display RAM

B000:8000-B000:FFFF CGA

display

RAM

C000:0000-C000:7FFF

EGA/VGA BIOS ROM

C000:8000-C000:FFFF

Boot ROM enable.

D000:0000-D700:FFFF

Expansion ROM space.

D800:0000-DB00:FFFF

SPI FLASH Emulation Floppy A Enable

DC00:0000-DF00:FFFF

Expansion ROM space.

E000:0000-E000:FFFF

USB Legacy SCSI ROM space.

F000:0000-F000:FFFF Motherboard BIOS

B.3 IRQ Mapping Chart

IRQ0 System

Timer

IRQ1 Keyboard

Controller

IRQ2

Cascade for IRQ8 - 15

IRQ3

Serial Port 2

IRQ4

Serial Port 1

IRQ5

USB / Ethernet 10/100M LAN

IRQ6 USB

IRQ7 Parallel

Port

IRQ8

Real Time Clock

IRQ9 Available

IRQ10

Serial Port 3

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