Advantech PCM-3362 User Manual

PCM-3362 User Manual

B.1

System I/O Ports

* PNP audio I/O map range from 220 ~ 250H (16 bytes) MPU-401 select from 300 ~
330H (2 bytes)

B.2

1st MB Memory Map

* If Ethernet boot ROM is disabled (Ethernet ROM occupies about 16 KB)
* E0000 - EFFFF is reserved for BIOS POST

B.3

DMA channel assignments

Table B.1: System I/O ports

Addr. range (Hex)

Device

000-01F

DMA controller

020-021

Interrupt controller 1, master

040-05F

8254 timer

060-06F

8042 (keyboard controller)

070-071

Real-time clock, non-maskable interrupt (NMI) mask

87-8A

DMA page register

0A0-0A1

Interrupt controller 2

0C0-0DF

DMA controller

1F0-1F8

Fixed disk

278-27F

Reserved (Parallel port 2,LTP3)

2E8-2EF

Reserved (Series port 4)

2F8-2FF

Serial port 2

378-37F

Parallel printer port 1 (LPT 2)

3B0-3BF

Monochrome display and printer adapter (LPT1)

3D0-3DF

Color/graphics monitor adapter

3E8-3EF

Series port 3

3F0-3F7

Diskette controller

3F8-3FF

Serial port 1

Table B.2: 1st MB memory map

Addr. range (Hex)

Device

F0000h - FFFFFh

System ROM

*CC000h - EFFFFh

Unused (reserved for Ethernet ROM)

C0000h - CBFFFh

Expansion ROM (for VGA BIOS)

B8000h - BFFFFh

CGA/EGA/VGA text

B0000h - B7FFFh

Unused

A0000h - AFFFFh

EGA/VGA graphics

00000h - 9FFFFh

Base memory

Table B.3: DMA channel assignments

Channel

Function

Available