Advantech MIO-5270 User Manual download pdf (Page 68)

MIO-5270 User Manual 58

B.1 System I/O Ports

B.2 1st MB memory map

Table B.1: System I/O Ports

Addr. Range (Hex) Device

000-01F DMA Controller

20h-2Dh Interrupt Controller

50h-52h Timer/Counter

060-06F 8042 (keyboard controller)

070-07F Real-time clock, non-maskable interrupt (NMI) mask

080-09F DMA page register

0A0-0BF 0A0-0BF

0C0-0DF DMA controller

170h-177h IDE Controller

1F0h-1F7h IDE Controller

299h-29Ah EC HM Index port and Data port

29Ch-29Dh EC Index port and Data port

2E8-2EF Serial port 4

2F8-2FF Serial port 2

3E8-3EF Serial port 3

3F8-3FF Serial port 1

Table B.2: 1st MB memory map

Addr. Range (Hex) Device

F0000h - FFFFFh System ROM

D0000h - EFFFFh Unused (reserved for Ethernet ROM)

C0000h - CEFFFh Expansion ROM (for VGA BIOS)

B8000h - BFFFFh CGA/EGA/VGA text

B0000h - B7FFFh Unused

A0000h - AFFFFh EGA/VGA graphics

00000h - 9FFFFh Base memory

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Advantech MIO-5270 User Manual Page 68