System I/O Ports; First Mb Memory Map - Advantech MIO-2270 User Manual

C.1

System I/O Ports

Table C.1: System I/O Ports
Addr. Range (Hex)
000-02F
020–02D
040-04F
050–052
060-06F
070-07F
080-09F
0A0-0FF
0C0-0DF
0F0-0FF
12E-12F
2F8-2FF
3C0-3DF
3F8-3FF
400-4FF
500-5FF
680-6FF
800-8FF
B00-B3F
C00-CFF
C.2

First MB Memory Map

Table C.2: First MB Memory Map
Addr. Range (Hex)
F0000h - FFFFFh
D0000h – E7FFFh
C0000h – CFFFFh
B8000h - BFFFFh
A0000h - B7FFFh
00000h - 9FFFFh
MIO-2270 User Manual
Device
DMA controller
Interrupt controller
System resource
Timer / Counter
8042 (keyboard controller)
Real-time clock, non-maskable interrupt (NMI) mask
DMA page register
System resource
DMA controller
System resource
System resource
Serial Port 2
System resource
Serial Port 1
System resource
System resource
System resource
System resource
System resource
System resource
Device
System ROM
Unused (reserved for Ethernet ROM)
Expansion ROM (for VGA BIOS)
CGA/EGA/VGA text
EGA/VGA graphics
Base memory
80