I/O Port Address Map - AXIOMTEK AX12270 User Manual

AX12270 PC/104 Module Series User's Manual
3.5

I/O Port Address Map

The CPU card communicates via I/O ports. A total 1KB port
addresses can be assigned to other devices via I/O expansion cards.
Address
000-01F
020-003
022-023
040-043
060
061
064
070
071
078
080-08F
0A0-A1
0C0-0DE
0F0
102
170-177
1F0-1F7
2F8-2FF
378-37F
3B4, 3B5, 3BA
3D4, 3D5, 3DA
03C-3F5
3F6
3F7
3F8-3FF
CF8
CFC-CFF
46E8
26
Devices
DMA controller #1
Interrupt controller #1
STPC Specific Registers
Timer Controller
Keyboard controller
Port B
Kbd Ctlr, CMD, STAT Byte
Real Time Clock
Real Time Clock Data
General Purpose I/O
DMA page register
Interrupt controller #2
DMA controller #1
Reset Numeric Error
VGA Setup Register
Secondary IDE Channel
Primary IDE Channel
Serial Port 2#2 (COM2)
Parallel Port 1
VGA Registers
VGA Registers
VGA Registers
IDE Command Port
Floopy Command Port
Serial Port 1#1 (COM1)
PCI Configuration Address Registers
PCI Configuration Data Registers
VGA Add-in mode enable Register
Hardware Description