Moxa Technologies C168HS user manual PC I/O Port Address Map, IO/ Address Device

Troubleshooting

PC I/O Port Address Map

The following is the list of the I/O port addresses commonly used, which is good for preventing I/O address conflict when configuring Smartio C168 Series.

IO/ Address	Device
000-01F	DMA controller 1
020-03F	interrupt controller
040-05F	Timer
060-06F	Keyboard
070-07F	Real-time clock
080-09F	DMA page register
0A0-0BF	Interrupt controller 2
0C0-0DF	DMA controller
0F0-0FF	Math coprocessor
100-1EF	not usable
1F0-1F8	Fixed disk
200-207	Game I/O
278-27F	Parallel printer port 2 ( LP2: )
2F8-2FF	Serial Port 2 ( COM2: )
300-31F	Prototype card
360-36F	Reserved
378-37F	Parallel printer port 1 ( LP1: )
3B0-3BF	Monochrome display
3C0-3CF	Reserved
3D0-3DF	Color graphics display
3F0-3F7	Diskette controller
3F8-3FF	Serial port 1 ( COM 1: )

Smartio C168H/HS User’s Manual A-3