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I/O Port Address Map
Each peripheral device in the system is assigned a set of I/O port addresses, which
also becomes the identity of the device. There is a total of 1K-port address space
available. The following table lists the I/O port addresses used on the Industrial CPU
Card.
Address
Device Description
000h - 01Fh
DMA Controller #1
020h - 03Fh
Interrupt Controller #1
040h - 05Fh
Timer
060h - 06Fh
Keyboard Controller
070h - 073h
Real Time Clock, NMI
080h - 09Fh
DMA Page Register
0A0h - 0BFh
Interrupt Controller #2
0C0h - 0DFh
DMA Controller #2
0F0h
Clear Math Coprocessor Busy Signal
0F1h Reset
Math
Coprocessor
170h - 177h
IDE Interface
2F8h - 2FFh
Serial Port #2(COM2)
376h PCI
IDE
Controller
3B0h - 3BBh
VGA Adapter
3C0h - 3CFh
VGA Adapter
3F8h - 3FFh
Serial Port #1(COM1)
4D0h - 4D1h
Motherboard Resource
800h - 8FEh
Motherboard Resource
A00h – A1Fh
Motherboard Resource
CF8h – CFFh
Motherboard Resource
E080 - E09Eh
USB Controller
E400 - E4FEh
Ethernet Controller
E800 - E8FEh
Ethernet Controller
EC00 - EC1Eh
USB Controller
FC00 - FC0Eh
IDE Controller
Summary of Contents for FB2631
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