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A.2
I/O MAPPING
Address
000-01F
020-03F
040-05F
060-06F
070-07F
080-09F
0A0-0BF
0C0-0DF
0F0-0F1, 0F8-0FF
1F0-1F7, 3F6
170-177, 376
3F0-3F7
3F8-3FF (COM1)
2F8-2FF (COM2)
400-9FF
A00-A1F
A20-A2F
B00-0FFF
Optional
Function
Address
DMA Controller 1
Interrupt Controller 1
Timer
Keyboard
Real-time clock
DMA Page Register
Interrupt Controller 2
DMA Controller 2
Math Coprocessor
Primary IDE
Secondary IDE
Floppy Disk
2F8-2FF (COM2)
Serial Port 1 (COM1 by default)
3F8-3FF (COM1)
Serial Port 2 (COM2 by default)
Chipset Reserved
Kontron Registers (on-board)
Kontron Registers (RTM)
Chipset Reserved
A-2
AT8001 User's Guide
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