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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 - 00Fh
DMA Controller #1
020h - 021h
Interrupt Controller #1
022h – 023h
WDT 0 Control Register
040h - 05Fh
Timer Controller
060h - 064h
Keyboard Controller
070h - 073h
Real Time Clock, NMI
080h - 09Fh
DMA Page Register
0A0h – 0AFh
Interrupt Controller #2
0A8h – 0AEh
WTD1 Control Ports
0C0h - 0DFh
DMA Controller #2
0F0h
Clear Math Coprocessor Busy Signal
0F1h Reset
Math
Coprocessor
1F0h - 1F7h
IDE Interface
290h – 297h
System Chipset
2F8h - 2FFh
Serial Port #2(COM2)
2B0 - 2DF
Graphics adapter Controller
3C0 - 3CF
EGA adapter
3D0 - 3DF
CGA adapter
3F8h - 3FFh
Serial Port #1(COM1)
Содержание FB2402
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