I/O ADDRESS MAP
INTERRUPT ASSIGNMENTS
Hex Range
Device
000-01F
DMA Controller 1
020-03F
Interrupt Controller 1, Master
040-05F
Timer
060-06F
8042 (Keyboard)
070-07F
Realtime Clock, NMI (non-maskable interrupt) Mask
080-09F
DMA Page Register
0A0-0BF
Interrupt Controller 2
0C0-0DF
DMA Controller 2
0F0
Clear Math Coprocessor Busy
0F1
Reset Math Coprocessor
0F8-0FF
Math Coprocessor
1F0-1F8
Fixed Disk
200-207
Game I/O
278-27F
Parallel Printer Port 2
2F8-2FF
Serial Port 2
300-31F
Prototype Card
360-36F
Reserved
378-37F
Parallel Printer Port 1
380-38F
SDLC, Bisynchronous 2
3A0-3AF
Bisynchronous 1
3B0-3BF
Monochrome Display and Printer Adapter
3C0-3CF
Reserved
3D0-3DF
Color/Graphics Monitor Adapter
3F0-3F7
Diskette Controller
3F8-3FF
Serial Port 1
Interrupt
Description
IRQ0
Timer Output 0
IRQ1
Keyboard (Output Buffer Full)
IRQ2
Interrupt 8 through 15
IRQ3
Serial Port 2
IRQ4
Serial Port 1
IRQ5
Parallel Port 2
IRQ6
Diskette Controller
IRQ7
Parallel Port 1
IRQ8
Realtime Clock Interrupt
IRQ9
Software Redirected to INT 0AH (IRQ2)
IRQ10
Unassigned
IRQ11
Unassigned
IRQ12
Unassigned
IRQ13
Coprocessor
IRQ14
Fixed Disk Controller
IRQ15
Unassigned
ISA REFERENCE
2-8
TECHNICAL REFERENCE
Содержание SB586TCP/166
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