Acer Veriton 7900Pro Service Manual page 32

I/O Address Map
Hex Range
000-01F
020-021
040-043
060-060
061-061
070-071
080-08F
0A0-0A1
0C0-0DF
0F0-0FF
170-177
1F0-1F7
278-27F
2F8-2FF
378-37F
3F0-3F5
3F6-3F6
3F7-3F7
3F8-3FF
0CF8
0CFC
778-77A
IRQ Assignment Map
IRQx
IRQ0 Timer
IRQ1 Keyboard
IRQ2 Reserved
IRQ3
IRQ4
IRQ5 Reserved
IRQ6 Floppy Disk
IRQ7
IRQ8 Real Time Clock
IRQ9 N
IRQ10 N
IRQ11 N
IRQ12 PS/2 Mouse
IRQ13 Numeric Processor
IRQ14 Embedded Hard Disk
IRQ15 Reserved
NOTE: N - Not be used
26
DMA Controller-1
Interrupt Controller-1
System Timer
Keyboard Controller 8742
System Speaker
CMOS RAM Address and Real Time Clock
DMA Page Register
Interrupt Controller-2
DMA Controller-2
Math Co-Processor
Secondary IDE
Primary IDE
Parallel Printer Port 2
Serial Asynchronous Port 2
Parallel Printer Port 1
Floppy Disk Controller
Secondary IDE
Primary IDE
Serial Asynchronous Port 1
Configuration Address Register
Configuration Data Register
Parallel Printer Port 1
System Devices
Serial Port 2
Serial Port 1
Parallel Port
Devices
Add-On-Card Devices
N
N
N
Reserved
Reserved
Reserved
Reserved
Reserved
N
Reserved
Reserved
Reserved
Reserved
N
Reserved
Reserved
Chapter 1