Acer 3300S User Manual
Page 25
Chapter 1
19
NOTE: N - Not to be used.
I/O Address Map
Hex Range
Devices
000-00F
020-021
040-043
060-060
061-061
070-071
081-08F
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
DMA Controller-1
Interrupt Controller-1
System Timer
Keyboard Controller 8742
System Speaker
CMOS RAM Address and Real Time Clock
DMA Controller-2
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
IRQ Assignment Map
IRQx
System Devices
Add-On-Card Devices
IRQ0 Timer
N
(Notes)
IRQ1
Keyboard
N
IRQ2
Cascade Interrupt Control
N
IRQ3
Serial Alternate
Reserved
IRQ4
Serial Primary
Reserved
IRQ5
Parallel Port (Alternate)
Reserved
IRQ6
Floppy Diskette
Reserved
IRQ7
Parallel Port
Reserved
IRQ8
Real Time Clock
N
IRQ9
N
Reserved
IRQ10
N
Reserved
IRQ11
N
Reserved
IRQ12
PS/2 Mouse
Reserved
IRQ13
Math Co-processor Exception
N
IRQ14
Fix Diskette
Reserved
IRQ15
Fix Diskette
Reserved