Address and Interrupt Tables B-3
B.3 Interrupt Levels
Interrupt Number Interrupt Source (Device Name)
IRQ 0
IRQ 1
IRQ 2
IRQ 3
IRQ 4
IRQ 5
IRQ 6
IRQ 7
IRQ 8
IRQ 9
IRQ 10
IRQ 11
IRQ 12
IRQ 13
IRQ 14
IRQ 15
System Timer
Keyboard
Cascade
IrDA / 2F8h
Serial Port 1 / 3F8h
Audio ESS1688
Floppy Disk Controller (FDC)
Parallel Port
Real Time Clock (RTC)
Ethernet on Port Replicator
Internal Modem / 3E8h
PCMCIA
PS/2 Mouse
Co-processor
Hard disk
CD-ROM
B.4 DMA Channels
Controller Channel Address Function
1
1
1
1
2
2
2
2
0
1
2
3
4
5
6
7
0087
0083
0081
0082
Cascade
008B
0089
008A
Audio (default)
Audio (option) / ECP
Diskette
Audio (option)
Cascade
Spare