System Interrupts; System Dma - Compaq Deskpro EX User Manual

6.1.2

System Interrupts

Hardware IRQ
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
6.1.3

System DMA

Hardware DMA
0
1
2
3
4
5
6
7
6-2 Specifications
System Function
Timer Interrupt
Keyboard
Interrupt Controller Cascade
Serial Port (COM B)
Serial Port (COM A)
Audio
Diskette Drive
Parallel Port (LPT 1)
Real-Time Clock
Available for PCI
Available for PCI
Available for PCI
Mouse
Coprocessor
Primary IDE Controller
Secondary IDE Controller
System Function
Unused
Unused
Diskette Drive
ECP Parallel Port LPT1 (Default; Alternate = DMA 0)
DMA Controller Cascading
Unused
Unused
Unused