2 system interrupts, 3 system dma – Compaq EXS Series User Manual
Page 68
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6-2
Specifications
6.1.2
System Interrupts
Hardware IRQ
System Function
0
Timer Interrupt
1
Keyboard
2
Interrupt Controller Cascade
3
Serial Port (COM B)
4
Serial Port (COM A)
5
Audio
6
Diskette Drive
7
Parallel Port (LPT 1)
8
Real-Time Clock
9
Available for PCI
10
Available for PCI
11
Available for PCI
12
Mouse
13
Coprocessor
14
Primary IDE Controller
15
Secondary IDE Controller
6.1.3
System DMA
Hardware DMA
System Function
0
Unused
1
Unused
2
Diskette Drive
3
ECP Parallel Port LPT1 (Default; Alternate = DMA 0)
4
DMA Controller Cascading
5
Unused
6
Unused
7
Unused
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