System Interrupts; System Dma - Compaq DESKPRO 2000 SERIES Maintenance & Service Manual

Hardware IRQ
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
*Default configuration; other configurations = IRQ7, IRQ9, IRQ10, None
Hardware DMA
DMA 0
DMA 1
DMA 2
DMA 3
DMA 4
DMA 5
DMA 6
DMA 7
8-2 Specifications
Table 8-2

System Interrupts

System Function
Timer Interrupt (Not on ISA Bus)
Keyboard (Not on ISA Bus)
Interrupt Controller Cascade (Not on ISA Bus)
Unused
Serial Port (COM 1)
Enhanced Business Audio*
Diskette Drive
Parallel Port (LPT 1)
Real-Time Clock (Not on ISA Bus)
Unused
Unused
PCI Interrupt
Mouse
Coprocessor (Not on ISA Bus)
IDE Interface (Hard Disk and Primary IDE Drive)
CD-ROM (Secondary IDE/Drive)
Table 8-3

System DMA

System Function
Unused
Business Audio (Default; Alternate = DMA0, DMA3, None)
Diskette Drive
ECP Parallel Port LPT1 (Default; Alternate = DMA 0)
DMA Controller Cascading (Not on ISA Bus)
Unused
Unused
Unused