System Interrupts - HP Compaq nc4000 Series Maintenance And Service Manual

Specifications
Hardware
IRQ
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
✎
*Default configuration; audio possible configurations are IRQ5, IRQ7, IRQ9,
IRQ10, or none.
6–8

System Interrupts

System
Function
System timer
Keyboard controller
Cascaded
COM2
COM1
Audio (default)*
Diskette drive
Parallel port
RTC
Infrared
System use
System use
Internal point stick or external mouse
Coprocessor (not available to any peripheral)
IDE interface (hard drive and optical drive)
System use
PC Cards may assert IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10,
IRQ11, or IRQ15. Either the infrared or the serial port may
assert IRQ3 or IRQ4.
Table 6-8
Maintenance and Service Guide