Interrupt Requests (Irqs) - Intergraph InterServe 800 System Reference Manual

Interrupt Requests (IRQs)

System interrupt request (IRQ) assignments are defined below.
IRQ Name
0 System Timer
1 Keyboard
2 Cascade input for IRQ8 - IRQ15
3 COM2, COM4
4 COM1, COM3
5 MIDI port
6 Floppy Controller
7 Parallel Port
You can assign the spare interrupt listed above to an ISA device. When you add a PCI
device to the system, the system BIOS automatically assigns the interrupt. However, at least
one interrupt must be available for the PCI bus.
When you add an ISA board, you must reserve the interrupt using the AMIBIOS Setup
utility and jumpers on the option board. See the System Setup delivered with the system for
details on using AMIBIOS Setup. See also the vendor documentation for the option board
for jumper and related information.
IRQ Name
8 Real Time Clock
9 SMBUS/ACPI
10 Crystal CS237B Sound Controller
11 Spare
12 Mouse
13 Floating Point Unit
14 EIDE CD-ROM
15 Hardware Monitor
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