Irq Map - Xycom XVME-655 Manual

IRQ Map

Table Chapter 4 -3 describes the AT-bus IRQ map.
COM1, COM2, and parallel port IRQs are available if software does not
use the ports or does not use the interrupt.
PCI IRQs need to be mapped to an AT-bus IRQ. This is done through
the BIOS setup. Refer to Chapter 3 for more information.
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Table Chapter 4 -3. AT-bus IRQ Map
Interrupt Description
IRQ0 System timer tick
IRQ1 Keyboard
IRQ2 Reserved
IRQ3 COM2
IRQ4 COM1
IRQ5 Available
IRQ6 Floppy drive
IRQ7 Parallel port
IRQ8 Real-time clock
IRQ9 Cascade
IRQ10 Abort switch
IRQ11 Available
IRQ12 Available
IRQ13 Reserved (387)
IRQ14 Fixed disk
IRQ15 Available
Note
Note
Chapter 4 – Programming
4-3