Manual

B. Interrupt Request Lines ( IRQ )

There are a total of 15 IRQ lines available on the Industrial CPU Card. Peripheral

devices use interrupt request lines to notify CPU for the service required. The

following table shows the IRQ used by the devices on the Industrial CPU Card.

Level Function

IRQ0 System Timer

IRQ1 Keyboard

IRQ3 Serial Port#2

IRQ4 Serial Port#1

IRQ5 Reserved

IRQ6 Reserved

IRQ7 Parallel Port#1

IRQ8 Real Time Clock

IRQ9 ACPI

IRQ10 Serial Port#4 & Serial Port#6

IRQ11 Serial Port#3 & Serial Port#5

IRQ12 PS/2 Mouse

IRQ13 Reserved

IRQ14 Primary IDE

IRQ15 Secondary IDE