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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 Output
IRQ1 Keyboard
IRQ2 Interrupt
Cascade
IRQ3
Serial Port #2
IRQ4
Serial Port #1
IRQ5 AUDIO
IRQ6 Floppy Disk Controller
IRQ7
Parallel Port #1
IRQ8
Real Time Clock
IRQ9 Reserved
IRQ10 LAN
#1
IRQ11 LAN
#2
IRQ12 PS2
Mouse
IRQ13 FPU
IRQ14 Primary
IDE
IRQ15 USB
Summary of Contents for Fanless Series FX5403
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