ROHS EmETXe-i9652, User Manual

Page: 74 / 80

Appendix
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Peripheral devices use interrupt request lines to notify CPU for the
service required. The following table shows the IRQ used by the devices on
board.
Appendix C: Interrupt Request Lines (IRQ)
Level Function
IRQ 00 System Timer
IRQ 01 Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
IRQ 02 VGA and Link to Secondary PIC
IRQ 03 Communications Port (COM2)
IRQ 04 Communications Port (COM1)
IRQ 05 PCI Device
IRQ 06 Standard floppy disk controller
IRQ 07 Parallel Port
IRQ 08 System CMOS/real time clock
IRQ 09 Microsoft ACPI-Compliant System
IRQ 10 PCI Device
IRQ 11 PCI Device
IRQ 12 PS/2 Compatible Mouse
IRQ 13 PFY exception
IRQ 14 Primary IDE Channel
IRQ 15 PCI Device