User`s manual

SBC86831 Series All-In-One Mini ITX Board User’s Manual
Hardware Description
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3.5 Interrupt Controller
The SBC86831 Series is a 100% PC compatible control board. It
consists of 16 interrupt request lines, and four out of them can be
programmable. The mapping list of the 16 interrupt request lines is
shown as the following table.
IRQ Parity check error
IRQ0 System timer output
IRQ1 Keyboard
IRQ2 Interrupt rerouting from IRQ8 through IRQ15
IRQ3 Serial port #2
IRQ4 Serial port #1
IRQ5 PCI Device Share
IRQ7 Parallel port #1
IRQ8 Real time clock
IRQ9 ACPI Controller
IRQ10 Serial port #3
IRQ11 Serial port #4
IRQ12 PS/2 Mouse
IRQ13 Math coprocessor
IRQ14 Primary IDE channel
IRQ15 —