
SBC86834 All-In-One Mini ITX Board User’s Manual
Hardware Description
45
4.5 Interrupt
Controller
The
SBC86834 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
IRQ1
Standard 101/102-Key or Microsoft Natural PS/2
Keyboard
IRQ2
Interrupt rerouting from IRQ8 through IRQ15
IRQ3
Serial port #2, #4, #6
IRQ4
Serial port #1, #3, #5
IRQ5
PCI Device Share
IRQ7
PCI Device Share
IRQ8
System CMOS/real time clock
IRQ9
Microsoft ACPI-Conpliant System
IRQ10
PCI Device Share
IRQ11
PCI Device Share
IRQ12
PS/2 Compatible Mouse
IRQ13
Numeric data processor
IRQ14
Primary IDE channel
IRQ15 —
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