SBC82400 ISA Half-Size CPU Board Series User’s Manual
Hardware Description
26
3.6 Interrupt
Controller
The
SBC82400
is a fully PC compatible control board. It
consists of 16 ISA interrupt request lines and 4 of the 16 can
be either ISA or PCI. The mapping list of the 16 interrupt
request lines is shown below:
NMI
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
Reserved
IRQ6
Floppy disk controller
IRQ7
Parallel port #1
IRQ8
Real time clock
IRQ9
Ethernet
IRQ10
User available
IRQ11
User available
IRQ12
PS/2 Mouse
IRQ13
Math coprocessor
IRQ14
Primary IDE channel
IRQ15
Secondary IDE Channel
