AXIOMTEK sbc84500, User Manual

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SBC84500 User’s Manual
3.4 System Memory
SBC84500VEA has one onboard 144-pin SODIMM sockets, able to support
16MB, 32MB, 64MB, 128MB SODIMM modules, providing the user with
up to 128MB system memory.
3.5 Interrupt Controller
The SBC84500VEA 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
Audio port
IRQ6 Floppy disk controller
IRQ7
Parallel port #1
IRQ8 Real time clock
IRQ9
Reserved
IRQ10
Serial port #3
IRQ11 Serial port #4
IRQ12
PS/2 mouse
IRQ13
Math co-processor
IRQ14 Primary IDE channel
IRQ15
Reserved
Hardware Description
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