System Memory; Interrupt Controller - AXIOMTEK sbc84500 User Manual

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
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
12
Parity check error
System timer output
Keyboard
Interrupt rerouting from IRQ8 through IRQ15
Serial port #2
Serial port #1
Audio port
Floppy disk controller
Parallel port #1
Real time clock
Reserved
Serial port #3
Serial port #4
PS/2 mouse
Math co-processor
Primary IDE channel
Reserved
Hardware Description