Intel SOM-4486 user manual Table B.3 Interrupt assignments

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B.3 Interrupt assignments

Table B.3: Interrupt assignments

Interrupt#	Interrupt source
NMI	Parity error detected
IRQ 0	Interval timer
IRQ 1	Keyboard
IRQ 2	Interrupt from controller 2 (cascade)
IRQ 3	Serial communication port 2
IRQ 4	Serial communication port 1
IRQ 5	Available
IRQ 6	Diskette controller (FDC)
IRQ 7	Parallel port 1 (print port)
IRQ 8	Real-time clock
IRQ 9	Reserve
IRQ 10	Available
IRQ 11	Reserved for watchdog timer
IRQ 12	PS/2 mouse
IRQ 13	INT from co-processor
IRQ 14	Preliminary IDE
IRQ 15	Secondary IDE for CompactFlash

USB and Ethernet IRQ is automatically set by the system

SOM-4486 User’s Manual

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Contents SOM-4486 ETX Module Copyright Acknowledgements Packing List Additional Information and AssistanceFCC Contents Appendix a Prog. Watchdog Timer General Information Introduction IntroductionSpecifications Standard System On Module functions2 VGA/flat panel Interface Audio function4 LCI Mechanical and environmentalBoard Dimensions SOM-4486 dimensionsBoard layout dimensions SOM-4486 Top viewSOM-4486 Solder view SOM-4486 User’s Manual Connector Assignments Descriptions Connector Assignments Connector LocationsPin Assignments for X1/2/3/4 connectors Safety precautions SOM-4486 User’s Manual Software Configuration VGA display software configuration Utility CD diskBios VGA setup screen Connections for two channel Lvds SOM-4486PCI Graphic Setup Chipset Display memoryDisplay types Dual/Simultaneous DisplayPage Installation of the PCI Graphic driver Installation for Windows 98/ME/2000/XPPage SOM-4486 User’s Manual Further Information SOM-4486 User’s Manual Audio Setup Driver installation Before you beginWindows 9x/2000/Me/XP drivers SOM-4486 User’s Manual LAN Configuration Features Installation of Ethernet DriverLCI Bus Ethernet Interface Installation for Windows SOM-4486 User’s Manual Page Further information Programming the Watchdog Timer Appendix a Prog. Watchdog Timer Watchdog programmingOUT DX,AL MOV DX,2FH MOV AL,00H MOV DX,2EH MOV AL,F6H SOM-4486 User’s Manual System Assignments Appendix B System Assignments System I/O portsDMA channel assignments Table B.2 DMA channel assignmentsInterrupt assignments Table B.3 Interrupt assignments1st MB memory map Table B.4 1st MB memory mapSOM-4486 User’s Manual