Specifications

Page B-1
B B
Appendix B -
IRQ and DMA Maps
IRQ and DMA maps
On-board Interupt Usage
IRQ1 Keyboard controller
IRQ2 8259 Expansion interface
IRQ3 COM2: serial port
IRQ4 COM1: serial port
IRQ5 Default Ethernet option
IRQ6 Floppy disk controller
IRQ7 LPT1: parallel port
IRQ8 Real-time clock
IRQ9 (Ethernet option)
IRQ10 (Ethernet option)
IRQ11
IRQ12
IRQ13 Floating Point
IRQ14 IDE hard disk
IRQ15 (Ethernet option)
NMI Watchdog timer
Table B-1. Interrupt Usage .