Chapter 1 31
4D0-4D1
CF8-CFF
PCI configuration register
IRQ Assignment Map
Interrupt Channel Function(Hardware)
IRQ00 System Timer
IRQ01 Keyboard
IRQ03 IrDA Fast Infrared Port
IRQ04 Communications Port (COM1)
IRQ05 LAN, USB
IRQ06 Free
IRQ07 Free
IRQ08 System CMOS / realtime clock
IRQ09 SCI IRQ used by ACPI bus, Wireless LAN
IRQ10 USB, Modem, VGA, MultiMedia Bay, 1394, Audio
IRQ11 O2 Micro Smart CardBus Reader
IRQ12 Synaptics PS/2 port pointing device
IRQ13 Numeric data processor
IRQ14 1st EIDE device (hard disk)
IRQ15 2nd EIDE device (CD-ROM drive)
DMA Channel Assignment
DMA Channel Function (Hardware)
DRQ0 Reserved
DRQ1 IrDA Fast Infrared Port
DRQ2 Reserved
DRQ3 ECP printer port (LPT1)
DRQ4 DMA controller
DRQ5 Reserved
DRQ6 Reserved
DRQ7 Reserved
I/O Address Map
I/O Address Function