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36 Chapter 1
040-043 Timer 1
060, 064 Keyboard controller 87570 chip select
061 System speaker
040B DMA controller-1
061 System speaker
070-073 Real-time clock and NMI mask
080-08F DMA page register
0A0-0A1 Interrupt controller-2
0C0-0DF DMA controller-2
0F0-0FF Numeric data processor
66, 62 Power management controller
170-177 2nd EIDE device (CD-ROM) select
1F0-1F7 1st EIDE device (hard drive) select
378, 37F Parallel port 1
3B0-3BB
3C0-3DF
Video Controller
3F0h-3F7 Standard Floppy Disk Controller
3F0-3F7 Floppy disk controller
480-48F, 4D6 DMA controller-1
CF8-CFF PCI configuration register
IRQ Assignment Map
Interrupt Channel Function(Hardware)
IRQ00 System timer
IRQ01 Keyboard
IRQ06 Floppy
IRQ08 CMOS/RTC
IRQ09 SCI IRQ used by ACPI bus
IRQ10 Audio, Modem,
IRQ11 USB, CardBus controller, LAN
IRQ12 Alps 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 Reserved
DRQ2 Floppy
DRQ3 ECP printer port (LPT1)
DRQ4 DMA controller
DRQ5 Reserved
DRQ6 Reserved
DRQ7 Reserved
I/O Address Map
I/O Address Function