Chapter 1 27
220-22F Audio
240-24F Audio (optional)
278-27F Parallel port 3
2E8-2EF COM4
2F8-2FF COM2 or FIR (optional)
376, 3F6 ALi M5229 PCI BusMaster IDE controller
3BC-3BF Parallel port 1
3B0-3BB
3C0-3DF
Video Controller
3F0h-3F7 Standard Floppy Disk Controller
3E8-3EF ALi fast IR contr oller
3F0-3F5, 3F7 Floppy disk controller
3F8-3FF COM1
480-48F, 4D6 DMA controller-1
4D0-4D1
CF8-CFF
PCI configuration regis ter
IRQ Assignment Map
Interrupt Channel Function
IRQ0 System timer
IRQ1 Standard 101/102-key or Microsoft natural keyboard.
IRQ2 Programmable Interrupt Controller
IRQ3 IrDA Fast Interrupt Port
IRQ4 COM1
IRQ5 Reserve
IRQ6 Floppy Disk Control ler
IRQ7 Printer Port (LPT1)
IRQ8 System CMOS/real time clock
IRQ9 SCI IRQ used by ACPI bus
IRQ10 ALi audio accelerator WDM driver
Lucent Technologies SoftModem AMR
1394 host controller
IRQ11 PCMCIA CardBus Controller
O2Micro Smart CardBus reade r
Trident CyberBlade Ai1 AGP
ALi PCI to USB Open Host Controller
IRQ12 PS2 pointing device
IRQ13 Numeric data processor
IRQ14 1st EIDE device
IRQ15 2nd EIDE device
DMA Channel Assignment
DMA Channel Function
DRQ0 Not Used
DRQ1 Not Used
DRQ2 Floppy Disk Controller
I/O Address Map
I/O Address Function