Acer TravelMate 620 Service Manual page 38

I/O Address Map
I/O Address
3BC-3BE
3B0-3BB
3C0-3DF
3F0h-3F7
3E8-3EF
3F0-3F7
3F8-3FF
480-48F, 4D6
4D0-4D1
CF8-CFF
IRQ Assignment Map
Interrupt Channel
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
DMA Channel Assignment
DMA Channel
DRQ0
DRQ1
DRQ2
DRQ3
DRQ4
DRQ5
DRQ6
DRQ7
30
Paraller port 1
Video Controller
Standard Floppy Disk Controller
COM3 or LT Win modem (optional)
Floppy disk controller
COM1
DMA controller-1
PCI configuration register
System timer
Keyboard
Cascade
IR
COM1 (Serial port)
Reserved for R2 card
Floppy
LPT (Parallel port)
CMOS/RTC
SCI IRQ used by ACPI bus
Audio (PIRQB#), Modem (PIRQB#), SMBUS controller (PIRQB#), IEEE 1394
(PIRQ#), 802.11b (PIRQE#), LAN (PIRQTE#)
VGA (PIRQA#), USB (PIRQA#, PIRQC#, INTD#), CardBus controller
(PIRQB#, PIRQB#)
PS/2 device
Math processor
1st EIDE device (hard disk)
2nd EIDE device (CD-ROM drive)
Reserved
Reserved
Floppy
Reserved
DMA controller
Reserved
Reserved
Reserved
Function
Function
Function
Chapter 1