IRQ Assignment Map

Interrupt Channel

Function

 

 

IRQ0

System timer

 

 

IRQ1

Keyboard

 

 

IRQ2

Cascade

 

 

IRQ3

FIR (Serial port)

 

 

IRQ4

Reserved for Serial port 2

 

 

IRQ5

Reserved for PCMCIA R2 card

 

 

IRQ6

COM1 (Serial port) for Digitizer

 

 

IRQ7

LPT (Parallel port)

 

 

IRQ8

CMOS/RTC

 

 

IRQ9

SCI IRQ used by ACPI bus

 

 

IRQ10

SMBus (PIRQB#), Audio (PIRQB#), Modem (PIRQB#), LAN (PIRQE#),

 

CardBus (PIRQE#), IEEE1394 (PIRQF#),

 

 

IRQ11

USB1.1 (PIRQA#, PIRQC#, PIRQD#), VGA (PIRQA#), USB2.0 (PIRQH#),

 

MiniPCI (PIRQG#)

 

 

IRQ12

PS/2 device

 

 

IRQ13

Math processor

 

 

IRQ14

IDE primary channel

 

 

IRQ15

None

 

 

DMA Channel Assignment

DMA Channel

Function

 

 

DRQ0

Reserved

 

 

DRQ1

Reserved

 

 

DRQ2

Reserved

 

 

DRQ3

IrDA FIR controller (DMA:1,3)

 

 

DRQ4

DMA controller

 

 

DRQ5

Reserved

 

 

DRQ6

Reserved

 

 

DRQ7

Reserved

 

 

30

TravelMate C110

Page 38
Image 38
Acer C110 manual IRQ Assignment Map, DMA Channel Assignment, Interrupt Channel Function, DMA Channel Function