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Dma usage – Gateway 7250R User Manual

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120

System Specifications

DMA usage

The following table lists the direct memory access (DMA) channels that the
system typically uses and which ones are available for use by add-in devices.

IRQ6

INT6

Diskette port

IRQ7

INT7

Parallel port

IRQ8_L

INT8

RTC interrupt

IRQ9

INT9

Signal control interrupt (SCI) used by ACPI-compliant operating
system

IRQ10

INT10

IRQ11

INT11

IRQ12

INT12

Mouse interrupt

IRQ13

INT13

Co-processor interrupt

IRQ14

INT14

Compatibility IDE interrupt from primary channel IDE devices 0 and 1

IRQ15

INT15

SMI_L

System management interrupt - general purpose indicator sourced
through the PID to the processors

DMA

Resource

0

Cascade

1

Available

2

Floppy Controller

3

Available

4

Redirect Cascade

5

Available

6

Available

7

Available

Interrupt

I/O APIC
Level

Description

8506162.book Page 120 Wednesday, May 10, 2000 10:21 AM