7DEOH,54/LQH￿￿￿￿8VHG,QWHUUXSW￿$YDLODEOH$VVLJQPHQWVFRQWLQXHG

IRQ12

Used by the PS/2 mouse port unless mouse is disabled in

 

System Setup program

IRQ13

Used by the math coprocessor

IRQ14

Available

$VVLJQPHQWV

7DEOHIRQ15'5(4￿￿￿￿/LQH

 

Used'5(48VHG%\by/LQHembedded￿$YDLODEOHserver-management functions

'0$ &KDQQHO￿$VVLJQ

Table 1-9 lists the default DMA channel assignments.

DREQ0

Not required for PCI-only system

DREQ1

Not required for PCI-only system

DREQ2

Generated by super I/O controller to initiate DMA cycle for

 

attached diskette drive

DREQ3

Not required for PCI-only system

DREQ4

Generated by bus controller chip to activate second DMA

 

controller

DREQ5

Not required for PCI-only system

DREQ6

Not required for PCI-only system

DREQ7

Not required for PCI-only system

 

 

System Overview 1-23

Page 31
Image 31
Dell 6350 manual $Vvljqphqwv, $ &Kdqqho$Vvljq