System Specifications
139
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.
IRQ5
INT5
Parallel port II
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
8508366.book Page 139 Tuesday, October 23, 2001 11:29 AM
Summary of Contents for 7400
Page 6: ...vi 8508366 book Page vi Tuesday October 23 2001 11 29 AM ...
Page 22: ...14 System Features 8508366 book Page 14 Tuesday October 23 2001 11 29 AM ...
Page 98: ...90 Using the BIOS Setup Utility 8508366 book Page 90 Tuesday October 23 2001 11 29 AM ...
Page 110: ...102 Managing Your System 8508366 book Page 102 Tuesday October 23 2001 11 29 AM ...
Page 132: ...124 Troubleshooting 8508366 book Page 124 Tuesday October 23 2001 11 29 AM ...
Page 148: ...140 System Specifications 8508366 book Page 140 Tuesday October 23 2001 11 29 AM ...
Page 156: ...148 Index 8508366 book Page 148 Tuesday October 23 2001 11 29 AM ...