28
Chapter 1
NOTE: IRQ settings may be changed by OS
IRQ Assignment Map
Interrupt Channel
Function
NMI
System errors
IRQ0
System timer
IRQ1
Keyboard
IRQ2
Programmable interrupt controller
IRQ3
Reserved
IRQ4
COM1
IRQ5
Reserved
IRQ6
Floppy
IRQ7
LPT1
IRQ8
Real time clock
IRQ9
SCI
IRQ10
Audio/Mode
IRQ11
USB/VGA/Cardbus
IRQ12
PS2 pointing device
IRQ13
Numeric data processor
IRQ14
1st IDE device (hard disk)
IRQ15
2nd EIDE device (CD-ROM drive)
DMA Channel Assignment
DMA Channel
Function
DRQ0
Not used
DRQ1
Not used
DRQ2
Flopp
DRQ3
Not used
DRQ4
DMA controller
DRQ5
Not used
DRQ6
Not used
DRQ7
Not used
Summary of Contents for TravelMate 220 series
Page 6: ...VI ...
Page 51: ...42 Chapter 2 ...
Page 105: ...96 Chapter 5 ...
Page 107: ...98 Chapter 6 Exploded Diagram ...
Page 117: ...108 Chapter 6 ...
Page 119: ...110 Appendix A ...
Page 123: ...114 Appendix C ...
Page 127: ...118 Index ...