275
System
Resources
This appendix lists the IRQ levels, DMA channels, and I/O port
addresses.
IRQ level assignments
The direct line to the CPU is called an Interrupt ReQuest (IRQ)
level or channel. You’ll hear both terms used by technical experts.
They mean the same thing. The following table lists the default
IRQ level assignments for the computer:
IRQ
Use
Notes
0
Timer
1
Keyboard
2
PIC #2
3
Modem
COM port, modem
4
COM
COM port, modem
5
Sound system
COM port, printer, modem, ECP, MPU
*
Содержание 8100 series
Страница 17: ...xvii ...
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Страница 55: ...Part I Getting to Know Your Computer Getting Started When and how to turn off the computer 29 ...
Страница 111: ...Part I Getting to Know Your Computer Learning the Basics Caring for your computer 85 ...
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Страница 185: ...Part II Technical Reference Toshiba Utilities Expansion device properties 159 ...
Страница 219: ...Part II Technical Reference Keeping Your Files Safe Hard disk drive passwords Windows NT 193 ...
Страница 277: ...Part II Technical Reference Troubleshooting Guide Toshiba s worldwide offices 251 ...
Страница 278: ......
Страница 285: ...Part III Appendixes Hot Keys 259 ...
Страница 286: ...Appendix B Built in features 261 Optional accessories and devices 268 Specifications 270 ...
Страница 298: ...Appendix C ...
Страница 300: ...Appendix D IRQ level assignments 275 DMA channel assignments 277 Input output port address assignments 278 ...
Страница 308: ...Appendix E ...
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Страница 342: ...Part III Appendixes Glossary 316 ...