Interrupt Controllers, Priority Name Device | NEC Versa Series

Interrupt Controllers

Using interrupts, hardware can request software services. If non-Plug and Play software is being used, the interrupt may need to be moved for software application or driver compatibility. Some interrupts cannot be moved. Fifteen interrupts can be used with a cascade connection of 8259INTC x 2. The table shows default interrupt level assignments 0 through 15, in order of decreasing priority.

Priority	Name	Device
0	IRQ00	Internal Timer 1
1	IRQ01	Keyboard
2	IRQ02	PIC
3	IRQ08	Real-time Clock
4	IRQ09	SCI, CardBus, Modem, LAN
5	IRQ10	Video
6	IRQ11	Sound
7	IRQ12	Mouse
8	IRQ13	Coprocessor
9	IRQ14	IDE Controller
10	IRQ15	(Free)
11	IRQ03 or IRQ04	(Free) Infrared Port1
12	IRQ04 or IRQ03	(Free)
13	IRQ05 or IRQ09	USB
14	IRQ06	(Free)
15	IRQ07	(Free)

1When enabled.

B-8 Specifications

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NEC Versa Series manual Interrupt Controllers, Priority Name Device

Contents

Page Proprietary Notice and Liability Disclaimer Contents Iv Contents Using Peripheral Devices Vi Contents Solving System Problems Using This Guide Using This Guide Enter Text SetupViii Using This Guide Related Documents Introducing Your NEC Versa Introducing Your NEC Versa Before You Begin About Your NEC Versa Notebook Around the Front of the SystemNEC Versa notebook computer Operating Status LEDs LCD PanelBase Unit LCD panel and base unit Operating status LEDs Hard Disk DriveCaps Lock Num Lock Numeric Keys Control Keys Windows keys Keyboard PanelKeyboard Function Keys Fn-Pause break IR Port Front FeaturesFeatures on the front of the system Battery Charging LED Left-side features Around the Back of the SystemAround the Left Side of the System Around the Right Side of the System Right-side features Power Button Around the Bottom of the System Bottom features Getting Started Touchpad Right Button Left Primary Button NEC VersaGlide TouchpadVersaGlide Getting Started VersaGlide Tips Power Sources for Your NEC Versa NotebookMaking VersaGlide Adjustments AC Adapter AC adapter Connecting the AC Adapter Connecting the AC adapter Secondary Lithium-Ion battery Primary Battery PackSecondary Battery Pack Powering On Your System Low Battery Status Determining Battery Status Replacing the Battery Returning the Battery to its Normal StateExtending Battery Life Battery Handling Locating the battery bay release latch Inserting the battery Removing the battery Battery Precautions Charging the Battery System Batteries Precautions for Recharging the BatteryCmos Battery Optional Battery System Care Precautions for System Use Storage Requirements Routine Cleaning Using the Bios Setup Utility Introducing Bios Setup Entering Bios SetupUsing the Bios Setup Utility Bios Setup Main Menu How to Use SetupMain Setup Menu Key Function Setup Key Functions Menu Item Settings default is bold Main MenuMain Menu Items Main Menu Items Internal HDD Submenu Items PIO4/DMA2 Advanced Menu Advanced Menu Security Menu Items Security Menu Boot Menu Settings Exit MenuExit Menu Items Windows 2000 Power Options Properties Managing System Power Windows 2000 Power Schemes Power SchemesParameter Default Setting Alternate Settings Windows 2000 Alarms Windows 2000 Power MeterAlarms Windows 2000 Advanced Windows 2000 HibernateAdvanced Windows 2000 Power Management States Recognizing the Windows 2000 Power Management StatesWindows 2000 Power Management Behavior Obtaining the Bios Update Preparing the Bios Update Diskette Updating the Bios Performing the Bios Update Configuring the Switch Settings Accessing the DIP SwitchMemory module bay cover and screw Default switch settings Identifying the Switch Settings Using the Bios Setup Utility Using the Operating System and Utilities Using the Operating System and Utilities Microsoft Windows IntroductionWindows Taskbar Icons Current Speed Setting LongRun PropertiesTransmeta LongRun Utility LongRun utility status bar Product Recovery CD Guidelines for Using the Product Recovery CDProduct Recovery CD Options Full Disk Drive Restore Partition Only Restore Using the Operating System and Utilities Using the Operating System and Utilities Using the System Drives and Bays External floppy diskette drive and cable Using the System Drives and BaysEject Button USB Port Connector External Floppy Diskette Drive External Variable-Speed CD-ROM Drive Connecting the External Floppy Diskette DriveDisconnecting the External Floppy Diskette Drive Connecting the external floppy diskette drive External CD-ROM drive, left and front CD-ROM drive cable External CD-ROM drive, right and rear Connecting the CD-ROM drive Using the CD-ROM Drive with your NEC Versa Notebook Inserting a CD Opening the CD-ROM drive cover CD Care Disconnecting the CD-ROM Drive Memory Modules Hard Disk Drive Memory Module Bay Cover Screw Installing a Memory ModuleLocating the memory module bay Removing the screw and bay cover Memory module features Installing a memory moduleConnectors Removing an installed memory module Communicating with Your NEC Versa Communication Cards PC CardsType II Cards Type II Extended Cards Storage Cards Other CardsPC Card Slots Inserting a PC Card Removing a PC CardInserting a PC Card Connecting the Mini PCI LAN Connecting the Mini PCI LANMini PCI LAN Connecting the Internal Modem Connecting the RJ-11 telephone cableInternal Modem IR Port Internet Connections Enabling/Disabling the IR Port in Windows Using the IR Port Traveling Tips Preparing for Travel Packing for TravelTraveling Tips Getting Through Customs Using Power Connections Connecting to the Internet Connecting Using a ModemConnecting Using a LAN Traveling Tips Using Peripheral Devices Connecting a monitor Using External DevicesExternal Monitor Audio ports External Audio Options Connecting USB devices USB Connector USB PortUSB Devices Using Multimedia Using Multimedia AudioRecording Microphone MixingPlaying Back Video Multimedia Applications Using Animation Files Solving System Problems ProblemResolution Problem ChecklistTroubleshooting Solving System Problems Problem Resolution Start-Up Problems Post Error Messages Post Error MessagesMessage Resolution Post Error Messages Number Beeps Error Description Beep CodesBeep Codes If You Need Assistance Getting Service and Support Service and Support Contact Information Getting Service and SupportService Contact Information Web Site FTP SiteHttp//support.neccomp.com Support Services Email/Fax to Support ServicesTech-support@nec-computers.com Setting Up a Healthy Work Environment Making Your Computer Work for You Setting Up a Healthy Work Environment Arrange Your Equipment Adjust Your ChairAdjust Your Input Devices Setting Up a Healthy Work Environment A-3 Adjust Your Screen or Monitor Setting Up a Healthy Work Environment A-5 Vary Your WorkdayPre-Existing Conditions Psychosocial Factors Setting Up a Healthy Work Environment Specifications System Components Specifications Input/Output I/O Facilities Specifications B-3 Keyboard 24X-Maximum/10x Minimum Variable Speed CD-ROM Drive Specifications B-5 Dimensions Memory Space Size Function Specifications B-7Memory Map System Memory Map Priority Name Device Interrupt Controllers Frequently Asked Questions Frequently Asked Questions External MouseDisplay Diskette Drive Frequently Asked Questions C-3 What happens if I leave a diskette in my diskette drive? Booting Power ManagementFrequently Asked Questions C-5 How do I bring my system out of Standby mode? Miscellaneous Frequently Asked Questions C-7 How do I find help in a Windows application? Frequently Asked Questions C-9 Im having a problem using the IR port. What can I do? Glossary Glossary Bus BootBits per second Board Digital sound Cold bootCursor Digital audio Hard disk Extended RAMFM synthesis Function key Kilobyte InfraredInterface Interrupt Multimedia MicroprocessorMode Modem Parameter PasswordParallel interface Parallel printer RS-232C ResetPrompt Read System board Standby modeSerial printer Software Warm swap Warm bootVersaGlide Volatile memory Zoomed Video Index-1 Index Index-2 Index-3 Index-4 USB Regulatory Statements Regulatory StatementsFCC Statement for United States Only Canadian Department of Communications Compliance Statement Mini-PCI FCC Registration Numbers Battery ReplacementBattery and LCD Panel Disposal European Community Directive Conformance Statement Declaration of Conformity