Intel MI910F user manual Interrupt Request Lines IRQ, Level Function

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APPENDIX

B. Interrupt Request Lines (IRQ)

Peripheral devices use interrupt request lines to notify CPU for the service required. The following table shows the IRQ used by the devices on board.

 

Level

 

 

Function

 

 

IRQ0

 

System Timer Output

 

 

IRQ1

 

 

Keyboard

 

 

IRQ2

 

Interrupt Cascade

 

 

IRQ3

 

Serial Port #2

 

 

IRQ4

 

Serial Port #1

 

 

IRQ5

 

Reserved

 

 

IRQ6

 

Floppy Disk Controller

 

 

IRQ7

 

Parallel Port #1

 

 

IRQ8

 

Real Time Clock

 

 

IRQ9

 

Reserved

 

 

IRQ10

 

Reserved

 

 

IRQ11

 

Reserved

 

 

IRQ12

 

PS/2 Mouse

 

 

IRQ13

 

80287

 

 

IRQ14

 

Primary IDE

 

 

IRQ15

 

Secondary IDE

 

58

MI910 User’s Manual

Image 62
Contents Intel CoreTM 2 Duo Celeron GM965 VersionAcknowledgments Table of Contents MI910 Mini ITX Motherboard Introduction Product DescriptionChecklist MI910 Specifications CPU FSBBoard Dimensions Installations Installing the CPU Installing the Memory LockSetting the Jumpers Jumper Locations on MI910 JP9 PCI/PCIE Riser Card Selection JP5 LCD Panel Power SelectionJBAT1 Clear Cmos Setting JP8 CompactFlash Slave/Master SelectionConnectors on MI910 Connector Locations on MI910 MI910 Solder Side CN1 PS/2 Keyboard and PS/2 Mouse Connectors CN2, CN3 COM1 and VGA ConnectorFAN2 CPU Fan Power Connector IDE1 IDE Connector FDD1 Floppy Drive ConnectorATX1 ATX Power Supply Connector J1 Fpanel System Function ConnectorPower LED Pins 11 Pin # Signal Name FUSB1 USB0/USB1 Connector COM2J7 Mini PCI Connector CN8, CN9 Sata Connectors J3, J4 Lvds Connectors 1st channel, 2nd channelJ5 LCD Backlight Connector J2 COM2 Serial PortJ12 Front Audio Connector J10 SPI Flash Connector factory use onlyJ11 1394 Connector J8 Digital I/OJ14 IrDA Connector SDVOCCLK+ SdvocclkHeaders and Connectors on MI910 Daughter Cards JP4RED ID391 J2 DVI Connector This page is intentionally left blank Bios Setup Bios Introduction Bios SetupPhoenix AwardBIOS Cmos Setup Utility Standard Cmos Setup DateDrive a / Drive B TimeIDE Channel Master/Slave Video Halt OnHard Disk Boot Priority Advanced Bios FeaturesCPU Feature Virus WarningBoot Other Device Quick Power On Self TestFirst/Second/Third Boot Device Boot Up Floppy SeekSecurity Option Typematic Delay MsecApic Mode MPS Version Control for OSMemory Hole At 15M-16M Advanced Chipset FeaturesSystem Bios Cacheable Panel Number On-Chip VGA SettingPanel Scaling Integrated Peripherals OnChip IDE DeviceOn-chip Primary/Secondary PCI IDE IDE HDD Block ModeOn-chip Primary PCI IDE Enabled IDE Primary/Secondary Master/Slave PIOKB Power on Password On-Chip Serial ATA SettingPower on Function Hot Key Power onPwron After PWR-Fail Uart Mode SelectOnboard Serial Port USB 1.0 ControllerPower Management Power Management SetupRUN Vgabios if S3 Resume Acpi FunctionPower On by Ring Suspend ModeHDD Power Down Video Off MethodResume by Alarm Reload Global Timer EventsPNP/PCI Configurations Shutdown Temperature CPU Warning TemperatureTemperatures/Voltages 1st 2st Smart Fan TemperatureSpread Spectrum Modulated Frequency/Voltage ControlAuto Detect PCI Clk Set Supervisor Password Load Fail-Safe DefaultsLoad Optimized Defaults Save & Exit SetupDrivers Installation Intel Chipset Software Installation Utility Click IntelR Chipset Software Installation UtilityDrivers Installation VGA Drivers Installation Click IntelR GM965Chipset Family Graphics DriverImportant Note AC97 Codec Audio Driver Installation Click Realtek AC97 Codec Audio DriverLAN Drivers Installation Click Install Base Software to continueDriver Installation Appendix O Port Address MapInterrupt Request Lines IRQ Level FunctionWatchdog Timer Configuration Sample CodeAppendix OutportbW627EHFINDEXPORT, W627EHFLOCK W627EHFLOCK