Intel MAT-880 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

MAT-880 User’s Manual

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Contents Version USER’S ManualAcknowledgments Table of Contents This page is intentionally left blank Product Description IntroductionChecklist CPU Type MAT-880 SpecificationsBoard Dimensions Installations Installing the CPU Supported Ddrm Dimm Configurations Installing the MemoryInstalling and Removing Memory Modules LockSetting the Jumpers Jumper Locations on MAT-880 JP1 Lvds Panel Power Select Configuring the CPU FrequencyJP2 Gigabit LAN Enable/Disable JP3 Compact Flash Slave/MasterJP8 COM1 RS232 +5V / +12V Power Setting JP4 Clear Cmos ContentsJP10 COM3 RS232 +5V / +12V Power Setting JP9 COM2 RS232 +5V / +12V Power SettingJP11 COM4 RS232 +5V / +12V Power Setting JP12 ATX / AT Power SelectJP16 JP16 Processor Operating FrequencyConnectors on MAT-880 Connector Locations on MAT-880 FAN3 CPU Fan Power Connector FAN1, FAN2 System Fan Power ConnectorIDE1, IDE2 Eide Connectors IDE1 Primary IDE Connector Signal Name Pin #CN2 AT H2/+5V Power Connector IDE2 Secondary IDE Connector Signal Name Pin #J1 CD-In Audio Connector CN3 Digital 4-in 4-out I/O Connector J2 External Audio ConnectorSignal Name Pin J3 Wake On LAN ConnectorSpeaker Pins 1 J5 System Function ConnectorPower LED Pins ATX Power on Switch Pins 5J6 Tmds Connector Reset Switch Pins 7Hard Disk Drive LED Connector Pins 8 Pin Signal Name J7 10/100Mbit Ethernet ConnectorJ8 VGA CRT Connector Pin Signal Name +5VJ15, J16 USB Connectors J14 Panel Inverter Power ConnectorJ18 Serial Ports J17 Parallel Port ConnectorPin # Signal Name RS-232 R2-422 J20 IrDA ConnectorJ21 ATX Power Supply Connector J23 PS/2 Keyboard/Mouse Connector Sample Code Watchdog Timer ConfigurationMov cl, 30h Call WriteReg Watchdog enabled Call LockChip ret UnlockChip Proc Near mov dx, 4Eh mov al, 0AAh out dx, al ret Bios Setup Bios Setup Bios IntroductionPhoenix AwardBIOS Cmos Setup Utility Date Standard Cmos SetupDrive a / Drive B TimeIDE Primary HDDs / IDE Secondary HDDs Halt On VideoCPU Feature Advanced Bios FeaturesQuick Power On Self Test Virus WarningBoot Other Device First/Second/Third Boot DeviceBoot Up Floppy Seek Boot Up NumLock StatusSecurity Option Apic ModeMPS Version Control for OS OS Select for Dram 64MBActive to Precharge Delay Advanced Chipset FeaturesDram RAS# to CAS# Delay Dram Timing SelectableSystem Bios Cacheable Dram Data Integrity ModeVideo Bios Cacheable Delayed TransactionAGP Aperture Size Boot DisplayOn-Chip VGA On-Chip Frame Buffer SizeIntegrated Peripherals Onboard Sata chip Mode IDE HDD Block ModeOnChip Primary/Secondary PCI IDE IDE Primary/Secondary Master/Slave PIOUSB 2.0 Controller USB ControllerUSB Keyboard Support USB Mouse SupportPwron After PWR-Fail Uart Mode SelectParallel Port Mode Power Supply Type Power Management SetupPower Management Acpi FunctionHDD Power Down Suspend ModeVideo Off Method Video Off In SuspendReload Global Timer Events Power On by RingResume by Alarm Reset Configuration Data PNP/PCI ConfigurationsResources Controlled by PCI/VGA Palette SnoopTemperatures/Voltages CPU Warning TemperatureShutdown Temperature PC Health StatusSpread Spectrum Modulated Frequency/Voltage ControlAuto Detect PCI Clk Load Optimized Defaults Load Fail-Safe DefaultsSet Supervisor Password Save & Exit SetupMAT-880User’s Manual Drivers Installation Intel Chipset Software Intallation Utility Click IntelR Chipset Software Installation UtilityDrivers Installation Click IntelR 855GME Chipset Family Graphics Driver VGA Drivers InstallationClick Realtek AC97 Codec Audio Driver AC97 Codec Audio Driver InstallationClick Install Base Software to continue Intel PRO LAN Drivers InstallationAddress Device Description O Port Address MapLevel Function Interrupt Request Lines IRQ