Intel MI810 user manual B. Interrupt Request Lines IRQ, Level, Function

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B. Interrupt Request Lines (IRQ)

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

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MI810 User’s Manual

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Contents Intel Atom 945GSE Mini-ITX Motherboard VersionMI810 USER’S MANUALAcknowledgments Installations BIOS SetupDrivers Installation IntroductionThis page is intentionally left blank Introduction Product DescriptionINTRODUCTION Checklist Your MI810 package should include the items listed belowThe MI810 Intel Atom Mini-ITX motherboard This User’s Manual 1 CD containing chipset drivers and flash memory utilityMI810 Specifications Board Dimensions INTRODUCTION Installations INSTALLATIONSSetting the Jumpers Connectors on MI810Installing the Memory Installing and Removing Memory ModulesLock DDR2 Module LockSetting the Jumpers Jumper Locations on MI810 Jumpers on MI810Page JP1 LCD Panel Power Selection LCD Panel PowerSignal Name JP2 ATX/AT Mode SelectJP6 COM4 RS232 +5V / +12V Power Setting JP7 COM3 RS232 +5V / +12V Power SettingJP8 Clear CMOS Setting SettingConnectors on MI810 Connector Locations on MI810 INSTALLATIONS FAN1 CPU Fan Power Connector FAN2 System Fan Power ConnectorCN2 PS/2 Keyboard and PS/2 Mouse Connectors CN1 DC Jack DC in, 12V orCN3 VGA and DVI Connectors CN7 Audio ConnectorCN4 USB5/6 Ports CN5 10/100 RJ-45 and USB1/2 Ports CN6 GbE RJ-45 and USB3/4 PortsCN8, CN9 Serial ATA Connectors CN10 Mini PCI- Ex1 Connector bottom sideCN11 Compact Flash Connector bottom side PCI1 PCI Slot supports 2 Master PCIE1 PCIE x1 Slot IDE1 IDE ConnectorJ1, J4 LCD Backlight Connector J2 HDD Power Connector Output Max. 2AJ3 ATX12V Connector J5 Power LED ConnectorSignal Name RS-232 J8, J10 LVDS Connectors 1st channel, 2nd channelJ6 Digital I/O J7 COM1, COM2 Serial PortsJ9 System Function Connector J12 Wake On LAN ConnectorJ11 COM3, COM4 Serial Ports J13 USB7/8 Port Pin HeaderSignal Name Pin # J17 Smart Battery ConnectorJ18 SPDIF Out Connector J14 Audio Front HeaderThis page is intentionally left blank BIOS Setup BIOS Introduction BIOS SetupPress DEL to Enter Setup Standard CMOS Features Standard CMOS Setup DateTime IDE Channel Master/SlaveCapacity CYLSHalt On Advanced BIOS Features CPU FeatureHard Disk Boot Priority Virus WarningQuick Power On Self Test First/Second/Third Boot DeviceBoot Other Device Boot Up Floppy SeekTypematic Delay Msec Security OptionAPIC Mode MPS Version Control for OSAdvanced Chipset Features DRAM Timing SelectableCAS Latency Time DRAM RAS# to CAS# DelaySystem BIOS Cacheable Video BIOS CacheableOn-Chip VGA Setting Precharge Delay tRASPanel Scaling Panel NumberThe default setting is Auto. The options available include On and Off Integrated Peripherals OnChip IDE DeviceOnboard Device SuperIO DeviceIDE DMA Transfer Access On-chip Primary PCI IDE EnabledIDE HDD Block Mode OnChip Primary/Secondary PCI IDEOn-Chip Serial ATA Setting Power ON FunctionKB Power ON Password Hot Key Power ONOnboard Serial Port PWRON After PWR-FailSerial Port 3F8/IRQ4Power Management Setup RUN VGABIOS if S3 ResumePower Management ACPI FunctionHDD Power Down Power On by RingVideo Off Method Video Off In SuspendResume by Alarm Reload Global Timer EventsPNP/PCI Configurations Reset Configuration DataInit Display First Resources Controlled byPC Health Status CPU Warning TemperatureTemperatures/Voltages Smart Fan TemperatureFrequency/Voltage Control Auto Detect PCI ClkSpread Spectrum Modulated CPU Host / SRC PCI ClockLoad Fail-Safe Defaults Load Optimized DefaultsSet Supervisor Password Save & Exit SetupLoad Fail-Safe Defaults Drivers Installation IMPORTANT NOTEIntel Chipset Software Installation Utility 2. Click IntelR Chipset Software Installation Utility3. When the Welcome screen to the IntelR Chipset Software Installation Utility appears, click Next to continue VGA Drivers Installation 6. Setup is now complete. Click Finish to restart the computer Realtek High Definition Audio Driver Installation Audio Driver2. Click Realtek Audio Driver and then Realtek High Definition Codec LAN Drivers Installation 2. In the next screen, click Install Drivers and Software7. When the InstallShield Wizard has been completed, click Finish Appendix A. I/O Port Address MapAddress Device DescriptionB. Interrupt Request Lines IRQ LevelC. Watchdog Timer Configuration SAMPLE CODEswitch to logic device =========================================================================== #include W627EHF.H 0xAA