Intel MB893 user manual Appendix, O Port Address Map

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APPENDIX

Appendix

A. I/O Port Address Map

Each peripheral device in the system is assigned a set of I/O port addresses that also becomes the identity of the device. The following table lists the I/O port addresses used.

Address	Device Description
000h - 01Fh	DMA Controller #1
020h - 03Fh	Interrupt Controller #1
040h - 05Fh	Timer
060h - 06Fh	Keyboard Controller
070h - 07Fh	Real Time Clock, NMI
080h - 09Fh	DMA Page Register
0A0h - 0BFh	Interrupt Controller #2
0C0h - 0DFh	DMA Controller #2
0F0h	Clear Math Coprocessor Busy Signal
0F1h	Reset Math Coprocessor
1F0h - 1F7h	IDE Interface
278h - 27Fh	Parallel Port #2(LPT2)
2F8h - 2FFh	Serial Port #2(COM2)
2B0h - 2DFh	Graphics adapter Controller
378h - 3FFh	Parallel Port #1(LPT1)
360h - 36Fh	Network Ports
3B0h - 3BFh	Monochrome & Printer adapter
3C0h - 3CFh	EGA adapter
3D0h - 3DFh	CGA adapter
3F0h - 3F7h	Floppy Disk Controller
3F8h - 3FFh	Serial Port #1(COM1)

MB893 User’s Manual

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Contents Version USER’S ManualAcknowledgments Table of Contents MB893 Server Motherboard Introduction ChecklistProduct Description IDE SpecificationsBoard Dimensions Installations Installing the CPU Installing the Memory ATX Power InstallationSetting the Jumpers Jumper Locations on MB893 JP2 Compact Flash Master/Slave Select JP3 Clear Cmos ContentsJP4 CN7 & CN10 LAN By-pass Function Setting JP5 COM2 J6 Tx/Rx Signal Setting ReservedJP7 Connectors on MB893 Connector Locations on MB893 ATX12V1 ATX 12V Power Connector ATX1 ATX Power Supply ConnectorCN1 Front Side Bridge Board to ID370 SYSFAN1 System Fan Power ConnectorCN4 Mini PCI Socket CN8, CN9 Sata ConnectorCN11 Dual Port USB Connector J3 USB Connector CN12 COM1 ConnectorJ8 PS/2 Keyboard & Mouse Connectors J4 Parallel Port Connector ReservedJ5, J6 COM2, COM3 Connectors IDE1 Primary IDE Connectors 40-pin 2.54mm FDD1 Floppy Drive Connector ReservedIDE2 Primary IDE Connectors 44-pin 2.0mm Sample Code Watchdog Timer ConfigurationCall LockChip ret EnableAndSetWatchdog Endp Mov dx, 2Eh mov al, 0Aah Out dx, al ret This page is intentionally left blank 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 VideoVirus Warning Advanced Bios FeaturesHard Disk Boot Priority Boot Up Floppy Seek Quick Power On Self TestFirst/Second/Third Boot Device Boot Other DeviceApic Mode Boot Up NumLock StatusTypematic Rate Setting Typematic Delay MsecBaud Rate Agent After BootOS Select for Dram 64MB Console RedirectionAdvanced Chipset Features On-Chip Frame Buffer Size Memory System Bios CacheableSystem Memory Frequency Memory Hole At 15M-16MIDE Integrated PeripheralsOnChip Primary/Secondary PCI IDE IDE HDD Block ModeIDE DMA Transfer Access Sata ModeHot Key Power on Pata IDE ModePower on Function KB Power on PasswordPwron After PWR-Fail Uart Mode SelectOnboard FDC Controller Onboard Serial/Parallel PortVideo Off Method Power Management SetupPower Management Acpi FunctionResume by Alarm Suspend ModeHDD Power Down Power On by RingReload Global Timer Events PNP/PCI Configurations PC Health Status CPU Warning TemperatureShutdown Temperature Temperatures/Fan Speeds/VoltagesThird phase Smart FAN functionality 1st Smart Fan II Temperature SYSFAN1 connector2nd Smart Fan II Temperature CPUFAN1 / CPUFAN2 Level2 TemperatureSpread Spectrum Frequency/Voltage ControlCPU Clock Ratio Auto Detect PCI ClkSave & Exit Setup Load Fail-Safe DefaultsLoad Setup Defaults Set Supervisor/User PasswordDrivers Installation Intel 915G Chipset Software Intallation Utility Intel 915G Chipset Graphics Driver Marvell 88E8053 LAN Drivers Installation Intel PRO LAN Drivers Installation This page is intentionally left blank O Port Address Map AppendixLevel Function Interrupt Request Lines IRQ