Intel IB868 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 which 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

278 - 27F

Parallel Port #2(LPT2)

2F8h - 2FFh

Serial Port #2(COM2)

2B0 - 2DF

Graphics adapter Controller

378h - 3FFh

Parallel Port #1(LPT1)

360 - 36F

Network Ports

3B0 - 3BF

Monochrome & Printer adapter

3C0 - 3CF

EGA adapter

3D0 - 3DF

CGA adapter

3F0h - 3F7h

Floppy Disk Controller

3F8h - 3FFh

Serial Port #1(COM1)

IB868 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 FSB SpecificationsBoard Dimensions Installations Installing the CPU Installing and Removing Memory Modules Installing the MemorySetting the Jumpers Jumper Locations on IB868 JP6 CPU Front Side Bus Frequency Setting JP2 Panel Voltage SettingJP3 Clear Cmos Contents JP5 VGA Signal SelectConnectors on IB868 J1 ATX 12V/+12V Power Connector J2 System Function Connector FDD1 Floppy Drive Connector IDE1, IDE2 Eide ConnectorsJ1 ATX 12V/+12V Power Connector CN1, CN2 Serial ATA Sata ConnectorsFAN1 CPU Fan Power Connector FAN2, FAN3 System Fan Power ConnectorATX Power on Switch Pins 7 J2 System Function ConnectorJ4, J5 Lvds Connectors 2nd channel, 1st channel Reset Switch Pins 9J7, J8 , J9 USB Connectors J6 Panel Inverter Power ConnectorJ10, J12 COM1 and COM2 Serial Ports Connector J13 Digital input / output Connector J11 Parallel Port ConnectorJ14 IrDA Connector J19 PS/2 Keyboard and Mouse Connector J15 Wake On LAN ConnectorJ16, J17 External PS/2 Mouse and Keyboard Connector J18 CD-In Audio ConnectorJ23 VGA CRT Connector J20 Primary RJ45 ConnectorJ21 Gigabit LAN RJ45 Connector J22 External Audio ConnectorBios Setup Bios Setup Bios IntroductionPhoenix AwardBIOS Cmos Setup Utility Date Standard Cmos SetupIDE Channel Master/Slave TimeDrive a / Drive B Halt On VideoVirus Warning Advanced Bios FeaturesCPU Feature Hard Disk Boot PriorityBoot Up Floppy Seek Quick Power On Self TestFirst/Second/Third Boot Device Boot Other DeviceMPS Version Control for OS Typematic Delay MsecApic Mode Security OptionCAS Latency Time Advanced Chipset FeaturesDram RAS# to CAS# Delay Dram Timing SelectableOn-Chip VGA Setting Precharge Delay tRASSystem Bios Cacheable Video Bios CacheableLAN PXE Option ROM Panel ScalingPanel Number Onboard PCI-E LANOnChip IDE Device Integrated PeripheralsOnChip Primary/Secondary PCI IDE IDE HDD Block ModeIDE DMA Transfer Access On-chip Primary PCI IDE EnabledHot Key Power on On-Chip Serial ATA SettingPower on Function KB Power on PasswordPwron After PWR-Fail Power Management SetupUart Mode Select Onboard Serial PortHDD Power Down RUN Vgabios if S3 ResumePower Management Suspend ModeSoft-Off by Pwrbtn Power On by RingResume by Alarm Reload Global Timer EventsPNP/PCI Configurations PC Health Status Auto Detect PCI Clk Frequency/Voltage ControlSpread Spectrum Modulated Save & Exit Setup Load Fail-Safe DefaultsLoad Optimized Defaults Set Supervisor PasswordDrivers Installation Click IntelR Chipset Software Installation Utility Intel Chipset Software Installation UtilityDrivers Installation Click IntelR 915GMChipset Family Graphics Driver VGA Drivers InstallationImportant Note Click Realtek AC97 Codec Audio Driver AC97 Codec Audio Driver InstallationClick Install Base Software to continue LAN Drivers InstallationDrivers Installation O Port Address Map AppendixLevel Function Interrupt Request Lines IRQSample Code Watchdog Timer ConfigurationAppendix OutportbW627EHFINDEXPORT, W627EHFLOCK W627EHFLOCK