Intel MB865 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

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)

MB865 User’s Manual

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Contents Version USER’S ManualAcknowledgments Table of Contents This page is intentionally left blank Product Description IntroductionChecklist ATX SpecificationsBoard Dimensions Installations ATX Power Installation Installing the CPUInstalling the Memory Supported DDR Dimm ConfigurationsLock Setting the Jumpers Jumper Locations on MB865 JP4 Clear Cmos Contents Configuring the CPU FrequencyJP5 JP5 10/100Mb LAN Enable/DisableConnectors on MB865 Connector Locations on MB865 FDD1 Floppy Drive Connector ATX1 ATX Power Supply ConnectorIDE1 Primary IDE Connector Signal Name Pin # IDE1, IDE2 Eide ConnectorsCN1 PS/2 Keyboard and PS/2 Mouse Connectors FAN1 CPU Fan Power ConnectorFAN2 Chassis Fan Power Connector FAN3 System Fan Power ConnectorCN2, J1, J10, J13 Serial Ports CN4 VGA CRT Connector CN3 Parallel Port ConnectorCN5 USB and 10/100Mb LAN RJ45 Connectors CN6 USB and Gigabit LAN RJ45 ConnectorsCN7 Line Out, Line In, Mic Connector J2 Digital 4-in 4-out I/O Connector J4 IrDA ConnectorJ5 ATX 12V Power Connector J14 Wake on LAN Connector J9 CD-In Audio ConnectorJ11 External Audio Connector J12 USB ConnectorSpeaker Pins 1 J15 System Function ConnectorSMI/Hardware Switch Pins 6 Sample Code Watchdog Timer ConfigurationNone Mov dx, 2Eh mov al, 0AAh out dx, al ret Bios Setup Bios Introduction Bios Setup Phoenix AwardBIOS Cmos Setup Utility Date Standard Cmos SetupTime IDE Primary HDDs / IDE Secondary HDDsDrive a / Drive B Halt On VideoAdvanced Bios Features Delay Prior to ThermalLimit Cpuid MaxVal Boot Other Device Hard Disk Boot PriorityQuick Power On Self Test First/Second/Third Boot DeviceTypematic Delay Msec Boot Up Floppy SeekBoot Up NumLock Status Typematic Rate SettingSmall Logo EPA Show MPS Version Control for OSOS Select for Dram 64MB Report No FDD For WINAdvanced Chipset Features AGP Aperture Size MB IDE Integrated PeripheralsIDE Primary/Secondary Master/Slave Udma IDE HDD Block ModeOnChip Primary/Secondary PCI IDE IDE Primary/Secondary Master/Slave PIOCSA LAN Giga-LAN Uart Mode SelectParallel Port Mode AC97 AudioVideo Off Method Power Management SetupPower Management Acpi FunctionResume by Alarm Suspend ModeHDD Power Down Power On by RingReload Global Timer Events Resources Controlled by PNP/PCI ConfigurationsPNP OS Install Reset Configuration DataPC Health Status Spread Spectrum Frequency/Voltage ControlCPU Clock Ratio Auto Detect PCI ClkSave & Exit Setup Load Fail-Safe DefaultsLoad Setup Defaults Set Supervisor/User PasswordThis page is intentionally left blank Drivers Installation Intel 865G Chipset Software Intallation Utility Drivers Installation Drivers Installation Intel 865G Chipset Graphics Driver Drivers Installation Realtek AC97 Codec Audio Driver Installation Intel PRO LAN Drivers Installation O Port Address Map AppendixLevel Function Interrupt Request Lines IRQ

MB865 specifications

The Intel MB865 is a cutting-edge motherboard that exemplifies the advanced technologies Intel has become synonymous with in the world of computing. Designed primarily for high-performance computing environments, the MB865 integrates a host of features tailored for both gamers and professionals alike.

One of the standout characteristics of the Intel MB865 is its use of Intel's latest chipset architecture, ensuring compatibility with the latest processors. This motherboard supports Intel's 10th and 11th generation Core processors, allowing users to harness the power of multiple cores and high clock speeds for demanding applications like gaming, video editing, and 3D modeling.

The MB865 boasts a robust power delivery system, featuring a multi-phase power design that ensures stable voltage regulation and optimizes energy efficiency. This characteristic is particularly beneficial for overclocking enthusiasts who seek to push their CPUs beyond stock performance limits. Coupled with a highly effective thermal design, the motherboard helps maintain optimal temperatures, even under extreme loads.

In terms of connectivity, the Intel MB865 is equipped with multiple USB 3.2 Gen 2 ports, providing high-speed data transfer rates for peripherals such as external drives and gaming accessories. The inclusion of USB Type-C further enhances flexibility, enabling users to connect a wider range of devices.

Storage capabilities are also top-notch, with support for M.2 and SATA solid-state drives. This configuration allows for lightning-fast read and write speeds, significantly reducing load times and enhancing overall system responsiveness. The motherboard also features RAID support, enabling users to configure their storage drives for redundancy or performance benefits.

Networking is made seamless with the incorporation of Intel's advanced Ethernet controller, which ensures high-speed wired connectivity. Additionally, the MB865 supports Wi-Fi 6 technology, offering improved wireless performance and the ability to handle multiple devices simultaneously without a hitch.

The Intel MB865 does not compromise on sound quality either, as it comes with an integrated high-definition audio codec, ensuring crystal clear audio playback for gamers and multimedia users. Moreover, the motherboard is equipped with a BIOS that provides a user-friendly interface, allowing for easy system management and configuration adjustments.

In conclusion, the Intel MB865 is a powerhouse motherboard that brings together a blend of high-performance features, extensive connectivity options, and advanced technologies. It is a perfect choice for enthusiasts and professionals looking to build a top-tier system that can handle the demands of modern computing tasks.