Pointing Device Interface Operation | HP 8000 tower specs

5.5.2 Pointing Device Interface Operation

Input/Output Interfaces

5.5.2 Pointing Device Interface Operation

The pointing device (typically a mouse) connects to a 6-pin DIN-type connector that is identical to the keyboard connector both physically and electrically. The operation of the interface (clock and data signal control) is the same as for the keyboard. The pointing device interface uses the IRQ12 interrupt.

5.5.3 Keyboard/Pointing Device Interface Connector

The legacy-light model provides separate PS/2 connectors for the keyboard and pointing device. Both connectors are identical both physically and electrically. Figure 5-6 and Table 5-4 show the connector and pinout of the keyboard/pointing device interface connectors.

Figure 5-6. PS/2 Keyboard or Pointing Device Interface Connector (as viewed from rear of chassis)

Table 5-4.

Keyboard/Pointing Device Connector Pinout

Pin	Signal	Description	Pin	Signal	Description

1	DATA	Data	4	+ 5 VDC	Power

2	NC	Not Connected	5	CLK	Clock

3	GND	Ground	6	NC	Not Connected

5-8

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Technical Reference Guide

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HP 8000 tower manual Pointing Device Interface Operation, Keyboard/Pointing Device Interface Connector

Contents

Document Part Number Technical Reference GuideHP Compaq 8000 Elite Series Business Desktop Computers December HP Compaq 8000 Elite Series Business Desktop Computers Technical Reference GuideFirst Edition December Document Part Number 1 Introduction Contents2 System Overview 4 System Support 3 Processor/Memory Subsystem5 Input/Output Interfaces 7 Power and Signal Distribution 6 Integrated Graphics Subsystem 8 SYSTEM BIOS A Error Messages and Codes Index 1.2 Additional Information Sources Introduction1.1 About this Guide 1.1.1 Online Viewing 1.4.1 Special Notices 1.3 Serial Number1.4 Notational Conventions 1.4.2 Values Acronym or 1.5 Common Acronyms and AbbreviationsAcronyms and Abbreviations Abbreviation Table 1-1 Continued Acronym or Table 1-1 ContinuedAcronyms and Abbreviations Abbreviation Acronym or Table 1-1 ContinuedAcronyms and Abbreviations Abbreviation Acronym or Table 1-1 ContinuedAcronyms and Abbreviations Abbreviation Acronym or Table 1-1 ContinuedAcronyms and Abbreviations Abbreviation Acronym or 1-10 System Overview 2.1 Introduction 2.2 Features Feature Differences by Form Factor USDT 2.3 System Architecture Architectural Differences by Form Factor System Overview 2.3.2 Chipset 2.3.1 Intel Processor SupportChipset Components and Functionality 2.3.4 System Memory 2.3.3 Support ComponentsSupport Component Functions 2.3.7 Universal Serial Bus Interface 2.3.5 Mass Storage2.3.6 Serial Interface 2.3.8 Network Interface Controller 2.3.10 Audio Subsystem 2.3.9 Graphics SubsystemIntegrated Graphics Subsystem Statistics 2.3.11 HP ProtectTools Embedded Security 2.4 SpecificationsEnvironmental Specifications Factory Configuration Power Supply Electrical Specifications Physical Specifications 2-12 Processor/Memory Subsystem 3.1 Introduction 3.2 Intel Processors 3.2.1 Intel Processor Overview 3.2.2 Processor Changing/Upgrading Supported Processors partial listing 3.3 Memory Subsystem 3.3.2 Memory Mapping and Pre-allocation 3.3.1 Memory UpgradingMemory Socket Loading Expansion Area Figure 3-2. System Memory Map for maximum of 8 gigabytesBase Memory 4.2 PCI Bus Overview System Support4.1 Introduction 4.2.1 PCI 2.3 Bus Operation System Support PCI Component Configuration AccessWired to PCI Bus Transaction Protocol Layer 4.2.2 PCI Express Bus OperationSoftware/Driver Layer PCI Bus Mastering Devices 4.2.4 PCI Interrupts 4.2.5 PCI Power Management Support4.2.3 Option ROM Mapping Link Layer PCI 2.3 Bus Connector Pinout 4.2.6 PCI ConnectorsPCI 2.3 Connector Figure 4-2. 32-bit, 5.0-volt PCI 2.3 Bus Connector PCIe Bus Connector Pinout PCIe ConnectorsFigure 4-3. PCIe Bus Connectors 8259 Mode 4.3 System Resources4.3.1 Interrupts APIC Mode 4.3.2 Direct Memory Access PCI Interrupt Distribution 4.4 Real-Time Clock and Configuration Memory 4.4.1 Clearing CMOS 4.5.1 Security Functions 4.5 System Management4.4.2 Standard CMOS Locations Configuration Memory CMOS Map Cable Lock Provision Power-On / Setup PasswordSetup Password I/O Interface Security Smart Cover Lock Optional 4.5.2 Power ManagementACPI Wake-Up Events 4.5.4 Thermal Sensing and Cooling 4.5.3 System StatusSystem Operational Status LED Indications 4.6 Register Map and Miscellaneous Functions 4.6.1 System I/O Map I/O Port System I/O MapFunction ICH10 Functions 4.6.2 GPIO FunctionsSIO Controller Functions Input/Output Interfaces 5.1 Introduction 5.2 SATA/eSATA Interfaces 5.2.1 SATA interface 5.2.2 eSATA interface 5.3 Serial Interface DB-9 Serial Connector Pinout 5.4.2 Enhanced Parallel Port Mode 5.4 Parallel Interface Support5.4.1 Standard Parallel Port Mode 5.4.3 Extended Capabilities Port Mode DB-25 Parallel Connector Pinout 5.4.4 Parallel Interface Connectore w q - 9 8 7 6 5 4 3 2 1 g f d s a p o i u y t r 5.5 Keyboard/Pointing Device Interface 5.5.1 Keyboard Interface Operation 5.5.2 Pointing Device Interface Operation 5.5.3 Keyboard/Pointing Device Interface ConnectorKeyboard/Pointing Device Connector Pinout 5.6.1 USB Connector 5.6 Universal Serial Bus Interface USB Cable Length Data 5.6.2 USB Cable DataUSB Connector Pinout USB Color Code 5.7 Audio Subsystem Figure 5-8. Audio Subsystem Functional Block Diagram 5.7.2 HD Audio Link Bus 5.7.1 HD Audio Controller5.7.3 Audio Multistreaming The specifications for the HD Audio subsystem are listed in Table 5.7.4 Audio SpecificationsHD Audio Subsystem Specifications 5.8 Network Interface Controller 5.8.1 Wake-On-LAN Support 5.8.3 Power Management Support5.8.2 Alert Standard Format Support 5.8.5 NIC Specifications 5.8.4 NIC ConnectorTable 5-11. NIC Specifications Integrated Graphics Subsystem 6.1 Introduction 6.2 Functional Description GMA 4500 Memory Allocation SDRAM InstalledMaximum Memory Allocation 6.3 Display Modes 6.4 Upgrading 6.5 Monitor Connectors 6.5.1 Analog Monitor Connector 6.5.2 DisplayPort Connector Figure 6-3. DisplayPort Connector, as viewed from rear of chassis Integrated Graphics Subsystem 7.2 USDT Power Distribution Power and Signal Distribution7.1 Introduction USDT 135-Watt Power Supply Unit Specifications 7.3 SFF/CMT Power DistributionTable 7-1 lists the specifications of the external supply Figure 7-2. SFF/CMT Power Distribution and Cabling, Block Diagram SFF 240-Watt Power Supply Unit Specifications CMT 320-Watt Power Supply Unit Specifications 7.4 Power Control 7.4.1 Power Button Power failure power supply is overloaded. Check storage Power LED IndicationsPower LED Pre-video memory error. Incompatible or incorrectly seated Power Management Event 7.5 Power Management7.4.2 Wake Up Events Wake-On-LAN Power System Power StatesPower State Designator 7.6 Signal DistributionSystem Board Connector, Indicator, and Switch Designations Component function Table 7-7. Continued Figure 7-5 shows pinouts of headers used on the sytem boardsFigure 7-3. System Board Header Pinouts 7-10 System BIOS 8.1 Introduction 8.2.1 Upgrading 8.2 ROM Flashing8.2.2 Changeable Splash Screen 8.3.2 Network Boot F12 Support 8.3 Boot Functions8.3.1 Boot Device Order 8.3.3 Memory Detection and Configuration 8.3.4 Boot Error Codes 8.4 Client Management Functions 8.4.2 Temperature Status 8.4.1 System ID and ROM TypeSystem ID Numbers 8.5 SMBIOS SMBIOS Functions 8.6 USB Legacy Support 8.7 Management Engine Functions A.2 Beep/Power LED Codes Error Messages and CodesA.1 Introduction A.3 Power-On Self Test POST Messages Error Messages and Codes 1794--Inaccessible device attached to SATA Power-On Self Test POST MessagesError Message 1796-SATA Cabling Error 1801-Microcode Patch Error A.4 System Error Messages Error Messages and Codes Memory Error Messages A.5 Memory Error MessagesTable A-4 Table A-4. Continued A.6 Keyboard Error MessagesMemory Error Messages Message Int. test, LpBk. test., and data register failed A.7 Printer Error MessagesA.8 Video Graphics Error Messages Int. test, LpBk. test., and cntrl. register failed A.9 Diskette Drive Error Messages A.10 Serial Interface Error Messages Table A-9 Serial Interface Error Messages A.11 Modem Communications Error Messages Table A-10 Modem Communications Error Messages A.12 System Status Error Messages A.13 Hard Drive Error Messages Cntlr. failed to deallocate bad sectors xx = 00, Hard drive ID test xx = 01, Hard drive format test A.14 Hard Drive Error Messages EGA Mono. graphics mode test failed A.15 Video Graphics Error MessagesA.16 Audio Error Messages Lightpen graphics test failed, no resp A.17 DVD/CD-ROM Error Messages A.18 Network Interface Error Messages Message A.19 SCSI Interface Error Messages 65xx-xx, 66xx-xxProbable Cause A.20 Pointing Device Interface Error Messages 8601-xx A-20 Index Numerics