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Compaq iPAQ 1.0 Technical Reference Manual
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Compaq iPAQ 1.0 Technical Reference Manual

Compaq iPAQ 1.0 Technical Reference Manual

Ipaq series of desktop personal computers
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Technical Reference Guide
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Compaq iPAQ Series of
Desktop Personal Computers
Covers iPAQ 1.0, 1.2, and 2.0 Models

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Summary of Contents for Compaq iPAQ 1.0

  • Page 1 Technical Reference Guide For the Compaq iPAQ Series of Desktop Personal Computers Covers iPAQ 1.0, 1.2, and 2.0 Models...
  • Page 2 This hardcopy is designed to be placed into a standard 3-ring binder. Provided below is a title block that can be copied and cut out and placed into the slip or taped onto the edge of the binder. iPAQ Series of Desktop Personal Computers...
  • Page 3 Reader Feedback Please feel free to send any questions, suggestions, corrections, or comments regarding this document please to the following email address: CPCG.Training@compaq.com When responding, please state the title of the referenced document.
  • Page 5 COMPLY WITH FCC CLASS B EMISSIONS REQUIREMENTS. This guide contains information protected by copyright. Except for use as a reference for the described Compaq product, no part of this document may be photocopied or reproduced in any form without prior written consent from Compaq Computer Corporation.
  • Page 6 Technical Reference Guide Compaq iPAQ Series of Desktop Personal Computers Second Edition –- February 2001...

  • Page 7: Table Of Contents

    INTRODUCTION ........................3-1 PROCESSOR ..........................3-2 3.2.1 CELERON PROCESSOR ....................3-2 3.2.2 PENTIUM III PROCESSOR....................3-3 3.2.3 PROCESSOR UPGRADING ....................3-4 MEMORY SUBSYSTEM......................3-5 SUBSYSTEM CONFIGURATION .................... 3-8 Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...
  • Page 8 KEYBOARD/POINTING DEVICE INTERFACE CONNECTOR........5-21 UNIVERSAL SERIAL BUS INTERFACE ................5-22 5.7.1 USB DATA FORMATS....................5-23 5.7.2 USB PROGRAMMING ....................5-24 5.7.3 USB CONNECTOR ......................5-25 5.7.4 USB CABLE DATA ......................5-25 Compaq iPAQ Series of Desktop Personal Computers Second Edition –- February 2001...
  • Page 9 FLASH ROM FUNCTIONS ....................8-7 8.3.6 POWER BUTTON FUNCTIONS..................8-7 8.3.7 ACCESSING CMOS......................8-8 8.3.8 ACCESSING CMOS FEATURE BITS ................8-8 8.3.9 SECURITY FUNCTIONS ....................8-10 MEMORY DETECTION AND CONFIGURATION............... 8-11 Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...
  • Page 10 APPENDIX C KEYBOARD.......................... INTRODUCTION ........................C-1 KEYSTROKE PROCESSING ....................C-2 C.2.1 PS/2-TYPE KEYBOARD TRANSMISSIONS..............C-3 C.2.2 USB-TYPE KEYBOARD TRANSMISSIONS..............C-4 C.2.3 KEYBOARD LAYOUTS....................C-5 C.2.4 KEYS...........................C-8 C.2.5 KEYBOARD COMMANDS.....................C-11 C.2.6 SCAN CODES........................C-11 CONNECTORS.........................C-16 Compaq iPAQ Series of Desktop Personal Computers Second Edition –- February 2001...

  • Page 11: List Of Figures

    IGNAL ISTRIBUTION IAGRAM 7–5. PAQ 2.0 S ................7-8 IGURE IGNAL ISTRIBUTION IAGRAM 7–6. S ..................7-9 IGURE YSTEM OARD EADER INOUTS B–1. ASCII C ......................B-1 IGURE HARACTER Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...
  • Page 12 EYBOARD AYOUT C–8. 8-B ..............C-7 IGURE UTTON CCESS EYBOARD AYOUT C–9. PS/2 K )..............C-16 IGURE EYBOARD ABLE ONNECTOR C–10. USB K ) ..............C-16 IGURE EYBOARD ABLE ONNECTOR viii Compaq iPAQ Series of Desktop Personal Computers Second Edition –- February 2001...

  • Page 13: List Of Tables

    ABLE NTERFACE ONFIGURATION EGISTERS 5–16. USB C ....................5-24 ABLE ONTROL EGISTERS 5–17. USB C ....................5-25 ABLE ONNECTOR INOUT 5–18. USB C ....................5-25 ABLE ABLE ENGTH Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...
  • Page 14 A–18. SCSI I ..................A-11 ABLE NTERFACE RROR ESSAGES A–19. P ..............A-11 ABLE OINTING EVICE NTERFACE RROR ESSAGES C–1. K ...................C-11 ABLE EYBOARD YSTEM OMMANDS C–2. K .....................C-12 ABLE EYBOARD ODES Compaq iPAQ Series of Desktop Personal Computers Second Edition –- February 2001...

  • Page 15: Chapter 1 Introduction

    Chapter 1 INTRODUCTION ABOUT THIS GUIDE This guide provides technical information about Compaq iPAQ Desktop Personal Computers. This document describes in detail the system’s design and operation for programmers, engineers, technicians, and system administrators, as well as end-users wanting detailed information.

  • Page 16: Additional Information Sources

    SERIAL NUMBER The unit’s serial number is located on a sticker placed on the exterior cabinet. The serial number may also be read with the Compaq Diagnostics or Compaq Insight Manager utilities. Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 17: Notational Conventions

    (MSb) on the far left, least significant bit (LSb) at the far right. Byte values in hexadecimal are also shown with the MSB on the left, LSB on the right. Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 18: Common Acronyms And Abbreviations

    (configuration memory) Cntlr controller Cntrl control codec compressor/decompressor Compaq central processing unit CRIMM Continuity (blank) RIMM cathode ray tube Compaq system management / Compaq server management Continued Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...
  • Page 19 Graphics address re-mapping table graphics user interface hexadecimal hardware hexadecimal Hertz (cycles-per-second) I/O controller hub integrated drive element IEEE Institute of Electrical and Electronic Engineers interrupt flag interface Continued Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...
  • Page 20 1.) programmable array logic 2.) phase altering line Personal computer Printed circuit assembly peripheral component interconnect pulse code modulation PCMCIA Personal Computer Memory Card International Association Continued Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...
  • Page 21 SPDIF Sony/Philips Digital Interface (IEC-958 specification) Spare part number standard parallel port SRAM static RAM Streaming SIMD extensions super twist pneumatic SVGA super VGA software Continued Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...
  • Page 22 VESA Video Electronic Standards Association video graphics adapter VLSI very large scale integration VRAM Video RAM watt Wake-On-LAN WRAM Windows RAM zero flag zero insertion force (socket) Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 23: Chapter 2 System Overview

    2. Chapter 2 SYSTEM OVERVIEW INTRODUCTION The Compaq iPAQ Series of Desktop Personal Computers provides affordable business solutions with the focus on internet access and mainstream performance. Based on an Intel Celeron and Pentium III processors, these systems are designed to maximize the effectiveness of internet and intranet usage while simplifying system management.

  • Page 24: Features And Options

    Cable lock provision ♦ Compaq Easy-Access keyboard w/Windows support ♦ Mouse ♦ 90-watt power supply Table 2-1 shows the differences in features between the iPAQ 1.0, 1.2, and 2.0 models: Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 25: Options

    USB 56K V.92 Modem USB 802.11b Adapter ♦ Security: Security bar (iPAQ 2.0 only) ♦ MultiBay drives: 24x CD-ROM drive 8x DVD-ROM drive 4/4/20x CD-RW drive Super Disk LS-120 Power Drive Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 26: Mechanical Design

    Chapter 2 System Overview MECHANICAL DESIGN The Compaq iPAQ Internet Device uses a minitower form factor featuring a smaller footprint and reduced height than previous minitowers, allowing easy floor or desktop positioning. Commonly used audio and USB connections are accessible from the front panel.

  • Page 27: Figure 2-3. Compaq Ipaq D

    PS/2 keyboard connector AC line in connector Line voltage select switch Legacy module connector Carrying depression NOTE: [1] Dedicated-direct USB port. Figure 2–3. Compaq iPAQ Desktops, Rear Views Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 28: Chassis Layouts

    2.3.2.1 iPAQ 1.0/1.2 CHASSIS LAYOUT The internal assemblies of iPAQ 1.0/1.2 models are accessible from the right side of the system unit. The right side (carbon-colored) cover features tool-less removal allowing quick access to the DIMM sockets through an access opening and to the hard drive. Access to the system board and processor requires removing the right chassis access panel.

  • Page 29: Figure 2-5. Compaq Ipaq 2.0 C

    Hard drive in 3.5” 1/3 height bay System board (PCA# 011010) 4-MB display cache module (PCA# 011044) (if installed) Processor/heat sink assembly Speaker Power supply assembly Figure 2–5. Compaq iPAQ 2.0 Chassis Layout Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 30: System Board Layouts

    Chapter 2 System Overview 2.3.3 SYSTEM BOARD LAYOUTS Compaq iPAQ 1.0 and 1.2 systems use a FlexATX-type (9.0 x 7.5 inch) system board in one of two variations; a legacy board or a legacy-free board (Figure 2-6). Legacy PCA# 161014...

  • Page 31: Figure 2-7. Compaq Ipaq 2.0 S

    Technical Reference Guide All iPAQ 2.0 systems use a Compaq-proprietary system board (Figure 2-7). PCA# 011010, Solder Side PCA# 011010, Component Side Item Description Power button Battery CMOS clear switch Display cache module connector Password enable jumper Video graphics monitor connector USB connector pairs: a) J111;...

  • Page 32: System Architecture

    2.0 models are based on the Intel 815e chipset. 2.4.1 IPAQ 1.0/1.2 ARCHITECTURE The architecture of iPAQ 1.0/1.2 models is based on the Intel 810e chipset with a Celeron or Pentium III processor installed as standard. iPAQ 1.0 systems feature 500-MHz processors while iPAQ 1.2 systems feature 733-MHz Pentium III processors.

  • Page 33: Figure 2-8. Compaq Ipaq 1.0/1.2 A

    Subsystem Link Bus 82559 Ethernet Power Controller Supply LEGEND: Legacy systems only. Legacy-free systems only. Pentium III-based systems only. Figure 2–8. Compaq iPAQ 1.0/1.2 Architecture, Block diagram Compaq iPAQ Series of Desktop Personal Computers 2-11 Second Edition - February 2001...

  • Page 34: Ipaq 2.0 Architecture

    (shipped with the legacy module installed) include PS/2 keyboards and mouse devices. The Firmware Hub (FWH) component (82802 or equivalent) is loaded with Compaq BIOS. The iPAQ 2.0 features an AC’97 audio subsystem with 8-watt amplifier and internal speaker. The audio system includes microphone and line inputs and headphone and line outputs.

  • Page 35: Figure 2-9. Compaq Ipaq 2.0 A

    Ports Mouse I/F Serial Port Power Supply Parallel Port LEGEND: Standard on Pentium III systems. Standard on legacy systems. Figure 2–9. Compaq iPAQ 2.0 Architecture, Block diagram Compaq iPAQ Series of Desktop Personal Computers 2-13 Second Edition - February 2001...

  • Page 36: Processors

    Chapter 2 System Overview 2.4.3 PROCESSORS The Compaq iPAQ desktop series includes models based on Celeron and Pentium III processors. These processors are backward-compatible with software written for the Pentium II, Pentium MMX, Pentium Pro, Pentium, and x86 microprocessors. Both processor architectures include a floating-point unit and first and secondary caches providing enhanced performance for multimedia applications.

  • Page 37: Figure 2-10. Processora

    2.4.3.3 Processor Upgrading All models of the Compaq iPAQ use the PGA370 zero-insertion force (ZIF) socket for processor mounting as shown in Figure 2-10. The processor assembly includes a heat sink attached by a retaining clip or bar. Replacing the processor requires removal of the heat sink followed by removal of the processor.

  • Page 38: Chipset

    2.4.4 CHIPSET The chipset is designed to compliment the processor and provide the central point for the system’s data transactions. The Compaq iPAQ 1.0/1.2 system employs the Intel 810E while the iPAQ 2.0 system uses the Intel 815E chipset. The chipset is composed of a graphics memory controller hub (GMCH), an I/O controller hub (ICH), and a firmware hub (FWH).

  • Page 39: Support Components

    IPAQ 1.2 systems use PC100-type DIMMs and iPAQ 2.0 systems use PC133 DIMMs. Up to 512 megabytes (with current DIMM technology) maybe installed in each system. Compaq iPAQ Series of Desktop Personal Computers 2-17 Second Edition - February 2001...

  • Page 40: Mass Storage

    Chapter 2 System Overview 2.4.7 MASS STORAGE In a standard configuration the Compaq iPAQ supports two mass storage devices; one internal IDE hard drive and a removeable-media IDE device (CD-ROM, DVD, or LS-120 Power Drive, etc.) mounted in the MultiBay. This system uses SMART drives for the internal IDE device. An adapter is available that allows a secondary IDE hard drive to be installed in the MultiBay.

  • Page 41: Audio Subsystem

    A low-distortion 5-watt amplifier drives a long-excursion speaker for optimum sound. SPECIFICATIONS This section includes the environmental, electrical, and physical specifications for the Compaq iPAQ Series Internet Devices. Where provided, metric statistics are given in parenthesis. All specifications subject to change without notice.
  • Page 42 Type GaAs Wave Length 790 +/- 25 nm Average Access Time: Random 140 ms Full Stroke 300 ms Audio Output Level 0.7 Vrms Cache Buffer 128 KB 2-20 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...
  • Page 43 5400 RPM 5400 Drive Fault Prediction SMART II SMART II SMART III SMART III NOTE: [1] For use in MultiBay. N/A = Not available at press time. Compaq iPAQ Series of Desktop Personal Computers 2-21 Second Edition - February 2001...
  • Page 44 Chapter 2 System Overview This page is intentionally blank. 2-22 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 45: Chapter 3 Processor/Memory Subsystem

    Chapter 3 PROCESSOR/MEMORY SUBSYSTEM INTRODUCTION This chapter describes the processor/cache memory subsystem of the Compaq iPAQ Desktop Personal Computer featuring a Celeron or Pentium III processor and the 810E or 815E chipset (Figure 3-1). The chipset’s GMCH supports up to two SDRAM DIMMs and integrates a 2D/3D graphics controller (covered in Chapter 6).

  • Page 46: Celeron Processor

    Chapter 3 Processor/Memory Subsystem PROCESSOR The Compaq iPAQ is configured as either a Celeron-based or Pentium III-based system. 3.2.1 CELERON PROCESSOR The Celeron processor (Figure 3-2) uses a dual-ALU CPU with branch prediction and MMX support, floating point unit (FPU) for math coprocessing, a 32-KB primary (L1) cache, and a 128- KB secondary (L2) cache.

  • Page 47: Pentium Iii Processor

    256 KB @ 866 MHz 133 MHz NOTES: [1] Standard processor on iPAQ 1.0 systems. [2] Standard processor on iPAQ 1.2 systems. [3] Standard processor on iPAQ 2.0 systems. The Pentium III processor is software-compatible with Celeron, Pentium II, Pentium MMX,...

  • Page 48: Processor Upgrading

    (i.e., Celeron for Celeron, or Pentium for Pentium). WARNING: Upgrading iPAQ 1.0/1.2 models to a faster processor is possible provided that the new processor does not draw more than 18 amps of current. Using a processor that draws in excess of 18 amps may create a thermal condition and damage the system board.

  • Page 49: Memory Subsystem

    Technical Reference Guide MEMORY SUBSYSTEM The iPAQ 1.0/1.2 system supports PC100 SDRAM for system memory. The iPAQ 2.0 system supports PC133 SDRAM DIMMs. These systems provide two 168-pin SDRAM DIMM sockets that accommodate single- or double-sided DIMMs. DIMMs should always be installed starting with the socket closest to the GMCH and/or processor These systems are designed for using non-ECC DIMMs only.
  • Page 50 [7] Field format proposed to JEDEC but not defined as standard at publication time. [8] Field specified as optional by JEDEC but required by this system. [9] Compaq usage. This system requires that the DIMM EEPROM have this space available for reads/writes.

  • Page 51: Figure 3-4. System Memorym

    DRAM or to PCI space. Graphics RAM area is mapped to PCI or AGP locations. Figure 3–4. System Memory Map Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 52: Subsystem Configuration

    Low Priority Timer NOTES: Refer to Intel Inc. documentation for detailed description of registers. Assume unmarked locations/gaps as reserved. [1] 2500 = iPAQ 1.x, 1130 = iPAQ 2.0 Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 53: Chapter 4 System Support

    For detailed information on specific components, refer to the applicable manufacturer’s documentation. Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 54: Pci Bus Overview

    Audio Function Function Function Function Function Function Bus #2 82559 Network I/F Cntlr. iPAQ 2.0 (ICH2) only. iPAQ 1.0/1.2 (ICH) only. Figure 4-1. PCI Bus Devices and Functions Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 55: Pci Bus Transactions

    10..8 Function Number. Selects function of selected PCI device. 7..2 Register Index. Specifies config. reg. Configuration Cycle Type ID. 00 = Type 0 01 = Type 1 Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 56: Figure 4-2. Configurationc

    AD22 NOTES: Vender ID = 8086 for all components. 82810e and 82801AA used in iPAQ 1.0 and 1.2 systems. 82815 and 82801BA used fin iPAQ 2.0 systems na = Not applicable or implemented on these systems. [1] Entries and values apply to both system types unless divided by forward slash.

  • Page 57: Pci Sub-Busses

    33-MHz rate. Generally transparent in operation, the LPC bus becomes a factor primarily during the configuration of DMA channel modes (see section 4.4.3 “DMA”). Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 58: Pci Configuration

    65-87h Reserved Reserved Dev. 31 Error Config. Function Disable Register NOTE: [1] Value for each byte. [2] ICH = 2410h, ICH2 = 2440h Assume unmarked locations/gaps as reserved. Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 59: System Resources

    Figure 4-4. Maskable Interrupt Processing, Block Diagram The 82801 ICH2 component can be configured (through the Setup utility) to handle interrupts in one of two modes of operation: ♦ 8259 mode ♦ APIC mode Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 60: Apic Mode

    020h Base Address, Int. Cntlr. 1 021h Initialization Command Word 2-4, Int. Cntlr. 1 0A0h Base Address, Int. Cntlr. 2 0A1h Initialization Command Word 2-4, Int. Cntlr. 2 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 61: Non-Maskable Interrupts

    APM BIOS to service the SMI- according to the cause of the timeout. Although the SMI- is primarily used for power managment the interrupt is also employed for the QuickLock/QuickBlank functions as well. Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 62: Direct Memory Access

    DMA through the I/O controller such as the diskette drive controller. ♦ PC/PCI DMA Mode - Uses the REQ#/GNT# signals to communicate DMA channel control and is used by PCI expansion devices. 4-10 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 63: System Clock Distribution

    The battery is located in a battery holder on the system board is replaced with a Renata CR2032 or equivalent 3-VDC lithium battery. Compaq iPAQ Series of Desktop Personal Computers 4-11 Second Edition - February 2001...

  • Page 64: Clearing Cmos

    To clear only the Power-On Password refer to section 4.6.1.1. 4.5.2 CMOS ARCHIVE AND RESTORE On iPAQ 1.0/1.2 systems, the BIOS saves a copy of NVRAM (CMOS contents, password(s) and other system variables) in a portion of the flash ROM during the boot sequence. Should the system become un-usable, the last good copy of NVRAM data can be restored with the Power Button Override function.

  • Page 65: Standard Cmos Locations

    APM status flags Enhanced hard drive support ECC POST test single bit Reserved 37h-3Fh Power-on password Power management functions 40-FFh Feature Control/Status NOTES: Assume unmarked gaps are reserved. Compaq iPAQ Series of Desktop Personal Computers 4-13 Second Edition - February 2001...
  • Page 66 0 = RTC has lost power 1 = RTC has not lost power 6..0 Reserved Configuration Byte 0Eh, Diagnostic Status Default Value = 00h This byte contains diagnostic status data. 4-14 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...
  • Page 67 1100 = Type 12 0101 = Type 5 1101 = Type 13 0110 = Type 6 1110 = Type 14 0111 = Type 7 1111 = other (use bytes 1Ah) Compaq iPAQ Series of Desktop Personal Computers 4-15 Second Edition - February 2001...
  • Page 68 Valid base memory sizes are 512 and 640 kilobytes . Configuration Bytes 17h and 18h, Extended Memory Size Bytes 17h and 18h hold a 16-bit value that specifies the extended memory size in 1-KB increments. 4-16 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...
  • Page 69 Unmapping of ROM: 0 = Allowed 1 = Not allowed Reserved Diagnostic Status Byte Address 00 = Memory locations 80C00000h-80C00004h 01 = I/O ports 878h-87Ch 11 = neither place Compaq iPAQ Series of Desktop Personal Computers 4-17 Second Edition - February 2001...
  • Page 70 10 = 256 KB 11 = Invalid 4..0 Internal Compaq Memory: 00000 = None 00001 = 512 KB 00010 = 1 MB 00011 = 1.5 MB 11111 = 15.5 MB 4-18 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...
  • Page 71 1 = Numlock on at power on Screen Blank Control: 0 = No screen blank 1 = Screen blank w/QuickLock 4..0 ScreenSave Timeout. (Index to SIT monitor timeout record) 000000 = Disabled Compaq iPAQ Series of Desktop Personal Computers 4-19 Second Edition - February 2001...
  • Page 72 0 = Not installed, 1 = Installed Standard Numeric Coprocessor Present: 0 = Not installed, 1 = Installed 3..0 Reserved Configuration Byte 34h, International Language Support Default Value = 00h 4-20 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...
  • Page 73 Row 0 Error Detect 0 = No single bit error detected. 1 = Single bit error detected. Configuration Byte 37h-3Fh, Power-On Password These eight locations hold the power-on password. Compaq iPAQ Series of Desktop Personal Computers 4-21 Second Edition - February 2001...

  • Page 74: System Management

    CMOS with the CMOS clear button (section 4.5.1). However, the iPAQ 1.0/1.2 does not include a CMOS clear button and enabling and then forgetting both the Setup and Power-On passwords on an iPAQ 1.0/1.2 system will require invoking a special utility with a service password based on the unit serial number and date.

  • Page 75: Power Management

    Suspend or soft-off Wake On LAN (w/NIC) Suspend or soft-off Suspend or soft-off Serial Port Ring Suspend or soft-off Suspend only Keyboard Suspend only Mouse Suspend only Compaq iPAQ Series of Desktop Personal Computers 4-23 Second Edition - February 2001...

  • Page 76: System Status

    Steady red CPU thermal shutdown Blinks red @ 4 Hz ROM error Blinks red @ 1 Hz Power supply crowbar activated Blinks red @ .5 Hz System off 4-24 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 77: Temperature Sensing And Cooling

    All systems are designed to use a processor with a passive heat sink. The iPAQ 1.0/1.2 system includes a system board connector for a processor fan, which, if present, operates in tandem with the power supply fan.

  • Page 78: Register Map And Miscellaneous Functions

    PCI Configuration Data (byte, word, or dword access) NOTE: Assume unmarked gaps are unused, reserved, or used by functions that employ variable I/O address mapping. Some ranges may include reserved addresses. 4-26 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 79: 82801 Ich General Purpose Functions

    IRQE- IRQF- IRQG- IRQH- HD LED detect Multibay device detect SMI from I/O Password (1 = Enabled, 0 = Disabled) NOTE: NC = not connected (not used). Compaq iPAQ Series of Desktop Personal Computers 4-27 Second Edition - February 2001...

  • Page 80: I/O Controller Functions

    55h once to I/O port 2Eh. The BIOS then initiates each logical device and then deactivates the configuration phase by writing AAh to 2Eh. 4-28 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...
  • Page 81 Diskette Select B NOTE: NC = Not connected (not used). [1] System ID (ID4..0) value for these systems = 00111. [2] If set, will force “Safe Boot” mode. Compaq iPAQ Series of Desktop Personal Computers 4-29 Second Edition - February 2001...

  • Page 82: 820802 Fwh Functions

    ACPI) selected. Refer to chapter 7 for more information regarding power management. 4.7.4 820802 FWH FUNCTIONS The 82802 Firmware Hub (FWH) is loaded with Compaq BIOS, which is discussed in Chapter 7. The FWH component also includes general purpose ports that are utilized on the iPAQ 2.0 as indicated in the following table: Table 4-14.

  • Page 83: Chapter 5 Input/Output Interfaces

    Primary controller: drive 0, type 65; drive 1, type 66 Secondary controller: drive 0, type 68; drive 1, type 15 Non-DOS (non-Windows) operating systems may require using Setup (F10) for drive configuration. Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...
  • Page 84 Bus Master IDE Status (Secondary) Bus Master IDE Descriptor Pointer (Sec.) 0000 0000h NOTE: Unspecified gaps are reserved, will return indeterminate data, and should not be written to. 5-2 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 85: Primary Ide Interface

    [4] Primary connector wired to IRQ14, secondary connector wired to IRQ15. [5] Pin 39 is used for spindle sync and drive activity (becomes SPSYNC/DACT-) when synchronous drives are connected. Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 86: Secondary Ide Interface

    Write data Ground WGATE- Write gate TRK0- Track 00 Ground WPROT- Write protect Ground RDATA- Read data Ground HDSEL- Head (side one) select Diskette drive interface not connected. 5-4 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 87: Diskette Drive Interface

    Technical Reference Guide DISKETTE DRIVE INTERFACE NOTE: The Compaq iPAQ does not support a diskette drive. However, the I/O controller component contains a diskette drive controller that may need to be enabled (though Setup) to satisfy the requirements of some operating systems. This may result in device manager applications indicating the presence of a diskette drive that in fact is not available.

  • Page 88: Serial Interface

    The standard RS-232-C limitation of 50 feet (or less) of cable between the DTE (computer) and DCE (modem) should be followed to minimize transmission errors. Higher baud rates may require shorter cables. 5-6 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 89: Serial Test Interface

    The BIOS function INT 14 provides basic control of the serial interface. The serial interface can be directly controlled by software through the I/O-mapped registers listed in Table 5-7. Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...
  • Page 90 <0> Data register ready to be read (if set) 3FEh 2FEh Modem Status: <7..4> DCD-, RI-, DSR, CTS (respectively) active (if set) <3..0> DCD-, RI-, DSR, CTS (respectively) changed state since last read (if set) 5-8 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 91: Parallel Interface

    A watchdog timer is used to prevent system lockup. Five additional registers are available in EPP mode to handle 16- and 32-bit CPU accesses with the parallel interface. Address decoding includes address lines A0, A1, and A2. Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 92: Extended Capabilities Port Mode

    Table 5-8. Parallel Interface Configuration Registers Index Reset Address Function Value Activate Base Address MSB Base Address LSB Interrupt Select DMA Channel Select Mode Register Mode Register 2 5-10 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...
  • Page 93 D0-D7 (i.e., receive data). In ECP mode in the forward (output) direction, a write to this location places a tagged command byte into the FIFO and reads have no effect. Compaq iPAQ Series of Desktop Personal Computers 5-11 Second Edition - February 2001...
  • Page 94 While in ECP/forward mode, this location is used for filling the 16-byte FIFO with data bytes. Reads have no effect (except when used in Test mode). While in ECP/backward mode, reads yield data bytes from the FIFO. 5-12 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...
  • Page 95 0 = Not full (at least 1 empty byte) 1 = Full FIFO Empty Status (Read Only) 0 = Not empty (contains at least 1 byte) 1 = Empty Compaq iPAQ Series of Desktop Personal Computers 5-13 Second Edition - February 2001...

  • Page 96: Parallel Interface Connector

    ECP modes: Auto Feed or Host Acknowledge [3] EPP mode: user defined ECP modes:Fault or Peripheral Req. [4] EPP mode: Reset ECP modes: Initialize or Reverse Req. 5-14 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 97: Keyboard/Pointing Device Interface

    25 us Tss (Stop Bit Setup) 8 us 20 us Tsh (Stop Bit Hold) 15 us 25 us Figure 5-6. 8042-To-Keyboard Transmission of Code EDh, Timing Diagram Compaq iPAQ Series of Desktop Personal Computers 5-15 Second Edition - February 2001...
  • Page 98 Clears keyboard buffer and prepares to receive key ID. [1] Resend 8042 detected error in keyboard transmission. Reset Resets program, runs keyboard BAT, defaults to Mode 2. Note: [1] Used in Mode 3 only. 5-16 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 99: Pointing Device Interface Operation

    The keyboard interface configuration registers are listed in the following table: Table 5–12. Keyboard Interface Configuration Registers Table 5-12. Keyboard Interface Configuration Registers Index Address Function Activate Primary Interrupt Select Secondary Interrupt Select Reset and A20 Select Compaq iPAQ Series of Desktop Personal Computers 5-17 Second Edition - February 2001...
  • Page 100 A CPU write to I/O port 64h places a command value into the input buffer and sets the CMD/DATA bit of the status register (bit <3>) to CMD. 5-18 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...
  • Page 101 04h = Data line stuck high Initialization. This command causes the 8042 to inhibit the keyboard and pointing device and places 55h into the output buffer. Continued Compaq iPAQ Series of Desktop Personal Computers 5-19 Second Edition - February 2001...
  • Page 102 Pulse output port. Controls the pulsing of bits <3..0> of the output port (0 = pulse, 1 = don’t pulse). Note that pulsing bit <0> will reset the system. 5-20 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 103: Keyboard/Pointing Device Interface Connector

    Table 5–14. Keyboard/Pointing Device Connector Pinout Table 5-17. Keyboard/Pointing Device Connector Pinout Signal Description Signal Description DATA Data + 5 VDC Power Not Connected Clock Ground Not Connected Compaq iPAQ Series of Desktop Personal Computers 5-21 Second Edition - February 2001...

  • Page 104: Universal Serial Bus Interface

    Direct port Figure 5-8. USB I/F, Block Diagram Legacy-free iPAQ 1.0/1.2 and all iPAQ 2.0 systems provide both direct-controller and through-hub USB connections for USB peripherals. For maximum efficiency, direct-controller ports should be reserved for connection with a high-data throughput device such as a digital camera or CD. On iPAQ 2.0 systems, USB port 0 (upper left as viewed from rear) is a dedicated-direct port that...

  • Page 105: Usb Data Formats

    Data is transferred LSb first. A cyclic redundancy check (CRC) is applied to all packets (except a handshake packet). A packet causing a CRC error is generally completely ignored by the receiver. Compaq iPAQ Series of Desktop Personal Computers 5-23...

  • Page 106: Usb Programming

    Frame Number 0000h 08, 0B Frame List Base Address 0000h Start of Frame Modify 10, 11h Port 1 Status/Control 0080h 12, 13h Port 2 Status/Control 0080h Test Data 5-24 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 107: Usb Connector

    The shield, chassis ground, and power ground should be tied together at the host end but left unconnected at the device end to avoid ground loops. Color code: Signal Insulation color Data + Green Data - White Ground Black Compaq iPAQ Series of Desktop Personal Computers 5-25 Second Edition - February 2001...

  • Page 108: Audio Subsystem

    Chapter 5 Input/Output Interfaces AUDIO SUBSYSTEM A PCI audio subsystem is integrated onto the system board of the Compaq iPAQ. Implementing AC’97 design guidelines, the audio subsystem is designed to provide optimum sound. Key features of the audio subsystem include: ♦...

  • Page 109: Figure 5-11. Audio Subsystem

    Line In or Headphone plug differs between the two codec types (mechanical (AD1881) versus logic (AD1885)) and the iPAQ 2.0 features an 8- watt speaker amplifier versus the 5-watt amplifier of the iPAQ 1.x. Compaq iPAQ Series of Desktop Personal Computers 5-27 Second Edition - February 2001...

  • Page 110: Ac97 Audio Controller

    Bits 19-4: PCM audio data, right channel (SD OUT, playback; SD IN, record) Bits 3-0 all zeros Modem codec data (not used in this system) 6-11 Reserved I/O control Figure 5-12. AC’97 Link Bus Protocol 5-28 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 111: Audio Codec

    The microphone input is the default active input. All block functions are controlled through index-addressed registers of the codec. Compaq iPAQ Series of Desktop Personal Computers 5-29 Second Edition - February 2001...

  • Page 112: Audio Programming

    76h Misc. Control Bits 0404h 10h Line In Vol. 8808h 24h Reserved 7Ch Vender ID1 4144h 12h CD Vol. 8808h 26h Pwr Mgnt. 000xh 7Eh Vender ID2 5340h 5-30 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 113: Audio Specifications

    Headphone Output Power (into 32 ohms) 60 mW Input Gain Attenuation Range 46.5 dB Master Volume Range -94.5 dB Frequency Response: Codec 20-20 KHz Speaker 450 - 4000 Hz Compaq iPAQ Series of Desktop Personal Computers 5-31 Second Edition - February 2001...

  • Page 114: Network Interface Controller

    Chapter 5 Input/Output Interfaces NETWORK INTERFACE CONTROLLER All Compaq iPAQ systems include a network interface controller (NIC) on the system board supported by an RJ-45 connector with two LED indicators. The iPAQ 1.x system uses an 82559 Ethernet Controller component while the iPAQ 2.0 system uses equivalent logic integrated into the ICH2 component.

  • Page 115: Wake On Lan

    Intel PRO/100+ Management Adapter driver (v3.1x for iPAQ 1.x, v3.8 for iPAQ 2.0) or later (available from Compaq). Client-side utility agent software and utilities (available from Compaq). Management console running one of the following: HP OpenView Network Node Manager 6.x...

  • Page 116: Power Management Support

    Multicast address match – Packet with matching user-defined sample frame ♦ ARP (address resolution protocol) packet ♦ Flexible packet filtering – Packets that match defined CRC signature 5-34 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 117: Nic Programming

    14h Rx Direct Mem. Access Byte Cnt. 38h Function Present State Register 18h Early Receive Interrupt 20h Force Event Register Not implemented in these systems (CardBus registers). Compaq iPAQ Series of Desktop Personal Computers 5-35 Second Edition - February 2001...

  • Page 118: Figure 5-15. Ethernet Tpe C

    OpenServer Boot ROM Support Intel PRO/100 Boot Agent (PXE 2.0, RPL) F12 BIOS Support Bus Inteface PCI 2.2 Power Management Support APM, ACPI, PCI Power Management Spec. 5-36 Compaq iPAQ Series of Desktop Personal Computers Second Edition – February 2001...

  • Page 119: Chapter 6 Graphics Subsystem

    Chapter 6 GRAPHICS SUBSYSTEM Chapter 6 Graphics Subsystem INTRODUCTION All Compaq iPAQ systems feature a graphics controller that is integrated into the chipset’s GMCH component. This “Direct AGP” graphics solution provides efficient, economical 2D/3D performance. This chapter covers the following subjects: ♦...

  • Page 120: Functional Description

    Pentium III-based systems also include four megabytes of Display Cache that can be used for Z-buffering. Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...
  • Page 121 9 MB 12 MB Windows NT 4.0 w/128 MB 9 MB 12 MB Windows 2000 w/64 MB 9 MB 12 MB Windows 2000 w/128 MB 10 MB 12 MB Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 122: Display Modes

    60, 70, 75, 85 1600 x 900 60, 75, 85 1600 x 900 60, 75, 85 1600 x 1200 NOTE: [1] True color (24-bpp) mode support requires the 4-MB Display Cache. Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 123: Programming

    NOTES: Assume unmarked locations/gaps as reserved. Refer to Intel documentation for detailed register descriptions. [1] iPAQ 1.0/1.2 (82810E) = 2502h; iPAQ 2.0 (82815) = 1132h The graphics controller is controlled through memory-mapped registers by the appropriate software driver. MONITOR POWER MANAGEMENT CONTROL The controller provides monitor power control for monitors that conform to the VESA display power management signaling (DPMS) protocol.

  • Page 124: Monitor Connector

    [1] Fuse automatically resets when excessive load is removed. UPGRADING GRAPHICS The graphics subsystem of the iPAQ 1.0/1.2 system is not upgradeable. The graphics subsystem of iPAQ 2.0 systems that do not include the 4-MB display cache module (as is the case with Celeron- based systems) may be upgraded by adding the 4-MB display cache module.

  • Page 125: Chapter 7 Power Supply And Distribution

    110 VAC -5 VDC Drives Power Supply 110/220 VAC +12 VDC +12 VDC Assembly Select SW -12 VDC 220 VAC Figure 7–1. Power Distribution and Control, Block Diagram Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 126: Power Supply Assembly

    [3] P/N 216922 is non-power factor correction (PFC) type. P/N 218584 is PFC type. All power supply assemblies feature power line surge protection, withstanding brief surges of up to 2000 VAC without damage. Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 127: Power Control

    95. This system uses ACPI mode as the default power management mode, allowing the operating system to shut off the system (once the user has selected that decision) without further user intervention. Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 128: Power Distribution

    2.0 system as described ion the following subsections. 7.3.1.1 iPAQ 1.0/1.2 POWER DISTRIBUTION The iPAQ 1.0/1.2 power supply assembly includes a multi-connector cable assembly that routes +3.3 VDC, +5 VDC, -5 VDC, +12 VC, and -12 VDC to the system board as well as to the individual drive assemblies.
  • Page 129 All + and - values are VDC RTN = Return (signal ground) GND = Power ground PS On = Power supply on FO = Fan off Figure 7–3. iPAQ 2.0 Power Cable Diagram Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 130: Low Voltage Distribution

    1.90 VDC 1011 1.50 VDC 0100 1.85 VDC 1100 1.45 VDC 0101 1.80 VDC 1101 1.40 VDC 0110 1.75 VDC 1110 1.35 VDC 0111 1.70 VDC 1111 1.30 VDC Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 131: Signal Distribution

    Conn [1] Mouse Kybd Conn [1] Keyboard Speaker Audio Conn NOTE: [1] On legacy-light models, PS/2-type connector. On legacy-free models, USB connector. Figure 7–4. iPAQ 1.0/1.2 Signal Distribution Diagram Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...
  • Page 132 Standard on legacy systems, optional on legacy-free systems. Standard on Pentium-based systems, optional on Celeron-based systems. [1] Suggested connection. May also use J110 or J112 . Figure 7–5. iPAQ 2.0 Signal Distribution Diagram Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 133: Figure 7-6. System Boardh

    RX Data 2 7 Request to Send TX Data 3 8 Clear to Send Data Terminal Ready 4 9 Ring Indicate Ground 5 Figure 7–6. System Board Header Pinouts Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...
  • Page 134 Chapter 7 Power and Signal Distribution This page is intentionally blank. 7-10 Compaq iPAQ Series of Desktop Personal Computers Second Edition - February 2001...

  • Page 135: Chapter 8 Bios Rom

    Chapter 8 BIOS ROM INTRODUCTION The Compaq iPAQ desktops use Compaq BIOS firmware loaded into the 82802 FWH component. The BIOS ROM includes such functions as Power-On Self Test (POST), PCI device initialization, Plug ‘n Play support, power management activities, and Setup. This chapter includes the following topics: ♦...

  • Page 136: Ipaq 2.0 Features

    Chapter 8 BIOS ROM IPAQ 2.0 FEATURES The following features are unique to the BIOS of Compaq iPAQ 2.0 models: ♦ USB mouse support for DOS – USB mouse functionality is available outside of Windows. ♦ Hot-plugging of USB keyboards – USB keyboards may be added and recognized after system boot.

  • Page 137: Desktop Management Support

    Service identifier (four ASCII characters) Entry point for the BIOS32 Service Directory Revision level Length of data structure (no. of 16-byte units) Checksum (should add up to 00h) Reserved (all 0s) Compaq iPAQ Series of Desktop Personal Computers Review Copy - January 2001...

  • Page 138: System Id

    06F0h The ROM type may be checked through the Setup utility (press F10 key when prompted during the boot sequence) and by diagnostics software such as Compaq Insight Manager. Compaq iPAQ Series of Desktop Personal Computers Review Copy - January 2001...

  • Page 139: Edid Retrieve

    = 86h or 87h 8.3.3 DRIVE FAULT PREDICTION The Compaq BIOS provides direct Drive Fault Prediction support for IDE-type hard drives. This feature is provided through two BIOS calls. Function INT 15, AX=E817h is used to retrieve a 512- byte block of drive attribute data while the INT 15, AX=E81Bh is used to retrieve the drive’s warranty threshold data.

  • Page 140: System Map Retrieval

    ES:DI = 00 00 00 00 00 00 00 00 00 FC 09 00 00 00 00 00 01 00 00 00 (indicates 0-639k is available to the OS) Consecutive calls would continue until EBX returns with 0, indicating that the memory map is complete. Compaq iPAQ Series of Desktop Personal Computers Review Copy - January 2001...

  • Page 141: Flash Rom Functions

    The INT 15, AX=E822h, BL=09h function is used to restore the power button to the state it was in prior to invoking the Disable (BL=08h) function. Entry: = E822h = 09h = 00 (Failure) = 86, call not supported Compaq iPAQ Series of Desktop Personal Computers Review Copy - January 2001...

  • Page 142: Accessing Cmos

    = Feature Bits Number (refer to Table 8-2) DS:SI = Pointer to buffer passing multiple byte features OUTPUT: (Successful) = Reserved = Value read (on a read) (Failure) = 86h, Function not supported Compaq iPAQ Series of Desktop Personal Computers Review Copy - January 2001...
  • Page 143 [1] Default Value will be pointer to buffer DS:SI (16-bit mode) or DS:(E)SI (32-bit mode) where actual data is held. Default Setting will be unique for each system. [2] Legacy-light system only. Compaq iPAQ Series of Desktop Personal Computers Review Copy - January 2001...

  • Page 144: Security Functions

    0100 = Bit 4 0001 = Bit 1 0101 = Bit 5 0010 = Bit 2 0110 = Bit 6 0011 = Bit 3 0111 = Bit 7 8-10 Compaq iPAQ Series of Desktop Personal Computers Review Copy - January 2001...

  • Page 145: Memory Detection And Configuration

    (for SDRAM) the number of internal banks. Memory Timing – For SDRAM, the memory controller requires the RAS pre-charge time and the RAS-to-CAS delay time. SPD bytes checked: 27and 29. Compaq iPAQ Series of Desktop Personal Computers 8-11 Review Copy - January 2001...

  • Page 146: Pnp Support

    (and require intervention) by the user. Table 8-2 shows the PnP functions supported (for detailed PnP information refer to the Compaq BIOS Technical Reference Guide): Table 8-3. PnP BIOS Functions Table 8-2.

  • Page 147: Smbios

    System Slots On Board Device Information System Configuration Options BIOS Language Information Physical Memory Array Memory Devices Memory Error Information Memory Array Mapped Addresses Memory Device Mapped Addresses Compaq iPAQ Series of Desktop Personal Computers 8-13 Review Copy - January 2001...

  • Page 148: Power Management Functions

    Off – The computer is not running and drawing practically no power at all. 8-14 Compaq iPAQ Series of Desktop Personal Computers Review Copy - January 2001...

  • Page 149: Acpi Support

    When an inactivity timer times out, an SMI is sent to the microprocessor to invoke the SMI handler. The SMI handler works with the APM driver and APM BIOS to take appropriate action based on which inactivity timer timed out. Compaq iPAQ Series of Desktop Personal Computers 8-15 Review Copy - January 2001...
  • Page 150 SMI and return the system to On: Keyboard (PS/2 only) Mouse (PS/2 only) Serial port Diskette drive Hard drive RTC Alarm Network interface controller 8-16 Compaq iPAQ Series of Desktop Personal Computers Review Copy - January 2001...

  • Page 151: Usb Legacy Support

    The system does not support hot-plugging of a USB keyboard, nor is a keyboard attached to a USB hub supported. A PS/2 keyboard and a USB keyboard can, however, be connected and used simultaneously. Compaq iPAQ Series of Desktop Personal Computers 8-17 Review Copy - January 2001...

  • Page 152: Bios Upgrading

    Create a system (bootable) diskette using the FORMAT A: /S command in DOS. Download the appropriate BIOS firmware from the Compaq web site. Copy the downloaded BIOS file and the flash utility file onto the boot diskette.

  • Page 153: Appendix Aerror Messages And Codes

    INTRODUCTION This appendix lists the error codes and a brief description of the probable cause of the error. NOTE: Errors listed in this appendix are applicable only for systems running Compaq BIOS. NOTE: Not all errors listed in this appendix may be applicable to a particular system model and/or configuration.

  • Page 154: Power-On Self Test (Post) Messages

    MBR has changed since the backup was made. Setup to Restore the MBR. 2000-Master boot Record hard drive The hard drive has been changed. Use Setup to create a backup of has changed the new hard drive. Compaq Personal Computers Changed - November 2000...

  • Page 155: System Error Messages (1 Xx - Xx A.5. Memory Error Messages (2 Xx - Xx

    CMOS not properly initialized (clk test) NOTE: A 102 message code may be caused by one of a variety of processor-related problems that may be solved by replacing the processor, although system board replacement may be needed. Compaq Personal Computers Changed – November 2000...

  • Page 156: Keyboard Error Messages

    No Make code observed 303-02 LED test, reset test failed 304-05 Cannot /disable repeat key feature 303-03 LED test, reset failed 304-06 Unable to return to Normal mode 303-04 LED test, LED command test failed Compaq Personal Computers Changed - November 2000...

  • Page 157: Printer Error Messages

    Gray scale test failed 506-01 80x25 mode, 8x8 cell test failed 514-01 White screen test failed 507-01 40x25 mode test failed 516-01 Noise pattern test failed See Table A-14 for additional graphics messages. Compaq Personal Computers Changed – November 2000...

  • Page 158: Diskette Drive Error Messages

    Comm port setup error (run Setup) 1101-10 COM1 set to invalid INT 1151-xx COM1 address conflict 1101-11 COM2 set to invalid INT 1152-xx COM2 address conflict 1101-12 DRVR/RCVR cntrl. signal failure 1155-xx COM port address conflict Compaq Personal Computers Changed - November 2000...

  • Page 159: Modem Communications Error Messages

    Modem time-out waiting for remote connection NOTES: [1] Local loopback mode [2] Analog loopback originate mode [3] Analog loopback answer mode [4] Modem auto originate test [5] Modem auto answer test [6] Modem direct connect test Compaq Personal Computers Changed – November 2000...

  • Page 160: System Status Error Messages

    1715-xx = Hard drive head select test 1792-xx = Se. controller failure 1716-xx = Hard drive conditional format test 1793-xx = Sec. Controller or disk failure 1717-xx = Hard drive ECC test 1799-xx = Invalid hard drive type Compaq Personal Computers Changed - November 2000...

  • Page 161: Hard Drive Error Messages

    Lightpen graphics test failed, no resp. 2477-xx AVGA data path test failed 2417-04 Lightpen graphics tst failed, invalid resp. 2478-xx AVGA BitBLT test failed 2418-01 EGA memory test failed 2480-xx AVGA linedraw test failed Compaq Personal Computers Changed – November 2000...

  • Page 162: Audio Error Messages (3206- Xx

    Ethernet reset test failed 6068-xx Token ring int. loopback test failed 6028-xx Ethernet int. loopback test failed 6069-xx Token ring ext. loopback test failed 6029-xx Ethernet ext. loopback test failed 6089-xx Token ring open A-10 Compaq Personal Computers Changed - November 2000...

  • Page 163: Scsi Interface Error Messages

    8601-09 Mouse loopback test failed 8601-04 Right mouse button is inoperative 8601-10 Pointing device is inoperative 8601-05 Right mouse button is stuck closed 8602-xx I/F test failed 8601-06 Left block not selected Compaq Personal Computers A-11 Changed – November 2000...
  • Page 164 Appendix A Error Messages and Codes This page is intentionally blank. A-12 Compaq Personal Computers Changed - November 2000...

  • Page 165: Appendix Bascii Character Set

    ASCII Character Set Symbol Symbol Symbol Symbol Blank Space ‘ “ ♥ ♦ ♣ ♠ & ‘ ¶ § ↑ ↓ → ← < ↔ > Continued Table B-1. ASCII Code Set (Continued) Compaq Personal Computers Changed - July 2000...
  • Page 166 94, 95 Shift and key w/corresponding symbol Key w/corresponding symbol 97-126 Key w/corresponding symbol or Shift and key w/corresponding symbol and Caps Lock active Ctrl - 128-255 Alt and decimal digit(s) of desired character Compaq Personal Computers Changed - July 2000...

  • Page 167: Appendix C Keyboard

    Appendix C KEYBOARD INTRODUCTION This appendix describes the Compaq keyboard that is included as standard with the system unit. The keyboard complies with the industry-standard classification of an “enhanced keyboard” and includes a separate cursor control key cluster, twelve “function” keys, and enhanced programmability for additional functions.

  • Page 168: Keystroke Processing

    (and the respective key strokes) are lost. Multi-byte sequences must fit entirely into the buffer before the respective keystroke can be registered. Compaq Personal Computers Changed - July 2000...

  • Page 169: Ps/2-Type Keyboard Transmissions

    IRQ1, which is processed by the interrupt logic and serviced by the CPU with an interrupt service routine. The service routine takes the appropriate action based on which key was pressed. Compaq Personal Computers Changed –- July 2000...

  • Page 170: Usb-Type Keyboard Transmissions

    Packets received at the system’s USB I/F and decoded as originating from the keyboard result in an SMI being generated. An SMI handler routine is invoked that decodes the data and transfers the information to the 8042 keyboard controller where normal (legacy) keyboard processing takes place. Compaq Personal Computers Changed - July 2000...

  • Page 171: Keyboard Layouts

    C.2.3 KEYBOARD LAYOUTS Figures C-3 through C-8 show the key layouts for keyboards shipped with Compaq systems. Actual styling details including location of the Compaq logo as well as the numbers lock, caps lock, and scroll lock LEDs may vary.

  • Page 172: Figure C-5. U.s. Englishw

    60 61 62 63 64 65 66 67 68 69 70 72 73 74 76 77 78 79 80 81 82 83 84 85 88 89 90 97 98 99 111 112 Figure C–6. National Windows (102W-Key) Keyboard Key Positions Compaq Personal Computers Changed - July 2000...

  • Page 173: Figure C-7. 7-Button Easya

    Btn 2 Btn 3 Btn 4 Btn 5 Btn 6 Btn 7 Btn 8 NOTE: Main key positions same as Windows Enhanced (Figures C-5 or C-6). Figure C–8. 8-Button Easy Access Keyboard Layout Compaq Personal Computers Changed –- July 2000...

  • Page 174: Keys

    The key that is pressed to resume operation is discarded. This function may be ignored by the application. The Esc, Fn (function), Insert, Home, Page Up/Down, Delete, and End keys operate at the discretion of the application software. Compaq Personal Computers Changed - July 2000...
  • Page 175 The combination keystroke of the Window Logo + 1-0 keys are reserved for OEM use for auxiliary functions (speaker volume, monitor brightness, password, etc.). Key position 112 (marked with an application window icon ) is used in combination with other keys for invoking Windows application functions. Compaq Personal Computers Changed –- July 2000...
  • Page 176 7-Button Easy Access Keyboard: Button # Description Default Function Check email Email Go to community Emoney Extra web site Compaq web site Go to favorite web site AltaVista web site Internet search Search Instant answer Travel expenses E-commerce Shopping 8-Button Easy Access Keyboard:...

  • Page 177: Keyboard Commands

    F0h (i.e., Break code for 0Eh is “F0h 0Eh”). ♦ Mode 3: Mode 3 generates a different scan code set from Modes 1 and 2. Code translation must be disabled since translation for this mode cannot be done. Compaq Personal Computers C-11 Changed –- July 2000...

  • Page 178: Table C-2. Keyboard Scanc

    E0 F0 12 E0 4A/E0 F0 4A E0 12 [1] 37/B7 7C/F0 7C 7E/na 4A/CA 7B/F0 7B 84/na 0F/8F 0D/F0 0D 0D/na 10/90 15/F0 15 15/na Continued ([x] Notes listed at end of table.) C-12 Compaq Personal Computers Changed - July 2000...
  • Page 179 1A/F0 1A 1A/F0 1A 2D/AD 22/F0 22 22/F0 22 2E/AE 21/F0 21 21/F0 21 2F/AF 2A/F0 2A 2A/F0 2A 30/B0 32/F0 32 32/F0 32 Continued ([x] Notes listed at end of table.) Compaq Personal Computers C-13 Changed –- July 2000...
  • Page 180 E0 F0 12 E0 2F/E0 F0 2F E0 12 [5] E0 2A E0 5D E0 DD E0 AA [6] E0 12 E0 2F/E0 F0 2F E0 F0 12 [6 Continued ([x] Notes listed at end of table.) C-14 Compaq Personal Computers Changed - July 2000...
  • Page 181 [5] Left Shift key active. For active right Shift key, substitute F0 12/12 make/break codes for F0 59/59 codes. [6] Num Lock key active. [7] Windows keyboards only. [8] 7-Button Easy Access keyboard. [9] 8-Button Easy Access keyboard. Compaq Personal Computers C-15 Changed –- July 2000...

  • Page 182: Connectors

    Appendix C Keyboard CONNECTORS Two types of keyboard interfaces are used in Compaq systems: PS/2-type and USB-type. System units that provide a PS/2 connector will ship with a PS/2-type keyboard but may also support simultaneous connection of a USB keyboard. Systems that do not provide a PS/2 interface will ship with a USB keyboard.
  • Page 183 INDEX abbreviations, 1-4 Universal Serial Bus interface, 5-25 AC97 link bus, 5-28 cooling, 4-25 ACPI, 5-34 core voltage, 3-2, 3-3 acronyms, 1-4 Desktop Management, 8-3 AOL requirements, 5-33 device ID (PCI), 4-4 APIC, 4-8 DIMM, 3-5 APM, 5-34 DIMM detection, 8-11 APM BIOS functions, 8-17 DIMM support, 8-5 APM BIOS support, 8-15...
  • Page 184 USB, 2-18, 5-22 ACPI, 4-23 interrupts network interface controller (NIC), 5-34 maskable (IRQn), 4-7 power management BIOS function, 8-14 nonmaskable (NMI, SMI), 4-9 power states, system, 8-14 key (keyboard) functions, C-8 power supply, 7-1 keyboard, C-1 power supply assembly, 7-2 keyboard (micro)processor, C-2 PPGA370, 3-2 keyboard layouts, C-5...
  • Page 185 USB interface, 5-22 wake up events, 7-3 USB keyboard, C-4 wake up, remote, 5-34 USB legacy support, 8-17 Windows keys, C-9 USB ports, 2-18 WOL, 7-3 vender ID (PCI), 4-4 ZIF socket, 2-14 voltage, core, 3-2, 3-3...
  • Page 186 This page is intentionally blank.

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