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Technical Reference Guide
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2000 Compaq Computer Corporation
All rights reserved.
Compaq and the Compaq logo are regiserted in the U.S. Patent and Trademark Office.
iPAQ is a trademark of Compaq Information Technologies Group, L.P.
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trademarks of Microsoft Corporation.
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Technical Reference Guide
For the
Compaq iPAQ Internet Device
First Edition – March 2000
Document Number 127M-0300A-WWEN
This guide provides technical information about the Compaq iPAQ Family of Internet Devices.
This document includes information regarding system design, function, and features that can be
used by programmers, engineers, technicians, and system administrators.
This guide and any applicable addendum are available online at the following location:
The chapters of this guide primarily describe the hardware and firmware elements and primarily
deal with the system board and the power supply assembly. The appendices contain general
information about standard peripheral devices such as the keyboard.
1.1.2 ADDITIONAL INFORMATION SOURCES
For more information on chipset components mentioned in this guide refer to the indicated
manufacturers’ documentation, which may be available at the following online sources:
Standard Microsystems Corporation: http://www.smsc.com
1.2 MODEL NUMBERING CONVENTION
The model numbering convention for Compaq iPAQ units is as follows:
iPAQ/XNNN/Nb/N/NNN
Memory (in MB)
Operating system: 4 = Win NT 4.0; 9 = Win95/98
Chipset type (b = 810e)
Hard drive size (in GB)
Processor speed (in MHz)
Processor type: C = Celeron; P = Pentium
Compaq iPAQ Family of Internet Devices
1-1
First Edition - March 2000
Chapter 1 Introduction
1.3 NOTATIONAL CONVENTIONS
1.3.1 VALUES
Hexadecimal values are indicated by a numerical or alpha-numerical value followed by the letter
“h.” Binary values are indicated by a value of ones and zeros followed by the letter “b.”
Numerical values that have no succeeding letter can be assumed to be decimal.
1.3.2 RANGES
Ranges or limits for a parameter are shown using the following methods:
Example A:Bits <7..4> = bits 7, 6, 5, and 4.
Example B:IRQ3-7, 9 = IRQ signals 3 through 7, and IRQ signal 9
1.3.3 SIGNAL LABELS
Signal names are indicated using abbreviations, acronyms, or, if possible, the full signal name in
all capital letters. Signals that are meant to be active (asserted) low are indicated with a dash
immediately following the name.
1.3.4 REGISTER NOTATION AND USAGE
This guide uses standard Intel naming conventions in discussing the microprocessor’s (CPU)
internal registers. Registers that are accessed through programmable I/O using an indexing
scheme are indicated using the following format:
03C5.17h
Index port
Data port
In the example above, register 03C5.17h is accessed by writing the index port value 17h to the
index address (03C4h), followed by a write to or a read from port 03C5h.
1.3.5 BIT NOTATION
Bit values are labeled with bit <0> representing the least-significant bit (LSb) and bit <7>
representing the most-significant bit (MSb) of a byte. Bytes, words, double words, and quad
words are typically shown with most-significant portions on the left or top and the leastsignificant portions on the right or bottom respectively.
1-2
Compaq iPAQ Family of Internet Devices
First Edition – March 2000
1.4 COMMON ACRONYMS AND ABBREVIATIONS
Table 1-1 lists the acronyms and abbreviations used in this guide.
Technical Reference Guide
Table 1–1.
Acronyms and Abbreviations
Table 1-1.
Acronyms and Abbreviations
Acronym/AbbreviationDescription
Aampere
ACalternating current
ACPIAdvanced Configuration and Power Interface
A/Danalog-to-digital
AGPAccelerated graphics port
APIapplication programming interface
APMadvanced power management
AOLAlert-ON-LAN
ASICapplication-specific integrated circuit
AT1) attention (modem commands) 2) 286-based PC architecture
ATAAT attachment (IDE protocol)
ATAPIAT attachment w/packet interface extensions
AVIaudio-video interleaved
AVGAAdvanced VGA
BATBasic assurance test
BCDbinary-coded decimal
BIOSbasic input/output system
bissecond/new revision
BitBLTbit block transfer
BNCBayonet Neill-Concelman (connector)
bps or b/sbits per second
BSPBootstrap processor
BTOBuilt to order
CAScolumn address strobe
CDcompact disk
CD-ROMcompact disk read-only memory
CDScompact disk system
CFcarry flag
CGAcolor graphics adapter
Chchannel
cmcentimeter
CMCcache/memory controller
CMOScomplimentary metal-oxide semiconductor (configuration memory)
Cntlrcontroller
Cntrlcontrol
codec compressor/decompressor
CPQCompaq
CPUcentral processing unit
CRTcathode ray tube
CSMCompaq system management / Compaq server management
CTOConfigure to order
DAAdirect access arrangement
DACdigital-to-analog converter
DCdirect current
DCHDOS compatibility hole
DDCDisplay Data Channel
DFdirection flag
Continued
Compaq iPAQ Family of Internet Devices
First Edition - March 2000
1-3
Chapter 1 Introduction
Table 1-1.
Acronym/AbbreviationDescription
DIMMdual inline memory module
DINDeutche IndustriNorm (connector standard)
DIPdual inline package
DMAdirect memory access
DMIDesktop management interface
dpidots per inch
DRAMdynamic random access memory
DRQdata request
EDIDextended display identification data
EDOextended data out (RAM type)
EEPROMelectrically eraseable PROM
EGAenhanced graphics adapter
EIAElectronic Industry Association
EISAextended ISA
EPPenhanced parallel port
EIDEenhanced IDE
ESCDExtended System Configuration Data (format)
EVEnvironmental Variable (data)
ExCAExchangeable Card Architecture
FIFOfirst in / first out
FLflag (register)
FMfrequency modulation
FPMfast page mode (RAM type)
FPUFloating point unit (numeric or math coprocessor)
FPSFrames per second
ftfoot
GBgigabyte
GMCHGraphics/memory controller hub
GNDground
GPIOgeneral purpose I/O
GPOCgeneral purpose open-collector
GARTGraphics address re-mapping table
GUIgraphics user interface
hhexadecimal
HWhardware
hexhexadecimal
Hzhertz
ICHI/O controller hub
IDEintegrated drive element
IEEEInstitute of Electrical and Electronic Engineers
IFinterrupt flag
I/Finterface
ininch
INTinterrupt
I/Oinput/output
IPLinitial program loader
IrDAInfraRed Data Association
IRQinterrupt request
ISAindustry standard architecture
JEDECJoint Electron Device Engineering Council
Kb / KBkilobits / kilobytes (x 1024 bits / x 1024 bytes)
Kb/skilobits per second
kgkilogram
KHzkilohertz
kvkilovolt
Acronyms and Abbreviations
Continued
Continued
1-4
Compaq iPAQ Family of Internet Devices
First Edition – March 2000
Technical Reference Guide
Table 1-1.
Acronym/AbbreviationDescription
lbpound
LANlocal area network
LCDliquid crystal display
LEDlight-emitting diode
LIFlow insertion force (socket)
LPCLow pin count
LSIlarge scale integration
LSb / LSBleast significant bit / least significant byte
LUNlogical unit (SCSI)
MCHMemory controller hub
MMXmultimedia extensions
MPEGMotion Picture Experts Group
msmillisecond
MSb / MSBmost significant bit / most significant byte
muxmultiplex
MVAmotion video acceleration
MVWmotion video window
n
NICnetwork interface card/controller
NiCadnickel cadmium
NiMHnickel-metal hydride
NMInon-maskable interrupt
NRZINon-return-to-zero inverted
nsnanosecond
NTnested task flag
NTSCNational Television Standards Committee
NVRAMnon-volatile random access memory
OEMoriginal equipment manufacturer
OSoperating system
PAL1. programmable array logic 2. phase altering line
PCInternet Device
PCIperipheral component interconnect
PCMpulse code modulation
PCMCIAInternet Device Memory Card International Association
PFparity flag
PINpersonal identification number
PIOProgrammed I/O
POSTpower-on self test
PROMprogrammable read-only memory
PTRpointer
RAMrandom access memory
RASrow address strobe
rcvrreceiver
RFresume flag
RGBred/green/blue (monitor input)
RHRelative humidity
RIMMRDRAM inline memory module
RMSroot mean square
ROMread-only memory
RPMrevolutions per minute
RTCreal time clock
R/Wread/write
Acronyms and Abbreviations
variable parameter/value
Continued
Continued
Compaq iPAQ Family of Internet Devices
First Edition - March 2000
1-5
Chapter 1 Introduction
1-6
Compaq iPAQ Family of Internet Devices
First Edition – March 2000
Technical Reference Guide
Table 1-1.
Acronym/AbbreviationDescription
SCSIsmall computer system interface
SDRAMSynchronous Dynamic RAM
SECSingle Edge-Connector
SECAMsequential colour avec memoire (sequential color with memory)
SFsign flag
SGRAMSynchronous Graphics RAM
SIMDSingle instruction multiple data
SIMMsingle in-line memory module
SITsystem information table
SMARTSelf Monitor Analysis Report Technology
SMIsystem management interrupt
SMMsystem management mode
SMRAMsystem management RAM
SPDserial presence detect
SPPstandard parallel port
SRAMstatic RAM
SSEStreaming SIMD extensions
STNsuper twist pneumatic
SVGAsuper VGA
SWsoftware
TADtelephone answering device
TAFITemperature-sensing And Fan control Integrated circuit
TAMtelephone answering machine
TCPtape carrier package
TFtrap flag
TFTthin-film transistor
TIATelecommunications Information Administration
TPEtwisted pair ethernet
TPItrack per inch
TTLtransistor-transistor logic
TVtelevision
TXtransmit
UARTuniversal asynchronous receiver/transmitter
UDMAUltra DMA
URLUniform resource locator
us / µsmicrosecond
USBUniversal Serial Bus
UTPunshielded twisted pair
Vvolt
VESAVideo Electronic Standards Association
VGAvideo graphics adapter
vibvibrato
VLSIvery large scale integration
VRAMVideo RAM
Wwatt
WOLWake on LAN
WRAMWindows RAM
ZFzero flag
ZIFzero insertion force (socket)
Acronyms and Abbreviations
Continued
Compaq iPAQ Family of Internet Devices
First Edition - March 2000
1-7
Chapter 2
SYSTEM OVERVIEW
2.Chapter 2 SYSTEM OVERVIEW
2.1 INTRODUCTION
The Compaq iPAQ Family of Internet Devices provides affordable business solutions with the
focus on internet access and mainstream performance. Based on an Intel Celeron or Pentium III
processor with the Intel 810e chipset, these systems are designed to maximize the effectiveness of
internet and intranet usage while simplifying system management.
Technical Reference Guide
Figure 2–1.
This chapter includes the following topics:
♦
Features and options (2.2)page 2-2
♦
Mechanical design (2.3)page 2-4
♦
System architecture (2.4)page 2-8
♦
Specifications (2.5)page 2-13
Compaq iPAQ Family of Internet Devices
Compaq iPAQ Internet Device with Monitor
First Edition - March 2000
2-1
Chapter 2 System Overview
2.2 FEATURES AND OPTIONS
This section describes the standard features and available options.
2.2.1 STANDARD FEATURES
The following standard features are available on all models:
♦
Celeron or Pentium III processor
♦
810e Chipset
♦
Two DIMM sockets for system memory
♦
AC’97 audio subsystem w/Compaq Premier Sound and front panel mic and headphone jacks
♦
MuliBay device mount w/hot-swap support
♦
Extended IDE controller supporting UATA/66 mode
♦
Hard drive fault prediction
♦
Two USB ports on front panel
♦
Network interface controller
♦
VGA analog output (1600 x 1200 max resolution)
♦
APM 1.2 power management support
♦
Plug ’n Play compatible (with ESCD support)
♦
Intelligent Manageability support
♦
Energy Star compliant
♦
Security features including:
•
Setup and power-on passwords
•
DriveLock for MultiBay hard drive
•
I/O interface disabling
•
Administrator password
•
Network service boot
•
Asset tracking tag
•
UUID
•
Cable lock provision
♦
Compaq Easy-Access keyboard w/Windows support
♦
Mouse
Table 2-1 shows the differences in features between the iPAQ models:
Table 2-1.
4-MB Display cacheNoYesNoYes
Rear panel USB ports3300
Serial port0011
Parallel port0011
Keyboard/mouse connectionUSBUSBPS/2PS/2
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. There are slight
differences between the legacy-light and legacy-free models, most notably in the rear panel
layouts.
NOTE:
For detailed information on servicing the Internet Device refer to the applicable
Maintenance and Service Guide.
2.3.1 CABINET LAYOUTS
2.3.1.1 Front View
1
4
7
2
3
5
6
ItemDescription
1Power Button
2Power LED
3Hard drive activity LED
4MultiBay device bay (accepts 5.25”/12.7 mm storage device)
5Microphone In Jack
6Headphone Out Jack
7USB port 3 jack
8USB port 4 jack
Figure 2–2.
2-4
Compaq iPAQ Family of Internet Devices
Compaq iPAQ Internet Device, Front View
8
First Edition – March 2000
2.3.1.2 Rear Views
Technical Reference Guide
1
3
5
7
11
13
ItemDescriptionItemDescription
1Audio line output2Audio line input
3Network activity LED indicator4Network I/F jack
5Network speed LED indicator6VGA monitor connector
7Parallel I/F connector8Serial I/F connector
9USB port connectors (left-to-right; 0,1, 2)10MultiBay device eject button
11PS/2 mouse connector12PS/2 keyboard connector
13AC line in connector14Line voltage select switch
2
4
6
8
10
12
14
13
1
3
5
9
2
4
6
10
14
Legacy-FreeLegacy-Light
Figure 2–3.
Compaq iPAQ Internet Device, Rear Views
Compaq iPAQ Family of Internet Devices
First Edition - March 2000
2-5
Chapter 2 System Overview
2.3.2 CHASSIS LAYOUT
The internal assemblies are accessible from the right side of the system unit. The right side
(carbon-colored) cover is easily removable 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.
NOTE:
For a detailed description on servicing the unit refer to the applicable
Compaq iPAQ Internet Device Chassis Layout, Ride Side View
First Edition – March 2000
2.3.3 SYSTEM BOARD LAYOUTS
The Compaq iPAQ Internet Device uses a FlexATX-type (9.0 x 7.5 inch) system board. Two
variations are available; a legacy-light board and a legacy-free board.
Technical Reference Guide
124
22
21
20
19
18
171516
Legacy Light (PCA# 161014)
Refer to Chapter 7 “Power and Signal Distribution” for header pinouts.
NOTE:
3
ItemDescription
1USB ports 3 and 4 (front panel) header
2Battery
3BIOS ROM configuration jumper
4Speaker connector
5Audio microphone/headphone header
6Audio line out jack
7Audio line in jack
8Network connector
The Compaq iPAQ Internet Device features an Intel Celeron or Pentium III processor and the
810e chipset. As indicated in the following table and shown in Figure 2-6, four architectural
configurations are available:
♦
Legacy-free with Celeron processor
♦
Legacy-free with Pentium III processor
♦
Legacy-light with Celeron processor
♦
Legacy-light with Pentium III processor
Legacy-free systems provide five Universal Serial Bus (USB) ports for connecting peripherals
(including the supplied USB mouse and USB keyboard). Legacy light systems provide two USB
ports along with the traditional PS/2 connectors for the supplied mouse and keyboard as well as
parallel and serial port connectors.
All systems use the 810e chipset. The 810e chipset includes the 82810e-DC100 GMCH designed
to provide control for SDRAM and also integrates an AGP 2X graphics controller. Pentium IIIbased systems come with an additional 4-MB display cache to compliment the graphics
controller.
The 810e chipset also includes an 82801 I/O Controller Hub (ICH) that provides two IDE
interfaces, two USB interfaces, and a PCI bus controller. The 82802 Firmware Hub (FWH)
component is loaded with Compaq BIOS
Table 2-1 lists differences between system architectures: