Portwell ROBO-503 User manual

Part No. 2047341005
User’s Manual
ROBO-503/ROBO-503N
All-in-One NS Geode GX1 Single Board with LCD, AC97 Audio,
& Dual 10/100 Base-Tx Ethernet
6th Ed. –2July 2003

ROBO-503/ROBO-503N
Portwell Inc.
FCC STATEMENT
THIS DEVICE COMPLIES WITH PART 15 FCC RULES. OPERATION IS SUBJECT TO
THE FOLLOWING TWO CONDITIONS:
(1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE.
(2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE
RECEIVED INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.
THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPLY WITH THE LIMITS
FOR A CLASS "A" DIGITAL DEVICE, PURSUANT TO PART 15 OF THE FCC RULES.
THESE LIMITS ARE DESIGNED TO PROVIDE REASONABLE PROTECTION AGAINTST
HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATED IN A COMMERCIAL
ENVIRONMENT. THIS EQUIPMENT GENERATES, USES, AND CAN RADIATE RADIO
FREQUENCY ENERGY AND, IF NOT INSTATLLED AND USED IN ACCORDANCE WITH
THE INSTRUCTION MANUAL, MAY CAUSE HARMFUL INTERFERENCE TO RADIO
COMMUNICATIONS.
OPERATION OF THIS EQUIPMENT IN A RESIDENTIAL AREA IS LIKELY TO CAUSE
HARMFUL INTERFERENCE IN WHICH CASE THE USER WILL BE REQUIRED TO
CORRECT THE INTERFERENCE AT HIS OWN EXPENSE.

User’s Manual
Portwell Inc.
Copyright Notice
Copyright 2000, 2001, 2002, 2003, Portwell Inc., ALL RIGHTS RESERVED.
No part of this document may be reproduced, copied, translated, or transmitted in any form
or by any means, electronic or mechanical, for any purpose, without the prior written
permission of the original manufacturer.
Trademark Acknowledgement
Brand and product names are trademarks or registered trademarks of their respective
owners.
Disclaimer
Portwell Inc. reserves the right to make changes, without notice, to any product, including
circuits and/or software described or contained in this manual in order to improve design
and/or performance. Portwell Inc. assumes no responsibility or liability for the use of the
described product(s), conveys no license or title under any patent, copyright, or mask
mask work rights to these products, and makes no representations or warranties that these
products are free from patent, copyright, or mask work right infringement, unless otherwise
specified. Applications that are described in this manual are for illustration purposes only.
Portwell Inc. makes no representation or warranty that such application will be suitable for
the specified use without further testing or modification.
Life Support Policy
Portwell’s PRODUCTS ARE NOT FOR USE AS CRITICAL COMPONENTS IN LIFE
SUPPORT DEVICES OR SYSTEMS WITHOUT THE PRIOR WRITTEN APPROVAL
OF Portwell Inc.
As used herein:
1. Life support devices or systems are devices or systems which, (a) are intended for
surgical implant into body, or (b) support or sustain life and whose failure to perform,
when properly used in accordance with instructions for use provided in the labelling, can
be reasonably expected to result in significant injury to the user.
2. A critical component is any component of a life support device or system whose failure to
perform can be reasonably expected to cause the failure of the life support device or
system, or to affect its safety or effectiveness.

ROBO-503/ROBO-503N
Portwell Inc.
A Message to the Customer
Portwell Customer Services
Each and every Portwell’sproduct is built to the most exacting specifications to ensure
reliable performance in the harsh and demanding conditions typical of industrial
environments. Whether your new Portwell device is destined for the laboratory or the factory
floor, you can be assured that your product will provide the reliability and ease of operation
for which the name Portwell has come to be known.
Your satisfaction is our primary concern. Here is a guide to Portwell’s customer services. To
ensure you get the full benefit of our services, please follow the instructions below carefully.
Technical Support
We want you to get the maximum performance from your products. So if you run into
technical difficulties, we are here to help. For the most frequently asked questions, you can
easily find answers in your product documentation. These answers are normally a lot more
detailed than the ones we can give over the phone. So please consult this manual first.
To receive the latest version of the user manual, please visit our Web site at:
http://www.portwell.com/

User’s Manual
Portwell Inc.
Product Warranty
Portwell warrants to you, the original purchaser, that each of its products will be free from
defects in materials and workmanship for two yearsfrom the date of purchase.
This warranty does not apply to any products which have been repaired or altered by
persons other than repair personnel authorized by Portwell, or which have been subject to
misuse, abuse, accident or improper installation. Portwell assumes no liability under the
terms of this warranty as a consequence of such events. Because of Portwell’s high quality-
control standards and rigorous testing, most of our customers never need to use our repair
service. If an Portwell’sproduct is defective, it will be repaired or replaced at no charge
during the warranty period. For out-of-warranty repairs, you will be billed according to the
cost of replacement materials, service time, and freight. Please consult your dealer for
more details. If you think you have a defective product, follow these steps:
1. Collect all the information about the problem encountered. (For example, CPU type and
speed, Portwell’sproducts model name, hardware & BIOS revision number, other
hardware and software used, etc.) Note anything abnormal and list any on-screen
messages you get when the problem occurs.
2. Call your dealer and describe the problem. Please have your manual, product, and any
helpful information readily available.
3. If your product is diagnosed as defective, obtain an RMA (return material authorization)
number from your dealer. This allows us to process your good return more quickly.
4. Carefully pack the defective product, a complete Repair and Replacement Order Card
and a photocopy proof of purchase date (such as your sales receipt) in a shippable
container. A product returned without proof of the purchase date is not eligible for
warranty service.
5. Write the RMA number visibly on the outside of the package and ship it to your
dealer.

ROBO-503/ROBO-503N
Portwell Inc.
Packing List
Before you begin installing your single board, please make sure that the following materials
have been shipped:
n1 ROBO-503/ROBO-503N All-in-One NS Geode GX1 Computing Module
n1 Quick Installation Guide
n1Audio jacks and USB connector daughter board
n1 CD-ROM contains the followings:
—User’s Manual (this manual in PDF file)
—Ethernet driver and utilities
—VGA drivers and utilities
—Audio drivers and utilities
—Latest BIOS (as of the CD-ROM was made)
nCable set includes the followings:
—1 PS/2 keyboard and mouse Y cable (6-pin, Mini-DIN)
—1 IDE HDD cable (44-pin, pitch 2.0mm)
—1 FDD cable (34-pin, pitch 2.0mm)
—1 bracket with one Printer port cable (26-pin, pitch 2.0mm) and one Serial port cable
(10-pin, pitch 2.0mm)
—2 flat cables (10-pin, pitch 2.0mm) for connecting the Audio/USB daughter board to
the ROBO-503/ROBO-503N
If any of these items are missing or damaged, please contact your distributor or sales
representative immediately.

User’s Manual
Portwell Inc.
1. MANUAL OBJECTIVES....................................................................................... 1
2. INTRODUCTION................................................................................................. 2
2.1 System Overview ............................................................................................ 2
2.2 System Specifications..................................................................................... 3
2.3 Architecture Overview..................................................................................... 6
2.3.1 CPU/GX1 and CS5530A...................................................................................................7
2.3.2 XPRESS Graphics............................................................................................................7
2.3.3 PCI Bus.............................................................................................................................7
2.3.4 PC/104 Interface...............................................................................................................8
2.3.5 SDRAM Interface..............................................................................................................8
2.3.6 TFT Panel Interface..........................................................................................................8
2.3.7 Audio.................................................................................................................................8
2.3.8 IDE Interface.....................................................................................................................9
2.3.9 USB..................................................................................................................................9
2.3.10 Ethernet............................................................................................................................9
2.3.11 Winbond W83977F-A.......................................................................................................9
2.3.12 Compact Flash Interface.................................................................................................10
3. HARDWARE CONFIGURATION..........................................................................11
3.1 Installation Procedure....................................................................................11
3.2 Safety Precautions.........................................................................................11
3.2.1 Warning!.........................................................................................................................11
3.2.2 Caution!..........................................................................................................................11
3.3 Attentions ......................................................................................................11
3.4 Installing DRAM (SODIMMs)...........................................................................12
3.4.1 System Memory..............................................................................................................12
3.4.2 Supplementary Information About SODIMM...................................................................12
3.4.3 Memory Installation Procedures .....................................................................................12
3.5 Jumper & Connector......................................................................................13
3.5.1 Jumper & Connector Layout...........................................................................................13
3.5.2 Jumper & Connector List................................................................................................14
3.6 Setting Jumpers.............................................................................................16
3.6.1 Clear CMOS (J1 / Pin 1, 3, 5).........................................................................................16
3.6.2 LCD Clock Signal Select (J1 / Pin 2, 4, 6)......................................................................17
3.6.3 LCD Driving & Backlight Voltage Select (J2)..................................................................17
3.6.4 COM2 RS-232/422/485 Select (J3, J4)..........................................................................18
3.7 Connector Definitions....................................................................................19
3.7.1 Power Connector (PWR1)..............................................................................................19
3.7.2 Auxiliary Power Connector (PWR2)................................................................................19
3.7.3 Parallel Port Connector (CN1)........................................................................................19

ROBO-503/ROBO-503N
Portwell Inc.
3.7.4 DB25 Parallel Port Connector (CN1)..............................................................................20
3.7.5 Signal Description –Parallel Port Connector (CN1).......................................................21
3.7.6 Floppy Connector (CN2).................................................................................................22
3.7.7 Signal Description –Floppy Connector (CN2)................................................................23
3.7.8 TFT Panel Connector (CN3)..........................................................................................24
3.7.9 Signal Description –TFT Panel Connector (CN3).........................................................24
3.7.10 Signal Configuration –TFT Panel Displays (CN3).........................................................25
3.7.11 IrDA Connector (CN4).....................................................................................................26
3.7.12 Signal Description –IrDA Connector (CN4)....................................................................26
3.7.13 LCD Inverter Connector (CN5).......................................................................................26
3.7.14 Signal Description –LCD Inverter Connector (CN5)......................................................26
3.7.15 PC/104 Connector (CN6, CN8)......................................................................................27
3.7.16 Signal Description –PC/104 Connector (CN6, CN8).....................................................28
3.7.17 Fan Connector (CN7).....................................................................................................31
3.7.18 IDE Connector (CN9)......................................................................................................32
3.7.19 Signal Description –IDE Connector (CN9).....................................................................33
3.7.20 Pin Header Serial Port 2 Connector in RS-232 Mode (CN10)........................................34
3.7.21 Serial Port 2 with External DB9 Connector (CN10)........................................................34
3.7.22 Signal Description –Serial Port 2 –COM2 in RS-232 Mode (CN10).............................34
3.7.23 Pin Header Serial Port 2 Connector in RS-422 Mode (CN10)........................................35
3.7.24 Signal Description –Serial Port 2 –COM2 in RS-422 Mode (CN10).............................35
3.7.25 Pin Header Serial Port 2 Connector in RS-485 Mode (CN10)........................................36
3.7.26 Signal Description –Serial Port 2 –COM2 in RS-485 Mode (CN10).............................36
3.7.27 Audio Connector (CN11) ................................................................................................37
3.7.28 Signal Description –Audio Connector (CN11) ...............................................................37
3.7.29 USB Connector (CN12)..................................................................................................37
3.7.30 Signal Description –USB Connector (CN12).................................................................37
3.7.31 Keyboard and PS/2 Mouse Connector (CN13) ..............................................................38
3.7.32 Signal Description –Keyboard & PS/2 Mouse Connectors (CN13)...............................38
3.7.33 DB9 Serial Port 1 Connector in RS-232 Mode (CN14)...................................................39
3.7.34 Signal Description –Serial Port 1 –COM1 in RS-232 Mode (CN14).............................39
3.7.35 CRT Connector (CN15)..................................................................................................40
3.7.36 Signal Description –CRT Connector (CN15).................................................................40
3.7.37 10/100BASE-Tx Ethernet Connector (CN16, CN17)......................................................41
3.7.38 Signal Description –10/100Base-Tx Ethernet Connector (CN16, CN17)......................41
3.7.39 CD-ROM Audio Input Connector (J5).............................................................................41
3.7.40 Signal Description –CD-ROM Audio Input Connector (J5)............................................41
3.7.41 LCD Backlight Brightness Adjustment Connector (VR1) ................................................42
4. AWARD BIOS SETUP ........................................................................................43
4.1 Starting Setup................................................................................................43
4.2 Using Setup ...................................................................................................44
4.3 Getting Help...................................................................................................44
4.4 In Case of Problems.......................................................................................44
4.5 Main Menu .....................................................................................................45
4.5.1 Setup Items.....................................................................................................................45
4.5.2 Standard CMOS Setup...................................................................................................47

User’s Manual
Portwell Inc.
4.5.3 BIOS Features Setup......................................................................................................50
4.5.4 Supervisor/User Password Setting.................................................................................54
4.5.5 Chipset Setup.................................................................................................................55
4.5.6 Integrated Peripherals Features Setup...........................................................................56
4.5.7 Power Management Setup.............................................................................................60
4.5.8 PnP/PCI Configuration Setup.........................................................................................63
5. DRIVER INSTALLATION ....................................................................................65
5.1 Driver installation for Ethernet Adapter..........................................................65
5.1.1 Windows 9x....................................................................................................................65
5.1.2 Windows NT 4.0 Ethernet Installation ............................................................................70
5.2 Driver Installation for Display Adapter............................................................76
5.2.1 Windows 9x....................................................................................................................76
5.2.2 Windows NT 4.0 Display Installation..............................................................................81
5.3 Driver Installation for Audio Adapter..............................................................85
5.3.1 Windows 9x....................................................................................................................85
5.3.2 Windows NT 4.0 Audio Installation.................................................................................94
6. MEASUREMENT DRAWING...............................................................................97

ROBO-503/ROBO-503N
Portwell Inc.
APPENDIX A: BIOS REVISIONS .................................................................................98
APPENDIX B: SYSTEM RESOURCES.........................................................................99
Memory Map................................................................................................................................99
I/O –Map ...................................................................................................................................100
Interrupt Usage ..........................................................................................................................101
DMA-channel Usage..................................................................................................................102
APPENDIX C: PROGRAMMING THE WATCHDOG TIMER ........................................103
Introduction ................................................................................................................................103
Configure Register.....................................................................................................................103
Programming Watchdog Timer ..................................................................................................104
Demo Program 1 (Micro-Assembly Language) ..........................................................................105
Demo Program 2 (C Language).................................................................................................108
APPENDIX D: AWARD BIOS ERROR MESSAGE.......................................................110
Beep 110
BIOS ROM Checksum Error –System Halted...........................................................................110
CMOS Battery Failed.................................................................................................................110
CMOS Checksum Error –Defaults Loaded...............................................................................110
CPU at nnnn ..............................................................................................................................110
Display Switch Is Set Incorrectly................................................................................................110
Press ESC to Skip Memory Test ...............................................................................................110
Floppy Disk(s) Fail.....................................................................................................................111
Hard Disk(s) Initializing; Please Wait a Moment.........................................................................111
Hard Disk(s) Install Failure.........................................................................................................111
Hard Disk(s) Diagnosis Fail .......................................................................................................111
Keyboard Error or No Keyboard Present...................................................................................111
Keyboard Is Locked Out –Unlock The Key...............................................................................111
Memory Test..............................................................................................................................111
Memory Test Fail.......................................................................................................................111
Override Enabled –Defaults Loaded.........................................................................................111
Press TAB to Show POST Screen ............................................................................................112
Primary Master Hard Disk Fail...................................................................................................112
Primary Slave Hard Disk Fail.....................................................................................................112
Resuming from Disk, Press TAB to Show POST Screen ..........................................................112
Secondary Master Hard Disk Fail..............................................................................................112
Secondary Slave Hard Disk Fail................................................................................................112
Proprietary Notice and Disclaimer..............................................................................................112
APPENDIX E: AWARD BIOS POST CODES..............................................................113
APPENDIX F: AUDIO / USB DAUGHTER BOARD USER’S GUIDE .............................118
Jumper & Connector Layout ................................................................................118
Jumper & Connector List .....................................................................................118
Measurement Drawing..........................................................................................119

ROBO-503/ROBO-503N
ROBO-503/ROBO-503N User’s Manual 1
1. Manual Objectives
This manual describes in detail the ROBO-503/ROBO-503N Single Board.
We have tried to include as much information as possible but we have not duplicated
information that is provided in the standard IBM Technical References, unless it proved to
be necessary to aid in the understanding of this board.
We strongly recommend that you study this manual carefully before attempting to interface
with ROBO-503 or change the standard configurations. Whilst all the necessary information
is available in this manual we would recommend that unless you are confident, you contact
your supplier for guidance.
Please be aware that it is possible to create configurations within the CMOS RAM that
make booting impossible. If this should happen, clear the CMOS settings, (see the
description of the Jumper Settings for details).
If you have any suggestions or find any errors concerning this manual and want to inform us
of these, please contact our Customer Service department with the relevant details.

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2ROBO-503/ROBO-503N User’s Manual
2. Introduction
2.1 System Overview
The ROBO-503 is an ultra small 3.5” FDD-size Single Board Computer that equips with low-
power NS Geode GX1 processor, LCD interface, AC97 Audio and dual PCI-bus Ethernet
interfaces.
Targeting on the rapid growing networking and embedded system markets, the ROBO-503
is the first 3.5”SBC designed with dual high-end PCI-bus Intel 82559ER 10/100Base-Tx
Ethernet controllers. Making it the perfect solution for popular networking devices like
Gateway, Router, Thin Server, Firewall and E-Box.
Running on the NS Geode GX1 300MHz Low Power CPU and CS5530A multimedia
companion chipset, the ECM-3410 is also ideal for the demanding Internet Access Devices
or Mobile Applications that require a low-power and low-heat dissipation Single Board
Computer, such as WBT (Windows Based Terminal), Thin Client, STB (Set Top Box), Web
Phone, and other Information Appliances.
Other impressive features include a built-in 40-pin TFT LCD interface, the AC97 Audio, a
Compact Flash socket for type I/ II Compact Flash storage card, two serial ports, one
parallel port, and a 144-pin SODIMM socket allowing for up to 256MB of SDRAM to be
installed.

ROBO-503/ROBO-503N
ROBO-503/ROBO-503N User’s Manual 3
2.2 System Specifications
General Functions
•CPU: Onboard NS Geode GX1 300MHz (available in different speeds by special
order), BGA package
•BIOS: Award 256KB Flash BIOS
•Chipset: NS Geode CS5530A
•I/O Chipset: Winbond W83977F-A
•Memory: Onboard one 144-pin SODIMM socket supports up to 256Mbytes SDRAM
•Enhanced IDE: Supports two IDE devices. Supports Ultra DMA/33 mode with data
transfer rate up to 33MB/sec.
•FDD Interface: Supports up to two floppy disk drives, 5.25" (360KB and 1.2MB)
and /or 3.5" (720KB, 1.44MB, and 2.88MB)
•Parallel Port: Internal header for bi-directional parallel port x 1. Supports SPP, ECP,
and EPP modes
•Serial Port: One external DB-9 connector supports RS-232 x 1, one internal header
supports RS-232/422/485 x 1. Ports can be configured as COM1, COM2, COM3,
COM4, or disabled individually. (16C550 equivalent)
•IR Interface:Supports one IrDA Tx/Rx header
•KB/Mouse Connector: External mini-DIN PS2 Keyboard/Mouse connector x 1
•USB Connectors: One 5 x 2 header onboard supports dual USB ports
•Watchdog Timer: Can generate a system reset. Software selectable time-out
interval (16 sec. ~ 127min., 30 sec./step)
•DMA: 7 DMA channels (8237 equivalent)
•Interrupt: 15 interrupt levels (8259 equivalent)
•Power Management: I/O peripheral devices support power saving and
doze/standby/suspend modes. APM 1.2 compliant.

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4ROBO-503/ROBO-503N User’s Manual
Flat Panel/CRT Interface
•Chipset: NS Geode CS5530A
•Display Memory: Shared display memory up to 4MB
•Display Type: Supports non-interlaced CRT and up to 18-bit TFT LCD displays.
Can display both CRT and flat panel simultaneously
•Resolution: Up to 1280 x 1024 @ 8 bpp, and 1024 x 768 @ 16 bpp
Audio Interface
•Chipset: NS Geode CS5530A
•Audio Controller: AC97 ver. 2.0 compliant interface, Multi-stream Direct Sound and
Direct Sound 3D acceleration
•Audio Interface: Microphone in, Line in, CD audio in, Line out, Speaker out
Ethernet Interface
•Chipset: Dual Intel 82559ER PCI-bus Ethernet controllers onboard (ROBO-503 only)
•Ethernet Interface: PCI 100/10 Mbps, IEEE 802.3U compatible
•Remote Boot-ROM: Avaiable with For diskless system
SSD Interface
One CF socket supports Type I/II Compact Flash memory devices
Expansion Interface
One 16-bit 104-pin connector onboard
Connectors
•External Connectors: VGA (DB-15), COM 1 (DB-9), Ethernet (RJ-45) x 2,
KB/Mouse (Mini-DIN)
•Power Connectors: 4-pin HDD type

ROBO-503/ROBO-503N
ROBO-503/ROBO-503N User’s Manual 5
Mechanical and Environmental
•Power Supply Voltage: +5V (4.75V to 5.25V)
•Typical Power Requirement: 5V @ 2A w/ GX1 300MHz
•Operating Temperature: 32 to 140 °F (0 to 60 °C)
•Board Size: 146mm x 101mm (3.5" FDD-size)
•Weight: 0.4 Kg

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6ROBO-503/ROBO-503N User’s Manual
2.3 Architecture Overview
The following block diagram shows the architecture and main components of ROBO-503.
The two key components on board are the NS Geode GX1 CPU and the CS5530A
companion chip. These two devices provide the ISA and PCI bus to which all the major
components are attached.
The following sections provide detail information about the functions provided onboard.

ROBO-503/ROBO-503N
ROBO-503/ROBO-503N User’s Manual 7
2.3.1 CPU/GX1 and CS5530A
The NS Geode GX1 along with the CS5530A companion chip provide the basic functionality
and buses of the system:
nInterface to SDRAM, 64-bit data bus. PC100 compliant SDRAM must be used.
nPCI interface provided by GX1 CPU.
nPCI to ISA Bridge provided by CS5530A.
nVGA controller with video memory shared with system memory (UMA). The image
data is transferred to the companion chip by means of Pixel bus.
nCRT and TFT interface. Data provided by the Pixel and Video interface from the CPU.
The TFT interface and SA part of the ISA bus share pins as described later.
nVideo interface from GX1 to the CS5530A. This data-stream is buffered and
multiplexed with the Pixel bus for windowed video viewing. This interface may assist
the processor in connection motion picture decoding.
nUSB integrated in the CS5530A.
nIDE interface support Ultra DMA. Tow connectors are provided: A 44 pin pitch 2.0mm
standard IDE interface on the primary controller and a Compact Flash connector on the
secondary controller.
nDigital audio interface to an AC97 compliant audio codec.
2.3.2 XPRESS Graphics
The XPRESS Graphics is based on the GX1CPU and the CS5530A Companion chip and
this graphics controller is very cost efficient since almost no additional components are
required. This is achieved by using the SDRAM as frame-buffer and by integrating the
graphics engine and display interface in the GX1CPU and the CS5530Acompanion chip.
This controller provides a CRT as well as a TFT interface which support the modes listed
below:
The TFT panel interface is available as a parallel interface in the CN3 connector.
2.3.3 PCI Bus
The PCI-bus on the board is provided by the GX1CPU and will always run at 33MHz.
The GX1CPU provides support for up to three bus masters. These bus master signals are
used by the CS5530Aand dual Intel 82559ER Ethernet controllers.

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8ROBO-503/ROBO-503N User’s Manual
2.3.4 PC/104 Interface
The CS5530Acompanion chip provides a PCI-ISA Bridge that may operate in master or
slave mode. ECM-3410 only support ISA slave mode. ISA master mode allows anISA
board to grant the bus and thereby get the bus master status. The bus master has the
ability to generate bus cycles and thereby transfer data without involvement of the CPU or
DMA (Direct memory access). However, ISA add-on card which utilizesthe bus master
mode is very rare today. A 104-pin PC/104 connector is equipped onboard for future
expansion.
2.3.5 SDRAM Interface
This board uses SDRAM in the compact SODIMM-144 form factor. 3.3V PC 100 SDRAM
modules are recommended to be used.
2.3.6 TFT Panel Interface
An alternative display to the standard CRT monitor is a digital flat panel interface in which
the color of each pixel is digitally encoded. The panel data may be transferred in parallel
where the color of each pixel is transferred over a number of signal lines at rates up to
65MHz.
The parallel interface is only suitable for short distance (less than 50 cm) and is typically
implemented by using of ribbon cables. One should be careful in the EMC design of the box
and cabling when this interface is used.
It should also be noted that the signal level of this interface is 3.3V, but does comply with
the TTL signal levels. Some -most older displays require 5V signal level.
2.3.7 Audio
The CS5530Acompanion chip provides audio support through an AC97 codec interface.
The audio codec provides mixing of the analog signals as well as Digital/Analog conversion.
The following analog interfaces are provided.
nLine-in, stereo.
nCD-ROM input, stereo.
nMicrophone, single input with microphone bias circuit.
nLine-out, stereo.
nSpeaker out, stereo, 2 x0.5 Watt.
Access to the audio signals is provided by a 5 x 2 header (CN11) or by anoptional audio
bracket.

ROBO-503/ROBO-503N
ROBO-503/ROBO-503N User’s Manual 9
2.3.8 IDE Interface
A primary as well as a secondary IDE controller is provided by the CS5530Acompanion
chip which supports Ultra DMA mode and PCI bus mastering for the data transfer.
Access to these controllers is provided by a standard IDC 44-pin connector and a Compact
Flash type II connector on the solder side of this board.
2.3.9 USB
The USBinterface provides two USB channels that are controlled by the CS5530A.
The signals are provided by means of a 5 x 2 header or by an optional USB bracket
adapter.
2.3.10 Ethernet
The Ethernet interfacesare based on two Intel 82559ER Ethernet controllerswhich support
both 100Mbit as well as l0Mbit Base-T interface.
The Ethernet controllersare attached to the PCI bus and use PCI bus mastering for data
transfer. The CPU is thereby not loaded during the actual data transfer.
2.3.11 Winbond W83977F-A
The Winbond W83977F-A Super I/O chip provides most input / output interfaces of the
system as the following:
nCOM 1. Operates in RS-232 mode through a charge pump driver. Only 5V supply is
required
nCOM 2. A RS-232/RS-422/RS-485 driver is used whereby RS-232, RS-422 and RS-
485 are provided. Selection of the mode is made by hardware jumper. Driver uses
charge pumps whereby only +5V is required
nLPT. Support for SPP, EPP and ECP modes
nFloppy interface
nKeyboard interface
nPS/2 Mouse interface
nIrDA interface for infrared communication. This interface shares the controller of COM2
nProvision of buffered ISA data bus for BIOS (denoted XDBus)
nNVRAM with battery backup for BIOS configuration and real time clock
nWatchdog timer

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10 ROBO-503/ROBO-503N User’s Manual
2.3.12 Compact Flash Interface
ACompact Flash type II connector is connected to the secondary IDE controller. The
Compact Flash storage card is IDE compatible. It is an ideal replacement for standard IDE
hard drives. The solid-state design offers no seek errors even under extreme shock and
vibration conditions. The Compact Flash storage card is extremely small and highly suitable
for rugged environments, thus providing an excellent solution for mobile applications with
space limitations. It is fully compatible with all consumer applications designed for data
storage PC card, PDA, and Smart Cellular Phones, allowing simple use for the end user.
The Compact Flash storage card is O/S independent, thus offering an optimal solution for
embedded systems operating in non-standard computing environments. The Compact Flash
storage card is IDE compatible and offersvarious capacities.