Curtiss-Wright FibreXtreme SL240 Application guide


SL240
Hardware Reference
for Conduction Cooled PMC Cards
Document No. F-T-MR-S2PMCCC#-A-0-A4

FOREWORD
The information in this document has been carefully checked and is believed to be accurate; however, no
responsibility is assumed for inaccuracies. Curtiss-Wright Controls, Inc. reserves the right to make changes
without notice.
Curtiss-Wright Controls, Inc. makes no warranty of any kind with regard to this printed material,
including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.
©Copyright 2006 Curtiss-Wright Controls, Inc., All rights reserved.
SL240 Dual-Port Memory FIFO U.S. Patent #6,259,648.
®is a registered trademark of Curtiss-Wright Controls, Inc.
®
is a registered trademark of Curtiss-Wright Controls, Inc.
®is a registered trademark of Curtiss-Wright Controls, Inc.
Any reference made within this document to equipment from other vendors does not constitute an
endorsement of their product(s).
Published: February 28, 2006
Curtiss-Wright Controls, Inc. Embedded Computing
Data Communications
2600 Paramount Place Suite 200
Fairborn, OH 45324USA
[phone](U.S. only)
[phone]

FCC
This product is intended for use in industrial, laboratory, or military environments. This product uses and
emits electromagnetic radiation, which may interfere with other radio and communication devices. The
user may be in violation of FCC regulations if this device is used in other than the intended market
environments.
CE
As a component part of another system, this information technology product has no direct function and is
therefore not subject to applicable European Union directives for Information Technology equipment.

TABLE OF CONTENTS
1. INTRODUCTION...................................................................................................................................... 1-1
1.1 How to Use This Manual.......................................................................................................... 1-1
1.1.1 Purpose .................................................................................................................. 1-1
1.1.2 Scope .....................................................................................................................1-1
1.1.3 Style Conventions.................................................................................................. 1-1
1.2 Related Information.................................................................................................................. 1-2
1.3 Quality Assurance .................................................................................................................... 1-3
1.4 Technical Support..................................................................................................................... 1-4
1.5 Ordering Process ...................................................................................................................... 1-4
2. PRODUCT OVERVIEW........................................................................................................................... 2-2
2.1 Overview .................................................................................................................................. 2-2
2.2 SL240 Features......................................................................................................................... 2-3
2.2.1 SFF Media Options................................................................................................ 2-3
2.2.2 LED Descriptions .................................................................................................. 2-4
2.3 Accessories............................................................................................................................... 2-5
2.3.1 LinkXchange LX2500 Physical Layer Switch....................................................... 2-5
2.3.2 LinkXchange GLX4000 Physical Layer Switch.................................................... 2-5
2.4 Applications ............................................................................................................................. 2-6
2.4.1 Typical Digital Signal Processing (DSP) Imaging System .................................... 2-6
2.4.2 Extending FPDP .................................................................................................... 2-7
2.5 Topologies................................................................................................................................ 2-8
2.5.1 Typical Topologies ................................................................................................ 2-8
2.5.2 Point-to-point......................................................................................................... 2-8
2.5.3 Chained.................................................................................................................. 2-9
2.5.4 Single Master Ring .............................................................................................. 2-10
2.5.5 Multiple Master Ring........................................................................................... 2-11
3. INSTALLATION....................................................................................................................................... 3-1
3.1 Overview .................................................................................................................................. 3-1
3.2 Unpack the Cards ..................................................................................................................... 3-1
3.3 Inspect the Cards ...................................................................................................................... 3-1
3.3.1 SL240 CCPMC Card ............................................................................................. 3-1
3.4 Connect the Cables................................................................................................................... 3-2
3.4.1 Transmission Media............................................................................................... 3-2
3.4.2 Fiber-Optic Cables................................................................................................. 3-2
3.5 Troubleshooting........................................................................................................................ 3-3
4. OPERATION ............................................................................................................................................. 4-1
4.1 Overview .................................................................................................................................. 4-1
4.2 Theory of Operation ................................................................................................................. 4-2
4.2.1 Receive Operation ................................................................................................. 4-2
4.2.2 Transmit Operation................................................................................................ 4-2
4.2.3 Loop Operation...................................................................................................... 4-3
4.3 Data Synchronization ............................................................................................................... 4-4
4.4 Configuration Options .............................................................................................................. 4-4
4.4.1 Flow Control.......................................................................................................... 4-4
4.4.2 Loop Enable........................................................................................................... 4-4
4.4.3 Receiver/Transmitter Enable ................................................................................. 4-5
4.4.4 CRC Generation/Checking .................................................................................... 4-5
4.4.5 Stop on Link Error or /SYNC ................................................................................ 4-5
4.4.6 Receive FIFO Threshold Interrupt......................................................................... 4-5
Copyright 2006 i FibreXtreme Hardware Reference Manual

TABLE OF CONTENTS
APPENDICES
APPENDIX A – SPECIFICATIONS............................................................................................................ A-1
APPENDIX B – REGISTER SET ................................................................................................................ B-1
APPENDIX C – SL240 PROTOCOL ........................................................................................................... C-1
APPENDIX D – ORDERING INFORMATION .......................................................................................... D-1
GLOSSARY................................................................................................................................ GLOSSARY-1
INDEX .................................................................................................................................................INDEX-1
FIGURES
Figure 2-1 SL240 Conduction Cooled PMC Card ......................................................................................... 2-2
Figure 2-2 SL240 CCPMC LEDs LU, LS, R1, R0, T1, and T0 ..................................................................... 2-4
Figure 2-3 Typical Applications of FibreXtreme SL240 in Advanced DSP Systems .................................... 2-6
Figure 2-4 FibreXtreme SL240 Extending FPDP........................................................................................... 2-7
Figure 2-5 Point-to-Point Topology ............................................................................................................... 2-8
Figure 2-6 Chained Topology ........................................................................................................................ 2-9
Figure 2-7 Single Master Ring ..................................................................................................................... 2-10
Figure 2-8 Multiple Master Ring.................................................................................................................. 2-11
Figure 3-1 Fiber-optic Simplex LC Connector............................................................................................... 3-2
Figure 3-2 Fiber-optic Duplex LC Connector ................................................................................................ 3-2
Copyright 2006 ii FibreXtreme Hardware Reference Manual

1. INTRODUCTION
1.1 How to Use This Manual
1.1.1 Purpose
This manual introduces the FibreXtreme SL240 family of products, and provides guidance
through the process of unpacking, setting up, and programming the cards.
1.1.2 Scope
This manual contains the following information:
• An introduction to FibreXtreme SL240.
• Applications and topologies for SL240 boards.
• Instructions for installing and configuring the card.
• An operational overview of the product.
• General card specifications.
• Register set information.
• Programming information.
• Summary of the protocol used by the SL240 boards.
• Ordering information for all products mentioned in this manual.
• A brief introduction to the Front Panel Data Port (FPDP) interface.
• Definitions of words, phrases, and terms used in this manual.
• List of key words referenced in this manual.
The information in this manual is intended for information systems personnel, system
coordinators, or highly skilled network users with at least a systems-level understanding of
general computer processing, memory, and hardware operation.
1.1.3 Style Conventions
• Called functions are italicized. For example, OpenConnect().
• Data types are italicized. For example, int.
• Function parameters are bolded. For example, Action.
• Path names are italicized. For example, utility/sw/cfg.
• File names are bolded. For example, config.c.
• Path file names are italicized and bolded. For example, utility/sw/cfg/config.c.
• Hexadecimal values are written with a “0x” prefix. For example, 0x7e.
• For signals on hardware products, an ‘Active Low’ is represented by prefixing the
signal name with a slash (/). For example, /SYNC.
• Code and monitor screen displays of input and output are boxed and indented on a
separate line. Text that represents user input is bolded. Text that the computer
displays on the screen is not bolded. For example:
C:\>ls
file1 file2 file3
• Large samples of code are Courier font, at least one size less than context, and are
usually on a separate page or in an appendix.
Copyright 2006 1-1 FibreXtreme Hardware Reference Manual

INTRODUCTION
1.2 Related Information
• ANSI Z136.2-1988 American National Standard for the Safe Use of Optical Fiber
Communication Systems Using Laser Diode and LED Sources.
• Draft Standard for a Common Mezzanine Card Family: CMC; IEEE P1386, Draft 2.0,
April 4, 1995.
• Draft Standard Physical and Environmental Layers for PCI Mezzanine Cards: PMC,
IEEE P1386.1, Draft 2.0, April 4, 1995.
• Fibre Channel Association Product Information Bulletin Revision, December 9, 1994.
• Fibre Channel Physical and Signaling Interface (FC-PH), Revision 4.3, June 1, 1994;
Produced by the ANSI X3T9.3 standards group.
• Fibre Channel Physical and Signaling Interface-2 (FC-PH-2), Revision 7.3, January 5,
1996; Produced by the ANSI X3T11 standards group.
• Fibre Channel Physical and Signaling Interface-3 (FC-PH-3), Revision 8.6, April,
1996; Produced by the ANSI X3T11 standards group.
• Front Panel Data Port Specifications, ANSI/VITA 17-1998, Revision 1.0; February 11,
1999. Produced by the VITA Standards Organization.
• IEC 825-1984 Radiation Safety of Laser Products, Equipment Classification,
Requirements, and User’s Guide, 2 parts, 1993.
• LinkXchange LX2500 Physical Layer Switch Hardware Reference Manual
(Doc. No. F-T-MR-LX2500), Curtiss-Wright Controls, Inc.
• LinkXchange GLX4000 Physical Layer Switch User Reference Manual (Doc. No. F-T-
MR-L5XL144#-A-0-A2), Curtiss-Wright Controls, Inc.
• PCI Local Bus Specification, Revision 2.1, June 1, 1995; PCI Special Interest Group.
• Small Form-factor Pluggable (SFP) MultiSource Agreement (MSA), September 14,
2000, FO Transceiver Industry
• Curtiss-Wright Controls, Inc. – http://www.cwcembedded.com/.
• VITA – http://www.vita.com/.
Copyright 2006 1-2 FibreXtreme Hardware Reference Manual

INTRODUCTION
1.3 Quality Assurance
Curtiss-Wright Controls’ policy is to provide our customers with the highest quality products
and services. In addition to the physical product, the company provides documentation, sales
and marketing support, hardware and software technical support, and timely product delivery.
Our quality commitment begins with product concept, and continues after receipt of the
purchased product.
Curtiss-Wright Controls’ Quality System conforms to the ISO 9001 international standard for
quality systems. ISO 9001 is the model for quality assurance in design, development,
production, installation, and servicing. The ISO 9001 standard addresses all 20 clauses of the
ISO quality system, and is the most comprehensive of the conformance standards.
Our Quality System addresses the following basic objectives:
• Achieve, maintain, and continually improve the quality of our products through
established design, test, and production procedures.
• Improve the quality of our operations to meet the needs of our customers, suppliers,
and other stakeholders.
• Provide our employees with the tools and overall work environment to fulfill,
maintain, and improve product and service quality.
• Ensure our customer and other stakeholders that only the highest quality product or
service will be delivered.
The British Standards Institution (BSI), the world’s largest and most respected
standardization authority, assessed Curtiss-Wright Controls’ Quality System. BSI’s Quality
Assurance division certified we meet or exceed all applicable international standards, and
issued Certificate of Registration, number FM 31468, on May 16, 1995. The scope of Curtiss-
Wright Controls’ registration is: “Design, manufacture and service of high technology
hardware and software computer communications products.” The registration is maintained
under BSI QA’s bi-annual quality audit program.
Customer feedback is integral to our quality and reliability program. We encourage customers
to contact us with questions, suggestions, or comments regarding any of our products or
services. We guarantee professional and quick responses to your questions, comments, or
problems.
Copyright 2006 1-3 FibreXtreme Hardware Reference Manual

INTRODUCTION
1.4 Technical Support
Technical documentation is provided with all of our products. This documentation describes
the technology, its performance characteristics, and includes some typical applications. It also
includes comprehensive support information, designed to answer any technical questions that
might arise concerning the use of this product. We also publish and distribute technical briefs
and application notes that cover a wide assortment of topics. Although we try to tailor the
applications to real scenarios, not all possible circumstances are covered.
Although we have attempted to make this document comprehensive, you may have specific
problems or issues this document does not satisfactorily cover. Our goal is to offer a
combination of products and services that provide complete, easy-to-use solutions for your
application.
If you have any technical or non-technical questions or comments, contact us. Hours of
operation are from 8:00 a.m. to 5:00 p.m. Eastern Standard/Daylight Time.
• Phone: [phone] or [phone]
• E-mail: [email protected]
• Fax: [phone]
• World Wide Web address: www.cwcembedded.com
1.5 Ordering Process
To learn more about Curtiss-Wright Controls, Inc. products or to place an order, please use
the following contact information. Hours of operation are from 8:00 a.m. to 5:00 p.m. Eastern
Standard/Daylight Time.
• Phone: [phone] or [phone]
• E-mail: [email protected]
• World Wide Web address: www.cwcembedded.com
Copyright 2006 1-4 FibreXtreme Hardware Reference Manual

PRODUCT OVERVIEW
2. PRODUCT OVERVIEW
2.1 Overview
The FibreXtreme SL240 cards provide fast, low latency point-to-point or broadcast
connections between sensors and processing devices. Curtiss-Wright Controls’ SL240
family of products includes Conduction Cooled PCI Mezzanine (CCPMC), PMC, PCI,
CompactPCI (CPCI) and Front Panel Data Port (FPDP) solutions. The FPDP versions are
in two categories—a 6U VME- or PCI-based solution with standard FPDP connectors,
and a rehostable Common Mezzanine Card (CMC).
The CCPMC, PMC, PCI and CPCI versions provide a host link via the PCI bus. The PCI
bus is used in most standard PCs, and the PMC format is used in most popular single-
board computers. CompactPCI is a 3U or 6U Euro card format PCI card designed as a
more mechanically robust alternative to desktop PCI cards. The FPDP versions of the
card provide this interface through a simple unidirectional parallel port. This port can be
connected to existing FPDP equipment or can be integrated into new products (CMC).
All of these variations interoperate completely on the link interface, providing seamless
integration between diverse platforms. This manual will describe the SL240 Conduction
Cooled PMC (CCPMC) in detail.
Figure 2-1 SL240 Conduction Cooled PMC Card
Copyright 2006 2-2 FibreXtreme Hardware Reference Manual

PRODUCT OVERVIEW
2.2 SL240 Features
SL240 provides reliable point-to-point or broadcast interconnects between systems, with
minimal overhead and very low latency. The protocol involved for this transport is based
on Fibre Channel, though it is not Fibre Channel compliant. The major SL240 features
are listed below:
• Uses proven 8B/10B encoding for data transmission.
• End-to-end throughput of 247 MBps with or without frame checksums (SL240).
• Minimizes implementation cost and enhances throughput by using a simple
protocol.
• Provides built-in data synchronization with very little reduction in throughput.
• Integrated interrupt controller to report link failure, transaction completion, or
buffer space request.
• Status LED that reports link stability.
• Loop operation with out-of-band arbitration or point-to-point operation.
• Provides a register set designed for easy programming and status retrieval.
• 64-bit operation is backward compatible to 32-bit, 33 MHz.
• SL240 66 MHz PCI support (3.3 V signaling only) in PMC form factor.
• 128 MB Receive FIFO.
• 1 KB Transmit FIFO.
• Meets rugged level 2 specifications.
2.2.1 SFF Media Options
There is one SFF media option, short wavelength laser (850nm). The short wavelength
version is useful for intrasystem connections, such as connecting between cards on the
same backplane. It is also suited for short reach intersystem connections (< = 150 m).
All cards use a Duplex LC style connector available from most major cable
manufacturers. For details concerning these connectors, contact Curtiss-Wright Controls,
Inc. Technical Support.
Copyright 2006 2-3 FibreXtreme Hardware Reference Manual

PRODUCT OVERVIEW
2.2.2 LED Descriptions
Three sets of status LEDs are visible on the SL240 board. The position of the LEDs is
shown in Figure 2-2 for the CCPMC SL240.
Link Select (LS)
The Link Select LED indicates which channel of the SL240 board is selected. By default
channel 1 is selected. Channel 0 is not used.
Link Up (LU)
The Link Up LED turns on when the SL240 is receiving a valid signal.
Signal Detect (R0, R1)
The Signal Detect LED (R1) indicates a signal is being received by channel 1 of the
transceiver. LED R0 is not used.
Laser Enable (T0, T1)
The Laser Enable LED (T1) indicates the channel 1 transceiver is turned on. LED T0 is
not used.
Figure 2-2 SL240 CCPMC LEDs LU, LS, R1, R0, T1, and T0
Copyright 2006 2-4 FibreXtreme Hardware Reference Manual

PRODUCT OVERVIEW
2.3 Accessories
2.3.1 LinkXchange LX2500 Physical Layer Switch
Curtiss-Wright Controls’ LX2500 Physical Layer Switch provides the following features:
• Up to 32 non-blocking media-specific I/O ports.
• Up to 2.5 Gbps/port baud rate (port-card dependent).
• Support for multiple point-to-point, loop, and broadcast communication links
simultaneously.
• Automatic I/O Port fault isolation.
• Multiple media options.
• Out-of-band control through an RS-232 port.
• Can be connected to a modem and controlled from a remote location.
For more detailed information regarding LX2500 features and operation, contact
Curtiss-Wright Controls, Inc. and request a copy of the LinkXchange LX2500 Physical
Layer Switch Hardware Reference Manual or visit our web site.
2.3.2 LinkXchange GLX4000 Physical Layer Switch
The GLX4000 Crossbar Switch has the following features:
• Up to 144 non-blocking I/O ports.
• Up to 4.25 Gbps/port data rate.
• 48 Small Form Factor, Pluggable (SFP) transceiver modules per SFP port card.
• 48 IEEE 1394b "Firewire" copper media ports per IEEE 1394b port card.
• Port cards and pluggable transceivers may be mixed in one system.
• Supports Loop, Point-to-Point, One-to-Many communication links.
• Supports multiple physical media options including short wavelength (850 nm), long
wavelength (1300 nm), and HSSDC2.
• Automatic port fault isolation.
• Front panel indicators:
• Signal Detect indicator.
• Transmitter ON indicator.
• Heartbeat indicator.
• Flash Write indicator.
• Fan/Temperature Alarm.
• Watchdog indicator.
• Out-of-band control through an Ethernet port.
• Can be controlled from a remote location.
• Dual-redundant hot-swappable power supplies.
• Hot-swappable fans.
• Hot-pluggable Small Form-factor transceiver modules.
• Hot-pluggable port cards.
• Multiple temperature monitoring points within enclosure.
• Configuration data stored on a removable CompactFlash card.
• Automatic fan speed control based on enclosure temperature.
• Fan tachometer monitor.
For more detailed information regarding GLX4000 features and operation, contact
Curtiss-Wright Controls, Inc. and request a copy of the GLX4000 Crossbar Switch
Hardware Reference Manual or visit our web site.
Copyright 2006 2-5 FibreXtreme Hardware Reference Manual

PRODUCT OVERVIEW
2.4 Applications
SL240 cards are used in a variety of topologies for a variety of applications. The
following sections detail typical topologies used and some applications. Many other
applications are possible in these configurations.
2.4.1 Typical Digital Signal Processing (DSP) Imaging System
With the support for 1.0625 Gbps or 2.5 Gbps link transmission rates between
interconnected subsystems, SL240 is ideal for use in many of today’s high-throughput
data transfer applications. Figure 2-3 shows one example. This figure shows the SL240’s
usable data throughput rate (247 MBps ).
PMC
PMC
247 MBps
Sensors
(Scan the Image)
DSP Systems
(Develop the Image)
High Performance
General Purpose Computers
(Analyze the Image)
High Speed Storage
Radar
IR
Sonar
A
coustic
Photon
Video
Etc.
247 MBps
247 MBps
247 MBps
247 MBps
SL240
Fibre Channel
FULL FC-4 FIBRE CHANNEL IS GOOD FOR STORAGE & WORKSTATION CONNECTIONS
BUT, TOO MUCH OVERHEAD & LATENCY FOR MOST SENSOR CONNECTIONS !
247 MBps
247 MBps
247 MBps
Figure 2-3 Typical Applications of FibreXtreme SL240 in Advanced DSP Systems
Copyright 2006 2-6 FibreXtreme Hardware Reference Manual

PRODUCT OVERVIEW
2.4.2 Extending FPDP
The maximum allowable length for FPDP cables ranges from 1 m to 5 m depending upon
its configuration. The FibreXtreme SL240 system provides a communication link that
extends the reach of FPDP while retaining simplicity, high bandwidth, and reliability.
This concept is shown in Figure 2-4. The type of transceiver used determines the distance
the FPDP cards can be separated. See section 2.2.1, Media Options, for details on
transceivers. Using fiber optics provides electrical isolation.
ADC
DSP
SL240
FPDP
FPDP
SL240
SL240
150 m maximum (SL240)
Figure 2-4 FibreXtreme SL240 Extending FPDP
Copyright 2006 2-7 FibreXtreme Hardware Reference Manual

PRODUCT OVERVIEW
2.5 Topologies
2.5.1 Typical Topologies
There are four typical topologies for the SL240 card. These topologies should cover most
customer applications, though if another topology is desired contact Curtiss-Wright
Controls, Inc. Technical Support to see if it is possible. The topologies are:
• Point-to-point
• Chained
• Single Master Loop
• Multiple Master Loop
2.5.2 Point-to-point
The point-to-point topology is the native mode for the SL240 card. One user option
available in this mode is whether flow control is used or not. If flow control is used, the
transmitter on each end will not transmit when the remote receiver is telling it to back off
or the receive fiber is missing. In this mode, the maximum amount of data that can be
transferred is 247 MBps per direction (in this case, both cards are receiving and
transmitting 247 MBps at the same time). The maximum distance between the nodes is
26 km.
There are many applications for the point-to-point topology—as long as it involves only
two nodes, this topology covers it. One advantage that point-to-point has over the other
topologies is the ability to do simultaneous bi-directional traffic.
RX
TX
TX
RX
SL240
Card
SL24
0
Card
Figure 2-5 Point-to-Point Topology
Copyright 2006 2-8 FibreXtreme Hardware Reference Manual

PRODUCT OVERVIEW
2.5.3 Chained
This topology is a single transmitter on the end of a long string of receivers. No flow
control is available in this topology, and the distance between the nodes is limited only by
the transceivers used (150 m maximum).
This topology is good for broadcasting data to multiple destinations where late data is of
no use, such as video transmission applications.
RX TX RX TX RX TX RX TX
SL240 Card SL240 Card SL240 Card SL240 Card
Figure 2-6 Chained Topology
Copyright 2006 2-9 FibreXtreme Hardware Reference Manual

PRODUCT OVERVIEW
2.5.4 Single Master Ring
This is one of the most useful topologies for the SL240 card. This topology allows a
single transmitter to send data to a group of destinations with flow control from all of the
destinations. This flow control is a single flag to the master—it can send or it cannot send
data. This means that if one destination has a failure and stops removing data from its
receive FIFO, it should be switched out to avoid bringing down the loop. Switches
suitable for this purpose are the LinkXchange LX2500 or GLX4000 Physical Layer
Switch, available from Curtiss-Wright Controls, Inc. Software controls mastership
switching of the ring. There are rules associated with master switching listed in the
“Programming Interface” section. The flow control used in this case is similar to a multi-
drop FPDP bus, where any receiver can back the transmitter off.
This is the typical configuration for record-playback systems, where you have multiple
signal processors and data storage elements present on the network and there is only one
node (the data source or the recorder playing the data back) transmitting at a time.
RX TX
RXTX
RX
TX RX
TX
SL240 Card
(Destination) SL240 Card
(Destination)
SL240 Card
(Destination)
SL240 Card
(Master)
Figure 2-7 Single Master Ring
Copyright 2006 2-10 FibreXtreme Hardware Reference Manual

PRODUCT OVERVIEW
2.5.5 Multiple Master Ring
This is another form of ring topology, where there are multiple masters on the ring, and
these masters have to receive data as well as transmit data to the next master. In the most
complex case, each node is a master, which means that it receives data from the previous
master and sends data to the next master. Flow control is not allowed in this topology for
rings above two nodes, and the data cannot be passed through masters unless control
guarantees that there is at least one source-only node on the ring and that no two masters
will transmit at the same time. Single master rings should temporarily become multiple
master rings when switching loop masters.
RX TX
RXTX
RX
TX RX
TX
SL240 Card
(Master A)
SL240 Card
(Destination B) SL240 Card
(Destination A)
SL240 Card
(Master B)
Figure 2-8 Multiple Master Ring
Copyright 2006 2-11 FibreXtreme Hardware Reference Manual