Intel LXD970A User Manual

LXD970A Demo Board for 10/100 and 100BASE-FX Applications

Development Kit Manual

January 2001

As of January 15, 2001, this document replaces the Level One document Order Number: 249103-001 LXD970A Demo Board for 10/100 and 100BASE-FX Applications.

Information in this document is provided in connection with Intel® products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel’s Terms and Conditions of Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied warranty, relating to sale and/or use of Intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Intel products are not intended for use in medical, life sav ing, or life sustaining applications.

Intel may make changes to specifications and product descriptions at any time, without notice.

Designers must not rely on the absence or characteristics of any features or instructions marked “reserved” or “undefined.” Intel reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them.

The LXD970A may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request.

Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order. Copies of documents which have an ordering number and are referenced in this document, or other Intel literature may be obtained by calling

LXD970A Demo Board for 10/100 and 100B ASE-FX Applications Development Kit Manual

Contents

1.0 General Description..................................................................................................5

1.1 Features................................................................................................................5

2.0 Equipment and Setup...............................................................................................7

2.1 Test Setup.............................................................................................................7

2.2 Loading Test File...................... ....... ...... ...... ....... ...... ....... ...... ....... ...... ....... ............7

2.3 Power Supply Option.............................................................................................8

2.3.1 External +5V Supply for Analog Circuitry (VCCA, VCCT and VCCR)..9

2.4 Test Points ............................................................................................................9

3.0 Jumpers.......................................................................................................................10

4.0 Hardware Control Interface..................................................................................11

4.1 Multi-Function Pins..............................................................................................11

4.1.1 Function/Address Settings .................................................................11

4.1.2 Additional Jumper Functions..............................................................12

4.2 LED Indicators.....................................................................................................13

Figures

Tables

1 LXD970A Demo Board..........................................................................................6

2 Basic Test Setup ...................................................................................................7

3 Optional Test Setup..............................................................................................8

4 Hardware Control Interface Jumper Placement .................................................11

5 LXD970A Schematic ...........................................................................................14

1 Test Point Descriptions .........................................................................................9

2 Jumper Descriptions............................................................................................10

3 MF Pins Input Voltage Levels..............................................................................11

4 Hardware Control Interface (JP1) Functions.......................................................12

5 Operating Speed Advertisement Settings ...........................................................12

6 Additional JP1 Jumper Functions........................................................................13

7 LED Descriptions.................................................................................................13

LXD970A Demo Board for 10/100 and 100BASE-FX Applications Development Kit Manual iii

Demo Board for 10/100 and 100BASE-FX Applications — LXD970A

1.0 General Description

The LXD970A Demo Board is a versatile 10/100Mbps Ethernet media access unit (MAU) that demonstrates all of the integral features of the LXT970A Fast Ethernet Transceiver.

The LXD970A provides a working platform for evaluation of the LXT970A Fast Ethernet Transceiver in 10BASE-T and/or 100BASE-TX/FX applications.

The LXD970A Demo Board is configured with a sin gle chip 10/100Mbps , IEEE 802.3u comp liant, Fast Ethernet Transceiver unit (LXD970 A). Th e demo board is designed to plug into a transceiver test box via a standard 40-pin MII connector. This allows system designers to test 10Mbps and 100Mbps link performance, auto-negotiation and register functionality prior to board prototyping.

The LXT970A also provides an ECL-type interface for 100BASE-FX link testing. This document describes typical Demo Board setup procedures for a 100BASE-TX environment. Before using the Demo Board, review the LXT970A Fast Ethernet Transceiver data sheet for

device functionality and specifications.

1.1 Features

• IEEE 802.3-compliant 10BASE-T and 100BASE-TX using a single RJ45 connection.

• Quick setup, ease of use, and clear visibility of application settings for:

— Complete system demonstration — Individual circuit isolation

• LED indicators for major functions.

• IEEE 802.3u MII interface with extended register capability.

• Configured for single 5V supply operation.

• Standard half duplex or full duplex operation at 10 or 100 Mbps.

• 100BASE-FX fiber optic capability (unstuffed optional circuitry).

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