Intel LXD970A Computer Accessories User Manual


 
Demo Board for 10/100 and 100BASE-FX Applications — LXD970A
Development Kit Manual 5
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 single chip 10/100Mbps, IEEE 802.3u compliant,
Fast Ethernet Transceiver unit (LXD970A). The 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).