Intel LXD386 User Manual
LXD386 — Evaluation Board for
Quad T1/E1 Applications
Developer Manual
January 2001
As of January 15, 2001, this document replaces the Level One document Order Number: 249215-001
LXD386 — Evaluation Board for Quad T1/E1 Applications User Guide.
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 LXD386 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
1-800-548-4725 or by visiting Intel's website at http://www.intel.com.
Copyright © Intel Corporation, 2001
*Third-party brands and names are the property of their respective owners.
LXD386 — Evaluation Board for Quad T1/E1 Applications Developer Ma nual
Contents
1.0 General Description..................................................................................................5
1.1 Features................................................................................................................5
2.0 Overview........................................................................................................................7
2.1 LXD386 Packing List.............................................................................................7
2.2 Equipment Requirements......................................................................................7
2.3 Control Modes.......................................................................................................7
2.4 Factory Settings ....................................................................................................8
3.0 Hardware Mode Set-Up and Operation..............................................................9
3.1 Power Connections ...............................................................................................9
3.2 Hardware Mode Selection.....................................................................................9
3.3 Loopback Mode Selection.....................................................................................9
3.4 Clock Edge Selection ......................................... ...... ....... ...... ................................9
3.5 Output Enable Selection......................................................................................10
3.6 Code Selection....................................................................................................10
3.7 Monitoring Address Selection..............................................................................10
3.8 Jitter Attenuator Selection...................................................................................10
3.9 Line Buildout Selection........................................................................................11
3.10 Master Clock Setup.............................................................................................11
3.11 JTAG Boundary Scan Port..................................................................................12
3.12 Framer/ASIC Connection ....................................................................................12
3.13 LED Indicators.....................................................................................................13
3.14 Line Interface.......................................................................................................13
3.15 Board Protection.... ...... ....... ...... ....... ...... ...... ....... ...... ....................................... ....13
4.0 Software Mode Set-Up and Operation.............................................................14
4.1 i8051 Microcontroller Board ................................................................................14
4.2 Evaluation Board Set-up .....................................................................................14
4.3 Test Equipment Connections..............................................................................14
4.4 Power Connections .............................................................................................14
4.5 Evaluation Board Software..................................................................................15
4.6 Software Installation and Start-Up.......................................................................15
4.7 Hardware Set-up Screen.....................................................................................15
4.8 Quitting the Program ...........................................................................................15
4.9 Configuration Screen ... ....... ...... ....... ...... ...... ....... ....................................... ...... ....16
4.9.1 Communications Modes.....................................................................16
4.9.2 Registers ............................................................................................16
4.9.3 Setting Individual Transceiver Operating Modes................................16
4.9.4 Apply to all Channels..........................................................................17
4.9.5 Exit .....................................................................................................17
4.10 Registers Screen.................................................................................................18
4.10.1 Setting Registers................................................................................18
4.10.2 Status Indicators.................................................................................18
4.10.3 Control Buttons...................................................................................18
4.10.4 Interrupts ............................................................................................18
4.10.5 Reset..................................................................................................18
LXD386 — Evaluation Board for Quad T1/E1 Applications Developer Manual iii
5.0 Evaluation Board Schematics.............................................................................20
Figures
1 LXD386 Evaluation Board..................................... ...... ....... ...... .............................6
2 Default Switch Settings ........................... ...... ....... ...... ....... ...... ....... ...... ....... ...... .11
3 Jumper Block JP5 ...............................................................................................12
4 Jumper Block JP2 ...............................................................................................12
5 Jumper Block JP 31 ............................................................................................13
6 Hardware Set-up Screen................................ ....... ...... ....... ...... ....... ....................16
7 Configuration Screen ..........................................................................................17
8 Registers Screen.................................................................................................19
9 Evaluation Board Sche mat ic — Data/Control .....................................................20
10 Evaluation Board Schematic — Line Interface Unit............................................21
11 Evaluation Board Schematic — Monitoring.........................................................22
12 Evaluation Board Schematic — LOS Detector....................................................23
13 Evaluation Board Schematic — Analog..............................................................24
14 Evaluation Board Schematic — Digital I/O..........................................................25
Tables
1 LOOP/DLOOP Switch Settings.............................................................................9
2 JP5 Jumper Settings...........................................................................................11
iv LXD386 — Evaluat ion Board for Quad T1/E1 Applications Developer Ma nual
Evaluation Board for Quad T1/E1 Applications — LXD386
1.0 General Description
The LXD386 evaluation board is a versatile tool for engineers designing T1/E1 short haul
applications using the LXT386.
The evaluation board operates in one of two modes: Software (Host) mode or Hardware mode. In
Software mode, the device is controlled with the PC based configuration and monitoring software
through an i8051 microcontroller in terface. In Har dware mode, the device and ch annel contro ls are
set using shorting blocks and DIP switches located on the LXD3 86 evalua tion board.
The evaluation board provides banana jacks for each channel’s line interface to allow conn ection of
a T1/E1 pattern generator/analyzer. A connector is also provided for each channel’s framer or backend ASIC interface.
1.1 Features
• Software and Hardware controllable
• ZIF LQFP socket for easy swapping of LXT386
• Banana jacks for power and line interfaces
• 10-pin connectors for framer/ASIC interface
• 8-pin connector for IEEE 1149.1 compliant JTAG boundary scan port
• LED indicators for LOS alarm
• On-board 2.048/1.544 MHz reference clock oscillator
• Switches and shorting blocks for Hardware mode operation
• Compatible with Intel external i8051 microcontroller board
• PC-based software for ease of use
• Socketed transformer and termination components for easy experimentation
• Built-in overvoltage protection for line interface and power supply
Developer Manual 5
LXD386 — Evaluation Board for Quad T1/E1 Applications
Figure 1. LXD386 Evaluation Board
6 Developer Manual
Evaluation Board for Quad T1/E1 Applications — LXD386
2.0 Overview
Caution: CMOS devices are static (ESD) sensitive. Take all industry standard precautions when handling the
evaluation board, LXT386 chip, and other sensitive electronic components.
Before proceeding with any evaluation board operations, review the specifications for the LXT3 86
transceiver.
2.1 LXD386 Packing List
The evaluation board kit contains the following components:
• LXD386 evaluation board with the LXT386 installed.
• 2.048 MHz oscillator installed, additional 1.544 MHz oscillator supplied.
• i8051 microcontroller interface board and PC serial port cable.
• PC compatible diskettes containing software for using the evaluation board in Software mode.
• Shorting block kit for selecting Hardware mode.
• LXD386 user guide.
• LXT386 data sheet.
2.2 Equipment Requirements
The evaluation board kit includes all the circuit components needed for a successful evaluation.
However, the following lab equipment is required:
• Power Supply +3.3V DC (+5VDC for TVCC optional)
• Telecom cable or cable simulator (optional).
• T1/E1 pattern generator/analyzer.
• 1.544/2.048 MHz clock source (optional).
• For Software mode: an IBM compatible PC with minimum 386 40 MHz processor, available
serial po rt, mouse, VGA monitor, DOS 5.0+, and Microsoft Windows
Windows 9x is recommended.
2.3 Control Modes
The LXT386 has two basic operating m odes: Hardware mode or Software (Host ) mode. In
Hardware mode, operation of the LXT386 is established by hard-wiring the pins. In Software
mode, operation of the LXT386 is controlled by an external microprocessor that communicates
with the LXT386’s internal registers via either a serial or parallel interface.
3.1 or later version,
The LXD386 evaluation board supports both hardware and software modes.
Developer Manual 7
LXD386 — Evaluation Board for Quad T1/E1 Applications
2.4 Factory Settings
When shipped from the factory, the LXD386 evaluation board’s switches and jumpers are set for
software mode and parallel microprocessor interface.
8 Developer Manual
Loading...