Conexant Bt8960 Installation manual

Bt8960
Hardware User’s Guide
100188B
November 2000

100188B Conexant
Preliminary Information/Conexant Proprietary and Confidential
© 2000, Conexant Systems, Inc.
All Rights Reserved.
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100188B Conexant iii
Conexant Proprietary and Confidential
Table of Contents
Table of Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Bt8960EVM Hardware User’s Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Important Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Bt8960EVM Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
User Interface Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Data Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Setup Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
UIP Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Recommended Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Line Simulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Communications Analyzer Bit Error Rate Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Personal Computer (optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Interface Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Line Interface (J1, J2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Prototyping Provisions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Power Supply/Line Card Configuration Interface (J3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Remote/Local Unit Configuration (pin 3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
RS-232 Interface (J4). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Digital Data Interface (J5, J6, J7, J8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Test Points 8
80C32 Processor Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table of Contents Bt8960
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Status LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Line Card ID 10
Layout Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Appendix A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Schematics, Layout Drawings and BOMs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Sales Offices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Bt8960 List of Figures
Bt8960EVM Hardware User’s Guide
100188B Conexant v
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List of Figures
Figure 1 Loop Performance Test Remote Unit Setup (C to R). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 2. Detail “A” for Page 1 of the Bt8960 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

List of Figures Bt8960
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Bt8960 List of Tables
Bt8960EVM Hardware User’s Guide
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List of Tables
Table 1 Line Card ID Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Table 2 8960 Line Card Test Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 3 Memory Mapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

List of Tables Bt8960
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100188B Conexant 1
Conexant Proprietary and Confidential
Bt8960EVM Hardware User’s Guide
Introduction
Welcome to the Bt8960 Evaluation System from Brooktree Corporation. You can
use the Bt8960 Evaluation System to evaluate the performance of the Bt8960
device, to develop software for your Digital Subscriber Line (DSL) system, and
for many other applications. Brooktree has created this development platform to
help its customers get their communication system products to market as quickly
as possible.
Important Information
Bt8960EVM Contents
The Bt8960 Evaluation System Hardware User’s Guide is one part of the
Bt8960EVM package. If you have ordered the Bt8960EVM, please review the
Bt8960EVM Contents List to ensure that you have received all of the items on the
list.
Software
This user’s guide covers the operation and design of the Bt8960EVM. It does not
describe the software contained in the PROMs that are shipped with this system.
For a description of this software, please sign and return the Software License
agreement shipped as part of the Bt8960EVM package. In return, Brooktree will
send the source code (in C) of the software that resides in the PROM.

Bt8960EVM Hardware User’s Guide Bt8960
Important Information Bt8960EVM Hardware User’s Guide
2Conexant 100188B
Conexant Proprietary and Confidential
User Interface Program
A user interface program (UIP) is also provided by Brooktree to perform for more
advanced monitoring and testing of the Bt8960EVM. This program runs on a
standard IBM compatible personal computer (PC) and interfaces from the PC to
the Bt8960EVM through two RS-232 serial communication ports. Please see the
User Interface Program (UIP) User’s Guide (UGHDSL_1A) for additional
information.
Data Rate
The Bt8960EVM has been designed to operate at a data rate of 288 Kbits per
second. It can be modified to run at other data rates supported by the Bt8960
device. Please see the Bt8960 datasheet or the Interconnection Information
application note for more information on how to modify the line card for different
data rates. Each line card in the system also contains a line card ID which is set by
five 0 ohm resistors, R39 to R43 (see the 8960EVM line card schematic in
appendix A). These resistors may need to be modified so the EVM software is
configured for the correct data rate. The line card ID is defined according to
Table 1.
Ordering Information
Table 1 Line Card ID Definition
R39 to R43 (binary) Data Rate (kbps)
Center Range of Operation
00000 (default) 288 220 to 352
00001 416 352 and up
00010 160 Up to 220
All Others Reserved Reserved
Order Code Bt8960EVM
Description The Bt8960 evaluation system can be ordered using the order code listed
above. This order includes both the local (HTU-C/LTU) and remote
(HTU-R/NTU) units needed to perform full-duplex data transmission over a
twisted pair of wire. A power supply is also included for your convenience.
For a full list of the items shipped with the Bt8960EVM order, please see the
Bt8960EVM Contents List.