PRELIMINARY
NetPHY-1LP-KT/M
Am79C874 Evaluation Kit using MII
DISTINCTIVE CHARACTERISTICS
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Based on the NetPHY鈩?1LP single port, low
power, 10/100 Mbps Ethernet PHY
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Provides complete MII connector to RJ-45
connector functionality
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Provides jumpers to control test modes, PHY
address, MII or 7-wire (GPSI) mode
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Board connects directly into MII test equipment
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LED indicates the following:
鈥?Link, RX Activity (in the RJ-45 connector)
鈥?Duplex, Speed/TX Activity (on the board)
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Single 1:1 ratio magnetics module
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Power supplied via MII connector
GENERAL DESCRIPTION
The NetPHY-1LP-KT/M evaluation kit has been devel-
oped as a tool for evaluating the performance of the
NetPHY-1LP device. The kit also serves as a design
reference tool. The evaluation board has followed de-
sign layout practices for optimum EMI performance.
The kit schematics and layout information provide ex-
cellent guidance for integration of the NetPHY-1LP de-
vice into individual designs.
The evaluation board is con鏗乬ured for MII to RJ-45
10BASE-T/100BASE-TX twisted pair cable operation.
It does not support 鏗乥er optic operation. A jumper al-
lows use of the 7-wire General Purpose Serial Interface
(GPSI) via the MII connector for 10BASE-T operation.
The evaluation board obtains 5-V power from the MII
connector. The 5-V power is converted to 3.3-V by an
on-board voltage regulator. The regulator can be by-
passed to allow external 3.3-V voltage tolerance test-
ing. Five jumpers allow selection of one of 32 different
PHY addresses. The reset button is included as a
convenient method of providing the hardware reset
function.
The NetPHY-1LP device provides excellent LED 鏗俥xi-
bility. The evaluation board has been designed to dem-
onstrate one set of capabilities. The two LEDs on the
RJ-45 connector can provide steady or blinking feed-
back to the user. The two LEDs directly on the evalua-
tion board can provide steady, blinking, or bi-color
feedback to the user. This 鏗俥xibility gives the designer
multiple options for custom LED 鈥渓ook and feel鈥?front
panels.
EVALUATION KIT CONTENTS
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One 7 cm x 11 cm (2.5 in. x 4 in.) NetPHY-1LP eval-
uation board
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NetPHY-1LP preliminary data sheet (PID #22235B)
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Evaluation board user instructions
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Board schematics, Gerber, BOM in hard copy
The contents of this document are provided in connection with Advanced Micro Devices, Inc. ("AMD") products. AMD makes no representations
or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to speci-
tellectual property rights is granted by this publication. Except as set forth in AMD's Standard Terms and Conditions of Sale, AMD assumes no
liability whatsoever, and disclaims any express or implied warranty, relating to its products including, but not limited to, the implied warranty of
merchantability, 鏗乼ness for a particular purpose, or infringement of any intellectual property right.
AMD's products are not designed, intended, authorized or warranted for use as components in systems intended for surgical implant into the
body, or in other applications intended to support or sustain life, or in any other application in which the failure of AMD's product could create a
situation where personal injury, death, or severe property or environmental damage may occur. AMD reserves the right to discontinue or make
changes to its products at any time without notice.
Trademarks
Copyright 漏 1999 Advanced Micro Devices, Inc. All rights reserved.
AMD, the AMD logo, and combinations thereof are trademarks of Advanced Micro Devices, Inc.
NetPHY is a trademark of Advanced Micro Devices, Inc.
Product names used in this publication are for identi鏗乧ation purposes only and may be trademarks of their respective companies.
Publication #
22355
Rev:
A
Amendment/0
Issue Date:
April 1999
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