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82551QM/82540EM Interchangeable LOM Design Guide Application Note (AP-432)

December 2003 Revision 1.0 82551QM/82540EM Interchangeable LOM Design 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 saving, or life sustaining applications. Intel may make changes to specifications and product descriptions at any time, without notice. The NAME OF PRODUCT 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. This document and the software described in it are furnished under license and may only be used or copied in accordance with the terms of the license. The information in this document is furnished for informational use only, is subject to change without notice, and should not be construed as a commitment by Intel Corporation. Intel Corporation assumes no responsibility or liability for any errors or inaccuracies that may appear in this document or any software that may be provided in association with this document. Except as permitted by such license, no part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means without the express written consent of Intel Corporation. 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 © 2003, Intel Corporation. * Third party Other names and brands may be claimed as the property of others. ii Application Note (AP-432) Revision History Date Dec 2003 82551QM/82540EM Interchangeable LOM Design Guide Revision 1.0 Description Initial public release. (Confidential status was removed.) Application Note (AP-432) iii 82551QM/82540EM Interchangeable LOM Design Guide iv Application Note 82551QM/82540EM Interchangeable LOM Design Guide Contents 1.0 2.0 3.0 4.0 Introduction....................................................................................................................................1 1.1 Document Scope ..................................................................................................................1 1.2 Reference Documents ..........................................................................................................1 1.3 Product Code........................................................................................................................2 Pin Number to Signal Mapping ....................................................................................................2 Gigabit Ethernet Design................................................................................................................9 Reference Schematic ....................................................................................................................9 Application Note (AP-432) v 82551QM/82540EM Interchangeable LOM Design Guide vi Application Note 82551QM/82540EM Interchangeable LOM Design Guide 1.0 Introduction ® ® The Intel 82540EM Gigabit Ethernet Controller and the Intel 82551QM Fast Ethernet Controller are both manufactured in a footprint compatible 15 mm x 15 mm, 196-Ball Grid Array (BGA) package. Many of the critical signal pin locations on the 82540EM are identical to signals on the 82551QM, allowing designers to create a single design that accommodates both parts. However, the usage of some signals and pins Read the full 82551QM/82540EM Interchangeable LOM Design Guide Application Note (AP-432).

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