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Designing SERDES-SERDES Interfaces with the 82546GB Ethernet Controller Application Note (AP-466)

Revision 1.3 April 2005 ® 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. 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 82546GB Gigabit Ethernet Controller 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 Web site at http://www.intel.com. Copyright © 2005 Intel Corporation. All rights reserved. * Other product and corporate names may be trademarks of other companies and are used only for explanation and to the owners’ benefit, without intent to infringe. ii Application Note (AP-466) Designing SERDES-SERDES Interfaces with the 82546GB Ethernet Controller Revision History Revision 1.3 1.2 1.1 1.0 0.9 0.75 0.5 0.2 0.1 Revision Date April 2005 Feb 2005 Oct 2004 April 2004 April 2004 Mar 2004 Feb 2004 Feb 2004 Jan 2003 Description Added link status information to Section 2.1.4.2 Signal Detect. • Revised reference schematics in Section 7.0. • Added Section 2.1.2 “Board Layout Recommendations for Software Com- patibility”. • Revised reference schematics in Section 7.0. • Added Section 3.2 for Device Identification sections. • Added reference documents to Section 6.0. • Added reference schematics (Section 7.0). • Reworded some sentences for better clarity. • Replaced generic receive and transmit eye diagrams with actual analyzer screen captures. • Reworded some sentences for better clarity. Updated all sections after first review. Updated all sections. New outline. Initial release. Application Note (AP-466) iii Designing SERDES-SERDES Interfaces with the 82546GB Ethernet Controller Note: This page intentionally left blank. iv Application Note (AP-466) Designing SERDES-SERDES Interfaces with the 82546GB Ethernet Controller Contents 1.0 Introduction .............................................................................................. 1 2.0 1.1 Scope .......................................................................................................................1 Basic Circuit Design ................................................................................ 3 3.0 2.1 Design and Layout Considerations ..........................................................................5 2.1.1 Board Layout Recommendations..................................................................5 2.1.2 Board Layout Recommendations for Software Compatibility ........................5 2.1.3 Impedance Matching .....................................................................................6 2.1.4 82545GM/82546GB Gigabit Ethernet Controller Dependencies...................6 82545GM/82546GB SERDES Specifications.......................................... 9 3.1 Transmit and Receive Specifications .......................................................................9 Read the full Designing SERDES-SERDES Interfaces with the 82546GB Ethernet Controller Application Note (AP-466).

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