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82545GM Gigabit Ethernet Controller Specification Update

June 6, 2006 The 82545GM Gigabit Ethernet Controller may contain design defects or errors known as errata that may cause the product to deviate from published specifications. Current characterized errata are documented in this Specification Update. i 82545GM GIGABIT ETHENET CONTROLLER SPECIFICATION UPDATE 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. may contain design defects or errors known as errata which may cause the product to deviate from published 82545GM Gigabit Ethernet Controller 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- http://www.Intel.com. 4725 or by visiting Intel’s web site at Copyright © 2003 – 2006, Intel Corporation. Intel® is a trademark or registered trademark of Intel Corporation or its subsidiaries in the United States and other countries. * Brands and names may be claimed as the property of others. ii CONTENTS 82545GM GIGABIT ETHERNET CONTROLLER SPECIFICATION UPDATE CONTENTS .........................................................................................................................................................3 PREFACE............................................................................................................................................................5 NOMENCLATURE ..............................................................................................................................................5 COMPONENT IDENTIFICATION VIA PROGRAMMING INTERFACE ..............................................................5 GENERAL INFORMATION .................................................................................................................................6 82545GM Component Marking Information..................................................................................................6 SUMMARY TABLE OF CHANGES ....................................................................................................................7 Codes Used in Summary Tables ..................................................................................................................7 SPECIFICATION CHANGES ..............................................................................................................................9 ERRATA ............................................................................................................................................................10 1. XOFF from Link Partner can Pause Flow-Control (XON/XOFF) Transmission.................................10 2. Transmit Descriptor use of RS for non-data (Context & Null) Descriptors ........................................10 3. LSO Premature Descriptor Write Back..............................................................................................10 4. Message Signaled Interrupt Feature May Corrupt Write Transactions .............................................11 5. Link Establishment or Communication Problems in Fiber Mode When Link Partner Does Not Fully Comply with the IEEE 802.3 Specification..............11 6. Wakeup Packet Memory (WUPM) cleared upon reset......................................................................12 7. Unexpected RMCP ACK packets in ASF mode ................................................................................12 8. Exceeding PCI Power Management Specification Limit of 375mA current during reset and power state transitions.................................12 9. Inbound and Outbound reads not fully decoupled in PCI-X mode ....................................................12 10. Hang in PCI-X systems due to 2k Buffer Overrun during Transmit Operation ..................................13 11. CRC Errors due to Rate Adaptation FIFO Overflow in Fiber Mode...................................................13 12. Transmit Descriptors May Be Written Back Read the full 82545GM Gigabit Ethernet Controller Specification Update.

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