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Intel 8255x 10/100 Mbps Ethernet Controller Family Open Source Software Developer Manual

January 2006 Revision 1.3 ® Information in this document is provided in connection with Intel products. This specification, the Intel 8255x 10/100 Mbps Ethernet Controller Family Open Source Software Developer Manual, is provided “as is” with no warranties whatsoever, including any warranty of merchantability, noninfringement, fitness for any particular purpose, or any warranty otherwise arising out of any proposal, specification or sample. Intel products are not intended for use in medical, life saving, life sustaining applications. Intel may make changes to specifications and product descriptions at any time, without notice. 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 Intel 82557, 82558, 82559, 82550, and 82551 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. The information in this document is furnished for informational use only, is subject to change without notice, and should not be construed as a ® ® PRO/100 drivers for the Intel PRO/100 family of commitment by Intel Corporation. It is intended to enable the maintenance of the open source Intel adapters. 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, 2006. Intel Corporation. * 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 Intel 8255x 10/100 Mbps Ethernet Controller Family Open Source Software Developer Manual Contents Contents 1 2 3 4 Introduction....................................................................................................................................1 1.1 Scope....................................................................................................................................1 1.2 Document Conventions ........................................................................................................2 1.2.1 Device References ..................................................................................................2 1.2.2 Numbering ...............................................................................................................2 1.2.3 Signal Name Representation...................................................................................2 1.2.4 Memory Alignment Terminology ..............................................................................2 Adapter and Controller Overview ................................................................................................5 2.1 Adapter Block Diagram.........................................................................................................5 2.2 Intel Fast Ethernet MAC Features ........................................................................................6 2.2.1 82557 Features........................................................................................................6 2.2.2 82558 Features........................................................................................................6 2.2.3 82559, 82550, 82551, and 82562 Features.............................................................7 2.3 Working with the Physical Layer...........................................................................................7 Power Management Interface.......................................................................................................9 3.1 Low Power Mode Requirements...........................................................................................9 3.2 Device Power States ............................................................................................................9 3.3 Power Management Registers .............................................................................................9 3.4 Link Operation ....................................................................................................................10 PCI Interface.................................................................................................................................11 4.1 PCI Configuration Space ....................................................................................................11 4.1.1 Vendor ID (Offset 0)...............................................................................................12 4.1.2 Device ID (Offset 2) ...............................................................................................12 4.1.3 Command Register (Offset Read the full Intel 8255x 10/100 Mbps Ethernet Controller Family Open Source Software Developer Manual.

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