1、 INTERNATIONAL STANDARD IEC61523-3 First edition2004-09 IEEE 1497 Delay and power calculation standards Part 3:Standard Delay Format(SDF)for the electronic design process Reference number IEC 61523-3(E):2004 IEEE Std.1497(E):2001 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LO
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9、 First edition2004-09 IEEE 1497Commission Electrotechnique InternationaleInternational Electrotechnical Commission IEEE 2004 Copyright-all rights reserved IEEE is a registered trademark in the U.S.Patent&Trademark Office,owned by the Institute of Electrical and Electronics Engineers,Inc.No part of t
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12、CHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.CONTENTS FOREWORD.3 IEEE Introduction.7 1.Overview.8 1.1 Scope.8 1.2 Organization of this standard.8 2.References.9 3.Conventions.9 3.1 Terminology conventions.9 3.2 Syntactic conventions.9 4.SDF in the design process
13、.12 4.1 Sharing of timing data.12 4.2 Using multiple SDF files in one design.12 4.3 Timing data and constraints.13 4.4 Timing environments.13 4.5 Back-annotation of timing data for design analysis.13 4.6 Forward-annotation of timing constraints for design synthesis.15 4.7 Timing models supported by
14、SDF.16 5.Defining the standard delay format.18 5.1 SDF file content.18 5.2 Header section.20 5.3 Cells.25 5.4 Delays.28 5.5 Timing checks.46 5.6 Labels.60 5.7 Timing environment.62 Annex A(normative)Syntax of SDF.74 Annex B(informative)SDF file examples.84 Annex C(informative)List of Participants.89
15、 IEC 61523-3:2004(E)IEEE 1497-2001(E)2 Published by IEC under licence from IEEE.2004 IEEE.All rights reserved.LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DELAY AND POWER CALCULATION STAND
16、ARDS Part 3:Standard Delay Format(SDF)for the electronic design process FOREWORD 1)The International Electrotechnical Commission(IEC)is a worldwide organization for standardization comprising all national electrotechnical committees(IEC National Committees).The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields.To this end and in addition to other activities,IEC publishes International Standards,Technical Spe
