ANSI-INCITS-369-2003.pdf
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1、ANSI INCITS 369-2003 for Information Technology SCSI Signal Modeling-2 (SSM-2) ANSI INCITS 369-2003 Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 13:44:02 MDTNo reproduction
2、or networking permitted without license from IHS -,-,- ANSI INCITS 369-2003 American National Standard for Information Technology SCSI Signal Modeling-2 (SSM-2) Secretariat Information Technology Industry Council (ITI) Approved June 5, 2003 American National Standards Institute, Inc. Abstract This s
3、tandard defines a common methodology for modeling and simulating SCSI systems accurately and consistantly. It establishes the requirements for the exchange of perfomance information between com- ponents suppliers and system simulators. It defines the acceptable methods for extracting the electrical
4、and perfomance attributes of the constituent parts of the SCSI parallel interface. It establishes a common methodolgy for simulating the SCSI physical environment. It is intended to be used in conjunction with the requirements within the SCSI Parallel Interface (SPI-x) family of standards. Copyright
5、 American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 13:44:02 MDTNo reproduction or networking permitted without license from IHS -,-,- Approval of an American National Standard requires rev
6、iew by ANSI that the requirements for due process, consensus, and other criteria for approval have been met by the standards developer. Consensus is established when, in the judgement of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected in
7、terests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made towards their resolution. The use of American National Standards is completely voluntary; their ex
8、istence does not in any respect preclude anyone, whether he has approved the standards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. The American National Standards Institute does not develop standards and will in no c
9、ircumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests for interpretations should be addressed to the s
10、ecretariat or sponsor whose name appears on the title page of this standard. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw
11、 this standard. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute. American National Standard Published by American National Standards Institute, Inc. 25 West 43rd Street, New York, NY 10036 Copy
12、right 2003 by Information Technology Industry Council (ITI) All rights reserved. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without prior written permission of ITI, 1250 Eye Street NW, Washington, DC 20005. Printed in the United States
13、of America CAUTION: The developers of this standard have requested that holders of patents that may be required for the implementation of the standard disclose such patents to the publisher. However, neither the developers nor the publisher have undertaken a patent search in order to identify which,
14、 if any, patents may apply to this standard. As of the date of publication of this standard and following calls for the identification of patents that may be required for the implementation of the standard, no such claims have been made. No further patent search is conducted by the de- veloper or pu
15、blisher in respect to any standard it processes. No representation is made or implied that licenses are not required to avoid infringement in the use of this standard. Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OCon
16、nor, Maurice Not for Resale, 04/29/2007 13:44:02 MDTNo reproduction or networking permitted without license from IHS -,-,- i Page Foreword . iv Introduction. vii 1 Scope .1 2 References .2 2.1 Overview .2 2.2 Approved references .2 2.3 References under development 2 3 Definitions, acronyms, symbols,
17、 abbreviations, keywords, and conventions .3 3.1 Definitions .3 3.2 Acronyms 9 3.3 Symbols and abbreviations .10 3.4 Keywords 11 3.5 Conventions 11 4 General .13 4.1 Overview .13 4.2 Signal modeling purposes .14 4.2.1 Overview 14 4.2.2 Physical components and signals 14 4.2.2.1 Relationship between
18、physical and modeling terminology 14 4.2.2.2 Elemental components 14 4.2.2.3 Composite components 15 4.2.2.4 Systems 15 4.2.2.5 Signals and measurement points 15 4.2.2.6 Run length dependent driver signals .16 4.2.2.7 Interactions between signals on different signal lines .16 4.2.3 Viewpoints .17 4.
19、3 Application to measurement 19 4.4 Practical considerations for creating models .20 4.5 Relationship between components of the modeling environment .21 4.6 Relationship between signal specifications in standards and modeling 22 4.7 Accuracy and model validation considerations .22 5 Methodologies 23
20、 5.1 Overview .23 5.2 Behavioral .23 5.2.1 IBIS 23 5.2.1.1 Overview .23 5.2.1.2 IBIS model creation .24 5.2.1.3 Pre-modeling activities 24 5.2.1.4 Data extraction 26 5.2.1.5 Creating the IBIS file .32 5.2.1.6 IBIS model validation 40 5.2.1.7 IBIS model verification 40 5.2.1.8 Acceptance criteria 41
21、5.2.2 Maxwell matrices 42 5.2.2.1 Overview .42 5.2.2.2 Empirical extraction .42 5.2.2.3 Validation 43 5.2.3 Theoretical extraction .43 5.2.4 Interpreting Maxwell matrices 44 5.3 Circuit models .45 6 Models 47 6.1 Overview .47 6.2 General requirements .47 6.2.1 Applicability 47 Contents Copyright Ame
22、rican National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 13:44:02 MDTNo reproduction or networking permitted without license from IHS -,-,- Page ii 6.2.2 Documentation .47 6.2.3 Model name .48 6.2.4
23、 Model class 48 6.2.5 Model boundary .48 6.2.6 Model limitations or dependencies .48 6.2.7 Model creation methodology 49 6.2.7.1 Model creation stimuli .49 6.2.7.2 Amplitude and timing .49 6.2.7.3 Frequency range .49 6.2.7.4 Rise time .49 6.2.8 Model validation .50 6.2.8.1 Accuracy requirements .50
24、6.2.8.2 Model validation stimuli .50 6.2.8.3 Amplitude and timing .50 6.2.8.4 Frequency range .51 6.2.8.5 Rise time .51 6.2.9 Model support contact information .51 6.2.10 License agreement .51 6.3 Interconnect component models .51 6.3.1 Overview 51 6.3.2 Cables 51 6.3.2.1 Description 51 6.3.2.2 Mode
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