ANSI-INCITS-367-2003.pdf
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1、ANSI INCITS 367-2003 for Information Technology SCSI Parallel Interface-5 (SPI-5) ANSI INCITS 367-2003 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 08:20:47 MDTNo reproducti
2、on or networking permitted without license from IHS -,-,- 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 08:20:47 MDTNo reproduction or networking permitted without license fr
3、om IHS -,-,- ANSI INCITS 367-2003 American National Standard for Information Technology SCSI Parallel Interface-5 (SPI-5) Secretariat Information Technology Industry Council (ITI) Approved June 5, 2003 American National Standards Institute, Inc. Abstract This standard defines the electrical measurem
4、ent techniques and acceptable performance limits for vari- ous test parameters on the collection of wires, connectors, and circuits that form the electrical path be- tween SCSI devices. This document specifies the details of the measurement methodology to minimize the error in results from different
5、 electrical testing laboratories. Details are given at each stage of testing including calibration, fixturing and sample preparation. Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29
6、/2007 08:20:47 MDTNo reproduction or networking permitted without license from IHS -,-,- Approval of an American National Standard requires review by ANSI that the requirements for due process, consensus, and other criteria for approval have been met by the standards developer. Consensus is establis
7、hed when, in the judgement of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be con
8、sidered, and that a concerted effort be made towards their resolution. The use of American National Standards is completely voluntary; their existence does not in any respect preclude anyone, whether he has approved the standards or not, from manufacturing, marketing, purchasing, or using products,
9、processes, or procedures not conforming to the standards. The American National Standards Institute does not develop standards and will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an
10、 American National Standard in the name of the American National Standards Institute. Requests for interpretations should be addressed to the secretariat or sponsor whose name appears on the title page of this standard. CAUTION NOTICE: This American National Standard may be revised or withdrawn at a
11、ny time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this standard. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standa
12、rds Institute. American National Standard Published by American National Standards Institute, Inc. 25 West 43rd Street, New York, NY 10036 Copyright 2003 by Information Technology Industry Council (ITI) All rights reserved. No part of this publication may be reproduced in any form, in an electronic
13、retrieval system or otherwise, without prior written permission of ITI, 1250 Eye Street NW, Washington, DC 20005. Printed in the United States of America CAUTION: The developers of this standard have requested that holders of patents that may be required for the implementation of the standard disclo
14、se such patents to the publisher. However, neither the developers nor the publisher have undertaken a patent search in order to identify which, 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
15、 required for the implementation of the standard, no such claims have been made. No further patent search is conducted by the de- veloper or publisher 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
16、 standard. 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 08:20:47 MDTNo reproduction or networking permitted without license from IHS -,-,- i Contents Page Foreword . xxi Int
17、roduction xxiii 1 Scope .1 2 Normative references .3 2.1 Normative references 3 2.2 Approved references .3 2.3 References under development 4 2.4 Other references .4 3 Definitions, symbols, abbreviations, and conventions 4 3.1 Definitions .4 3.2 Symbols and abbreviations .11 3.3 Keywords 11 3.4 Conv
18、entions 12 3.5 Notation for Procedures and Functions .13 4 General .14 4.1 General overview 14 4.2 Cables, connectors, signals, transceivers .14 4.3 Physical architecture of bus segment .14 4.4 Driver-receiver connections 15 4.5 Physical topology details and definitions .15 4.6 Bus segment loading .
19、17 4.7 Termination requirements .18 4.8 SCSI device Addressing .18 4.9 Clocking methods for data transfers .18 4.10 Paced transfer on a SCSI bus .21 4.11 Data transfers 23 4.11.1 Data transfer modes .23 4.11.1.1 Asynchronous transfers 23 4.11.1.2 Synchronous transfers 23 4.11.1.3 Paced transfers .23
20、 4.11.2 ST DATA phase parallel transfers 23 4.11.3 DT DATA phase parallel transfers .24 4.11.3.1 DT DATA phase parallel transfers format .24 4.11.3.2 Data group transfers .24 4.11.3.3 Information unit transfers 24 4.12 Negotiation 25 4.12.1 Negotiation introduction .25 4.12.2 Negotiation algorithm .
21、25 4.12.3 When to negotiate 26 4.12.4 Negotiable fields .27 4.12.4.1 Negotiable fields introduction 27 4.12.4.2 Transfer agreements .28 4.12.4.3 Transfer period factor 29 4.12.4.4 REQ/ACK offset 31 4.12.4.5 Transfer width exponent 32 4.12.4.6 Protocol options 32 4.12.4.6.1 Protocol options introduct
22、ion 32 4.12.4.6.2 IU_REQ 33 4.12.4.6.3 DT_REQ .34 4.12.4.6.4 QAS_REQ 34 4.12.4.6.5 HOLD_MCS .34 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 08:20:47 MDTNo reproduction or n
23、etworking permitted without license from IHS -,-,- ii 4.12.4.6.6 WR_FLOW .35 4.12.4.6.7 RD_STRM 35 4.12.4.6.8 RTI .35 4.12.4.6.9 PCOMP_EN .35 4.12.5 Negotiable field combinations 36 4.12.6 Message restrictions 38 4.12.7 Negotiation message sequences .38 4.12.7.1 Negotiation message sequences overvie
24、w .38 4.12.7.2 SCSI initiator port originated PPR negotiation 39 4.12.7.3 SCSI initiator port originated WDTR negotiation .41 4.12.7.4 SCSI initiator port originated SDTR negotiation 43 4.12.7.5 SCSI target port originated WDTR negotiation .45 4.12.7.6 SCSI target port originated SDTR negotiation 47
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