1、 IEC 62680-1 Edition 1.0 2013-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Universal serial bus interfaces for data and power Part 1: Universal serial bus specification, revision 2.0 Interfaces de bus universel en srie pour les donnes et lalimentation lectrique Partie 1: Spcification du bus univer
2、sel en srie, rvision 2.0 IEC 62680-1:2013 colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2013 IEC, Geneva, Switzerland Copyright 2000 USB-IF All rights reserved. Unless otherw ise specified, no part of this publication may be reproduced or utilized in any f orm or by any means, elec
3、tronic or mechanical, including photocopying and microfilm, w ithout permission in w riting from either IEC or IECs member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, pleas
4、e contact the address below or your local IEC member National Committee for further information. Droits de reproduction rservs. Sauf indication contraire, aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd, lectronique ou mcanique,
5、y compris la photocopie et les m icrof ilm s, sans laccord crit de la CE I ou du Com it national de la CE I du pays du dem andeur. Si vous avez des questions sur le copyright de la CEI ou si vous dsirez obtenir des droits supplmentaires sur cette publication, utilisez les coordonnes ci-aprs ou conta
6、ctez le Com it national de la CE I de votre pays de rsidence. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varemb Fax: +41 22 919 03 00 CH-1211 Geneva 20 infoiec.ch Sw itzerland w ww.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization th
7、at prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might
8、have been published. Useful links: IEC publications search - www.iec.ch/searchpub The advanced search enables you to find IEC publications by a variety of criteria (reference number, text, technical committee,). It also gives information on projects, replaced and w ithdraw n publications. IE C Just
9、P ublished - w ebstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published details all new publications released. Available on-line and also once a m onth by em ail. Electropedia - www.electropedia.org The worlds leading online dictionary of electronic and electrical ter
10、ms containing more than 30 000 terms and definitions in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical Vocabulary (IE V) on-line. Customer Service Centre - w ebstore.iec.ch/csc If you w ish to give us your feedback on this publicat
11、ion or need further assistance, please contact the Customer Service Centre: csciec.ch. A propos de la CEI La Commission Electrotechnique Internationale (CEI) est la premire organisation mondiale qui labore et publie des Normes internationales pour tout ce qui a trait llectricit, llectronique et aux
12、technologies apparentes. A propos des publications CEI Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possdez ldition la plus rcente, un corrigendum ou amendement peut avoir t publi. Liens utiles: Recherche de publications CEI - www.iec.ch/search
13、pub La recherche avance vous permet de trouver des publications CEI en utilisant diffrents critres (numro de rf rence, texte, com it dtudes,). Elle donne aussi des informations sur les projets et les publications rem places ou retires. Just Published CEI - w ebstore.iec.ch/justpublished Restez infor
14、m sur les nouvelles publications de la CEI. Just Published dtaille les nouvelles publications parues. Disponible en ligne et aussi une f ois par m ois par email. Electropedia - www.electropedia.org Le premier dictionnaire en ligne au monde de termes lectroniques et lectriques. Il contient plus de 30
15、 000 termes et dfinitions en anglais et en franais, ainsi que les termes quivalents dans les langues additionnelles. Egalement appel Vocabulaire Electrotechnique International (VE I) en ligne. Service Clients - w ebstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou
16、 si vous avez des questions contactez-nous: csciec.ch. IEC 62680-1 Edition 1.0 2013-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Universal serial bus interfaces for data and power Part 1: Universal serial bus specification, revision 2.0 Interfaces de bus universel en srie pour les donnes et lalime
17、ntation lectrique Partie 1: Spcification du bus universel en srie, rvision 2.0 INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XH ICS 35.200 PRICE CODE CODE PRIX ISBN 978-2-8322-1083-3 Registered trademark of the International Electrotechnical Commission Marque d
18、pose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colour inside 2 62680-1 IEC:2013 USB-IF:2000 INTERNATIONAL ELEC
19、TROTECHNICAL COMMISSION _ UNIVERSAL SERIAL BUS INTERFACES FOR DATA AND POWER Part 1: Universal serial bus specification, revision 2.0 FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (I
20、EC 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 Specifications, Technical Reports
21、, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-
22、 governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of
23、 IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are a
24、ccepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote interna
25、tional uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the
26、 latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users
27、should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other
28、damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use
29、 of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent r
30、ights. International Standard IEC 62680-1 has been prepared by technical area 14: Interfaces and methods of measurement for personal computing equipment, of IEC technical committee 100: Audio, video and multimedia systems and equipment. The text of this standard is based on documents prepared by the
31、 USB Implementers Forum (USB-IF). The structure and editorial rules used in this publication reflect the practice of the organization which submitted it. 62680-1 IEC:2013 3 USB-IF:2000 The text of this standard is based on the following documents: FDIS Report on voting 100/2156/FDIS 100/2188/RVD Ful
32、l information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. A list of all the parts in the IEC 62680 series, published under the general title Universal serial bus interfaces for data and power can be found on the IEC website. The
33、committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised
34、edition, or amended. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. 4 62680-1 IEC:2013 USB-IF
35、:2000 INTRODUCTION The IEC 62680 series is based on a series of specifications that were originally developed by the USB Implementers Forum (USB-IF). These specifications were to submitted to the IEC under the auspices of a special agreement between the IEC and the USB IF. The USB Implementers Forum
36、, Inc.(USB-IF) is a non-profit corporation founded by the group of companies that developed the Universal Serial Bus specification. The USB-IF was formed to provide a support organization and forum for the advancement and adoption of Universal Serial Bus technology. The Forum facilitates the develop
37、ment of high-quality compatible USB peripherals (devices), and promotes the benefits of USB and the quality of products that have passed compliance testing. ANY USB SPECIFICATIONS ARE PROVIDED TO YOU “AS IS, “WITH NO WARRANTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY, NON- INFRINGEMENT
38、, OR FITNESS FOR ANY PARTICULAR PURPOSE. THE USB IMPLEMENTERS FORUM AND THE AUTHORS OF ANY USB SPECIFICATIONS DISCLAIM ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PROPRIETARY RIGHTS, RELATING TO USE OR IMPLEMENTATION OR INFORMATION IN THIS SPECIFICAITON. THE PROVISION OF ANY USB SPECI
39、FICATIONS TO YOU DOES NOT PROVIDE YOU WITH ANY LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS. Entering into USB Adopters Agreements may, however, allow a signing company to participate in a reciprocal, royalty-free licensing arrangement for compliant prod
40、ucts. For more information, please see: http:/www.usb.org/developers/docs/ http:/www.usb.org/developers/devclass_docs#approved IEC DOES NOT TAKE ANY POSITION AS TO WHETHER IT IS ADVISABLE FOR YOU TO ENTER INTO ANY USB ADOPTERS AGREEMENTS OR TO PARTICIPATE IN THE USB IMPLEMENTERS FORUM.” This series
41、covers the Universal Series Bus interfaces for data and power and consists of the following parts: IEC 62680-1, Universal Serial Bus interfaces for data and power - Part 1: Universal Serial Bus Specification, Revision 2.0 IEC 62680-2, Universal Serial Bus interfaces for data and power - Part 2: USB
42、Micro-USB Cables and Connectors Specification, Revision 1.01 IEC 62680-3, Universal Serial Bus interfaces for data and power - Part 3: USB Battery Charging Specification, Revision 1.2 IEC 62680-4, Universal Serial Bus interfaces for data and power - Part 4: Universal Serial Bus Cables and Connectors
43、 Class Document Revision. 2.0 This part of the IEC 62680 series consists of several distinct parts: the main body of the text, which consists of the original specification and all ECN and Errata developed by the USB-IF; 62680-1 IEC:2013 5 USB-IF:2000 CONTENTS 1 Chapter 1 Introduction . 17 1.1 Motiva
44、tion . 17 1.2 Objective of the Specification 17 1.3 Scope of the Document . 18 1.4 USB Product Compliance 18 1.5 Document Organization . 18 2 Chapter 2 Terms and Abbreviations . 19 3 Chapter 3 Background . 25 3.1 Goals for the Universal Serial Bus . 25 3.2 Taxonomy of Application Space. 25 3.3 Featu
45、re List . 26 4 Chapter 4 Architectural Overview 28 4.1 USB System Description . 28 4.1.1 Bus Topology 28 4.2 Physical Interface 29 4.2.1 Electrical . 30 4.2.2 Mechanical 30 4.3 Power 30 4.3.1 Power Distribution . 31 4.3.2 Power Management . 31 4.4 Bus Protocol 31 4.5 Robustness . 31 4.5.1 Error Dete
46、ction 32 4.5.2 Error Handling . 32 4.6 System Configuration 32 4.6.1 Attachment of USB Devices . 32 4.6.2 Removal of USB Devices . 32 4.6.3 Bus Enumeration . 32 4.7 Data Flow Types . 33 4.7.1 Control Transfers . 33 4.7.2 Bulk Transfers . 33 4.7.3 Interrupt Transfers . 33 4.7.4 Isochronous Transfers
47、. 33 4.7.5 Allocating USB Bandwidth . 34 4.8 USB Devices . 34 4.8.1 Device Characterizations . 34 4.8.2 Device Descriptions . 35 4.9 USB Host: Hardware and Software . 37 4.10 Architectural Extensions 37 5 Chapter 5 USB Data Flow Model 38 5.1 Implementer Viewpoints 38 5.2 Bus Topology 39 5.2.1 USB Ho
48、st 40 5.2.2 USB Devices . 40 6 62680-1 IEC:2013 USB-IF:2000 5.2.3 Physical Bus Topology 41 5.2.4 Logical Bus Topology 42 5.2.5 Client Software-to-function Relationship 43 5.3 USB Communication Flow . 43 5.3.1 Device Endpoints. 45 5.3.2 Pipes . 46 5.3.3 Frames and Microframes . 48 5.4 Transfer Types
49、48 5.4.1 Table Calculation Examples 49 5.5 Control Transfers 50 5.5.1 Control Transfer Data Format 50 5.5.2 Control Transfer Direction . 51 5.5.3 Control Transfer Packet Size Constraints 51 5.5.4 Control Transfer Bus Access Constraints . 52 5.5.5 Control Transfer Data Sequences 54 5.6 Isochronous Transfers . 55 5.6.1 Isochronous Transfer Data Format 55 5.6.2 Isochronous Transfer Direction 55 5.6.3 Isochronous Transfer Packet S
