IEC 62680-3-1:2017

Universal Serial Bus interfaces for data and power - Part 3-1: Universal Serial Bus 3.1 Specification

IEC 62680-3-1:2017 defines the latest generation USB industry standard, USB 3.1. The specification describes the protocol definition, types of transactions, bus management, and the programming interface required to design and build systems and peripherals that are compliant with this specification. USB 3.1 is primarily a performance enhancement to SuperSpeed USB 3.0 resulting in providing more than double the bandwidth for devices such as Solid State Drives and High Definition displays. It refers to Enhanced SuperSpeed as a collection of features or requirements that apply to both USB 3.0 and USB 3.1 bus operation. Additionally, where specific differences exist with regard to the USB 3.0 definition of SuperSpeed features or requirements, those differences will be uniquely identified as SuperSpeedPlus (or SSP) features or requirements – generally, “SuperSpeed” is in reference to 5 Gbps operation and “SuperSpeedPlus” is in reference to 10 Gbps operation.

Interfaces de bus universel en série pour les données et l'alimentation électrique - Partie 3-1: Spécification du bus universel en série 3.1

L'IEC 62680-3-1:2017 définit la norme industrielle USB de dernière génération, l'USB 3.1. La spécification décrit la définition du protocole, les types de transactions, la gestion du bus et l'interface de programmation exigée pour la conception et la création des systèmes et des périphériques conformes à la présente spécification. L'USB 3.1 constitue principalement une amélioration des performances de l'USB 3.0 SuperSpeed, offrant ainsi une bande passante plus de deux fois supérieure pour les dispositifs tels que les disques électroniques et les écrans haute définition.
La présente spécification entend par Enhanced SuperSpeed une collection de fonctionnalités ou d'exigences qui s'appliquent au fonctionnement des bus USB 3.0 et USB 3.1. En outre, s'il existe des différences spécifiques concernant la définition des fonctionnalités ou des exigences SuperSpeed de l'USB 3.0, ces différences seront identifiées de manière unique comme des fonctionnalités ou des exigences SuperSpeedPlus (ou SSP) en général, "SuperSpeed" fait référence à un fonctionnement à 5 Gbps et que "SuperSpeedPlus" fait référence à un fonctionnement à 10 Gbps.

General Information

• Status: Published
• Publication Date: 06-Mar-2017
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.220 - Galvanic cells and batteries
• ICS: 35.200 - Interface and interconnection equipment
• Technical Committee: TA 18 - Multimedia home systems and applications for end-user networks
• Current Stage: PPUB - Publication issued
• Start Date: 06-Mar-2017
• Completion Date: 07-Mar-2017

Standards Content (Sample)

IEC 62680-3-1 ®
Edition 1.0 2017-03
INTERNATIONAL
STANDARD
colour
inside
Universal Serial Bus interfaces for data and power –
Part 3-1: Universal Serial Bus 3.1 Specification

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

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IEC 62680-3-1 ®
Edition 1.0 2017-03
INTERNATIONAL
STANDARD
colour
inside
Universal Serial Bus interfaces for data and power –

Part 3-1: Universal Serial Bus 3.1 Specification

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.220; 35.200 ISBN 978-2-8322-3913-1

– 2 – IEC 62680-3-1:2017 © IEC 2017
© USB-IF:2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
UNIVERSAL SERIAL BUS INTERFACES FOR DATA AND POWER –

Part 3-1: Universal Serial Bus 3.1 Specification

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 Specifications,
Technical Reports, 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-
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 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 accepted 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 international 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 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 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 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 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 rights.
International Standard IEC 62680-3-1 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 was prepared by the USB Implementers Forum (USB-IF). The
structure and editorial rules used in this publication reflect the practice of the organization
which submitted it.
The text of this standard is based on the following documents:
CDV Report on voting
100/2589/CDV 100/2684/RVC
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.

© USB-IF:2015
A list of all 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 committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised 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 – IEC 62680-3-1:2017 © IEC 2017
© USB-IF:2015
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 submitted to the IEC under
the auspices of a special agreement between the IEC and the USB-IF.
The USB Implementers Forum, 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 development 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, 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 SPECIFICATIONS TO YOU DOES NOT PROVIDE YOU
WITH ANY LICENCE, 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, RAND-Z licensing arrangement for compliant products. 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".
© USB-IF:2015
Universal Serial Bus 3.1
Specification
Hewlett-Packard Company
Intel Corporation
Microsoft Corporation
Renesas Corporation
ST-Ericsson
Texas Instruments
Revision 1.0
July 26, 2013
– 6 – IEC 62680-3-1:2017 © IEC 2017
© USB-IF:2015
Revision History
Revision Comments Issue Date
1.0 Initial release. USB 3.0 November 12, 2008
Incorporated errata and ECNs June 6, 2011
1.0 Initial release. USB 3.1 July 26, 2013

INTELLECTUAL PROPERTY DISCLAIMER
THIS SPECIFICATION IS PROVIDED TO YOU “AS IS” WITH NO WARRANTIES
WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY, NON-
INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE. THE AUTHORS OF
THIS SPECIFICATION DISCLAIM ALL LIABILITY, INCLUDING LIABILITY FOR
INFRINGEMENT OF ANY PROPRIETARY RIGHTS, RELATING TO USE OR
IMPLEMENTATION OF INFORMATION IN THIS SPECIFICATION. THE PROVISION OF THIS
SPECIFICATION TO YOU DOES NOT PROVIDE YOU WITH ANY LICENSE, EXPRESS OR
IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS.

Please send comments to [e-mail]
For industry information, refer to the USB Implementers Forum web page at http://www.usb.org

All product names are trademarks, registered trademarks, or servicemarks of their respective owners.
ST-Ericsson, and Texas Instruments.
All rights reserved.
© USB-IF:2015
Acknowledgement of Technical Contribution
Dedication
Dedicated to the memory of Brad Hosler, the impact of whose
accomplishments made the Universal Serial Bus one of the
most successful technology innovations of the Personal
Computer era.
The authors of this specification would like to recognize the following people who participated
in the USB 3.0 Bus Specification technical workgroups. We would also like to acknowledge
the many others throughout the industry who provided feedback and contributed to the
development of this specification.
Promoter Company Employees
Alan Berkema Hewlett-Packard Company
Walter Fry Hewlett-Packard Company
Anthony Hudson Hewlett-Packard Company
David Roderick Hewlett-Packard Company
Kok Hong Chan Intel Corporation
Huimin Chen Intel Corporation
Bob Dunstan Intel Corporation
Dan Froelich Intel Corporation
Howard Heck Intel Corporation
Brad Hosler Intel Corporation
John Howard Intel Corporation
Rahman Ismail Intel Corporation
John Keys Intel Corporation
Yun Ling Intel Corporation
Andy Martwick Intel Corporation
Steve McGowan Intel Corporation
Ramin Neshati Intel Corporation
Duane Quiet Intel Corporation
Jeff Ravencraft Intel Corporation
Brad Saunders Intel Corporation
Joe Schaefer Intel Corporation
Sarah Sharp Intel Corporation
Micah Sheller Intel Corporation
Gary Solomon Intel Corporation
Karthi Vadivelu Intel Corporation
Clint Walker Intel Corporation
Jim Walsh Intel Corporation
Randy Aull Microsoft Corporation
Fred Bhesania Microsoft Corporation
Martin Borve Microsoft Corporation
Jim Bovee Microsoft Corporation
Stephen Cooper Microsoft Corporation
Lars Giusti Microsoft Corporation
Robbie Harris Microsoft Corporation

– 8 – IEC 62680-3-1:2017 © IEC 2017
© USB-IF:2015
Allen Marshall Microsoft Corporation
Kiran Muthabatulla Microsoft Corporation
Tomas Perez-Rodriguez Microsoft Corporation
Mukund Sankaranarayan Microsoft Corporation
Nathan Sherman Microsoft Corporation
Glen Slick Microsoft Corporation
David Wooten Microsoft Corporation
Rob Young Microsoft Corporation
Nobuo Furuya NEC Corporation
Hiroshi Kariya NEC Corporation
Masami Katagiri NEC Corporation
Yuichi Mizoguchi NEC Corporation
Kats Nakazawa NEC Corporation
Nobuyuki Mizukoshi NEC Corporation
Yutaka Noguchi NEC Corporation
Hajime Nozaki NEC Corporation
Kenji Oguma NEC Corporation
Satoshi Ohtani NEC Corporation
Takanori Saeki NEC Corporation
Eiji Sakai NEC Corporation
Hiro Sakamoto NEC Corporation
Hajime Sakuma NEC Corporation
Makoto Sato NEC Corporation
Hock Seow NEC Corporation
"Peter" Ch
...

IEC 62680-3-1 ®
Edition 1.0 2017-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Universal Serial Bus interfaces for data and power –
Part 3-1: Universal Serial Bus 3.1 Specification

Interfaces de bus universel en série pour les données et l'alimentation
électrique –
Partie 3-1: Spécification du bus universel en série 3.1

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or
by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from IEC,
or USB-IF at the respective address given below. Any questions about USB-IF copyright should be addressed to the
USB-IF. Enquiries about obtaining additional rights to this publication and other information requests should be
addressed to t he IEC or your local IEC member National Committee.

IEC Secretariat USB Implementers Forum, Inc.
3, rue de Varembé 3855 S.W. 153rd Drive
CH-1211 Geneva 20 Beaverton, OR 97003
Switzerland United States of America
Tel.: [phone] Tel. [phone]
[e-mail] [e-mail]
www.iec.ch www.usb.org
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that 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 corrigendum or an amendment might have been published.

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IEC 62680-3-1 ®
Edition 1.0 2017-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Universal Serial Bus interfaces for data and power –

Part 3-1: Universal Serial Bus 3.1 Specification

Interfaces de bus universel en série pour les données et l'alimentation

électrique –
Partie 3-1: Spécification du bus universel en série 3.1

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.220; 35.200 ISBN 978-2-8322-1059-7

– 2 – IEC 62680-3-1:2017
© USB-IF:2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
UNIVERSAL SERIAL BUS INTERFACES FOR DATA AND POWER –

Part 3-1: Universal Serial Bus 3.1 Specification

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 Specifications,
Technical Reports, 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-
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 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 accepted 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 international 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 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 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 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 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 rights.
International Standard IEC 62680-3-1 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 was prepared by the USB Implementers Forum (USB-IF). The
structure and editorial rules used in this publication reflect the practice of the organization
which submitted it.
The text of this standard is based on the following documents:
CDV Report on voting
100/2589/CDV 100/2684/RVC
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.

© USB-IF:2015
A list of all 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 committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised 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 – IEC 62680-3-1:2017
© USB-IF:2015
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 submitted to the IEC under
the auspices of a special agreement between the IEC and the USB-IF.
The USB Implementers Forum, 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 development 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, 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 SPECIFICATIONS TO YOU DOES NOT PROVIDE YOU
WITH ANY LICENCE, 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, RAND-Z licensing arrangement for compliant products. 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".
© USB-IF:2015
Universal Serial Bus 3.1
Specification
Hewlett-Packard Company
Intel Corporation
Microsoft Corporation
Renesas Corporation
ST-Ericsson
Texas Instruments
Revision 1.0
July 26, 2013
– 6 – IEC 62680-3-1:2017
© USB-IF:2015
Revision History
Revision Comments Issue Date
1.0 Initial release. USB 3.0 November 12, 2008
Incorporated errata and ECNs June 6, 2011
1.0 Initial release. USB 3.1 July 26, 2013

INTELLECTUAL PROPERTY DISCLAIMER
THIS SPECIFICATION IS PROVIDED TO YOU “AS IS” WITH NO WARRANTIES
WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY, NON-
INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE. THE AUTHORS OF
THIS SPECIFICATION DISCLAIM ALL LIABILITY, INCLUDING LIABILITY FOR
INFRINGEMENT OF ANY PROPRIETARY RIGHTS, RELATING TO USE OR
IMPLEMENTATION OF INFORMATION IN THIS SPECIFICATION. THE PROVISION OF THIS
SPECIFICATION TO YOU DOES NOT PROVIDE YOU WITH ANY LICENSE, EXPRESS OR
IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS.

Please send comments to [e-mail]
For industry information, refer to the USB Implementers Forum web page at http://www.usb.org

All product names are trademarks, registered trademarks, or servicemarks of their respective owners.
ST-Ericsson, and Texas Instruments.
All rights reserved.
© USB-IF:2015
Acknowledgement of Technical Contribution
Dedication
Dedicated to the memory of Brad Hosler, the impact of whose
accomplishments made the Universal Serial Bus one of the
most successful technology innovations of the Personal
Computer era.
The authors of this specification would like to recognize the following people who participated
in the USB 3.0 Bus Specification technical workgroups. We would also like to acknowledge
the many others throughout the industry who provided feedback and contributed to the
development of this specification.
Promoter Company Employees
Alan Berkema Hewlett-Packard Company
Walter Fry Hewlett-Packar
...