ISO/IEC INTERNATIONAL STANDARD 7816-12 First edition 2005-10-01 Identification cards Integrated circuit cards - Part 12: Cards with contacts USB electrical interface and operating procedures Cartes d'identification - Cartes a circuit intégreé - Partie 12: Cartes a contacts — Interface électrique UsB et procédures defonctionnement Reference number ISO/IEC 7816-12:2005(E) IEC Copyright International Organization for Standardization @ISO/IEC2005 ted without license from IHS Not for Resale ISO/IEC 7816-12:2005(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The IsO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below ?ISO/IEC2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland pyrgheataganizationfSdadizatio @ ISO/IE 2005 - All rights reserved ted without license from IHS Not for Resale ISO/IEC 7816-12:2005(E) Contents Page Foreword. Introduction 1 Scope 2 Normative references . 3 Terms and definitions.. 3.1 Device.. 3.2 Terms and definitions used in other specifications 4 Abbreviations and notation 5 Electrical characteristics of the contacts... 6 USB-ICC operated by an interface device.. 7 USB Descriptors 7.1 Standard Descriptors 7.1.1 TheStandardDeviceDescriptol 7.1.2 The Standard Configuration Descriptor. 7.1.3 TheStandard Interface Descriptor.. 7.1.4 The Standard Endpoint Descriptors 7.2 The Class Specific Descriptor.. 8 Data transfer between host and USB-ICC, 10 8.1 Bulk transfers. 10 8.1.1 Bulk messages...... 10 8.1.2 ATRandtransmissionof data 13 8.1.3 Status and error conditions. 15 8.2 Control transfers 16 8.2.1 16 8.2.2 Version B. 23 8.3 Interrupt transfers. 29 8.3.1 Virtual insertion/removal event .. 29 Annex A (informative) Notation for the state diagrams... 30 Annex B (informative) Scenarios for USB transfers .. 31 Annex C (informative) Terms and definitions in the UsB specification .. Annex D (informative) Class specific descriptor Smart Card device class.. 46 Bibliography 50 CopyrightIntenatinalOganzanstanadzation Allrightsreserved ii I without license from IHS Not for Resale ISO/IEC 7816-12:2005(E) Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission)formthespecializedsystemforworldwidestandardization.Nationalbodiesthataremembersof ISOorIECparticipate in thedevelopment ofInternationalStandards through technical committees and non-governmental, in liaison with IsO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approva