ISO/IEC 7816-12:2005
(Main)Identification cards - Integrated circuit cards — Part 12: Cards with contacts — USB electrical interface and operating procedures
Identification cards - Integrated circuit cards — Part 12: Cards with contacts — USB electrical interface and operating procedures
ISO/IEC 7816-12:2005 specifies the operating conditions of an integrated circuit card that provides a USB interface. An integrated circuit card with a USB interface is named USB-ICC. ISO/IEC 7816-12:2005 specifies the electrical conditions when a USB-ICC is operated by an interface device - for those contact fields that are not used, when the USB interface is applied; the USB standard descriptors and the USB-ICC class specific descriptor; the data transfer between host and USB-ICC using bulk transfers or control transfers; the control transfers which allow two different protocols named version A and version B; the (optional) interrupt transfers to indicate asynchronous events; status and error conditions. ISO/IEC 7816-12:2005 provides two protocols for control transfers. This is to support the protocol T=0 (version A) or to use the transfer on APDU level (version B). ISO/IEC 7816-12:2005 provides the state diagrams for the USB-ICC for each of the transfers (bulk transfers, control transfers version A and version B). Examples of possible sequences which the USB-ICC must be able to handle are given in an informative annex.
Cartes d'identification — Cartes à circuit intégré — Partie 12: Cartes à contacts — Interface électrique USB et procédures de fonctionnement
General Information
Standards Content (Sample)
INTERNATIONAL ISO/IEC
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 à circuit intégré —
Partie 12: Cartes à contacts — Interface électrique USB et procédures
de fonctionnement
Reference number
ISO/IEC 7816-12:2005(E)
©
ISO/IEC 2005
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ISO/IEC 7816-12:2005(E)
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ISO/IEC 7816-12:2005(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope. 1
2 Normative references. 2
3 Terms and definitions. 2
3.1 Device. 2
3.2 Terms and definitions used in other specifications.2
4 Abbreviations and notation . 2
5 Electrical characteristics of the contacts. 3
6 USB-ICC operated by an interface device. 3
7 USB Descriptors. 4
7.1 Standard Descriptors. 4
7.1.1 The Standard Device Descriptor . 4
7.1.2 The Standard Configuration Descriptor . 5
7.1.3 The Standard Interface Descriptor. 6
7.1.4 The Standard Endpoint Descriptors . 7
7.2 The Class Specific Descriptor . 8
8 Data transfer between host and USB-ICC .10
8.1 Bulk transfers. 10
8.1.1 Bulk messages.
...
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