Division III.6 Technical Characteristics and Transmission ProtocolsF1

The format shall be ID-1 (normal size, see ISO/IEC 7810).

The card shall support transmission protocol T=1 in compliance with ISO/IEC 7816-3. Additionally other transmission protocols may be supported, e.g. T=0, USB or contactless protocols.

For bit transmission the ‘ direct convention ’ shall be applied (see ISO/IEC 7816-3).

1. (A)

   Supply voltage, programming voltage

   The card shall work with Vcc = 3V (+/0.3V) or with Vcc = 5V (+/0,5V). The card shall not require a programming voltage at pin C6.

2. (B)

   Answer to reset

   The Information Field Size Card byte shall be presented at the ATR in character TA3. This value shall be at least ‘ 80h ’ (=128 bytes).

3. (C)

   Protocol parameter selection

   The support of Protocol parameter selection (PPS) according to ISO/IEC 7816-3 is mandatory. It is used for selecting T=1, if T=0 is additionally present in the card, and to negotiate the Fi/Di parameters for achieving higher transmission rates.

4. (D)

   Transmission protocol T = 1

   The support of chaining is mandatory.

   The following simplifications are allowed:

   • NAD Byte: not used (NAD should be set to ‘ 00 ’ ),

   • S-Block ABORT: not used,

   • S-Block VPP state error: not used.

   The information field size device (IFSD) shall be indicated from the IFD immediately after ATR, i.e. the IFD shall transmit the S-Block IFS Request after ATR and the card shall send back S-Block IFS. The recommended value for IFSD is 254 bytes.