Method for access to a portable memory data support with auxiliary module and portable memory data support

A portable memory data carrier comprising:

• at least one additional module and a controller configured to control an access to a memory element which can be accessed by means of data blocks according to a transmission protocol of the memory element,
• wherein the controller comprises an evaluation unit configured to evaluate incoming data blocks for whether routing information is present,
• wherein the presence of routing information in a data block indicates that the data in the data block are intended for the at least one additional module and the absence of routing information in the data block indicates that the data in the data block are intended for the memory element,
• wherein the controller routes data to at least one additional module if it has established that the data block contains routing information,
• wherein the controller is arranged so that upon recognizing routing information, the controller generates a temporary address and subsequently stores responses from the additional module to a command based on the application data at the temporary address.

A method of using a portable memory data carrier, the portable data carrier comprising at least one additional module and a controller for controlling an access to a memory element which can be accessed by means of data blocks according to a transmission protocol of the memory element, wherein the controller comprises an evaluation unit configured to evaluate incoming data blocks for whether routing information is present, the method of using the portable memory data carrier, comprising the following steps:

• generating application data intended for the additional module and containing an access thereto,
• generating routing information containing an identifier which can be recognized by the controller,
• combining the routing information and the application data to form a data stream,
• embedding the data stream in at least one data block according to a transmission protocol provided for accessing the memory element,
• transmitting the at least one data block to the memory data carrier in the transmission protocol adapted to the memory element,
• the evaluation unit of the controller determining whether a data block received by the portable memory data carrier contains routing information, wherein the presence of routing information in the data block indicates that the data in the data block are intended for the additional module and the absence of routing information in the data block indicates that the data in the data block are intended for the memory element, and
• the controller routing the application data contained in the data block to the additional module when the data block contains routing information,
• wherein application data to be transmitted are assigned a temporary working address in the memory data carrier and a response from the additional module to a command based on the application data is subsequently stored at the temporary working address.

A terminal comprising:

• a processor and a memory containing instructions when executed by the processor causing the terminal to
• access, via a standard interface, a portable memory data carrier comprising an additional module and a controller for controlling access to a memory element which can be accessed by means of data blocks according to a transmission protocol of the memory element,
• generate application data intended for the additional module and containing an access thereto,
• generate routing information containing an identifier which can be recognized by the controller,
• combine the routing information and the application data to form a data stream,
• embed the data stream in at least one data block according to a transmission protocol provided for accessing the memory element,
• transmit the at least one data block to the memory data carrier in the transmission protocol adapted to the memory element,
• determine, by the controller, whether a data block received by the portable memory data carrier contains routing information, wherein the presence of routing information in the data block indicates that the data in the data block are intended for the additional module and the absence of routing information in the data block indicates that the data in the data block are intended for the memory element, and
• routing, by the controller, the application data contained in the data block to the additional module by the controller when the data block contains routing information,
• wherein application data to be transmitted are assigned a temporary working address in the memory data carrier at which and a response from the additional module to a command based on the application data is subsequently stored at the temporary working address is subsequently provided.

A method of using a terminal configured to generate routing information for application data intended for the additional module, wherein the terminal accesses, via a standard interface, a portable memory data carrier comprising at least one additional module and a controller for controlling an access to a memory element which can be accessed by means of data blocks according to a transmission protocol of the memory element, the method of using the terminal, comprising the following steps:

• the terminal generating application data intended for the additional module and containing an access thereto,
• the terminal generating routing information containing an identifier which can be recognized by the controller,
• the terminal combining the routing information and the application data to form a data stream,
• the terminal embedding the data stream in at least one data block according to a transmission protocol provided for accessing the memory element,
• the terminal transmitting the at least one data block to the memory data carrier in the transmission protocol adapted to the memory element,
• determining by the controller whether a data block received by the portable memory data carrier contains routing information, wherein the presence of routing information in the data block indicates that the data in the data block are intended for the additional module and the absence of routing information in the data block indicates that the data in the data block are intended for the memory element, and
• routing the application data contained in the data block to the additional module by the controller when the data block contains routing information,
• wherein application data to be transmitted are assigned a temporary working address in the memory data carrier at which and a response from the additional module to a command based on the application data is subsequently stored at the temporary working address is subsequently provided.