Method for performing transaction between passive reader and near field communication device of e.g. portable telephone, involves receiving card application responses from host processor, and transferring responses to integrated circuit

摘要

The method involves allowing a reader application emulation program (RAEP) in a passive contactless integrated circuit (RCIC) i.e. passive reader, where the program provides reader application commands (CAPDU1) and processes card application responses (RAPDU1). A contactless communication interface (CLF) is placed in an active mode in which the interface emits a magnetic field (FLD) and establishes communication with the circuit. The commands are received from the circuit and transferred to a host processor (HP1). The responses are received from the processor and transferred to the circuit. The host processor is in the form of universal integrated circuit card or baseband processor of a mobile telephone. Independent claims are also included for the following: (1) a passive contactless integrated circuit comprising a protocol inversion program (2) a near field communication device comprising a near field communication controller.