short-range wireless device mounted on portable terminal equipment

摘要

A contact less function chip (C) includes a communication control circuit (35) for contact less communication and a memory (34) which stores setting data items (34a, 34b, 34c, 34d, ···) of various communication protocols for contact less communication applied to the communication control circuit (35) for contact less communication. When the contact less function chip (C) is mounted on a mobile telephone (P), it acquires equipment information (31) of the mobile telephone (P), determines a communication protocol for contact less communication to be preferentially performed based on the equipment information (31) of the mobile telephone (P) and makes a communication setting for the communication control circuit (35) according to setting data of the communication protocol which is determined to be preferentially performed.