A communication circuit comprises a first communication section having a first transmitting section and a first receiving section, a second communication section having a second transmitting section and a second receiving section, a communication control section controlling communication at the first communication section and the second communication section, receiving processing section performing receiving process based on received communication data, wherein the first communication section and the second communication section distinguishes predetermined communication data, and in case either the first communication section or the second communication section receives the predetermined communication data alternatively, the communication control section controls to input the communication data received by the communication sections receiving the predetermined communication data into the receiving processing section, and to input the communication data into other communication sections so as to input communic