An electronic device representing a host device of a digital broadcasting reception system, said electronic device comprising: a synthesized stream creating unit configured to synthesize transport stream packets of plural received transport streams to create a synthesized stream; a stream transmitting unit configured to transmit the created synthesized stream to a Conditional Access Module, CAM, module via a common interface; a processing information retaining unit (171a-171f) configured to retain processing information for a certain period being at least time corresponding to a maximum delay time from transmission of the created synthesized stream to reception of a descrambled synthesized stream from the CAM module, the processing information being output at transmission timing of the respective transport stream packets of the synthesized stream, and used for processing the respective transport stream packets; a count information adding unit configured to provide count information by bringing a count information adding area provided in each of the transport stream packets into a state to which a count value is added as local continuity counter for each of the transport stream packets of the synthesized stream transmitted to the CAM module via the common interface; a stream receiving unit configured to receive a descrambled synthesized stream from the CAM module via the common interface obtained by the CAM module by descrambling the transmitted synthesized stream; and a processing unit configured to process the respective transport stream packets of the received descrambled synthesized stream based on the processing information corresponding to the respective transport stream packets and sequentially output from the processing information retaining unit, wherein the count information provides an indication for the CAM module as to whether or not the electronic device has the function to perform packet order switching and packet order switching is allowed or not at the CAM module, wherein a particular count value indicates that the electronic device does not have the function to perform packet order switching and packet order switching is not allowed at the CAM module and other count values indicate that the electronic device has the function to perform packet order switching and packet order switching is allowed at the CAM module. a synthesized stream creating unit configured to synthesize transport stream packets of plural received transport streams to create a synthesized stream; a stream transmitting unit configured to transmit the created synthesized stream to a Conditional Access Module, CAM, module via a common interface; a processing information retaining unit (171a-171f) configured to retain processing information for a certain period being at least time corresponding to a maximum delay time from transmission of the created synthesized stream to reception of a descrambled synthesized stream from the CAM module, the processing information being output at transmission timing of the respective transport stream packets of the synthesized stream, and used for processing the respective transport stream packets; a count information adding unit configured to provide count information by bringing a count information adding area provided in each of the transport stream packets into a state to which a count value is added as local continuity counter for each of the transport stream packets of the synthesized stream transmitted to the CAM module via the common interface; a stream receiving unit configured to receive a descrambled synthesized stream from the CAM module via the common interface obtained by the CAM module by descrambling the transmitted synthesized stream; and a processing unit configured to process the respective transport stream packets of the received descrambled synthesized stream based on the processing information corresponding to the respective transport stream packets and sequentially output from the processing information retaining unit, wherein the count information provides an indication for the CAM module as to whether or not the electronic device has the function to perform packet order switching and packet order switching is allowed or not at the CAM module, wherein a particular count value indicates that the electronic device does not have the function to perform packet order switching and packet order switching is not allowed at the CAM module and other count values indicate that the electronic device has the function to perform packet order switching and packet order switching is allowed at the CAM module.