Information-processing apparatus, information-processing method, and program

An information-processing apparatus comprising:

• a first line included in a predetermined interface and used for transmitting an interrupt signal to a second apparatus connected by using the interface when data is received from a first apparatus;
• a second line included in the interface and used for receiving a clock signal from the second apparatus;
• and
• a third line included in the interface and used for transmitting and receiving data between the information-processing apparatus and the second apparatus.

A recording medium storing a computer readable program configured to cause an information-processing apparatus to execute processing, the information-processing apparatus performing wireless communication with a first apparatus and wire communication with a second apparatus, the computer readable program comprising the steps of:

• transmitting an interrupt signal to the second apparatus by using the wire communication when data is received from the first apparatus;
• receiving, by using the wire communication, a clock signal from the second apparatus which receives the interrupt signal;
• and
• transmitting and receiving, by using the wire communication, data between the information-processing apparatus and the second apparatus.

An information-processing apparatus comprising:

• a first line included in a predetermined interface and used for receiving an interrupt signal from a second apparatus connected by using the interface when the second apparatus receives data from a first apparatus;
• a second line included in the interface and used for transmitting a clock signal to the second apparatus;
• and
• a third line included in the interface and used for transmitting and receiving data between the information-processing apparatus and the second apparatus.

A recording medium storing a computer readable program configured to cause an information-processing apparatus to execute processing, the information-processing apparatus performing wireless communication with a first apparatus and wire communication with a second apparatus, the computer readable program comprising the steps of:

• receiving an interrupt signal from the second apparatus by using the wire communication when the second apparatus receives data from the first apparatus;
• transmitting, by using the wire communication, a clock signal to the second apparatus when the interrupt signal is received;
• and
• transmitting and receiving, by using the wire communication, data between the information-processing apparatus and the second apparatus.

An information-processing apparatus comprising:

• a communication unit configured to communicate with a reader/writer;
• a module configured to control the communication unit;
• a processing unit configured to transmit and receive data to and from the module, respectively;
• an interrupt-signal output unit configured to output an interrupt signal from the module to the processing unit when the communication unit receives data from the reader/writer;
• a clock-signal output unit configured to output a clock signal from the processing unit to the module when the interrupt signal is received;
• a data output unit configured to output data, in synchronization with the clock signal, from the module to the processing unit or from the processing unit to the module;
• and
• a switching-signal output unit through which the processing unit outputs a switching signal used for switching the direction of data transmission and reception;
• wherein the module outputs the interrupt signal, and transmits data-length data when the clock signal is received, the data-length data indicating a data length of data to be transmitted to the processing unit;
• and
• the processing unit counts the data length of data, the data being transmitted from the module by the data output unit and received, after the data-length data indicating the data length is received, and determines the termination of data output from the module when the count value is equal to or greater than the data length indicated by the data-length data.