Source device, communication system, method of controlling source device, and method of controlling sink device

A communication system comprising:

• a low-speed data supply section configured to supply, as low-speed data, data generated in synchronization with a low clock signal out of a plurality of clock signals having different frequencies, the low clock signal having a frequency that is lower than a predetermined value;
• a high-speed data supply section configured to supply, as high-speed data, data generated in synchronization with a high clock signal out of the plurality of clock signals, the high clock signal having a frequency that is higher than the frequency of the low clock signal;
• a dividing section configured to divide the low-speed data into a predetermined number of pieces of data, the predetermined number being in accordance with a ratio of the frequency of the high clock signal with respect to the frequency of the low clock signal;
• and
• a data transmitting section configured to store the high-speed data and the divided pieces of low-speed data in data having a predetermined data size, and to transmit the stored high-speed data and divided pieces of low-speed data;
• a data receiving section configured to receive the transmitted data having the predetermined data size;
• and
• a restore section configured to restore the low-speed data before being divided from the divided pieces of low-speed data in the received data having the predetermined data size.

A method of controlling a source device, the method comprising:

• supplying, through a low-speed data supply section, as low-speed data, data generated in synchronization with a low clock signal out of a plurality of clock signals having different frequencies, the low clock signal having a frequency that is lower than a predetermined value;
• supplying, through a high-speed data supply section, as high-speed data, data generated in synchronization with a high clock signal out of the plurality of clock signals, the high clock signal having a frequency that is higher than the frequency of the low clock signal;
• dividing, through a dividing section. the low-speed data into a predetermined number of pieces of data, the predetermined number being in accordance with a ratio of the frequency of the high clock signal with respect to the frequency of the low clock signal;
• and
• storing, through a data transmitting section, the high-speed data and the divided pieces of low-speed data in data having a predetermined data size, and transmitting, through the data transmitting section, the stored high-speed data and divided pieces of low-speed data.