Functional module card for transferring digital broadcasting signal using a clock generated based on a synchronous signal extracted from a received data signal

A host apparatus comprising:

• a communication section for communicating with a functional module card via a plurality of connection lines;
• and
• a broadcasting signal output section for inputting a data signal of a digital broadcasting signal and a clock for transferring the data signal, which are transmitted from the functional module card, for performing a predetermined processing on the data signal and the clock, and for outputting a resultant data signal and a resultant clock,
• wherein said communication section includes:
• a first data transfer mode for transferring data via a data bus of connection lines selected from the plurality of connection lines;
• and
• a second data transfer mode for inputting the data signal and the clock for transferring the data signal, respectively, to said host apparatus via a first connection line and via at least one additional connection line other than the first connection line, the first connection line and the at least one additional connection line being selected from the connection lines which transfer the data in the first data transfer mode,
• wherein the clock for transferring the data signal is generated based on a synchronous signal extracted from the data signal, and
• wherein, in the second data transfer mode, said communication section inputs the data signal synchronously with the clock for transferring the data signal.

A method for controlling a functional module card comprising:

• communicating with a host apparatus via a plurality of connection lines;
• receiving step of receiving a digital broadcasting signal,
• generating a data signal of the digital broadcasting signal;
• and
• generating a clock for transferring the data signal based on a synchronous signal extracted from the data signal,
• wherein said communicating comprises:
• a first data transfer mode for transferring data via a data bus of connection lines selected from the plurality of connection lines;
• and
• a second data transfer mode for transmitting the data signal and the clock for transferring the data signal, respectively, to the host apparatus via a first connection line and via at least one additional connection line other than the first connection line, the connection line and the at least one additional connection line being selected from the connection lines which transfer the data in the first data transfer mode, and
• wherein, in the second data transfer mode, said communicating further comprises transferring the data signal synchronously with the clock for transferring the data signal.

A method for controlling a host apparatus comprising

• communicating with a functional module card via a plurality of connection lines;
• inputting a data signal of a digital broadcasting signal and a clock for transferring the data signal, which are transmitted from the functional module card;
• performing a predetermined processing on the data signal and the clock;
• and
• outputting a resultant data signal and a resultant clock,
• wherein said communicating comprises:
• a first data transfer mode for transferring data via a data bus of connection lines selected from the plurality of connection lines;
• and
• a second data transfer mode for inputting the data signal and the clock for transferring the data signal, respectively, to the host apparatus via a first connection line and via at least one additional connection line other than the first connection line, the first connection line and the at least one additional connection line being selected from the connection lines which transfer the data in the first data transfer mode,
• wherein the clock for transferring the data signal is generated based on a synchronous signal extracted from the data signal, and
• wherein, in the second data transfer mode, said communicating further comprises inputting the data signal synchronously with the clock for transferring the data signal.