DATA COMMUNICATION METHOD

摘要

PROBLEM TO BE SOLVED: To improve efficiency in the use of a bus.

SOLUTION: The data communication method is provided with first processing (13 and 14) for discriminating whether a bandwidth is changed in isochronous transfer of a packet communication or not, second processing (15) for requesting a change in the bandwidth in the isochronous transfer based upon the result in the first processing and third processing for changing the bandwidth in the isochronous transfer based upon the change request of the bandwidth in the second processing and when a transfer data bandwidth in the isochronous transfer of the packet communication is fluctuated, the fluctuation is discriminated to request the change in the data transfer bandwidth in the isochronous transfer. Then, a bus schedule is changed to improve efficiency in the use of the bus.

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