INFORMATION PROCESSING DEVICE; AND DATA TRANSFER DEVICE AND CONTROL METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To achieve power saving of a data transfer device without requiring special processing for avoiding loss and freezing of transfer data.SOLUTION: A bus system 30 includes a plurality of bus nodules 100 that perform data transfer between master modules 300 and slave modules 400. A power control module 25 controls the transition of each of the bus modules 100 to a power-saving mode, on the basis of communication with the plurality of bus modules 100. The power control module 25 includes a plurality of control modules 250 that respectively correspond to the plurality of bus modules 100 and perform communication with the respectively corresponding bus modules by a power control signal.