DATA TRANSFER CONTROL DEVICE, DATA TRANSFER SYSTEM, AND DATA PROCESSING SYSTEM

PROBLEM TO BE SOLVED: To provide a data transfer control device, a data transfer system, and a data processing system capable of efficiently using storage resources. SOLUTION: The data transfer control device includes: a plurality of intermediate buffers 32 for temporarily store data provided so as to correspond to respective image processing units (first to fourth image processing units 11 to 14) for processing data transferred thereto in a sequence that the data are transferred; a plurality of DMA control units 33 for reading data in a predetermined sequence from storage areas of a single storage device 50 having a plurality of mutually non-overlapping storage areas which are set so as to correspond to the respective image processing units, and writing the data into the intermediate buffers 32 provided so as to correspond to the respective image processing units; a plurality of image processing unit interfaces 31 which are provided so as to correspond to the respective image processing units for reading and transferring to the respective corresponding image processing units the data written in the intermediate buffers 32 corresponding to the image processing units in response to respective requests from the respective corresponding image processing units; and an exclusive control unit 40 for performing exclusive control by imparting the respective DMA control units 33 with respective rights to exclusively read data from the storage device 50. COPYRIGHT: (C)2011,JPO&INPIT