| 摘要 |
PROBLEM TO BE SOLVED: To provide a data transfer control device which, when dividing data into a plurality of pieces of data and using descriptors to output them to transfer destinations, is capable of changing the transfer destinations of the divided pieces of data without generating another descriptors.SOLUTION: A first descriptor generator 33 generates first descriptors which are to be assigned to a plurality of divided pieces of data respectively and indicate respective transfer destinations of the divided pieces of data, to write the plurality of divided pieces of data into a DRAM 13. A first transfer destination change setting unit 37 sets first setting for changing a transfer destination, to first descriptors assigned to divided pieces of data of which the destinations should be changed. A bus control unit 23 determines whether the first setting is set to the first descriptor assigned to a divided piece of data or not before output of the divided piece of data from a master 11 to a bus 21 and, if the first setting is determined to be set to the first descriptor, performs such control that the divided piece of data outputted from the master 11 to the bus 21 is transferred to an SRAM 15. |
