| 摘要 |
PROBLEM TO BE SOLVED: To perform, in an arithmetic processing unit for processing data input from a plurality of transmission sources, appropriate adjustment of a bus use rate of each transmission source while suppressing increase in circuit scale.SOLUTION: An arithmetic processing unit includes a plurality of selection circuits 3 connected in series. At least one selection circuit 3 includes: a selection unit 34b for selecting a first input unit 33 from two or more input units 33, each of which receives, as input, data and identification information on a transmission source of the data from the transmission source or a selection circuit 3 at a prior stage, on the basis of the two or more pieces of identification information and priority information showing priority of each of a selection circuit 3 on the upstream side of the own selection circuit 3 and a plurality of transmission sources connected to the own selection circuit 3; an updating unit 34b for updating priority on a first transmission source shown by first identification information input to the first input unit 33, of the priority information; and a transfer unit 35a for transferring data input from the first input unit 33 and the first identification information to a transfer destination.SELECTED DRAWING: Figure 10 |
