| 摘要 |
PROBLEM TO BE SOLVED: To dynamically set a memory band restriction setting value of a bus master.SOLUTION: An image processor includes: a band restriction holding unit 38 for calculating a memory band restriction setting value of each bus master corresponding to a combination of operation states of each bus master obtained as a result of monitoring operation states of a plurality of bus masters on the basis of a band restriction table 36 for storing the memory band restriction setting value of each bus master in each combination for the plurality of bus masters of an operation status showing an operating state of each bus master; a bus arbitration unit 30 for restricting data transfer of a bus master connected to a plurality of bus masters and memories and having a memory band utilization rate obtained as a result of monitoring operation states of the plurality of bus masters which reaches the memory band restriction setting value; and control means for dynamically setting the calculated memory band restriction setting value of each bus maser in the bus arbitration unit. |
