| 摘要 |
PROBLEM TO BE SOLVED: To provide a data processor capable of preventing reduction of processing performance of the whole system using a plurality of buses. SOLUTION: A traffic monitoring unit 3 monitors a traffic state of each the bus, and changes over a transfer bus for data. When a traffic amount of a bus 1A is less than a value of a bus 1B when an initiator M_A1 accesses a target T_A1, the initiator M_A1 and the bus 1A are connected, the target T_A1 and the bus 1A are connected, and the initiator M_A1 is made to access the target T_A1 via the bus 1A. When the traffic amount of the bus 1A exceeds a threshold value and when a traffic amount of the bus 1B is not more than the threshold value, the initiator M_A1 and the bus 1B are connected, the target T_A1 and the bus 1B are connected, and the initiator M_A1 is made to access the target T_A1 via the bus 1B. COPYRIGHT: (C)2007,JPO&INPIT
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