| 摘要 |
In the conventional bus control system, the interconnect section and the bridge section have the arbitration function. Meanwhile, the interconnect section and the bridge section were designed by different designers. Accordingly, a large number of man-hours are needed not only for designing the bridge section but also for inspecting the bridge section. To solve this problem, provided is a system comprising a plurality of bus masters coupled to a high speed bus and outputting first control signals respectively via the high speed bus; a bus slave coupled to a low speed bus and receiving a second control signal via the low speed bus; an interconnect section receiving the first control signals via the high speed bus, selecting one of the first control signals, and converting the selected one of the first signals into a third control signal relative to the second control signal; and a bridge section coupled to the low speed bus, converting the third control signal into the second control signal, and outputting the second control signal to the low speed bus. With this configuration, the bus arbitrations can be collectively controlled in the interconnect section alone. In addition, a circuit size can be reduced.
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