| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly reliable shared memory controller utilizing high- speed multiplex transmission lines. SOLUTION: In an access from transmission lines IFs 3a and 3b, the occupying bus master of a buffer 4 is judged in a buffer control part 5 and exclusive control is performed. Also, after a bus IF 6 confirms the soundness of a reception frame, a memory IF 7 performs transfer to a memory 9.
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