| 摘要 |
PURPOSE: A circuit for controlling an access of buffers is provided to simplify circuit configuration without using a delay circuit CONSTITUTION: The buffer access control circuit(1) comprises a first latch circuit(10) for latching a data inputted to an input terminal using a lower buffer access signal as a latch signal; a second latch circuit(11) for latching same data with the input data of the first latch circuit(10) inputted to the input terminal using an upper buffer access signal as a latch signal; detect circuits(12, 13) for detecting whether the latch data of two latch circuits(10, 11) are same each other; and a converting circuit(14) for converting the level of data when a data indicated a high level or a low level is input to the input terminals of two latch circuits(10, 11) and detect the latch data as same.
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