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Discussion :: Microprocessors

  1. In 8255, ______number of modes of I/O mode of operation we have, which of the following features comes under which mode
    (i) A 5 bit control port is available.
    (ii) 3 I/O lines are available at Port C
    2. A.
    3, Mode2
    B.
    2, Mode2
    C.
    4, Mode3
    D.
    3, Mode2

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    Workspace

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    Answer : Option B

    Explanation :

    2, Mode2

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