Multiplexer address control..


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    Default Multiplexer address control..

    I have a HTC4067 16x1 multiplexer, it's controlled by four lines S0, S1, S2, S3
    I have these all connected to Port B pins 4,5,6,7 respectively on my pic. This could be reversed to 7,6,5,4 if that helps.
    I'm after ideas on how to step through the input options 0-15 as per the truth table below as efficiently as possible.

    i.e. select input 0, then 1, then 2 etc etc in sequence..

    Increment a byte from 0 to 15 and mask off the 4 high bits?

    Ideally I don't want to effect the output/status etc on the PortB 0,1,2,3 during this operation..

    Name:  HTC4067TruthTable.jpg
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    Last edited by retepsnikrep; - 19th July 2018 at 09:38.

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