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saturating n bit counter

Discussion in 'Electronic Basics' started by [email protected], Apr 17, 2007.

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  1. Guest

    i am confused with saturating n bit counter. Is it not simply a
    normal counter with following sequence ??

    111 ??

    if so what is the difference between normal counter and saturating
    counter ?

  2. I have never heard the term "saturating counter" in some 40 years of
    working in electronics.

    However, I might make a wild guess that a "staturating counter" is one
    which counts up to its maximum value, then stops, rather than "rolling
    over" to zero, and starting again.

    Where did you see this term? Can you give any more information that
    might clarify the meaning?

    Peter Bennett, VE7CEI
    peterbb4 (at)
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  3. Sjouke Burry

    Sjouke Burry Guest

    The list shows a nice graycode start.
    Graycode changes one bit at a time, so to get
    a normal count, you need a translation table.
    The name should probably be graycode counter.
    Has often been used to minimize transmission
  4. John Fields

    John Fields Guest

  5. Guest

    well i encountered this countere while I was reading computer
    architecture's branch prediction strategy, even wiki mentions this

    that is what makes me confused ...what is so much special about this
    counter ??
  6. Rich Grise

    Rich Grise Guest

    It sounds, from context, that it's just an up-down counter that doesn't
    wrap. i.e., given "up" counts it counts to (say) 3, then won't count
    any more, but the next "down" count decrements it to 2, and so on, down
    to zero, where it won't decrement any more, but can still count up again.

    Hope This Helps!
  7. Perhaps you are referring to a counter that is saturated by the incoming
    signals. An example is a scintillometer used to count gamma rays. If the
    count rate reaches a point at which the average time between counts equals
    the time it takes for the processor to count the signals the device is
    saturated. At hight count rates which fall below saturation level it is
    necessary to apply a mathematical correction to make up for the signals that
    are lost through overlap with a previous signal. I have forgotton the
    equation, but it is quite a simple one.

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