about synchronous counter with parallel load...T.T

Discussion in 'Homework Help' started by Fireball-and-fireball, May 27, 2015.

  1. Fireball-and-fireball

    Thread Starter New Member

    May 27, 2015
    2
    0
    Hello :) I'm Korean student. I visited this site because I can't solve my homework.

    This is synchronous counter with parallel.
    [​IMG]
    My homework is changing this synchronous counter counter to upgrade version....
    The homework counter works that. (The clue/hint is 'Universal Shift Register')
    Load / Count
    0 0 no change
    0 1 up counter
    1 0 set counter value
    1 1 down counter

    It's so hard to me... But this is my final exam question.
    Although I can't speak English well, I think that you can understand my question.

    plz~~~ help me!!
     
  2. Papabravo

    Expert

    Feb 24, 2006
    10,136
    1,786
    So how exactly does a universal shift register implement four different functions?
    Hint, the one word answer begins with the letter 'M'
     
  3. Fireball-and-fireball

    Thread Starter New Member

    May 27, 2015
    2
    0
    (The clue/hint is 'Universal Shift Register')
    [​IMG]
    It works that
    S1, S0 -> 0, 0 : No change
    S1, So -> 0, 1 : Shigt right
    S1, S0 -> 1, 0 : Shift left
    S1, So -> 1, 1 : Parallel load
     
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