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.

My homework is changing this synchronous counter counter to upgrade version....
The homework counter works that. (The clue/hint is 'Universal Shift Register')
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
10,340
1,850
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')

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