shift register made easy 6

Question

Answer 1

4  ----- SR1 ------------- 4 --------SR2--------------1---------SR3----------3

hence, total 12 clock pulse needed..

siso needs n cp for i/p and n-1 cp for o/p

sipo needs n cp for i/p and 0 cp for o/p

piso needs 1 cp for i/p and n-1 cp for o/p

Answer 2

For all the FF we required 4  clocks  hence 4 x 3=12 clock cycle