Question 4 According to class materials if the signal DIN is

Question 4. According to class materials, if the signal D_IN is connected to voltage source or a logic \"1\" value, what would be the value of the shift register (Q_AQ_BQ_CQ_DQ_EQ_FQ_GQ_H)and the D_OUT, respectively, after it is pulsed by exactly 4 clock cycles?

       (a) 00000000, 0

       (b) 00000000, 1

       (c) 11111111, 0

       (d) 11111111, 1

       (e) None of (a) through (d) is the correct answer.

Solution

Ans. e) None of the above, as

In the first clock cycle

Qa=1 rest all will be zero,

10000000

In the second

Qb=1 rest all will be zero

01000000

In the third

Qc=1 and rest will be zero

00100000

In the fourth

Qd=1 and rest will be zero

00010000