A 4-bit shift register circuit configured for right-shift operation, i.e. Dᵢₙ → A, A → B, B → C, C → D, is shown. If the present state of the shift re - General NAT PYQs Based test 21: Digital Electronics | ExamTest.live

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1 mark

A 4-bit shift register circuit configured for right-shift operation, i.e. Dᵢₙ \to A, A \to B, B \to C, C \to D, is shown. If the present state of the shift register is ABCD = 1101, the number of clock cycles required to reach the state ABCD = 1111 is ________.

Correct Answer

10-10

Solution & Step-by-step Explanation

Input to A is Exor of Previous value of A and D New Input to B , C, D are previous values of A, B, C respectively. Total clock cycles required is 10

Try it yourself before checking the explanation above.

A 4-bit shift register circuit configured for right-shift operation, i.e. Dᵢₙ \to A, A \to B, B \to C, C \to D, is shown. If the present state of the shift register is ABCD = 1101, the number of clock cycles required to reach the state ABCD = 1111 is ________.