Digital Electronics - Shift Registers

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Exercise : Shift Registers - General Questions
1.
On the fifth clock pulse, a 4-bit Johnson sequence is Q0 = 0, Q1 = 1, Q2 = 1, and Q3 = 1. On the sixth clock pulse, the sequence is ________.
Q0 = 1, Q1 = 0, Q2 = 0, Q3 = 0
Q0 = 1, Q1 = 1, Q2 = 1, Q3 = 0
Q0 = 0, Q1 = 0, Q2 = 1, Q3 = 1
Q0 = 0, Q1 = 0, Q2 = 0, Q3 = 1
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
The bit sequence 0010 is serially entered (right-most bit first) into a 4-bit parallel out shift register that is initially clear. What are the Q outputs after two clock pulses?
0000
0010
1000
1111
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
What is a shift register that will accept a parallel input, or a bidirectional serial load and internal shift features, called?
tristate
end around
universal
conversion
Answer: Option
Explanation:
No answer description is available. Let's discuss.

4.
On the third clock pulse, a 4-bit Johnson sequence is Q0 = 1, Q1 = 1, Q2 = 1, and Q3 = 0. On the fourth clock pulse, the sequence is ________.
Q0 = 1, Q1 = 1, Q2 = 1, Q3 = 1
Q0 = 1, Q1 = 1, Q2 = 0, Q3 = 0
Q0 = 1, Q1 = 0, Q2 = 0, Q3 = 0
Q0 = 0, Q1 = 0, Q2 = 0, Q3 = 0
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
A bidirectional 4-bit shift register is storing the nibble 1101. Its input is HIGH. The nibble 1011 is waiting to be entered on the serial data-input line. After three clock pulses, the shift register is storing ________.
1101
0111
0001
1110
Answer: Option
Explanation:
No answer description is available. Let's discuss.