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Shift Registers
To operate correctly, starting a ring shift counter requires:
clearing all the flip-flops
presetting one flip-flop and clearing all others
clearing one flip-flop and presetting all others
presetting all the flip-flops
Correct Answer:
presetting one flip-flop and clearing all others
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Shift Registers
The group of bits 11001 is serially shifted (right-most bit first) into a 5-bit parallel output shift register with an initial state 01110. After three clock pulses, the register contains ________.
The bit sequence 10011100 is serially entered (right-most bit first) into an 8-bit parallel out shift register that is initially clear. What are the Q outputs after four clock pulses?
Assume that a 4-bit serial in/serial out shift register is initially clear. We wish to store the nibble 1100. What will be the 4-bit pattern after the second clock pulse? (Right-most bit first.)
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 ________.
The group of bits 10110111 is serially shifted (right-most bit first) into an 8-bit parallel output shift register with an initial state 11110000. After two clock pulses, the register contains ________.
What is meant by parallel load of a shift register?
With a 200 kHz clock frequency, eight bits can be serially entered into a shift register in ________.
What does the output enable do on the 74395A chip?
If an 8-bit ring counter has an initial state 10111110, what is the state after the fourth clock pulse?
What is a transceiver circuit?
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