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Applications of Shift Register | Ring Counter and Johnson Counter, PRBS Generator

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Applications of Shift Register | Ring Counter and Johnson Counter, PRBS Generator

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Solution

Shift registers are used in a variety of applications, including data storage, data movement, and data manipulation. Here are some specific applications:

  1. Ring Counter: A ring counter is a type of shift register where the output from the last stage is fed back to the input of the first stage. It is called a ring counter because it circulates a pattern of bits that resemble a ring. Ring counters are used in applications where a specific pattern of bits is required to be generated sequentially.

  2. Johnson Counter: A Johnson counter is a modified ring counter where the inverted output from the last stage is fed back to the input of the first stage. This counter generates a special pattern of bits and is used in applications where a specific sequence of bit pattern is required.

  3. PRBS Generator: A Pseudo Random Binary Sequence (PRBS) generator is a shift register with feedback that generates a sequence of binary numbers that appears to be random. PRBS generators are used in a variety of applications including digital communications for channel sounding, encryption for secure communications, and in testing and validating digital systems and networks.

In all these applications, the shift register is used to generate, store, and manipulate a sequence of bits for specific purposes.

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