![]() The input is given to the AND gate-1 of the flip-flop -1 as shown in the figure via serial input pin. Serial input for shift-right control enables the data transfer towards the right and all the serial input and output lines are connected to the shift-right mode.Hence, Universal shift registers can perform input/output operations with both serial and parallel loads.Ĥ-bit Universal shift register diagram is shown below. Shift right operation – stores the data and transfers the data by shifting towards right in the serial path.Shift left operation – stores the data and transfers the data shifting towards left in the serial path.Parallel load operation – stores the data in parallel as well as the data in parallel.Universal shift registers are capable of performing 3 operations as listed below. It is also known as a parallel-in-parallel-out shift register or shift register with the parallel load. Unidirectional shift registers and bidirectional shift registers are combined together to get the design of the universal shift register. It can be used to perform input/output operations in both serial and parallel modes. Definition: A register that can store the data and /shifts the data towards the right and left along with the parallel load capability is known as a universal shift register.
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