Shift Registers are constructed using latches or the Flip-Flops. These Sequential circuits are used to generate certain delays in the digital waveforms or signals. To send data bits into the microprocessors/microcontrollers and for reading data out these, shift registers are used. The 'n' number of stages in the register is proportional to the delay generated in the circuit by n times.  These registers play a vital role in long distance communication (like UART) between two processors to avoid … [Read more...]