Bidirectional Shift Register Diagram. The block diagram of 3 bit sipo shift register is shown in the following figure. Serial in serial out shift registers are shift registers that streams in data serially one bit per clock cycle and streams out data too in the same way one after the other.
Figure 1 shows an n bit bidirectional shift register with serial data loading and retrieval capacity. Serial in serial out shift registers. The following image shows an n bit bidirectional shift register with serial data loading and retrieval capacity.
Below is the diagram of 4 bit bidirectional shift register where dr is the serial right shift data input dl is the left shift data input and m is the mode select input.
If a binary number is shifted left by one position then it is equivalent to multiplying the original number by 2. Bidirectional shift registers are the registers which are capable of shifting the data either right or left depending on the mode selected. Block diagram bidirectional shift register. Initially all the flip flops in the register are reset by driving their clear pins high.
