関連ワード:  what is 4 bit shift register    what is 4 bit universal shift register    what is register explain 4 bit shift register    what does a 4 bit shift register do    what is the storage capacity of 4 bit shift register    4 bit shift register diagram    4 bit shift register using d flip flop    4 bit shift register truth table    4 bit shift register verilog code    4 bit shift register using jk flip flop