A Magyar Biokémiai Egyesület tájékoztatója Quarterly Bulletin of the Hungarian Biochemical Society Szerkesztôbizottság

A shift register includes a plurality of pulse generation portions for generating a series of pulse signals in response to a level change of inputted clock signals, and a plurality of shift pulse generation units. The plurality of shift pulse generation units has a predetermined shift pulse generation unit, with the predetermined shift pulse generation unit having a status signal generation circuit for outputting a first status signal to common wiring to which both of an earlier shift pulse generation unit and a later shift pulse generation unit are connected, and a clock supply circuit for supplying a clock signal to the pulse generation portion which belongs to the predetermined shift pulse generation unit. In addition, there is a first period in which the clock supply circuit supplies the clock signal to the pulse generation portion which belongs to the predetermined shift pulse generation unit and a second period in which the clock signal is not supplied. During the first period in which the clock signal is supplied, a status signal is inputted from the earlier shift pulse generation unit, and a status signal is not inputted from the later shift pulse generation unit.