| 摘要 |
A register circuit is disclosed which has input/output data lines a first register having a first flip-flop and a first transfer gate provided between the input/output terminals of the flip-flop and the input/output data lines and connect them in response to a first selection signal, a second register having a second flip-flop and a second transfer gate provided between the input/output terminals of the flip-flop and the input/output data lines and connect them in response to a second selection signal, and a copy control circuit having a first and a second transistors, connected in series between the input/output terminals of the second flip-flop and the power terminals, to which are supplied a stored data of the first flip-flop and a copy signal, respectively. <IMAGE> |
