| 摘要 |
The cycle selection circuit according to the present invention has a transfer gate circuit provided with a transfer gate which let an input signal pass through, and a transfer gate which let a standard signal having a standard cycle value pass through, a transfer gate selection circuit which selects one transfer gate from among the transfer gates provided in the transfer gate circuit and outputs the signal that passes through the selected transfer gate as a selected signal, and a forced control signal generating circuit provided in the transfer gate circuit which forcibly selects the transfer gate that let the standard signal pass through and designates the standard signal as a selected signal.
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