| 摘要 |
<p>PURPOSE:To eliminate the needs for considering the worst value of the delay time of a circuit element in setting a machine cycle and to speed up the machine cycle at the time of a normal voltage by detecting the drop of an input voltage, inserting a dummy state and prolonging a machine cycle time. CONSTITUTION:When the output voltage of a power unit 1 is supplied to a voltage detection circuit 2, and a supplied voltage comes below a prescribed value, the voltage detection circuit 2 outputs an alarm signal to a stage generation circuit 3, and instructs it of the insertion of the dummy stage. Since the machine cycle time is prolonged by one clock longer than a normal time when the voltage drops, it comes to be unnecessary to expect the worst value of the delay time of the element accompanied by the drop of the voltage at the time of setting the machine cycle time, whereby the machine cycle time can be speeded up.</p> |
