| 摘要 |
<p>PURPOSE:To provide an electronic equipment which is capable of surely preventing the occurrence of radiation noise or power source noise caused by a clock signal generating in a generation circuit only when the clock signal is unnecessary. CONSTITUTION:One of the input terminal of an AND gate AG is connected with the clock signal output terminal p2 of an oscillation circuit 20a, the other input terminal is connected with the output port PI of a CPU 13 and an output terminal is connected with the clock signal input terminal p3 of a video signal generation circuit 20b. When 'H' level signal is outputted from the port P1, and AND gate AG is closed and the clock signal from the oscillation circuit 20a is supplied to the video signal generation circuit 20b. When 'L' level signal is outputted, the gate AG is opened and the clock signal from the oscillation circuit 20a is not supplied to the video signal generation circuit 20b.</p> |
