| 摘要 |
<p>PURPOSE:To obtain a highly accurate clock with a small quantity of the skew by supplying only an original oscillation waveform signal with a starting function to respective units, responding to the reception of the signal in respective units and forming a clock periodic to the original oscillation waveform signal. CONSTITUTION:When the power source of an electronic equipment is inputted, a resetting signal is generated, a transmission control circuit 202, a clock forming circuit 206, etc., in respective units 204 are reset, an original oscillator 201 starts an oscillation action and continuously generates an original oscillation waveform signal (f). Thereafter, when a starting signal ST is generated, an RS301 in the circuit 202 is set, and therefore, a DFF302 is set by the trailing edge of a signal fd immediately after it, a next step DFF303 is set by the leading edge of the signal fd immediately after it, and the transmission of an original oscillation waveform signal fst with a starting function is started. At the clock forming circuit 206 in respective units 204, a shifting action synchronized with the signal fst is started, and the clock synchronized with the signal fst is formed.</p> |
