| 摘要 |
<p>PURPOSE:To realize the interfacing of peripheral equipments operating by means of the clock signals of different periods by initializing a system clock signal by means of supplying a control signal to a control signal input terminal. CONSTITUTION:The control signal input terminal 110 to which the control signal controlling the operation of a system clock signal initialization part is supplied is provided. Namely, the system clock signal initialization part compulsorily sets the signal level of the system clock signal S1 which is transmitted till then to an L-level by the supply of the control signal CRES to the control signal input terminal 110, and resumes the transmission of the system clock signal S1 again in synchronizing with the direct signal level change of the clock signal CLK when the control signal CRES is supplied again. Thus, the system clock signal initialization part and the control signal input terminal 110 operate so that they can synchronize the system clock signal S1 and they can easily realize interfacing between the peripheral equipments operating by the clock signals of the different periods.</p> |
