| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a timing adjustment circuit for adequately adjusting the timing of a clock signal according to an environmental change. <P>SOLUTION: The timing adjustment circuit includes: an environmental sensor for detecting an environmental value; a clock delay circuit for delaying the clock signal which is supplied to a circuit to be supplied with a clock; and a control unit for sequentially setting a plurality of different delay amounts to the clock delay circuit when the change of the environmental value satisfies a predetermined condition, determining whether each of the delay amounts is adequate from the operating state of the circuit to be supplied with the clock in each delay amount, and determining an optimal delay amount to a current environmental value on a result of the adequateness determination to set it in the clock delay circuit. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
