| 摘要 |
<P>PROBLEM TO BE SOLVED: To generate an aperiodic clock signal with an simpler configuration, to reduce radiant noise emitted from a signal line, and to reduce generation of crosstalk between transferred signals. <P>SOLUTION: By inputting a reference clock signal C to delay elements 5, 6, 7, three stepwise-delayed delay clock signals X, Y, Z are generated. By a pseudo-random number generation circuit 9 operating at a rising edge of a delay inversion clock signal U formed by inverting the delay clock signal Z, a delay clock selection signal S randomly selecting a delay clock signal from the delay clock signals X, Y, Z is generated. A delay clock signal selector 10 generates a selection delay clock signal D according to the delay clock selection signal S. Data are transferred according to the selection delay clock signal D. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
