| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a semiconductor integrated circuit capable of easily performing the timing analysis of an asynchronous boundary. <P>SOLUTION: A semiconductor integrated circuit comprises: a first clock domain A driven by a first frequency; a second clock domain B that is adjacent to the first clock domain A and is driven by a second frequency different from the first frequency; signal lines 20 and 30 provided between the first clock domain A and the second clock domain B; first DF/Fs 21 to 24 and second DF/Fs 31 to 34 that are connected to the first signal line 20 and are provided in the first clock domain A and the second clock domain B, respectively; and a first multiplexer 27 and a second multiplexer 37 that are provided corresponding to the first DF/Fs 21 to 24 and the second DF/Fs 31 to 34, respectively, select one of the first frequency and the second frequency, and output the selected frequency to the first DF/Fs and the second DF/Fs. <P>COPYRIGHT: (C)2012,JPO&INPIT |
