| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide electronic equipment which operates with more than one clock and improves reliability in transmission of data with more than one clock, and also to provide a circuit substrate therefor. <P>SOLUTION: Clock buses (short circuit 26 and long circuit 27) and a data bus 28 are provided between a first bridge circuit 12 and a main storage. A switching circuit 29 is also provided between the first bridge circuit 12 and the main storage 13. The switching circuit 29 selects either the short circuit 26 or the long circuit 27 in response to a clock frequency outputted from the first bridge circuit 12. By this selection of the circuit, the difference in velocity of clock signals is supplemented by delay in time due to the length in wiring of the clock buses, and time for setup is kept in a prescribed period. <P>COPYRIGHT: (C)2004,JPO</p> |
