| 摘要 |
<p>PURPOSE:To obtain a system for a mounted CPU by providing a signal generation circuit processing the different kind of clocks between a local bus for which the mounted CPU is connected and a system bus for which I/O equipment, etc., is connected. CONSTITUTION:Between local buses 10A and 10B for which a mounted CPU 11 is connected and a system bus 10C for which the I/O device, etc., is connected, a signal generation circuit 30 for different kind of CPU clock outputting a signal on a local bus synchronously with the clock timing of the mounted CPU for each CPU is provided. In the control of signal generation circuits 30 for different kind of CPU clock provided on a system control gate array (GA) 15, the bus signal control based on the clock timing of the mounted CPU 11 is performed, and the program processing is executed in the regular clock timing of the mounted CPU 11. Therefore, the system especially for the mounted CPU can be easily obtained only by replacing the mounted CPU.</p> |
