Matsushita Electric Industrial Co., Ltd.

Tosihiro Moriiwa

Masatoshi Matsuo

Yasuo Kohashi

Hitoshi Fujimoto

Kenichi Ishida

In the case of using a database storing therein data on a plurality of circuits which are different in parameters such as circuit scale, memory capacity, number of pins, and operating frequency, the respective parameters of the circuits are analyzed automatically and a semiconductor integrated circuit device is designed automatically in accordance with the result of the analysis such that specifications required thereof are satisfied. For processor circuits, a micro-code and the like are analyzed automatically such that the processor circuits are improved or integrated. In the case of using block function IPs containing operations and circuit elements, a database storing therein IPs in a hierarchical configuration is used and a connecting portion between the internal functions of the IPs is withdrawn to the outside of the IPs, whereby a new IP or system is constructed.

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Fukuoka, Japan

Tosihiro Moriiwa