专利汇可以提供Logic circuit composing device专利检索,专利查询,专利分析的服务。并且PURPOSE: To obtain an automatic composing device for a logic circuit which are easily tested by adding a circuit function dedicated to the test separately from the function of a desired logic circuit at the time of composition.
CONSTITUTION: Plural partial circuits including FFs are put together by a composition engine. The plural FFs used for the partial circuits are connected in series to generate a skin-path and scan clock system to be put in shift register operation. Then when the partial circuits are put together, contravention to a test facilitation rule is checked. If there is the contravention to the rule, the composition of partial circuits is redone by another composing method. When not, an advance to the composition of a next partial circuit is made and thus all the partial circuits are put together. Consequently, a circuit function dedicated to test facilitation is generated simultaneously during the automatic logic circuit composition. Thus, the automatic composing device for the logic circuit which is easily tested is obtained.
COPYRIGHT: (C)1988,JPO&Japio,下面是Logic circuit composing device专利的具体信息内容。
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