| 摘要 |
PROBLEM TO BE SOLVED: To shorten the design period of a multi-powered semiconductor integrated circuit by automating the connection of a fixed input level signal terminal and a power line. SOLUTION: In the execution of placement and routing for a layout object circuit using circuit connection information 10 and power supply information 12, the following are executed: a first step (S11) of identifying a power terminal corresponding to a signal terminal designated at a fixed input level in the circuit connection information according to terminal correspondence information 14, a second step (S12) of identifying a supply voltage corresponding to the power terminal identified in the first step according to the power supply information, and a third step (S13) of routing a power line of the supply voltage identified in the second step to the fixed input level signal terminal to connect them. COPYRIGHT: (C)2006,JPO&NCIPI
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