Method, apparatus and program for designing circuits

Computer-aided design and analysis of circuits and semiconductor – Integrated circuit design processing – Physical design processing

Reexamination Certificate

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Details

C716S119000, C716S126000, C716S134000

Reexamination Certificate

active

07962875

ABSTRACT:
A circuit designing method for a semiconductor integrated circuit, the circuit having a clock control circuit and leaves to which clock signals are propagated through the clock control circuit, has detecting a clock signal producing point where a clock signal is to be produced and an operational mode setting point where an operational mode setting signal for setting an operational mode is to be imparted, using a netlist and a cell library, setting a clock signal and a name of the clock signal at the clock signal producing point, setting an operational mode setting signal suitable for a desired operational mode at the operational mode setting point, propagating the clock signal and the operational mode setting signal, and extracting signals being propagated to the leaves.

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