| 摘要 |
PURPOSE:To increase the degree of freedom in logic design by a method wherein all of input and output terminals of a basic cell are made as the external terminals of a macro cell. CONSTITUTION:The final step latch part is composed of basic cells 1 and 2, and all of the input and output terminals are outputted as external terminals PR, M1, XQ, Q, M2, and CR. Since independent basic cells have been provided in a macro cell, connection of one input terminal M1 of the basic cell 1 to one of the input terminals A1, A2, and A3 of an independent basic gate 7 enables the monitor output terminal AX of the terminal M1 to be provided without exerting any effect on macro cell performance.
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