| 摘要 |
PROBLEM TO BE SOLVED: To suppress clock skewing of a semiconductor integrated circuit. SOLUTION: Marco block information is recorded computer-readably in a data recording medium. The marco block information is the information for materializing a marco block with a semiconductor integrated circuit(IC). A marco block (101) has a plurality of first clock terminals (Cin1-Cin4) to be input with signals from outside for the same clock system. Compared with the case where there is only one clock input terminal for one system, a smaller number of clock buffer stages is required in the marco block. As a result, the number of clock buffer stages from a clock generating circuit to a sequence circuit in the semiconductor IC is reduced, and thereby there is less effects due to errors caused by the variations in processes, etc., and clock skewing of the semiconductor IC can be suppressed.
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