SEMICONDUCTOR INTEGRATED CIRCUIT, ESPECIALLY MAINTAINING OPERATIONAL FREQUENCY UNIFORM REGARDLESS OF CONFIGURATION INFORMATION CHANGE DYNAMICALLY IN CONFIGURATION INFORMATION

摘要

PURPOSE: A semiconductor integrated circuit is provided to effectively utilize the arithmetic logic within the cell in a LSI semiconductor integrated circuit as well as change dynamically in configuration information. CONSTITUTION: A semiconductor integrated circuit includes an input switch(ISW), an output switch(OSW), a first data path and a second data path. The input switch is connected to the multiple data input nodes. The output switch is connected to the multiple data output nodes. The first data path contains a first data holding circuit and an arithmetic logic circuit between the first input switch and the first output switch. The second data path contains a second data holding circuit between the input switch and the output switch. And, the first data holding circuit stores the calculated result data from the arithmetic logic circuit and the second data holding circuit holds the data input from any of the multiple data input nodes.