초록 ▼

A bus (9) is structured to reduce Dower consumption. The bus (9) is used to transfer data among functional blocks (1, 3, 5, 7) formed on an LSI chip. The bus is divided into subsections (9a, 9b, 9c). A pair of the functional blocks (1, 7) whose frequency of mutual data transfer is high is connected

A bus (9) is structured to reduce Dower consumption. The bus (9) is used to transfer data among functional blocks (1, 3, 5, 7) formed on an LSI chip. The bus is divided into subsections (9a, 9b, 9c). A pair of the functional blocks (1, 7) whose frequency of mutual data transfer is high is connected to the same subsection (9b). Connectors (29, 31) are inserted between the subsections so that the subsections may optionally electrically be connected to and disconnected from each other. When data is transferred between the functional blocks whose frequency of mutual data transfer is high, the subsection to which the functional blocks in question are connected is electrically disconnected by the connectors from the other subsections.

대표청구항 ▼

[ What is claimed is:] [1.] A semiconductor integrated circuit comprising:a bus divided into subsections;functional blocks for transferring data among themselves through the bus;connection circuit for connecting adjacent two of the subsections to each other in response to a control signal that indic

[ What is claimed is:] [1.] A semiconductor integrated circuit comprising:a bus divided into subsections;functional blocks for transferring data among themselves through the bus;connection circuit for connecting adjacent two of the subsections to each other in response to a control signal that indicates that data is to be transferred between the two subsections,wherein said connection circuit includes a pair of buffer circuits for switchingly transferring a signal from one of the adjacent subsections to the other adjacent subsection or vice versa; andmeans for grouping the functional blocks on the basis of the frequencies of mutual data transfer performed among said functional blocks such that a group of functional blocks whose frequency of mutual data transfer is high are connected to one of the subsections.