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Semiconductor integrated circuit with low-power bus structure and system for composing low-power bus structure

  • US 6,175,886 B1
  • Filed: 08/28/1998
  • Issued: 01/16/2001
  • Est. Priority Date: 08/28/1997
  • Status: Expired due to Fees
First Claim
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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; and

    means 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.

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