Importance

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Abstract

A computer bridge interconnects a plurality of computer buses. The computer bridge includes first and second bus interfaces structured for coupling to first and second computer buses, respectively. The computer bridge also includes a control switch having a request phase selector and a data phase selector connected to each of the first and second bus interfaces. The request phase selector selectively connects a second bus interface to the first bus interface during a request phase of a transaction. The data phase selector selectively connects the second bus interface to the first bus interface during a data phase of the transaction, thereby decoupling the data phase from the request phase. The switch may include dedicated connections between two pairs of computer buses so that data can be transmitted simultaneously between the two pairs of computer buses. As such, a transaction can be transmitted to or from any computer bus that is not currently transmitting or receiving a transaction without waiting for any internal bus of the computer bridge to become available.

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First Claim