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Point-to-point bus bridging without a bridge controller

  • US 20050237327A1
  • Filed: 04/23/2004
  • Published: 10/27/2005
  • Est. Priority Date: 04/23/2004
  • Status: Active Grant
First Claim
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1. A computer system comprising:

  • a central processing unit;

    a computer core logic controller adapted to coordinate communications over a data communications bus;

    an integrated graphics subsystem adapted to generate display data in response to a set of rendering information;

    a graphics connector adapted to communicate with an auxiliary graphics subsystem;

    a data communications bus connected with the computer core logic controller and including a first bus connection adapted to communicate a set of rendering information from the computer core logic controller to the integrated graphics subsystem, a second bus connection adapted to communicate information between the integrated graphic graphics subsystem and the graphics connector, and a third bus connection adapted to communicate information from the graphics connector to the computer core logic controller;

    wherein the integrated graphics subsystem includes a normal operation mode adapted to communicate information to the computer core logic via the second bus connection and the third bus connection, and also includes a data forwarding mode adapted to communicate a set of rendering information received via the first bus connection with an auxiliary graphics subsystem via the second bus connection.

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