Computer system having a common display memory and main memory

  • US 6,057,862 A
  • Filed: 07/01/1997
  • Issued: 05/02/2000
  • Est. Priority Date: 07/01/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A computer system comprising:

  • a common memory architecture including,a display memory,a main memory, anda plurality of memory subsystems, each memory subsystem coupled to one of a plurality of dedicated memory channels;

    a memory channel data switch and controller (DSC) unit coupled through said plurality of memory channels to each of said memory subsystems;

    an arbitration and control (A&

    C) unit for allocating access through said memory channel DSC unit to said memory subsystems;

    a central processing unit (CPU) subsystem controller unit for providing first signals through a first data bus and through an address and control bus to said memory channel DSC unit and to said A&

    C unit, respectively; and

    a graphics/drawing and display (GDD) subsystem for providing second signals through a second data bus and through said address and control bus to said memory channel DSC unit and to said A&

    C unit, respectively;

    wherein said memory channel DSC unit provides said GDD subsystem with access to any one of said plurality of memory subsystems and provides said CPU subsystem controller unit with concurrent access to any other of said plurality of memory subsystems.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×