×

Bus control system

  • US 20030070020A1
  • Filed: 10/22/2002
  • Published: 04/10/2003
  • Est. Priority Date: 02/18/1992
  • Status: Active Grant
First Claim
Patent Images

1. A bus control method for use in a data processing system having a plurality of modules connected to at least one bus and adopting a split transfer protocol in which a start cycle and a response cycle of a read access operation of each of the modules is separated from each other with respect to time, comprising the steps of:

  • assigning identifiers to said plurality of modules, respectively;

    outputting, when a split read operation is initiated from a source module to an access destination module, an address specifying the destination module and identifier information representing an identifier of the source module from the source module; and

    outputting, when a response is achieved from the destination module to the source module, response data of the split read operation and said identifier information from the destination module.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×