Resources Contact Us Home
Lookahead bus arbitration system with override of conditional access grants by bus cycle extensions for multicycle data transfers

Image Number 7 for United States Patent #4980854.

A system and method for nodes to obtain access to a bus. In this arbitration method, a central arbiter selects a particular node and issues a conditional grant. The conditional grant is transmitted before it is determined whether access to the bus will actually transfer to another node. Each node contains distributed logic that examines an extend bus cycle signal to determine whether it can become a transmitter to transfer messages on the bus. When a node becomes a transmitter, it generates an extend bus cycle signal to maintain access to the bus when executing a multi-cycle transfer, even though other nodes, perhaps with higher priorities, require access to the bus.

  Recently Added Patents
Squib control circuit
Reliability fire pressure switch
System and method of creating and providing SMS http tagging
Light-emitting device package and method of manufacturing the same
Sensor system
Control device
Bio-stimulant for improved plant growth and development
  Randomly Featured Patents
Apparatus and method for forming a film on a tape substrate
Classic car clock
Agents for unsticking paint, and sedimentation agents
Method and manufacture for constructing watertight
Method of manufacturing semiconductor device, acid etching resistance material and copolymer
Pole face slot filler
Retainer for slip sleeve liners
Method and apparatus for indicating service set identifiers to probe for
Selective etch for II-VI semiconductors
Electronic still camera