Apparatus and method of implementing breq routing to allow functionality with 2 way or 4 way processors

An apparatus for implementing bus request routing to allow functionality with 2 way or 4 way processors, the apparatus comprising:

• a bus request route switching stage coupled to a bus and configured to select a first route configuration if a dual processor arrangement is coupled to the bus, the switching stage configured to select a second route configuration if a multi-processor arrangement is coupled to the bus.

A method of changing bus request routing to allow functionality with 2 way or 4 way processors, the apparatus comprising:

• detecting if a dual processor arrangement or a multi-processor arrangement is coupled to a bus;
• and
• selecting a first route configuration if a dual processor arrangement is coupled to the bus and selecting a second route configuration if a multi-processor arrangement is coupled to the bus.

24 An apparatus for changing bus request routing to allow functionality with 2 way or 4 way processors, the apparatus comprising:

• means for detecting if a dual processor arrangement or a multi-processor arrangement is coupled to a bus;
• and coupled to the detecting means, means for selecting a first route configuration if a dual processor arrangement is coupled to the bus and for selecting a second route configuration if a multi-processor arrangement is coupled to the bus.