Patent ID: 7412571

Claim:
A memory hub coupled to at least one memory device, the memory hub comprising: remote and local input nodes; an output node; a configurable data path coupled to the remote and local input nodes and further coupled to the output node, the configurable data path operable to couple at least one read response received by the remote and local input nodes to the output node; and an arbitration control circuit coupled to the configurable data path, the output node, and the remote and local input nodes, the arbitration control circuit operable to generate an arbitration packet that includes data indicative of a data path configuration for a local read response received by the local input node and operable to provide the arbitration packet to the output node prior to providing the associated read response to the output node, the arbitration control circuit further operable to configure the configurable data path in accordance with data included in a downstream arbitration packet received by the remote input node in preparation of coupling an associated downstream read response to the output node.