Patent ID: 7506222

Claim:
A system comprising: a slave device; and a master device coupled to the slave device via a plurality of bidirectional data paths; wherein the master device is configured to adaptively modify transmit characteristics based upon data eye information sent via one or more unidirectional data paths by the slave device, wherein the data eye information corresponds to an edge position of data signal transitions received by the slave device on each data path of the plurality of bidirectional data paths; and wherein the master device is further configured to modify data path equalization coefficients within the master device for a grouping of data paths of the bidirectional data paths dependent upon the data eye information; and wherein the master device is further configured to adaptively modify transmit characteristics based upon cyclic redundancy code (CRC) information sent via the one or more unidirectional data paths, wherein the CRC information corresponds to data sent by the master device via the plurality of bidirectional data paths.