Patent ID: 7958283

Claim:
An apparatus comprising: a package including: a first die to perform operations on data, the first die including a first interface to enable communication between the package and an external link and a second interface to enable communication between the first die and a second die within the package via an intra-package link, a test controller to enable transmission of an intra-package communication, a first multiplexer having a first input coupled to a transmit portion of the second interface and a second input coupled to a receive portion of the second interface, and a second multiplexer having a first input coupled to an output of the first multiplexer and a second input coupled to the first interface, the first and second multiplexers controlled by the test controller; and the second die coupled to the first die via the intra-package link and including a third interface to enable communication between the first die and the second die via the intra-package link, wherein the first die is to transmit intra-package communication along the intra-package link from the package via the external link.