Design for test for a high speed serial interface

摘要

Detecting a connection between two circuits utilizing a high-speed interface. Interface circuitry internal to a computing device performs an initialization process between two processors automatically to determine the state of the interface connection. Test circuitry retrieves the interface state from the interface circuitry. Neither the configuration process, the interface circuitry or the test circuitry require full functionality of an IC on which they reside in order to operate.