Testing and diagnosis of interconnects using boundary scan architecture

A built-in self-test of interconnects based on boundary scan architecture is described. Detection and diagnosis schemes are proposed which provide minimal-size test vector sets. I/O scan chains order independent test vector sets and walking sequences. Properties like ease of test vector generation, structure-independent detection and diagnosis, and local response compaction have made the developed schemes suitable for built-in-self-test implementation. An example board-interconnect test session is described using one of the proposed schemes.<<ETX>>