SELF EVALUATION OF SYSTEM ON A CHIP WITH MULTIPLE CORES

摘要

A method and structure tests a system on a chip (SoC) or other integrated circuit having multiple cores for chip characterization to produce a partial good status. A Self Evaluation Engine (SEE) on each core creates a quality metric or partial good value for the core. The SEE executes one or more tests to create a characterization signature for the core. The SEE then compares the characterization signature of a core with a characterization signature of neighboring cores to determine the partial good value for the core. The SEE may output a result to create a full characterization map for detailed diagnostics or a partial good map with values for all cores to produce a partial good status for the entire SoC.

主权项

1. A method for testing cores on an integrated circuit comprising:
each core of a plurality of cores performing the steps of:
producing a local signature that characterizes a local core, wherein each core of the plurality of cores is considered the local core;comparing the local signature to neighbor core signatures of a plurality of neighbor cores; andproducing a goodness value for the local core based on comparing the local signature to the plurality of neighbor core signatures.