An efficient algorithm for the extraction of compressed diagnostic information from embedded memory cores

This paper addresses the issue of diagnosing a memory core embedded in a complex SOC. The proposed solution is based on a P1500-compliant wrapper. The proposed solution exploits a hardware-implemented compression method that minimizes the amount of data to be transferred from the core to the ATE. The proposed solution takes into account several constraints existing in an industrial environment, such as reducing the time and area overheads required for diagnosis, and minimizing the cost of the external ATE. Experimental results are provided allowing evaluating the benefits and limitations of the adopted solution.