This paper describes an integrated framework for plug-and-play SOC test automation. This framework is based on a new approach for wrapper/TAM co-optimization based on rectangle packing. We first tailor TAM widths to each core's test data needs. We then use rectangle packing to develop an integrated scheduling algorithm that incorporates precedence and power constraints in the test schedule, while allowing the SOC integrator to designate a group of tests as preemptable. Finally, we study the relationship between TAM width and tester data volume to identify an effective TAM width for the SOC. We present experimental results for non-preemptive, preemptive, and power-constrained test scheduling, as well as for effective TAM width identification for an academic benchmark SOC and three industrial SOCs.
|Title of host publication||Proceedings 2002 Design Automation Conference|
|Place of Publication||Piscataway|
|Publisher||Institute of Electrical and Electronics Engineers|
|Publication status||Published - 2002|