Bringing communication networks on a chip: test and verification implications

In this article we present test and verification challenges for system chips that utilize on-chip networks. These SOCs and networks on a chip are introduced, where the NOC is exemplified by Philips´ AE THEREAL NOC architecture. We discuss existing test and verification methods for SOCs and NOCs, and show the particular advantages of using an NOC for both testing and verifying the network, and testing and verifying the other components of the SOC. This article is concluded with our experiences with NOCs and a description of ongoing work within Philips in this emerging field.