On-line fault detection and location for NoC interconnects

TitleOn-line fault detection and location for NoC interconnects
Publication TypeConference Paper
Year of Publication2006
AuthorsGrecu, C., A. Ivanov, R. Saleh, E. S. Sogomonyan, and P. P. Pande
Conference NameOn-Line Testing Symposium, 2006. IOLTS 2006. 12th IEEE International
Pagination6 pp.
Keywordscommunication fabrics, communication links, encoding, fault diagnosis, fault location, integrated circuit interconnections, inter switch links, network on chip, network-on-chip, NoC interconnects, online fault detection, parity check codes, parity check encoding, performance parameters, telecommunication links

A novel method for on-line fault detection and location in network-on-chip (NoC) communication fabrics is introduced. This approach is able to distinguish between faults in the communication links and faults in the NoC switches. The idea is based on the use of code-disjoint routing elements, combined with parity check encoding for the inter-switch links. We analyze the effect of our method on relevant performance parameters - power, latency, and throughput. Experiments show that our approach is effective and requires minimal modifications of the existing design methods for NoC interconnects


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