An Asynchronous On-Chip Network Router with Quality-of-Service (QoS) Support

Tomaz Felicijan and Steve B. Furber

Abstract

This paper presents an asynchronous on-chip network router with Quality-of-Service (QoS) support. The router uses a virtual channel architecture with a priority based scheduler to differentiate between multiple connections with various QoS requirements sharing the same physical channel. A gate-level prototype of the router has been built and its functionality and performance evaluated. The simulations show that the router is capable of offereing a high level of QoS within the capacity limitations of the network.

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