Synthesis of Low-Overhead Configurable Source Routing Tables for Network Interfaces

Provided by: edaa
Topic: Hardware
Format: PDF
In on-chip multiprocessor communication, link failures and dynamically changing application scenarios represent demanding constraints for the provision of suitable Quality-of-Service (QoS). Network-on-Chips (NoCs) featuring dynamic routing is a known way to tackle these issues, but deadlock freedom and message ordering concerns arise. NoCs with configurable routing, whereby the communication routes are explicitly chosen at runtime out of a set of statically predefined alternatives, provide intelligent adaptation without impacting the consistency of traffic flows. However, configurable source routing on a NoC platform requires a design that provides fast path lookup coupled with low area and power consumption.

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