Resumo

ORTEGA-CISNEROS, S. et al. Hardware and Software Co-design: An Architecture Proposal for a Network-on-Chip Switch based on Bufferless Data Flow. J. appl. res. technol [online]. 2014, vol.12, n.1, pp.153-163. ISSN 2448-6736.

The use of on chip networks as interconnection media for systems implemented in FPGAs is limited by the amount of logical resources necessary to deploy the network in the target device, and the time necessary to adjust the network parameters to achieve the performance goal for the system. In this paper we present a switch architecture, with data flow control based on circuit switching and aimed for on-chip networks with a Spidergon topology, which seeks to reduce the area occupied without severely affecting the overall network performance. As a result, we obtained a switch that requires only 114 slices in its most economic version on a Virtex 4-device. We also provide a performance profile, obtained by subjecting a network formed by these switches to different synthetic workloads within a simulator. This simulator was developed as part of the design flow of the switch, and it proves to be an essential tool for the test and validation process.

Palavras-chave : NoC; SoC; FPGA; RTL; simulator; hardware software co-design.

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