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Due to the technological progress in the semiconductor industry, more and more components can be integrated on a single die forming a complex System-on-Chip. For enabling an efficient interaction between the various building blocks of today's SoCs, efficient communication structures become more and more essential. In this paper, we present the GigaNoC, a hierarchical Network-on-Chip that is especially suitable for scalable Chip-Multiprocessor architectures. The GigaNoC approach features a packet-switched wormhole routing on-chip network that provides the backbone of our multiprocessor architecture. In order to meet bandwidth requirements of different application domains, our Network-on-Chip is easily scalable and parameterizable in various aspects. This work highlights the communication protocol and shows a performance evaluation for different congestion scenarios. Furthermore, we present an FPGA-based prototypical realization and introduce a debugging and verification environment. Finally, implementation results for a standard cell technology are discussed.
Date of Conference: 29-31 Aug. 2007