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    A systemC QoS router design with virtual channels reservation in a wormhole-switched NoC
    (Maltepe Üniversitesi, 2009) Horchani, Mohamed
    Abstract-The current levels of integration make it possible to assemble on the same chip a complete numerical system. The systems on chip or SoCs become increasingly complex; the forecasts promise in the next years the integration of electronic systems of 4 billion transistors for frequencies close to 10 GHz. A powerful and economic solution consists in benefitting from an infrastructure of pre-established configurable communication, namely NoC for Network on Chip. The components communicate then between them by exchanging packages through interconnected network, providing a reusable communication-structure. The recourse to NoC is essential for the great dimension circuits, as well from the technological point of view, as from the functional point of view (facilitated connection of the IPs components and thus of their re-use). The control of the NoC characteristics is a major asset because the consumption and the performance of SoC will be dominated more and more by the communication resources. This paper presents the design of an on-chip network router with Quality-of- Service (QoS) support. The router uses virtual channel architecture with a priority-based scheduler to differentiate between multiple connections with various QoS requirements sharing the same physical channel. The architecture that we propose in this work is composed mainly of five ports. In addition, inside a router we find two under-routers. A SystemC based methodology is used to achieve an RTL simulation of the design.