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 ABSTRACT
The evolution of technologies is enabling the integration of complex platforms in a single chip; called System-on-Chip, SoC. Modern SoC may include one or several CPU subsystems to execute software and sophisticated interconnect in addition to specific hardware subsystems. This is no more an advanced research topic for academia. 90% of SoCs designed since the start of the 130nm process include at least one CPU. Multimedia platforms (e.g. Nomadik and Nexperia) are already multiprocessor systems-on-chip (MPSoCs) using different kinds of programmable processors (e.g. DSPs and microcontrollers). This trend of building heterogeneous multi-processor SoCs will even accelerate. It is easy to imagine that the design of a SoC with more than a hundred processors will become a current practice in a few years time, e.g. with 45nm technology in 2008. Compared with conventional ASIC design, such a multi-processor SoC is a fundamental change in chip design. These chips will include very sophisticated interconnect such as networks-on-chips (NoC). Moreover, to achieve the required communication performances, each processor may use different local architectures and communication schemes (fast links, non standard memory organization and access). REFERENCES
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