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Networks on Chips for High-End Consumer-Electronics TV System Architectures

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5 Author(s)
F. Steenhof ; IC Lab, Philips Consumer Electronics, Eindhoven, The Netherlands ; H. Duque ; B. Nilsson ; K. Goossens
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Consumer electronics products, such as high-end (digital) TVs, contain complex systems on chip (SOC) that offer high computational performance at low cost. Traditionally, these SOCs are application-specific standard products (ASSPs) with limited programmability We describe why TV SOCs must become more flexible, and why companion chips together with networks on chips (NOC) are a crucial enabling technology In particular, networks that span multiple chips will become important in the near future. We demonstrate our ideas by extending a commercially-available SOC for picture improvement in high-end TVs with the /Ethereal NOC. Our first unoptimised results indicate that replacing the original interconnect (consisting of dedicated links and multiplexers for bypasses) by programmable NOC increases the SOC area by 4% and its power dissipation by 12%. The new, flexible SOC allows new tasks to be spliced in at any point in the task graph. Both analytical performance verification and system simulations at RTL VHDL show that the extended SOC meets its functional requirements. Using the /Ethereal design flow the extended architecture was designed, implemented, and verified in 12 person months. To the best of our knowledge, this is the first application of a NOC to a commercial SOC. The quantitative results indicate that even retrofitting a NOC to an existing architecture is beneficial at acceptable cost

Published in:

Proceedings of the Design Automation & Test in Europe Conference  (Volume:2 )

Date of Conference:

6-10 March 2006