Heterogeneous multiprocessor for the management of real-time videoand graphics streams

摘要

This paper presents an application domain driven approach to thendesign of embedded systems on silicon, and it shows how this approach isnused to design a chip for a multi-window TV application. We discuss allnmajor design steps in a logical order starting with an applicationndomain analysis. This leads to the choice of Kahn data flow graphs asnthe programming paradigm for high-throughput signal applications. Basednon this analysis we designed a multiprocessor architecture which uses anrun-time reconfiguration. Finally, attention is directed towards thenphysical implementation and the deep-submicron problems we had to solve.nThe result is a chip that can manage up to 25 internal real-time videonstreams. The chip combines the flexibility of a programmable solutionnwith the cost effectiveness of a consumer product