Abstract| This paper proposes polling-based realtime software for MPEG2 System protocol LSIs, which i s a t ypical embedded and real-time system on a chip, and demonstrates its performance and usefulness. The polling-based real-time software is designed and optimized by analyzing application specic function requirements and deciding scheduling intervals and the execution cycles of each task. It requires neither hardware for multiple interrupt handling nor software for heavy context switching.

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... e pollingbased approach provides sucient performance without any hardware and software overhead for a realtime application like the MPEG2 System protocol.