Design of multi-tasking coprocessor control for Eclipse

Authors:
Martijn J. Rutten;Jos T. J. van Eijndhoven;Evert-Jan D. Pol
Affiliations:
Philips Research Laboratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands;Philips Research Laboratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands;Philips Semiconductors, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands
Venue:
Proceedings of the tenth international symposium on Hardware/software codesign
Year:
2002

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Abstract

Eclipse defines a heterogeneous multiprocessor architecture template for data-dependent stream processing. Intended as a scalable and flexible subsystem of forthcoming media-processing systems-on-a-chip, Eclipse combines application configuration flexibility with the efficiency of function-specific hardware, or coprocessors. To facilitate reuse, Eclipse separates coprocessor functionality from generic support that addresses multi-tasking, inter-task synchronization, and data transport. Five interface primitives accomplish this separation. The interface facilitates the design of coprocessors that require complex control to handle data-dependent I/O, saving/restoring task state upon task switches, and pipelined processing. This paper presents how this interface enables the design of such reusable yet cost-effective coprocessors.