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AssigneeFreescale Semiconductor, Inc.
InventorsChristopher Temple, Florian Bogenberger, Mathias Rausch, Manfred Thanner, Thomas Wuerz, Leonard Link, Gregor Pokorny
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A multi-node communications system is provided with communications protocol using both static (11, 12, 13, 18) (pre-determined) and dynamic (51, 52, 53 . . . ) (run-time determined) consecutive communication slots is used. The system has a number of distributed communication nodes, each node being arranged for communicating frames of data with the other nodes during both the static (11, 12, 13 . . . ) and the dynamic (51, 52, 53 . . . ) communication slots. Each node includes a synchronized time base 5 made up of consecutive timeslots (11, 12, 13 . . . , 51, 52, 53 . . . ). The timebase 5 has substantially the same error tolerance in each node. For static communication (10), a predetermined number of timeslots (20) are utilized for each static communication slot. For dynamic communication a dynamically allocated number of timeslots (60) are utilized for each dynamic communication slot. In this way both static and dynamic media arbitration is provided within a periodically recurring communication pattern. Communication jitter is well defined and dealt with, and large oscillator drifts are compensated for.
A communications system for providing media arbitration via a communications protocol using consecutive communication slots, the system comprising:
A communication node for use with a multi-node distributed communications system utilising a communications protocol using consecutive communication slots, the node being arranged to communicate frames of data with other nodes of the system during a dynamic section associated with communication of dynamic communication slots, and each dynamic communication slot having a communication slot number;
A method for providing media arbitration in a multi-node distributed communications system via a communications protocol using consecutive communication slots, the method comprising:
Dependencies are inferred from the claim text.