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Block Diagram P8X32A

Cog and Hub interaction is critical to the Propeller chip.  The Hub determines which one of the Cogs (Processors) has access mutually exclusive Shared Resources at a given moment, such as Main Memory, configuration registers, etc. The Hub gives exclusive access to each cog one at a time in a “round robin” fashion, regardless of how many cogs are running, in order to keep timing deterministic.

P8X32A Block Diagram

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Propeller Help Version 1.1

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5/13/2009