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Split-queue architecture with a first queue area and a second queue area and queue overflow area having a trickle mode and an overflow mode based on prescribed threshold values
Split-queue architecture with a first queue area and a second queue area and queue overflow area having a trickle mode and an overflow mode based on prescribed threshold values
A programmable split-queue structure includes a first queue area for receiving entries, a second queue area for outputting entries input to said first queue area, and a queue overflow engine logically coupled to the first queue area and the second queue area. The queue overflow engine functions to transfer entries from the first queue area to the second queue area using one of two transfer modes. The queue overflow engine selects the most appropriate transfer mode based on a prescribed threshold value that can be dynamically programmed. An overflow storage area having high capacity may be provided in an external memory in order to increase the overall capacity of the queue structure.
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