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Abstract

A multi-first-in-first-out (henceforth 'multi-FIFO') memory circuit in accordance with this invention comprises: (1) a plurality of groups of storage elements, for example, each group corresponds to a first-in-first-out (FIFO) memory (2) a time multiplexed first address generator for generating address signals of a storage element from a first group that is cyclically selected from the plurality of groups by a sequencer included in the first address generator and (3) a second address generator for generating address signals of a number of successive storage elements from a second group that is selected from the plurality of groups by a signal on a group request terminal of the second address generator. In one embodiment the storage elements are part of a dualport random-access-memory (RAM), and are accessed by each of the first and second address generators using a number of pairs of pointer registers that are coupled to the address generators. Each pair of pointer registers includes a read pointer register that indicates a corresponding group's next storage element to be read and a write pointer register that indicates the group's next storage element to be written.

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First Claim