Infoscience

Patent

Network-on-chip using request and reply trees for low-latency processor-memory communication

A Network-On-Chip (NOC) organization comprises a die having a cache area and a core area, a plurality of core tiles arranged in the core area in a plurality of subsets, at least one cache memory bank arranged in the cache area, whereby the at least one cache memory bank is distinct from each of the plurality of core tiles. The NOC organization further comprises an interconnect fabric comprising a request tree to connect to a first cache memory bank of the at least one cache memory bank, each core tile of a first one of the subsets, the first subset corresponding to the first cache memory bank, such that each core tile of the first subset is connected to the first cache memory bank only, and allow guiding data packets from each core tile of the first subset to the first memory bank, and a reply tree to connect the first cache memory bank to each core tile of the first subset, and allow guiding data packets from the first cache memory bank to a core tile of the first subset.

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