A reconfigurable integrated circuit with a scalable...

H - Electricity – 04 – Q

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H04Q 3/68 (2006.01) G06F 15/78 (2006.01)

Patent

CA 2461540

An integrated circuit (IC) includes a number of function blocks (FB), of which at least one is re-configurable. Each of the FBs may be a reconfigurable function or a non-reconfigurable function or recursively expanded with additional "nested" function blocks. The IC further includes a number of input pins, a number of output pins, and a number of crossbar devices. The elements, at least at the IC level, are coupled in a manner such that all input signals are provided to the FBs through a first subset of the crossbar devices, all internal signals are routed from one FB to another FB through a second subset of crossbar devices, and all output signals are routed from the FBs to the output pins through a third subset of crossbar devices. To increase routability and speed each of the crossbar device output has a single fanout. Additionally, each of the crossbar devices may provide only one input to each other crossbar device.

L'invention concerne un circuit intégré (CI) comprenant plusieurs blocs fonctionnels (BF) dont au moins un est reconfigurable. Chaque BF peut être une fonction reconfigurable, non reconfigurable ou étendue de manière récurrente avec des blocs fonctionnels "imbriqués" supplémentaires. Le CI comprend en outre un certain nombre de broches d'entrée, de broches de sortie et de dispositifs crossbar. Les éléments, du moins au niveau du CI, sont couplés de façon que tous les signaux d'entrée soient fournis aux BF par le biais d'un premier sous-ensemble de dispositifs crossbar, que tous les signaux internes soient acheminés d'un BF à un autre par le biais d'un deuxième sous-ensemble de dispositifs crossbar, et que tous les signaux de sortie soient acheminés des BF aux broches de sortie par le biais d'un troisième sous-ensemble de dispositifs crossbar. Pour accroître la capacité d'acheminement et la vitesse, chaque sortie de dispositif crossbar a une sortance unique. De plus, chaque dispositif crossbar ne peut fournir qu'une entrée pour chaque autre dispositif crossbar.

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