Multiple arbitration circuit in a crosspoint switch matrix

Details Multiple arbitration circuit in a crosspoint switch matrix Multiple arbitration circuit in a crosspoint switch matrix

G - Physics

06

F

G06F 13/40 (2006.01) G06F 13/16 (2006.01) G06F 13/36 (2006.01) H04L 12/56 (2006.01)

Patent

CA 2460351

A multiple arbitration circuit capable of simultaneously arbitrating multiple paths from at least one source port to at least one destination port through a switch. The circuit comprises a crosspoint unit, and a multiple arbitration unit. The multiple arbitration unit comprises a request decoder, a prioritizer, a crosspoint select encoder and an acknowledge OR. The circuit operates such that if a source port is requesting a destination port that no other source is requesting, then said requested destination port can be arbitrated simultaneously with requests by other source ports for other destination ports.

L'invention concerne un circuit d'arbitrages multiples capable d'arbitrer simultanément plusieurs voies entre au moins un port source et au moins un port de destination par l'intermédiaire d'un commutateur. Ce circuit comprend une unité de points de connexion et une unité d'arbitrage multiple. L'unité d'arbitrage multiple comprend un décodeur de demande, un dispositif d'établissement de priorités, un codeur de sélection de points de connexion et une fonction OU de reconnaissance. Ce circuit fonctionne de façon que si un port source demande un port de destination qu'aucune autre source ne demande, ledit port de destination demandé peut être arbitré simultanément avec des demandes effectuées par d'autres ports sources pour d'autres ports de destination.

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