G - Physics – 06 – F
Patent
G - Physics
06
F
G06F 13/28 (2006.01)
Patent
CA 2457880
The present invention is related to a method of transferring data in an electronic circuit (10) incorporating a control unit or CPU (21), first circuit blocks (41) and second circuit blocks (61) interconnected by means of a BUS (24). The method and the relating circuit envisage the use of interface devices (45a) and/or (45b), associated to respective circuit blocks, and capable of managing the direct transfer of data from the first block (41) to the second block (61), or vice-versa, without the control by the CPU (21) during such a transfer. For the purpose of this method, and relating circuit (101), interface device (45a) must be, able to intercept control commands issued by CPU (21) and to directly manage the data transfer from the first block (41) to the second block (61) .Thus, the method and the circuit (101), and the interface device (45a) make it possible to considerably reduce the load of CPU 21, BUS 24 and electronic circuit (101) as well.
L'invention concerne un procédé de transfert de données dans un circuit électronique (10) comprenant une unité de contrôle ou une unité centrale (21), un premier bloc de circuits (41) et un second bloc de circuits (61) reliés par un BUS (24). Le procédé et le circuit correspondant font intervenir des interfaces (45a) et/ou (45b), associées aux blocs de circuits respectifs, permettant de gérer le transfert direct de données depuis le premier bloc (41) vers le second bloc (61), ou vice-versa, sans contrôle de la part de l'unité centrale (21) en cours de transfert. Pour les besoins de ce procédé et du circuit correspondant (101), l'interface (45a) doit pouvoir intercepter des instructions de contrôle émanant de l'unité centrale (21) et de gérer directement le transfert de données depuis le premier bloc (41) vers le second bloc (61). Dès lors, le procédé, le circuit (101) et l'interface (45a) permettent de réduire considérablement la charge de l'unité centrale (21), du BUS (24) et du circuit proprement dit (101).
Bragagnini Andrea
Garino Pierangelo
Turolla Maura
Varriale Antonio
Ridout & Maybee Llp
Telecom Italia S.p.a.
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