High bandwidth reconfigurable on-chip network for...

Details High bandwidth reconfigurable on-chip network for... High bandwidth reconfigurable on-chip network for...

2007-05-29

2007-05-29

Tran, Anh Q. (Department: 2819)

Electronic digital logic circuitry

Multifunctional or programmable

Array

C326S038000, C326S047000

Reexamination Certificate

active

10981932

ABSTRACT:
A crossbar switch (50) is implemented in a reconfigurable circuit, such as a FPGA, instantiated with a number of modules (40), the crossbar switch (50) providing communication links between the modules (40). The modules (40) and crossbar switch (50) can be easily updated in a partial reconfiguration process changing only portions of modules (40) and the crossbar switch (50) while other portions remain active. The crossbar switch (50) uses individual wiring to independently connect module outputs and inputs so that asynchronous communications can be used. The crossbar switch (50) can be implemented in different embodiments including a Clos crossbar switch, and a crossbar switch connecting each module output only to a corresponding module input, allowing for a reduction in the amount of FPGA resources required to create the crossbar switches.

REFERENCES:
patent: 6492834 (2002-12-01), Lytle et al.
patent: 6625793 (2003-09-01), Sample et al.
patent: 6759869 (2004-07-01), Young et al.
patent: 6947882 (2005-09-01), Reblewski et al.
U.S. Appl. No. 10/188,510, filed Jul. 3, 2002, Alfke et al.
U.S. Appl. No. 10/377,857, filed Feb. 28, 2003, Blodget et al.
U.S. Appl. No. 10/618,316, filed Jul. 11, 2003, Lysaght et al.

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