US 2007/0164783 A1Published application

Reconfigurable integrated circuits with scalable architecture including one or more adders

AssigneeM2000

InventorOlivier Lepape

Life of this patent

Estimating the term…

Loading patent…

Abstract

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, an adder, 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.

Claims18

Dependent claims

An apparatus, comprising:

first plurality of inputs;
first plurality of outputs;
first one or more function blocks;
first adder;
and
first plurality of crossbar devices coupled to the first plurality of inputs, the first plurality of outputs, and the first one or more function blocks, to couple said first inputs to said first one or more function blocks and/or said first adder, said first one or more function blocks to each other, and said first one or more function blocks to said first outputs, the first plurality of crossbar devices including at least a first, a second, and a third crossbar device, first one or more inputs of the first adder coupled to one or more outputs of the first crossbar device, second one or more inputs of the first adder coupled to one or more outputs of the second crossbar device, and one or more outputs of the first adder coupled to one or more inputs of the third crossbar device;
wherein said first one or more function blocks include at least a first function block comprising one or more recursively nested collections of inputs, outputs, one or more function blocks, an adder, and crossbar devices, with the crossbar devices of each nested collection interconnecting the inputs, outputs, adder, and one or more function blocks of the nested collection in the same manner said first plurality of crossbar devices couple said first inputs to said first one or more function blocks and said adder, said adder to said first one or more function blocks, said first one or more function blocks to each other, and said first one or more function blocks to said first outputs.

4 more elements

Dependencies are inferred from the claim text.