US 9,425,800 B2 · Reconfigurable logic device

Abstract

[Problem] To be able to provide a reconfigurable logic device having a small area and enhanced reprogramming characteristics. [Solution] A reconfigurable logic device for forming a plurality of logic circuits in accordance with configuration data information. Each of the multi-lookup table units includes: a configuration memory that stores configuration data; data input lines; data output lines; and a reconfigurable logic multiplexer that, in response to the configuration data, selectively links data inputted to the data input lines to data outputted to the data output lines, and/or outputs, to the data output lines, data obtained by performing a logical operation on data pertaining to the inputted data. The multi-lookup tables that are adjacent to one another are connected through the data input lines and the data output lines of the respective multi-lookup table units.

Claims14

Dependent claims

A reconfigurable logic device for forming a plurality of logic circuits in accordance with configuration data, comprising:

a plurality of multi-lookup table units,
wherein each of the multi-lookup table units includes:
a rewritable configuration memory that stores configuration data for the multi-lookup table unit;
and
data input lines;
data output lines;
and
a reconfigurable logic multiplexer connected to the rewritable configuration memory, the reconfigurable logic multiplexer performing one of or both of:
in accordance with the configuration data, selectively linking at least some of the data input lines to at least some of the data output lines so that data inputted to said at least some of the data input lines are transmitted to said at least some of the data output lines, and
in accordance with the configuration data, outputting, to at least some of the data output lines, data obtained by performing a logical operation on data received from at least some of the data input lines, and
wherein the multi-lookup table units that are adjacent to one another are connected through the data input lines and the data output lines of the respective multi-lookup table units.

8 more elements

A method of controlling a reconfigurable logic device that forms a plurality of logic circuits in accordance with configuration data, said reconfigurable logic device having a plurality of multi-lookup table units, each of the multi-lookup table units including a rewritable configuration memory that stores configuration data for the multi-lookup table unit, data input lines, data output lines, and a reconfigurable logic multiplexer connected to the rewritable configuration memory, wherein the multi-lookup table units that are adjacent to one another are connected through the data input lines and the data output lines of the respective multi-lookup table units, the method comprising:

causing the reconfigurable logic multiplexer to receive the configuration data and, in accordance therewith, selectively link at least some of the data input lines to at least some of the data output lines so that data inputted to said at least some of the data input lines are transmitted to said at least some of the data output lines;
and
causing the reconfigurable logic multiplexer to receive the configuration data and, in accordance therewith, output, to at least some of the data output lines, data obtained by performing a logical operation on data received from at least some of the data input lines.

Dependencies are inferred from the claim text.

Reconfigurable logic device

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Reconfigurable logic device

Life of this patent

Abstract

Claims14