Tiled switch matrix data permutation circuit

A method comprising:

• for each switching group of a plurality of switching groups each comprising a plurality of switching stages, receiving, by a first subset of the plurality of switching stages, input data and switch control settings, switching stages in the first subset span to successively more adjacent switching blocks, each switching block comprises a defined number of input and output data lines;
• selectively coupling, via an intermediate switching stage, an output switching stage of the first subset with an input switching stage of a second subset of the plurality of switching stages, switching stages in the second subset span to successively fewer adjacent switching blocks, wherein the output switching stage belongs to a first of the switching groups, the input switching stage belongs to a second of the switching groups, the intermediate switching stage spanning the plurality of switching groups and comprising a first number of M×M switches in each switching block, wherein the first number is a number of switching blocks in each switching group, and M is a number of the switching groups;
• and
• for each switching group, generating, by the second subset of the plurality of switching stages, an output data with an output pattern different from an input pattern of the input data based on the switch control settings.