1. A reconfigurable filter node comprising: an input data memory adapted to store a plurality of input data values; a filter coefficient memory adapted to store a plurality of filter coefficient values; and a plurality of logically adjacent computational units adapted to simultaneously compute filter data values, wherein each computational unit is adapted to process at least one input data value and one filter coefficient; wherein each computational unit comprises a first input data value register adapted to store an input data value, and at least one of the first input data value register of the computational units is adapted to load a successive input data value from the first input data value register of a logically adjacent computational unit.