Systolic realisation for 2-D convolution using configurable functional method in VLSI parallel array designs

Besides introduction to the configurable functional method (CFM) proposed by the first author, which achieves high configurability to match various application aspects, a new realisation of 2-D convolution is presented using the CFM. It has the advantage of CFM arrays whose PEs and array are configurable. In systolic realisation of 2-D convolution with window size on a mesh-connected 2-D CFM array, the input data are permitted to be scanned row-wise and obtained from array boundaries. In addition to the 2-D CFM array, shift registers are used for storing the input data, in a real time processing system with video rate. Because of the configurability of the proposed 2-D systolic array, this architecture is also useable in other applications, such as matrix vector (or matrix) multiplication.