System for sharing resources in a digital filter

摘要

A digital filter has a filter cell for generating processed data. The digital filter cell includes plurality of coefficient registers which are arranged to circulate a plurality of coefficient values that correspond to a plurality of coefficients such that each of the plurality of coefficients is output once during a predetermined period. One or more data registers are arranged to circulate a data value for a time which is at least as long as the predetermined period such that the data value is output each time that a different one of the plurality of coefficients is output. A circuit receives each output data value and each output coefficient and generates processed data by processing each output data value with each output coefficient.