A digital processing circuit for processing media data includes a data path arranged to transmit at least media data along the data path between a plurality of processing modules connected serially. The data is transmitted directly from the output of a first module to an input of a second module of the plurality by sequential clocking signals. A routing controller controls transmission of data from the first of the plurality of processing modules to any target processing module selected from the plurality of modules by providing an identification for the target processing module in a signal provided on the datapath.