Abstract: An apparatus for dynamic real time generation of interleaver sequences for a decoder includes a vector memory (210) that stores a plurality of vectors (212, 214, 216). Each vector (212, 214, 216) corresponds to a desired reordering of a matrix. A data memory (240) stores individual data elements (242) from a data stream (202) so that each data element (242) is stored in a different memory location in a predetermined order. An interleaver (220) circuit dynamically generates a plurality of interleaver elements (224), each in response to a request signal (226) (being asserted and each pointing to a memory location. A MAP decoder (260) receives the interleaver elements (224) from the interleaver circuit and retrieves the data element (242) stored in a memory location pointed to by each interleaver element (224).