A Reed-Solomon decoder with the efficient recursive cell architecture for DVD application

We implement a (208,192) Reed-Solomon decoder for the digital versatile disk (DVD). We propose an efficient Euclid cell and a VLSI architecture of a modified Euclid´s algorithm (MEA) for the Reed-Solomoon (RS) decoder. We reduce the symbol time about 30% compared to the one based on the conventional architecture. A new MEA architecture has a recursive structure, in which the number of basic operating cells can be reduced, when the number of symbol time spent in the MEA operation is larger then codeword length n. We implemented an RS (208,192) decoder with the efficient recursive cell architecture using a FLEX10KE200 FPGA of ALTERA. The maximum decoding rate of this system is 20 Mbytes/sec, which is sufficient for DVD applications