To achieve high performance and simplify the design

this paper presents the system design for de&re-multiplexing of MPEG-2 TS(transport stream) based on DM642.Compared to former methods

this design uses many DM642 internal hardware properties such as Video Port

PCI(peripheral component interconnect)

EDMA(enhanced direct memory access) etc

by which the system performance is enhanced.The algorithm of PCR(program clock reference) correction based on VIC Port(voltage controlled crystal oscillator interpolated control port) is proposed which reduces the complexity of PCR correction.Experiments have proved that the max TS processing rate is 80 Mbps

which meets the application requirements.