Data Serial Interface Design Based on Compact Ping-Pong Exchange

On the basis of PCM Encoding Theorem ,a method for low rate equipments' imported into high rate digital tran-smission systems is given.A new compact ping-pong exchange design based on signal-data processing is also brought forward to implement the parallel transition between the 32 route asynchronous serial data with the E1 data stream of two million bits per second with one xilinx XCS20TQ144.The result of computer simulation demonstrates that this new interface design is reliable and high-precision.An engineering example is illustrated to show that this method can be widely used in data transmission fields.