An encoder within a communication system that avoids encoded DC accumulation and can use coding violations to synchronize a decoder and detect transmission errors

摘要

A communication system for interconnecting a network of a digital system is disclosed. Each node of the communication system may comprise a transceiver and an encoder / decoder. The encoder transmits via the communication link based on the coding the input data stream and the encoded data stream to the DC adaptively encoding mechanism. The encoded data stream does not have a DC component value to make the detector at the receiver end of the communication link with a substantially asymmetric. In addition, the encoded signal is transmitted not greater than the input bitstream. Encoding is generated in dependence on the digital agreement values of the logical value for the preceding clock cycle (DSV _n-1) and the input bit stream for a bit stream encoded as well as a subsequent clock cycle n + 1 for the current clock cycle n . The encoding according to the encoding or normal encoding depends on these multiple values. Coding violations to synchronize the detector, and detecting transmission error, and can be used in the preamble to lock the phase-locked loop (PLL) in the receiver quickly. ; An encoder, a decoder, PLL, a preamble, a coding violation, encoding, decoding