Multiplexing/demultiplexing structure for serial data transmission of low power consumption

Abstract

The invention discloses a multiplexing / demultiplexing structure for serial data transmission of low power consumption. The structure comprises a serializer and a deserializer, wherein the serializer comprises a plurality of stages of multiplexers; the deserializer comprises the same stages of demultiplexers as those of the multiplexers; the multiplexers and the demultiplexers have the same proportion or different proportions; each stage of multiplexer or demultiplexer comprises shift registers with the same number as a multiplexing ratio and a plurality of paths of selectors in one-to-one correspondence; the structure is characterized in that a value of data of a final bit of N bits of serial data is preset in a sequence of the shift register of the final stage of the serializer; and the value of the data of the final bit of N bits of previous serial data is preset in the shift register of the deserializer. The multiplexing / demultiplexing structure can reduce the change of state of the shift register to the greatest extent and obviously reduce the power consumption of the device.

Description

technical field [0001] The invention relates to a data multiplexing / demultiplexing technology in the field of data communication, in particular to a multiplexing / demultiplexing architecture capable of minimizing the state transition of a shift register, and belongs to the field of electricity. Background technique [0002] The technology of data multiplexing / demultiplexing is widely used in the design of modern high-speed data communication system. It can provide higher data rate, more stable reliability, lower noise generation, higher noise immunity and lower power consumption. Multiple channels of parallel data at the transmitter end are multiplexed and converted into one channel of serial data, and the corresponding serial data is demultiplexed at the receiver end to become parallel data. [0003] Serializers and deserializers include M-level multiplexers and demultiplexers. Each stage of multiplexer or demultiplexer has the same ratio N 0 to achieve N 0 M The multip...

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Problems solved by technology

[0009] In view of the above-mentioned existing technical requirements, the purpose of the present invention is to propose a multiplexing / demultiplexing architecture applied to low-power serial data transmission, so as to solve the problem that the heat generation caused by the shrinking of data communication devices does not change with power consumption. Or rise and rise, causing the problem of device heat loss

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