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Serial bus data transmission method and device

A data transmission method and technology of a data transmission device are applied in the field of communication and can solve problems such as crosstalk and affecting data transmission.

Active Publication Date: 2011-08-24
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a serial bus data transmission method and device, which solves the problem that crosstalk affects data transmission

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  • Serial bus data transmission method and device

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Embodiment Construction

[0036] When multiple serial channels work at the same time, the problem of crosstalk between channels will inevitably be brought, which will lead to increased channel delay, reduced signal integrity, increased noise, etc., which has become a problem that restricts the development of serial buses. big problem. Furthermore, since the serial channel uses high-speed signals to transmit data, it is necessary to adopt a verification method to detect and correct the data transmitted on the high-speed serial channel. However, each verification method has a maximum range of data that can be detected, and errors on the channel cannot be detected beyond this range. Therefore, when a channel on the serial bus has a sudden error whose length exceeds the maximum range of the verification, the data verification can do nothing.

[0037] To solve the above problems, in addition to considering the PCB board-level circuit design, if a method can be adopted from the source of the high-speed seri...

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Abstract

The invention provides a serial bus data transmission method and device, which relate to the field of communications, and solve the problem that the crosstalk influences the data transmission. The method comprises the following steps: allocating a quadrant value and a bit offset value for each serial channel in a plurality of serial channels, wherein a plurality of serial channels corresponding to a same quadrant value constitute a quadrant, and the bit offset values of different serial channels with a same quadrant value are different; carrying out bit coding according to the quadrant value and bit offset value of each serial channel, and matching each serial channel to a corresponding physical link, wherein adjacent serial channels are matched to non-adjacent physical links; and carrying out data transmission by the serial channels subjected to matching. The technical scheme provided by the invention is applicable to realizing the low-crosstalk data transmission in the process of data transmission performed by a plurality of parallelly-running serial channels.

Description

technical field [0001] The invention relates to the communication field, in particular to a serial bus data transmission method and device. Background technique [0002] With the rapid development of computer science and technology, bus bandwidth has become one of the important indicators to measure system performance. According to the different forms of data transmission, the bus is divided into two types: serial bus and parallel bus. The parallel bus refers to the simultaneous transmission of data bits, which has high requirements for data synchronization and has become one of the bottlenecks restricting the bandwidth improvement of the parallel bus. After the transmission speed reaches the limit, the length of the parallel bus signal line cannot be extended, the signal synchronization is difficult to maintain, and the disadvantages of high power consumption of the signal line also appear. At this time, the serial bus is a bus form in which data is allocated to high-spee...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L12/40
Inventor 周恒钊
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD