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Data transmission method and device

A data transmission method and data technology, applied in the field of communication, can solve the problems of occupying pin resources and time-consuming communication, and achieve the effect of reducing pin resources and saving PCB space.

Pending Publication Date: 2022-03-22
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the LocalBus bus needs 8 / 16 data lines and several address lines and control lines. In this way, not only the communication takes a long time, but also takes up a lot of pin resources, that is, more printed circuit boards (Printed Circuit Boards) are occupied. Circuit Board, PCB) space

Method used

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  • Data transmission method and device
  • Data transmission method and device

Examples

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Embodiment Construction

[0031] Exemplary embodiments will be described in detail herein, and examples are illustrated in the drawings. The following description is related to the drawings, unless otherwise indicated, the same figures in the different drawings represent the same or similar elements. The embodiment described in the exemplary embodiments is not meant to all embodiments consistent with the present application. Instead, they are only examples of apparatus and methods consistent with some aspects of the present application as detailed in the appended claims.

[0032] The terms used in this application are only for the purposes of describing particular embodiments, not intended to limit the invention. The "one", "one", "one", "one", "" "" and "" "used in the present application and the appended claims are also intended to include many forms unless the context clearly represents other meanings. It should also be understood that the terms "and / or" as used herein refer to any or more of any or a...

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Abstract

The invention provides a data transmission method and device, the method is applied to a main control board in routing equipment, an LVDS bus is arranged between the main control board and any one line card board in the routing equipment, and the method comprises the following steps: when it is detected that the LVDS bus has an idle frame and target data needs to be read / written on any one line card board, sending the idle frame to the LVDS bus; sending the start frame to the line card board through the LVDS bus, so that the line card board stops sending the idle frame when receiving the start frame; and after the start frame is sent, a data request frame is sent to the line card board through the LVDS bus, so that the line card board executes related read / write operation on the basis of receiving the data request frame. According to the routing equipment, data transmission between the main control board and the line card board in the routing equipment is realized through the LVDS bus, less pin resources can be occupied, and thus the space of a PCB (Printed Circuit Board) is saved.

Description

Technical field [0001] The present application relates to the field of communication, and more particularly to a data transmission method and device. Background technique [0002] Currently, the main control board in the routing device typically transmits data transfer through the Localbus bus with the line card board in the route to implement the function of the management line card. However, the localbus bus requires 8 / 16 data cables and several root address lines and control lines. So, not only the communication is time consuming, it will take up a lot of pin resources, ie, occupy more printed circuit boards (Printed Circuit Board, PCB) Space. Inventive content [0003] In order to overcome the problems present in the related art, the present application provides a data transmission method and device. [0004] According to the first aspect of the present application embodiment, a data transmission method is provided, the method being applied to a main control board in a routi...

Claims

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Application Information

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IPC IPC(8): H04L45/60H04L1/00
CPCH04L45/60H04L1/0061
Inventor 陆卿马泉泉顾世海
Owner NEW H3C TECH CO LTD
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