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MDIO bus slave unit and method for improving anti-jamming capability

A device and bus technology, applied in the field of MDIO bus, can solve the problem of low anti-interference ability of MDIO bus, achieve the effect of improving anti-interference ability and avoiding errors

Inactive Publication Date: 2015-04-08
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is the problem that the anti-interference ability of the slave equipment of the MDIO bus is relatively low

Method used

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  • MDIO bus slave unit and method for improving anti-jamming capability

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] The embodiment of the present invention provides a method for improving the anti-interference ability of MDIO slave equipment, such as figure 1 , figure 2 As shown, the method includes the following steps:

[0027] Step 101, running a local high-speed clock with a frequency of 100MHz on the MDIO bus slave device to generate a reference clock signal for generating the MDC slave clock, see figure 2 CLK_100MHz in.

[0028] It should be noted that the frequency of the local high-speed clock is generally 10 times or more than the frequency of the MDIO main clock, and may also be other values, which are not limited here.

[0029] Step 102, capture the starting moment of the rising edge and falling edge of the received MDC master clock signal, see figure 2 , MDC is the MDC main clock, and MDC_T is the capture time of the MDC main clock...

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Abstract

The invention discloses an MDIO bus slave unit and a method for improving anti-jamming capability. The method comprises the steps of running a local high-speed clock on the MDIO bus slave unit, capturing the starting moments of the rising edge and the falling edge of a received MDC main clock signal, generating an MDC slave clock by use of the local high-speed clock according to the starting moments of the rising edge and the falling edge of the MDC main clock signal, and enabling the MDIO bus slave unit to perform MDIO bus data processing by use of the MDC slave clock. According to the method for improving the anti-jamming capability, wrong data acquisition due to distortion of the MDC clock signal under jamming is avoided and the anti-jamming capability of the MDIO bus slave unit is improved.

Description

technical field [0001] The invention relates to the technical field of MDIO bus in the optical communication technology, in particular to an MDIO bus slave device and a method for improving anti-interference ability. Background technique [0002] CFP (Centum Form Factor Pluggable, multi-functional pluggable) MSA (Multi-Source Agreement, multi-source agreement) stipulates that the information exchange between the CFP optical module and the line card motherboard adopts MDIO (Management Data Input and Output, management data input and output) bus for communication. [0003] Normally, the 100G CFP optical module needs to be used in conjunction with various line card motherboards. Since the hardware environment of various line card motherboards is different, the 100G CFP optical module will generate signals during the communication process with the line card motherboard through the MDIO bus. Transmission damage, causing signal distortion. The way to overcome this distortion is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/42
CPCG06F13/385G06F13/4273
Inventor 钟永波万中波陈飞月
Owner FENGHUO COMM SCI & TECH CO LTD
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