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A circuit structure and method for optimizing ncsi signal quality

A signal quality and resistance technology, used in electrical components, electrical digital data processing, instruments, etc., can solve problems such as deteriorating signal rise time, and achieve the effect of reducing link design risks, wide application, and optimizing signal quality.

Active Publication Date: 2020-08-25
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Increasing the value of the series resistor at the transmitter can optimize the signal overshoot problem, but it will further deteriorate the signal rise time
Similar problems cannot be solved by simply adjusting the series resistance

Method used

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  • A circuit structure and method for optimizing ncsi signal quality
  • A circuit structure and method for optimizing ncsi signal quality
  • A circuit structure and method for optimizing ncsi signal quality

Examples

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Embodiment

[0044] Example: such as figure 1 As shown, the topology is an NC-SI link. There are two sections of cable and a selection switch MUX in the link. Both the transmitting end and the receiving end of the link have reserved series resistors. When the signal quality of the NC-SI link is poor due to a long link or a complex link topology, it is not possible to solve multiple problems at the same time by adjusting the link series resistance.

[0045] On the basis of the above link topology, the improved NC-SI link topology adds a pull-down resistor at the receiving end. By adjusting the resistance and position of the pull-down resistor, it can more effectively solve the problems of signal ringback and long rise / fall time. problem, link topologies such as figure 2 shown.

[0046]In order to further illustrate the method for optimizing the signal quality of the NC-SI link in the present invention, an actual link is taken as an example for detailed description. The original link top...

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Abstract

The invention discloses a circuit structure and method for optimizing the quality of an NCSI signal. The circuit structure comprises an NCSI link, the transmitting end of the NCSI link is connected with a network card chip, the receiving end of the NCSI link is connected with a BMC chip, a downward pulling resistor is configured at the receiving end, the input end of the downward pulling resistoris connected with the receiving end of the NCSI link, and the output end of the downward pulling resistor is grounded. Compared with the prior art, the circuit structure and method for optimizing thequality of the NCSI signal have the advantages that the problem that due to the fact that the link is long or the link topology is complex, the quality of the NC-SI link signal is poor can be effectively solved, a good optimization effect can be achieved particularly when the problems of ringing back, overlong rising / falling time and the like are generated in the link simultaneously, the link design risk is reduced, the system design success rate is increased, the practicability is high, the application range is wide, and popularization is easy.

Description

technical field [0001] The invention relates to signal quality optimization technology, in particular to a highly practical circuit structure and method for optimizing NCSI signal quality. Background technique [0002] With the rapid development of IT technology, people have higher and higher requirements for server management technology, among which reliability and stability are very important index requirements. At present, a conventional method is to use the BMC chip to connect to the network card chip through the NC-SI signal bus, and to send or receive the monitoring information of the server through the network port of the shared server network card chip. The full English name of the NC-SI is: Network Controller Sideband Interface, the Chinese full name is the network controller sideband interface. [0003] In the process of server system NC-SI link design, when the link is too long or the link loss is large, the signal quality will be deteriorated, which often leads ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40H04B1/401H04L12/24G06F30/337
CPCH04B1/40H04L41/0803H04L41/12H04L41/145
Inventor 荣世立田民政孙龙张长林
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD
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