Network port state indication circuit and system

Abstract

The invention discloses a network port state indication circuit and system. The network port state indication circuit comprises a control signal interface port, a moving lamp circuit, a filter circuit, a shaping amplifier circuit and a connecting lamp circuit, wherein an output end of the control signal interface port is connected with an input end of the moving lamp circuit; the output end of thecontrol signal interface port is connected with the input end of the filter circuit; the output end of the filter circuit is connected with the input end of the shaping amplifier circuit; and the output end of the shaping amplifier circuit is connected with the input end of the connecting lamp circuit. According to the network port state indication circuit and system, through the technical meansof flexibly using the filter circuit and the shaping amplifier circuit and introducing the moving lamp circuit into the input end of a reset circuit, the technical problem that accurate indication ofthe connection state and the active state of a network port cannot be achieved due to shortage of ports of chips in the prior art is solved, the target of accurately displaying the network connectionstate through fast response in the network port indication function is achieved, the query burden of a main chip is reduced and the main program architecture design is optimized.

Description

technical field [0001] The invention relates to the technical field of network port indicator lights, in particular to a network port status indicating circuit and system. Background technique [0002] With the increasing diversification of multimedia and network communication business needs, the chip is required to support more and more functions, and the peripheral circuits of the chip pins are also very flexible, and almost all the functions of the secondary multiplexing are used. Due to the diversification of user needs, the functions that chip manufacturers need to develop must be introduced. [0003] During the use of the network port, the connection light and the activity light will be used to indicate the network connection status, but because some chips do not reserve the pins of the activity light, the connection of the activity light can only be realized through the ordinary network port, but the connection light cannot be connected. That is, only one flashing li...

AI Technical Summary

Problems solved by technology

[0003] During the use of the network port, the connection light and the activity light will be used to indicate the network connection status, but because some chips do not reserve the pins of the activity light, the connection of the activity light can only be realized through the ordinary network port, but the connection light cannot be connected. That is, only one flashing light can be realized on the ordinary network port, but the corresponding indication function cannot be realized on the other connected light

In order to realize the integrity of the indication function, GPIO is usually used to drive the light, but the realization of this function by GPIO will cause a large query burden on the CPU. In order to ensure a good display effect, the CPU must check the PHY connected to the main chip in a short time The chip performs query and the status value of the MAC status register at the same time, but this time must be fast enough, otherwise when the network cable is connected, the CPU will not have time to operate the simulated GPIO, and the phenomenon that the user sees is that the activity light has been on after the network cable is connected Yes, but the connection light has not lit up in time.

When the network cable is pulled out, because the query time is not up or the high-priority terminal arrives, the connection light and activity light are off out of sync, so that the connection light or activity light cannot accurately display the network connection and activity status

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