SERDES multi-master communication system based on Loongson 3A3000

Abstract

The invention discloses an SERDES multi-master communication system based on Loongson 3A3000, and the system comprises a master control chip and a master chipset; the Loongson 3A3000 is used as the master control chip, the Loongson 7A1000 is used as the master chipset, the master chipset is connected with two SERDES communication chips, and the two SERDES communication chips are connected with a VPX connector; the master control chip monitors SERDES bus signals in real time through the master chipset, the master control chip is connected with the level conversion chip, and the level conversionchip is connected with the two SERDES communication chips through the power supply chip. When the SERDES main communication circuit has a communication error, the master control chip sends a GPIO control signal to control the enable pin of the power supply chip and control the power supply of the two paths of SERDES communication chips through the level conversion chip so as to realize the switching of the SERDES circuits. The invention has the advantages and beneficial effects that the MAC interface of the Loongson 7A1000 is used for controlling the multi-channel communication chip to achieve multi-channel SERDES communication, power supply and interface switching of the system to equipment are achieved through the control circuit, and the method has the advantages of being stable in performance, high in applicability and high in operability.

Description

Technical field[0001]The invention belongs to the field of computer communication control, and specifically relates to a SERDES multi-master communication system based on Loongson 3A3000.Background technique[0002]With the development of technology in the electronics industry, especially in the development of transmission interfaces, the speed of traditional parallel interfaces has reached a bottleneck, replaced by faster serial interfaces, so the SerDes technology originally used for optical fiber communication has become It is the mainstream of high-speed serial interface. The serial interface mainly applies differential signal transmission technology, which has the characteristics of low power consumption, strong anti-interference, and fast speed. In theory, the highest transmission rate of the serial interface can reach more than 10Gbps.[0003]SERDES is the abbreviation of English SERializer (serializer) / DESerializer (deserializer). It is a mainstream time division multiplexing (T...

AI Technical Summary

Problems solved by technology

Most of the current military computer products use foreign CPU chips, and the imported CPU chips will have a back door at the bottom layer. Chip manufacturers can remotely control the terminal using the chip and obtain data, so information security cannot be guaranteed.

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