PCIE (Peripheral Component Interface Express) interface and serial port parallel port conversion circuit

Abstract

The invention discloses a PCIE (Peripheral Component Interface Express) interface and serial port parallel port conversion circuit, which comprises a main chip, a golden finger, a control module, a serial port and a parallel port, wherein the main chip is used for performing PCIE communication protocol conversion; the golden finger is connected with the main chip, so that after the golden finger is inserted into a PCIE slot of the server mainboard, the server mainboard and the main chip carry out PCIE data communication; a plurality of IO ports of the main chip are respectively connected with a serial port and a parallel port and are used for outputting converted serial port signals and parallel port signals; and the control module is connected between the configuration interface of the main chip and the golden finger and is used for configuring the conversion mode of the main chip according to an instruction signal of the server mainboard. According to the method and the device, double coverage of a PCIE signal on a serial port signal and parallel port signal conversion function can be realized, extra occupation of a PCIE slot and repeated plugging operation are avoided, the utilization rate of the PCIE slot is effectively improved, the operation convenience is enhanced, and the cost of the whole machine is effectively reduced.

Description

technical field [0001] The present application relates to the field of electronic technology, and in particular, to a conversion circuit between a PCIE interface and a serial port and a parallel port. Background technique [0002] Now the country is paying more and more attention to the development of domestic chips, but in some application fields it is still in a blank period, and there are no related chips and application products. In this case, it is particularly important to develop domestic chips and corresponding products. [0003] Serial or parallel port conversion circuits based on the PCIE communication protocol are often used in servers and other equipment. But the current product can only realize the conversion of serial port, or the conversion of parallel port. If the customer has requirements for the serial port and parallel port functions, the conversion circuit needs to be replaced by artificial plugging; when the conversion between the serial port and the pa...

AI Technical Summary

Problems solved by technology

In this way, the utilization rate of the PCIE slot is reduced, and other functional boards may not be compatible at the same time, and the cost of the whole machine will increase accordingly

In serious cases, it may even result in cancellation of orders for server products that cannot meet customer functional requirements at the same time, resulting in heavy losses

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