CN216871114U - 10Mbps multi-protocol serial port card of PMC specification - Google Patents

Abstract

The utility model provides a 10Mbps multi-protocol serial port card with a PMC specification, which comprises the following components: the integrated circuit board provides 8 independent serial ports, the PCIe-to-UART bridge is used as a core processing device to realize conversion between the PCIe bus and the UART, and the complex programmable logic device realizes a GPIO interface. And the complex programmable logic device realizes overall control. The RS-422/RS-485/RS-232 multi-protocol transceiver realizes 8-channel 10M RS-422/RS-485/RS-232 serial port communication; the performance and the function of the board card can meet the requirements of the current market.

Description

10Mbps multi-protocol serial port card of PMC specification

Technical Field

The utility model relates to the fields of banking, finance, securities, telecommunication, industrial control and the like, is an important hardware component of a computer multi-user communication control system, and particularly relates to a 10Mbps multi-protocol serial port card bus communication board card with a PMC specification.

Background

Universal Asynchronous Receiver/Transmitter, commonly referred to as UART. It converts data to be transmitted between serial communication and parallel communication. As a chip for converting a parallel input signal into a serial output signal, the UART is usually integrated into a connection of other communication interfaces.

With the development of the banking, finance, security, telecommunication and industrial control industries, the requirements of serial port communication speed, interface quantity and type are increasing day by day, and the traditional single-protocol serial port bus of 115200bps is difficult to meet the development requirements of systems. Therefore, it is necessary to develop a serial port card with higher speed, larger quantity and higher integration, an 8-channel multi-protocol serial port card with 10Mbps, and even a 16-channel multi-protocol serial port card with 10 Mbps. Therefore, the development of the 10Mbps multi-protocol serial port card has great significance.

Disclosure of Invention

In order to solve the requirements of the prior related field on the serial port transmission rate, the number of channels and the multi-protocol and meet the development requirement, the utility model provides a 10Mbps multi-protocol serial port card of a PMC specification. The board card adopts 8 independent serial ports to realize the communication electrical standard compatible with 10Mbps RS-422, RS-232 and RS-485. The PMC standard is designed, and the PMC standard can be applied to all PMC industrial control computers.

The 10Mbps multi-protocol serial port card of the PMC specification comprises: the system comprises a PCI bus interface, a PCI-to-PCIe bridge plate, a PCIe-to-UART bridge plate, a complex programmable logic device, an RS-422/RS-485/RS-232 multi-protocol transceiver, a power management module and a connector;

the PCI-to-PCIe bridge chip is connected with the PCIe bridge chip and the power management module, the PCIe-to-PCIe bridge chip is connected with the PCIe-to-UART bridge chip and the power management module, the PCIe-to-UART bridge chip is connected with the complex programmable logic device, the RS-422/RS-485/RS-232 multi-protocol transceiver and the power management module, the PCIe-to-UART bridge chip realizes the conversion between the PCI bus and the UART, and the complex programmable logic device realizes the GPIO interface;

the complex programmable logic device is connected with the PCIe-to-UART bridge chip, the RS-422/RS-485/RS-232 multi-protocol transceiver and the power management module to realize overall control;

and the RS-422/RS-485/RS-232 multi-protocol transceiver is connected with the connector, the complex programmable logic device, the PCIe-to-UART bridge piece and the power management module. 8 RS-422/RS-485/RS-232 multi-protocol transceivers realize 8-path 10M RS-422/RS-485/RS-232 serial port communication;

the power management module is connected with the PCI bus interface, the PCIe-to-UART bridge chip, the complex programmable logic device and the RS-422/RS-485/RS-232 multi-protocol transceiver and is used for providing required corresponding voltage for the 10Mbps multi-protocol serial port card of the PMC specification;

and the connector assembly is connected with the RS-422/RS-485/RS-232 multi-protocol transceiver and is a connector of an external UART interface of the 10Mbps multi-protocol serial port card with the PMC specification.

The RS-422/RS-485/RS-232 multi-protocol transceiver comprises: the device comprises a 10Mbps multi-protocol serial port transceiving module and a matching resistance switching module;

the RS-422/RS-485/RS-232 multi-protocol transceiver is connected with a PCIe-to-UART bridge chip, so that data receiving and sending of a 10Mbps multi-protocol serial port are realized;

the RS-422/RS-485/RS-232 multi-protocol transceiver consists of 8 groups of 10Mbps multi-protocol serial port transceiver modules and a matching resistance switching module and is used for realizing the data transceiving of 8-channel serial ports.

The beneficial effects of the utility model are: the 10Mbps multi-protocol serial port card with the PMC specification is designed into the PMC specification, the card provides 8 independent serial port channels, a PCIe-to-UART bridge chip is used as a core processing device, conversion between a PCIe bus and a UART is achieved, and a GPIO interface is achieved through a complex programmable logic device. And the complex programmable logic device realizes overall control. The RS-422/RS-485/RS-232 multi-protocol transceiver realizes 8-channel 10M RS-422/RS-485/RS-232 serial port communication; the performance and the function of the board card can meet the requirements of the current market.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

Fig. 1 is a structural block diagram of a 10Mbps multi-protocol serial port card in the PMC specification provided by the present invention.

Detailed Description

As shown in fig. 1, the present invention provides a block diagram of a 10Mbps multi-protocol serial port card in the PMC specification. The 10Mbps multi-protocol serial port card of the PMC specification comprises: the system comprises a PCI bus interface 11, a PCI-to-PCIe bridge plate 12, a PCIe-to-UART bridge plate 14, a complex programmable logic device 15, an RS-422/RS-485/RS-232 multi-protocol transceiver 16, a power management module 13 and a connector 17;

the PCI bus interface 11 is connected with a PCI-to-PCIe bridge plate 12 and a power management module 13, the PCI-to-PCIe bridge plate 12 is connected with a PCIe-to-UART bridge plate 14 and the power management module 13, the PCIe-to-UART bridge plate 14 is connected with a complex programmable logic device 15 and the power management module 13, the PCIe-to-UART bridge plate 14 realizes the conversion between the PCI bus and the UART, and the complex programmable logic device 15 realizes a GPIO interface;

the host interface is a PCI bus interface 11, and the PCIe-to-UART bridge chip 14 is realized by an XR17V358 bridge chip.

The complex programmable logic device 15 is connected with the PCIe-to-UART bridge chip 14, the RS-422/RS-485/RS-232 multi-protocol transceiver 16 and the power management module 13 to realize overall control.

The RS-422/RS-485/RS-232 multi-protocol transceiver 16 is connected with the connector 17, the complex programmable logic device 15, the PCIe-to-UART bridge piece 14 and the power management module 13 to realize level conversion and serial port signal output.

And the power management module 13 is connected with the PCI bus interface 11, the PCIe-to-UART bridge chip 14, the complex programmable logic device 15, the RS-422/RS-485/RS-232 multi-protocol transceiver 16 and used for providing various voltages required by the 10Mbps multi-protocol serial port card of the PMC specification.

The connector 17 is connected with the RS-422/RS-485/RS-232 multi-protocol transceiver 16 and is a connector of the serial port bus RS-422/RS-485/RS-232 multi-protocol transceiver 16 externally arranged on the 10Mbps multi-protocol serial port card with the PMC specification.

The utility model has the beneficial effects that: the 10Mbps multi-protocol serial port card with the PMC specification is designed into the PMC specification, the card provides 8 independent serial port channels, a PCIe-to-UART bridge chip is used as a core processing device, the conversion between a PCI bus and a UART is realized, and a GPIO interface is realized by a complex programmable logic device. And the complex programmable logic device realizes overall control. The RS-422/RS-485/RS-232 multi-protocol transceiver realizes 8-channel 10M RS-422/RS-485/RS-232 serial port communication; the performance and the function of the board card can meet the requirements of the current market.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the utility model without departing from the spirit and scope of the utility model.

Claims (2)

1. A10 Mbps multiprotocol serial port card of PMC specification which characterized in that:

the 10Mbps multi-protocol serial port card of the PMC specification comprises: the system comprises a PCI bus interface, a PCI-to-PCIe bridge plate, a PCIe-to-UART bridge plate, a complex programmable logic device, an RS-422/RS-485/RS-232 multi-protocol transceiver, a power management module and a connector;

the PCI-to-PCIe bridge chip is connected with the PCIe bridge chip and the power management module, the PCIe-to-PCIe bridge chip is connected with the PCIe-to-UART bridge chip and the power management module, the PCIe-to-UART bridge chip is connected with the complex programmable logic device, the RS-422/RS-485/RS-232 multi-protocol transceiver and the power management module, the PCIe-to-UART bridge chip realizes the conversion between the PCI bus and the UART, and the complex programmable logic device realizes the GPIO interface;

the complex programmable logic device is connected with the PCIe-to-UART bridge chip, the RS-422/RS-485/RS-232 multi-protocol transceiver and the power management module to realize overall control;

the RS-422/RS-485/RS-232 multi-protocol transceiver is connected with the connector, the complex programmable logic device, the PCIe-to-UART bridge piece and the power management module; 8 RS-422/RS-485/RS-232 multi-protocol transceivers realize 8-path 10M RS-422/RS-485/RS-232 serial port communication;

the power management module is connected with the PCI bus interface, the PCIe-to-UART bridge chip, the complex programmable logic device and the RS-422/RS-485/RS-232 multi-protocol transceiver and is used for providing required corresponding voltage for the 10Mbps multi-protocol serial port card of the PMC specification;

and the connector assembly is connected with the RS-422/RS-485/RS-232 multi-protocol transceiver and is a connector of an external UART interface of the 10Mbps multi-protocol serial port card with the PMC specification.

2. The 10Mbps multi-protocol serial port card of the PMC specification of claim 1, wherein:

the RS-422/RS-485/RS-232 multi-protocol transceiver comprises: the device comprises a 10Mbps multi-protocol serial port transceiving module and a matching resistance switching module;

the RS-422/RS-485/RS-232 multi-protocol transceiver is connected with a PCIe-to-UART bridge chip, so that data receiving and sending of a 10Mbps multi-protocol serial port are realized;

the RS-422/RS-485/RS-232 multi-protocol transceiver consists of 8 groups of 10Mbps multi-protocol serial port transceiver modules and a matching resistance switching module and is used for realizing the data transceiving of 8-channel serial ports.

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