A low cost gateway that outputs three different ethernet interfaces

Abstract

The utility model discloses a low -cost gateway of output three different ethernet interfaces, including built -in ethernet switch's SOC module, bridging module, external converter module, external converter module and built -in ethernet switch's SOC module's partial bus interface electricity is connected, is used for according to SOC module output's bus interface difference, realizes the demand of various ethernet interfaces, bridging module and built -in ethernet switch's SOC module's PCIE bus interface electricity is connected, is used for converting SOC module's PCIE interface into RGMII interface, again through the electricity connection of external converter module realizes output one way ethernet interface, built -in ethernet switch's SOC module is used for through the output GPIO signal control external converter work, the utility model discloses having adopted the SOC module with built -in ethernet switch function, external converter module, and SOC module passes through simple GPIO signal control converter work, has realized the function that gateway needs.

Description

Technical Field

[0001] This utility model relates to a low-cost gateway, and more particularly to a low-cost gateway that outputs three different Ethernet interfaces. Background Technology

[0002] Existing gateway boxes such as Figure 1 As shown, the main module circuit includes a SOC module and a switch module. The switch module has a built-in converter module. The supplier has done most of the functional integration work. Only one set of SPI control signals and three sets of buses need to be output by the SOC to meet the requirements of the three different types of Ethernet interfaces required by the gateway.

[0003] The Ethernet switch module circuit used in the existing gateway box design technology is powerful, has a simple peripheral circuit design, and is expensive. In today's environment where car manufacturers have strict cost requirements, the price of the product is beyond the acceptable range for car manufacturers.

[0004] Existing technical solutions rely on the functional integration of chip suppliers, which makes the system design simple. However, the higher the chip integration, the more expensive the chip becomes, which cannot meet the current market's demand for low cost in the face of fierce competition. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technology and provide a low-cost gateway that outputs three different Ethernet interfaces. It adopts a SOC module with built-in Ethernet switch and an external converter module. The SOC module controls the converter through simple GPIO signals to realize the functions required by the gateway. At the same time, a small and single-function bridging module circuit is used to convert the PCIE interface of the SOC module into an RGMII interface, and then the Ethernet physical layer converter module is used to output one Ethernet interface, thereby reducing the overall cost.

[0006] The purpose of this utility model is achieved as follows: A low-cost gateway that outputs three different Ethernet interfaces, including a SOC module with a built-in Ethernet switch, a bridging module, and an external converter module;

[0007] The external converter module is electrically connected to part of the bus interface of the SOC module with built-in Ethernet switch, and is used to realize the needs of multiple Ethernet interfaces according to the different bus interfaces output by the SOC module.

[0008] The bridging module is electrically connected to the PCIE bus interface of the SOC module with a built-in Ethernet switch to convert the PCIE interface of the SOC module into an RGMII interface; and then outputs an Ethernet interface through an electrical connection with an external converter module.

[0009] The SOC module with built-in Ethernet switch is used to control the operation of the external converter by outputting GPIO signals.

[0010] Compared with the prior art, the advantages of this utility model using the above technical solution are as follows: The gateway box of this utility model adopts a SOC module with built-in Ethernet switch function and an external converter module. Since the selected SOC has different configurable output bus interfaces, including PCIE bus interface, MII bus interface, and SGMII bus interface, the external converter module needs to be selected according to the bus interface type. The SOC module controls the converter's operation through simple GPIO signals, thus achieving the required functions of the gateway. Because the selected SOC lacks one RGMII bus interface but has a PCIE bus interface available, a bridge module is used to achieve bus interface conversion. The total number of modules in this utility model is greater than that of the original solution. Figure 1 However, each module is relatively inexpensive, which reduces the overall cost of the device; it also meets the requirements of the gateway box for three Ethernet interfaces (including 100Base-T1, 100Base-TX, and 1000Base-T1).

[0011] Furthermore, the SOC module of the Ethernet switch includes a PCIE bus interface, a MII bus interface, and an SGMII bus interface.

[0012] Furthermore, the external converter module includes converter one, converter two, and converter three.

[0013] Furthermore, the SOC module with the built-in Ethernet switch is electrically connected to the bridge module via a PCIE bus interface; the bridge module is electrically connected to converter one via an RGMII bus interface; and converter one is electrically connected to Ethernet interface one.

[0014] Furthermore, the SOC module with the built-in Ethernet switch is electrically connected to converter two via the MII bus interface; converter two is electrically connected to Ethernet interface two.

[0015] Furthermore, the SOC module with the built-in Ethernet switch is electrically connected to the converter via the SGMII bus interface; the converter is electrically connected to the Ethernet interface.

[0016] Furthermore, the Ethernet interface is a 100Base-T1 interface.

[0017] Furthermore, the second Ethernet interface is a 100Base-TX interface.

[0018] Furthermore, the Ethernet interface three is a 1000Base-T1 interface.

[0019] Furthermore, the GPIO interface of the SOC module with built-in Ethernet switch is electrically connected to the GPIO interface of the bridging module, the GPIO interface of converter two, and the GPIO interface of converter three, respectively; the interface of the bridging module that outputs GPIO control signals is electrically connected to the GPIO interface of converter one. Attached Figure Description

[0020] Figure 1 Block diagram of existing technology system.

[0021] Figure 2 This utility model system configuration block diagram.

[0022] Figure 3 The schematic diagram of the SOC module output PCIE and GPIO circuits of this utility model.

[0023] Figure 4 The circuit diagram of the bridging module of this utility model.

[0024] Figure 5 The circuit schematic diagram of the converter to 100Base-T1 interface of this utility model.

[0025] Figure 6 The schematic diagram of the output MII and GPIO circuits of this utility model SOC module.

[0026] Figure 7 The circuit schematic diagram of the converter two to 100Base-TX interface two of this utility model.

[0027] Figure 8 This utility model presents the schematic diagram of the SGMII and GPIO output circuits of the SOC module.

[0028] Figure 9 The circuit diagram of the converter three to 1000Base-T1 interface three of this utility model.

[0029] Specifically, 1 connects to the PCIe interface pin of the bridging module; 2 connects to the GPIO interface pin of the bridging module; 3 connects to the PCIe interface pin of the SOC module; 4 connects to the GPIO interface pin of the SOC module; 5 connects to the RGMII interface pin of converter one; 6 connects to the GPIO control signal interface pin of converter one; 7 connects to the GPIO control signal pin of the bridging module; 8 connects to the RGMII interface pin of the bridging module; 9 connects to Ethernet interface one; 10 connects to the MII interface pin of converter two; 11 connects to the GPIO interface pin of converter two; 12 connects to the MII interface pin of the SOC module; 13 connects to the GPIO interface pin of the SOC module; 14 connects to Ethernet interface two; 15 connects to the SGMII interface pin of converter three; 16 connects to the GPIO interface pin of converter three; 17 connects to the SGMII interface pin of the SOC module; 18 connects to the GPIO interface pin of the SOC module; and 19 connects to Ethernet interface three. Detailed Implementation

[0030] like Figure 2 The diagram shows a low-cost gateway that outputs three different Ethernet interfaces, including a SOC module with a built-in Ethernet switch, a bridging module, and an external converter module.

[0031] The external converter module is electrically connected to part of the bus interface of the SOC module with built-in Ethernet switch, so as to realize the needs of multiple Ethernet interfaces according to the different bus interfaces output by the SOC module.

[0032] The bridging module is electrically connected to the PCIE bus interface of the SOC module with a built-in Ethernet switch to convert the PCIE interface of the SOC module into an RGMII interface; and then outputs an Ethernet interface through an electrical connection with an external converter module.

[0033] The SOC module with a built-in Ethernet switch is used to control the operation of the external converter by outputting GPIO signals.

[0034] The Ethernet switch's SOC module includes a PCIE bus interface, a MII bus interface, and an SGMII bus interface; the external converter module includes Converter 1, Converter 2, and Converter 3.

[0035] like Figure 3 , Figure 4 and Figure 5 As shown, the SOC module U1 with built-in Ethernet switch is connected to the corresponding PICE bus interface (pins 27, 28, 30, 32, 36, 37) of the bridge module U2 through the PCIE bus interface (PHY4_PCIE_CLK_P, PHY4_PCIE_CLK_N, PHY4_PCIE_TX_P, PHY4_PCIE_TX_N, PHY4_PCIE_RX_P, PHY4_PCIE_RX_N).

[0036] The bridging module U2 is electrically connected to pins 28-33, 23-27, and 15 of converter U3 via the RGMII bus interface (pins 4, 5, 6, 8, 10, 11 and pins 13-18); converter U3 is electrically connected to Ethernet interface 1; Ethernet interface 1 is a 100Base-T1 interface.

[0037] The GPIO interfaces (7431_RESET, PCIE0_CLKREQ, PCIE0_PERST, and PCIE0_WAKE_1N) of the SOC module U1 with built-in Ethernet switch are connected to the GPIO interfaces (pins 66-67 and pin 44) of the bridge module U2; the interfaces (pins 41, 43, 62, and 64) of the bridge module U2 that output GPIO control signals are connected to the GPIO interfaces (pins 1, 2, 3, and pin 38) of the converter U3.

[0038] like Figure 6 , Figure 7 As shown, the SOC module U1 with built-in Ethernet switch is connected to converter U4 (pins 2-7, 31, 32, 36-39) via the MII bus interface; converter U4 is electrically connected to Ethernet interface 2, which is a 100Base-TX interface; the GPIO interface of the SOC module U1 with built-in Ethernet switch is connected to the GPIO interface of converter U4 (pins 23, 24, 25).

[0039] like Figure 8 , Figure 9 As shown, the SOC module U1 with built-in Ethernet switch is connected to converter U5 (pins 1, 2, 3, 4) via the SGMII bus interface; converter U5 is electrically connected to Ethernet interface 3, which is a 1000Base-T1 interface; the GPIO interface of the SOC module U1 with built-in Ethernet switch is electrically connected to the GPIO interface of converter U5 (pins 37, 38, 39, 40).

[0040] This invention employs a SOC module with a built-in Ethernet switch and an external converter module. Because the selected SOC has different configurable output bus interfaces, including PCIe bus interfaces, etc. Figure 3 MII bus interface such as Figure 6 SGMII bus interface such as Figure 8 The converter module needs to be selected based on the bus interface type, including... Figure 5 , Figure 7 , Figure 9There are three types. The SOC module controls the converter's operation through simple GPIO signals, thus achieving the functions required by the gateway. Since the selected SOC lacks one RGMII bus interface but has a PCIe bus interface available, a bridge module is used... Figure 4 The bus interface conversion was implemented, and the total number of modules is greater than the original solution. Figure 1 However, the gateway box uses a SOC module with built-in Ethernet switch function but no Ethernet physical layer converter. Since it only has a switch function, its cost is almost the same as that of a regular SOC module. It can not only realize the switch function, but also does not increase the cost. It not only meets the requirements of the three Ethernet interfaces of the gateway box (including 100Base-T1, 100Base-TX, and 1000Base-T1), but also realizes the requirement of reducing the overall cost.

[0041] Original price: Switch module ¥85;

[0042] The price of this utility model is: bridging module (22￥) + converter 1 (5￥) + converter 2 (8￥) + converter 3 (8￥) = 45￥; the above prices may vary slightly depending on the size of the purchase demand.

[0043] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A low-cost gateway that outputs three different Ethernet interfaces, characterized in that, This includes SOC modules with built-in Ethernet switches, bridging modules, and external converter modules; The external converter module is electrically connected to part of the bus interface of the SOC module with built-in Ethernet switch, and is used to realize the needs of multiple Ethernet interfaces according to the different bus interfaces output by the SOC module. The bridging module is electrically connected to the PCIE bus interface of the SOC module with a built-in Ethernet switch to convert the PCIE interface of the SOC module into an RGMII interface; and then outputs an Ethernet interface through an electrical connection with an external converter module. The SOC module with built-in Ethernet switch is used to control the operation of the external converter by outputting GPIO signals.

2. A low-cost gateway with three different Ethernet interfaces as described in claim 1, characterized in that, The SOC module of the Ethernet switch includes a PCIE bus interface, a MII bus interface, and an SGMII bus interface.

3. A low-cost gateway with three different Ethernet interfaces as described in claim 2, characterized in that, The external converter module includes converter one, converter two, and converter three.

4. A low-cost gateway with three different Ethernet interfaces as described in claim 3, characterized in that, The SOC module with built-in Ethernet switch is electrically connected to the bridging module via a PCIE bus interface; the bridging module is electrically connected to converter one via an RGMII bus interface; and converter one is electrically connected to Ethernet interface one.

5. A low-cost gateway with three different Ethernet interfaces as described in claim 3, characterized in that, The SOC module with built-in Ethernet switch is electrically connected to converter two via MII bus interface; converter two is electrically connected to Ethernet interface two.

6. A low-cost gateway with three different Ethernet interfaces as described in claim 3, characterized in that, The SOC module with built-in Ethernet switch is electrically connected to the converter via the SGMII bus interface; the converter is electrically connected to the Ethernet interface.

7. A low-cost gateway with three different Ethernet interfaces as described in claim 4, characterized in that, The Ethernet interface is a 100Base-T1 interface.

8. A low-cost gateway with three different Ethernet interfaces as described in claim 5, characterized in that, The second Ethernet interface is a 100Base-TX interface.

9. A low-cost gateway with three different Ethernet interfaces as described in claim 6, characterized in that, The Ethernet interface three is a 1000Base-T1 interface.

10. A low-cost gateway with three different Ethernet interfaces as described in claim 1, characterized in that, The GPIO interface of the SOC module with built-in Ethernet switch is electrically connected to the GPIO interface of the bridging module, the GPIO interface of converter two, and the GPIO interface of converter three, respectively; the interface of the bridging module that outputs GPIO control signals is electrically connected to the GPIO interface of converter one.

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