CN111522405A - Mainboard integrating multifunctional TYPE-C interface - Google Patents

Abstract

The invention discloses a mainboard integrated with a multifunctional TYPE-C interface, comprising a main control unit, a data function switching unit, a data distribution unit, a data switching unit, a power conversion unit, and a touch frame; the data function switching unit, the data distribution unit The unit, the data switching unit, and the power conversion unit are all connected with the TYPE-C interface, the data function switching unit, the data switching unit, and the touch frame are respectively connected with the main control unit, and the data function switching unit is connected with the data distribution unit and the data switching unit. The unit and the power conversion unit are connected; the touch frame is also connected with the data switching unit. The invention can realize 4K audio and video transmission, USB3.0 and USB2.0, charging, touch following and USB Device device following functions by connecting a TYPE-C line; reducing wire connection, reducing use cost and improving use efficiency.

Description

Mainboard with integrated multi-function TYPE-C interface

technical field

The invention belongs to the technical field of electronic equipment, and particularly relates to a mainboard integrating a multifunctional TYPE-C interface.

Background technique

In recent years, the TYPE-C interface has no distinction between positive and negative insertion, the interface is small, the bandwidth is high, and the characteristics of fast charging make it have a better user experience than other interfaces. Most of the monitors currently on the market that support the TYPE-C interface only support 4K audio and video transmission and power supply functions. However, with the rapid development of touch all-in-one PCs/touch monitors in the field of conferences and education, touch follow and USB Device follow functions are becoming more and more important. These two functions can be integrated through the TYPE-C interface; people usually A docking station will be purchased to achieve multi-functional expansion of a computer with a TYPE-C interface, but a lot of cables are still required to connect to the monitor. Therefore, the integrated multi-function TYPE-C interface is on the touch all-in-one computer/touch monitor motherboard, and the multi-function expansion of the touch all-in-one computer/touch monitor is required. Only one TYPE-C interface is required externally, eliminating the need for other interfaces and wires. It will greatly improve the user experience.

Especially the touch follow function, you can perform precise touch operation on the computer through the touch box. On a computer without a TYPE-C interface, an HDMI cable is required for audio and video transmission, and then an A/B port USB cable can be connected. Computer touch operation. On a computer with a TYPE-C interface, a TYPE-C cable connection can realize touch operation while transmitting 4K audio and video. Future computers will provide fewer and fewer types of external interfaces. For example, the current Apple MacBook Pro has only two TYPE-C interfaces.

SUMMARY OF THE INVENTION

In view of this, the main purpose of the present invention is to provide a mainboard with integrated multi-function TYPE-C interface.

In order to achieve the above object, the technical scheme of the present invention is achieved in this way:

An embodiment of the present invention provides a mainboard integrating a multi-function TYPE-C interface, including a main control unit, a data function switching unit, a data distribution unit, a data switching unit, a power conversion unit, and a USB touch frame;

The main control unit is used to receive audio and video data for output; it is also used to receive touch raw data fed back by the touch frame, and determine coordinate data according to the touch raw data and send it to the touch frame;

The data function switching unit is used for judging the positive and negative insertion of the plug of the TYPE-C interface according to the CC data line, and then controls the data distribution unit to carry out the routing of audio and video data through the I2C control signal and outputs the audio and video data to the main control unit; To control the power conversion unit to supply power to the TYPE-C interface through the control signal;

The data distribution unit is used to output the audio and video data to the main control unit by routing the audio and video data after receiving the I2C control signal of the data function switching unit;

The data switching unit is used to communicate the touch feedback of the connected touch frame, the data reading of the USB storage device and/or the follow-up feedback of the USB storage device with the TYPE-C interface;

The power conversion unit is used to supply power to the TYPE-C interface after receiving the GPIO control signal;

The touch frame is used to feed back the original touch data to the main control unit, and then communicate the coordinate data fed back by the main control unit with the TYPE-C interface through the data switching unit.

In the above solution, a USB hub is also included for connecting to the touch frame and/or the USB storage device.

In the above scheme, it also includes a DP to HDMI unit;

The data distribution unit is used to distribute the audio and video data to the DP to HDMI unit;

The DP to HDMI unit is used to convert the audio and video data into a signal in HDMI format and output it to the HDMI IN interface of the main control chip.

In the above scheme, the data distribution unit is specifically used for exchanging USB 3.0 data by using Rx/Tx line according to the data type communicated by the data function switching unit and the TYPE-C interface;

The data switching unit is specifically used to communicate with the TYPE-C interface through the D+/D- line during the touch feedback of the connected touch frame, and read the data of the USB storage device as a USB2.0 storage device through the D+/D- line. The D- line communicates with the TYPE-C interface, and the following feedback of the USB storage device is communicated with the TYPE-C interface through the D+/D- line.

The embodiment of the present invention also provides a mainboard integrating a multi-function TYPE-C interface, including a main control unit, a data function switching unit, a data distribution unit, a data switching unit, a power conversion unit, and a touch frame; the data function switching unit, The data distribution unit, the data switching unit and the power conversion unit are all connected with the TYPE-C interface, the data function switching unit, the data switching unit and the touch box are respectively connected with the main control unit, and the data function switching unit is connected with the data distribution unit, The data switching unit and the power conversion unit are connected; the touch frame is also connected with the data switching unit.

In the above solution, a USB hub is also included, the touch frame and/or the USB storage device are connected to the USB hub, and the USB hub is connected to the data switching unit.

In the above solution, a DP to HDMI unit is also included, one of the data distribution units is connected to the HDMI IN interface of the main control chip via the DP to HDMI unit, and the other is connected to the USB3.0 HOST of the main control chip.

In the above solution, the power conversion unit supplies power to the TYPE-C interface through the MOS chip; the data function switching unit controls the voltage and current of the communication between the MOS chip and the TYPE-C interface through the GIPO control signal, and controls the power conversion through the I2C control signal. unit.

Compared with the prior art, the present invention can realize the functions of 4K audio and video transmission, USB3.0 and USB2.0, charging, touch following and USB Device device following by connecting a TYPE-C wire; reducing wire connection and reducing usage cost and improve efficiency.

Description of drawings

1 is a schematic diagram of the connection of a mainboard integrating a multi-function TYPE-C interface according to an embodiment of the present invention;

2 is a connection block diagram of a mainboard integrating a multi-function TYPE-C interface according to an embodiment of the present invention;

FIG. 3 is a circuit diagram of a mainboard integrating a multi-function TYPE-C interface according to an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

An embodiment of the present invention provides a mainboard integrating a multi-function TYPE-C interface, as shown in Figures 1 and 2, including a main control unit 1, a data function switching unit 2, a data distribution unit 3, a data switching unit 4, and a power conversion unit 5. USB touch frame 6;

The main control unit 1 is used to receive audio and video data for output; it is also used to receive the touch raw data fed back by the touch frame 6, and determine the coordinate data according to the touch raw data and send it to the touch frame 6;

Described data function switching unit 2 is used for judging that the plug of the TYPE-C interface is inserted forward and backward according to the CC data line, and controls the data distribution unit 3 to carry out the routing of audio and video data through the I2C control signal to output audio and video data to the main control unit 1; It is also used to control the power conversion unit 5 to supply power to the TYPE-C interface through the control signal;

The data distribution unit 3 is used to output the audio and video data to the main control unit 1 after receiving the I2C control signal of the data function switching unit 2;

The data switching unit 4 is used to communicate the touch feedback of the connected touch frame 6, the data reading of the USB storage device and/or the follow-up feedback of the USB storage device with the TYPE-C interface;

The power conversion unit 5 is used to supply power to the TYPE-C interface after receiving the GPIO control signal;

The touch frame 6 is used to feed back the original touch data to the main control unit 1 , and then communicate the coordinate data fed back by the main control unit 1 with the TYPE-C interface through the data switching unit 4 .

Further, a USB hub 7 is also included for connecting to the touch frame 6 and/or a USB storage device.

Further, also include DP to HDMI unit 8;

The data distribution unit 3 is used to distribute the audio and video data to the DP to HDMI unit 8;

The DP to HDMI unit 8 is used to convert the audio and video data into a signal in HDMI format and output it to the HDMI IN 11 interface of the main control chip 1 .

The data distribution unit 3 is specifically configured to use the Rx/Tx line to exchange USB 3.0 data according to the data type that the data function switching unit 3 communicates with the TYPE-C interface;

The data switching unit 4 is specifically used to communicate with the TYPE-C interface through the D+/D- line during the touch feedback of the connected touch frame 6, and read the data of the USB storage device as a USB2.0 storage device through the D+/D- line. The /D- line communicates with the TYPE-C interface, and the follow-up feedback of the USB storage device communicates with the TYPE-C interface through the D+/D- line.

An embodiment of the present invention also provides a mainboard integrating a multi-function TYPE-C interface, as shown in FIG. , touch frame 6; the data function switching unit 2, data distribution unit 3, data switching unit 4, and power conversion unit 5 are all connected to the TYPE-C interface, and the data function switching unit 2, data switching unit 4, touch frame 6 are respectively connected with the main control unit 1 , the data distribution unit 3 is respectively connected with the data function switching unit 2 , the data switching unit 4 , and the power conversion unit 5 ; the touch frame 6 is also connected with the data switching unit 4 .

Further, a USB hub 7 is also included, the touch frame 6 and/or the USB storage device are connected to the USB hub 7 , and the USB hub 7 is connected to the data switching unit 4 .

Further, it also includes a DP to HDMI unit 8, one of the data distribution unit 3 is connected to the HDMI IN 11 interface of the main control chip 1 via the DP to HDMI unit 8, and the other is connected to the USB3.0 HOST12 of the main control chip 1.

The power conversion unit 5 supplies power to the TYPE-C interface through the MOS chip 9; the data function switching unit 2 controls the voltage and current of the communication between the MOS chip 9 and the TYPE-C interface through the GIPO control signal, and controls the power conversion through the I2C control signal. Unit 5.

The invention no longer needs to purchase a TYPE-C docking station or a single-function interface adapter separately, and a TYPE-C cable is connected to a computer with a TYPE-C interface (Apple MacBook Pro), which can realize 4K/60Hz video display, eliminating the need for With a USB touch cable, you can achieve touch tracking and USB device device tracking, eliminating the need to connect the charger, and the display provides the computer with up to 20V/3A, 60W of power to charge. This TYPE-C interface can also be connected to a USB2.0/USB3.0 USB device for the display board to recognize and read.

For audio and video transmission functions, the TYPE-C interface realizes up to 20160P/60Hz audio and video transmission through two sets of Rx/Tx lines in the interface, as shown in the DP IN part of Figure 2, the PD3.0 Control chip judges according to the CC data line After the positive and negative insertion, the Switch chip is controlled through the I2C protocol for data routing (Data Role), and the data is then transferred to the HDMI chip through DP, and the 4K60Hz HDMI signal can be output to the HDMI receiving unit of the motherboard chip, and then the picture is displayed on the screen. An external HDMI signal cable is required.

For the power transmission function, it is integrated on the TYPE-C interface of the motherboard. To supply power to the outside, the role is Source, which supplies power through Vbus. As shown in the VBUS part of Figure 3, the power supply is directly powered by the power board, and no external power supply is required; according to the allowable charging power of the connected computer, DC TO DC supplies power to the MOS chip, and the PD3.0 Control chip controls the MOS chip and the MOS chip through the GPIO port. The TYPE-C interface communicates up to 20V/3A 60W power supply, so as to charge the device connected to the TYPE-C interface, ensuring that the device can still maintain the charging state without connecting the power adapter.

For the touch-following function, the touch frame 6 adopts separate hardware or can be a display with integrated touch function. The feedback of touch-following communicates with the TYPE-C interface through the D+/D- line. influences. When the source is switched to the TYPE-C interface, the PD3.0 Control chip controls the switching of the USB2.0 SWITCH chip through the GPIO port, and the computer can recognize the touch frame 6 and then respond to the touch.

The process of responding to a touch is as follows:

1. When there is a touch, the original data collected by the touch box 6 cannot be used as X, Y coordinate data.

2. The touch box sends the original data to the main control chip of the display, calculates the corresponding X, Y coordinate data through the algorithm KO, and then returns the data to the touch box 6.

3. Touch the box and then output the X, Y coordinate data to the TYPE-C interface (that is, feedback to the computer);

4. The computer responds to touch.

For the USB Device device follow function, the principle of USB Device device follow and touch follow is the same. As shown in the HS part of Figure 3, the USB2.0HUB is connected to the 2.0 USB Device device, and the computer connected to the TYPE-C interface can recognize and read the USB device. Device device. You can also connect other types of USB2.0 devices for the computer to recognize.

For the USB3.0 read and write function, as shown in the SS IN part of Figure 3, the PD3.0 Control chip confirms that the USB3.0 device is inserted through the PD protocol, and then controls the data switching Switch chip routing to choose which Rx/Tx to go. data transfer. After the motherboard recognizes the USB Device device, it can read and write the USB Device device at a speed of 3.0.

The main board of the present invention can be applied to devices such as displays or TV boxes.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (8)

1. A mainboard integrated with a multifunctional TYPE-C interface is characterized by comprising a main control unit, a data function switching unit, a data distribution unit, a data switching unit, a power supply conversion unit and a USB touch frame;

the main control unit is used for receiving and outputting audio and video data; the touch frame is also used for receiving touch original data fed back by the touch frame, determining coordinate data according to the touch original data and then sending the coordinate data to the touch frame;

the data function switching unit is used for judging whether the plug of the TYPE-C interface is plugged or not according to the CC data line and then controlling the data distribution unit to route the audio and video data to the main control unit through the I2C control signal to output the audio and video data to the main control unit; the power conversion unit is also used for controlling the power supply to the TYPE-C interface through the control signal;

the data distribution unit is used for outputting the audio and video data to the main control unit by the route of the audio and video data after receiving the I2C control signal of the data function switching unit;

the data switching unit is used for communicating the touch feedback of the accessed touch frame, the data reading of the USB storage device and/or the following feedback of the USB storage device with the TYPE-C interface;

the power supply conversion unit is used for supplying power to the TYPE-C interface after receiving the GPIO control signal;

the touch frame is used for feeding back touch original data to the main control unit and communicating coordinate data fed back by the main control unit with the TYPE-C interface through the data switching unit.

2. The motherboard integrated with a multifunctional TYPE-C interface of claim 1, further comprising a USB hub for accessing a touch frame and/or a USB memory device.

3. The motherboard integrated with a multifunctional TYPE-C interface according to claim 1 or 2, further comprising a DP to HDMI unit;

the data distribution unit is used for distributing the audio and video data to the DP-to-HDMI unit;

and the DP-to-HDMI unit is used for converting the audio and video data into signals in an HDMI format and outputting the signals to an HDMIIN interface of the main control chip.

4. The motherboard with an integrated multifunctional TYPE-C interface according to claim 3, wherein the data distribution unit is specifically configured to exchange USB3.0 data using an Rx/Tx line according to a data TYPE of the data function switching unit communicating with the TYPE-C interface;

the data switching unit is specifically used for communicating with a TYPE-C interface through a D +/D-line during touch feedback of an accessed touch frame, reading data of a storage device with USB storage device being USB2.0 through the D +/D-line and communicating with the TYPE-C interface, and communicating with the following feedback of the USB storage device through the D +/D-line and the TYPE-C interface.

5. A mainboard integrated with a multifunctional TYPE-C interface is characterized by comprising a main control unit, a data function switching unit, a data distribution unit, a data switching unit, a power supply conversion unit and a touch frame; the data function switching unit, the data distribution unit, the data switching unit and the power conversion unit are all connected with a TYPE-C interface, the data function switching unit, the data switching unit and the touch frame are respectively connected with the main control unit, and the data function switching unit is connected with the data distribution unit, the data switching unit and the power conversion unit; the touch frame is also connected with the data switching unit.

6. The motherboard with an integrated multifunctional TYPE-C interface of claim 6, further comprising a USB hub, wherein the touch frame and/or the USB storage device is connected with the USB hub, and the USB hub is connected with the data switching unit.

7. The main board of claim 6 or 7, further comprising a DP-to-HDMI unit, wherein one path of the data distribution unit is connected to the HDMI IN interface of the main control chip via the DP-to-HDMI unit, and the other path is connected to the USB3.0HOST of the main control chip.

8. The motherboard integrated with a multifunctional TYPE-C interface of claim 8, wherein the power conversion unit supplies power to the TYPE-C interface through a MOS chip; the data function switching unit controls the voltage and the current of the MOS chip and the TYPE-C interface communication through a GIPO control signal, and controls the power supply switching unit through an I2C control signal.

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