CN219891654U

CN219891654U - PC module and electronic equipment

Info

Publication number: CN219891654U
Application number: CN202321306423.7U
Authority: CN
Inventors: 杨学涯; 吴进智; 孙乔; 邓世涛
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2023-05-25
Filing date: 2023-05-25
Publication date: 2023-10-24
Anticipated expiration: 2033-05-25

Abstract

The embodiment of the utility model discloses a PC module and electronic equipment, which comprises a connector, a signal switching circuit and a signal switching circuit, wherein the connector is connected with a third multiplexing pin of a central processing unit through a first multiplexing pin and connected with the static end of the signal switching circuit through a second multiplexing pin, and the connector comprises an external pin for being connected with the display equipment; at least two single pins of the central processing unit are respectively connected with one movable end of the signal switching circuit; the microprocessor is connected with the connector through a serial port pin, is connected with the controlled end of the signal switching circuit through a control pin and is used for controlling the connection state of the movable end and the static end according to the type of the signal which is accessed to the display equipment by the connector; the microprocessor is connected with the central processing unit through the function pin and is used for controlling the signal state of the function pin according to the signal type, and the central processing unit is used for sending corresponding audio and video signals through the first multiplexing pin and the second multiplexing pin according to the signal state, so that the problem of higher production cost of the PC module is solved, and the production cost of the PC module is reduced.

Description

PC module and electronic equipment

Technical Field

The embodiment of the utility model relates to the technical field of computer modules, in particular to a PC module and electronic equipment.

Background

With diversification of electronic devices, in order to expand service functions of the electronic devices, PC modules are generally used to expand service functions of the electronic devices.

In the PC module, the CPU normally supports HDMI signal or DP signal output in a native manner, when the PC module needs to be supported and HDMI signal and DP signal output are supported in a native manner, input and output pins corresponding to the HDMI signal and the DP signal are arranged in the PC module at the same time, so that the number of pins in the PC module is increased, the interface volume is increased, and the production cost of the PC module is high.

Disclosure of Invention

The embodiment of the utility model provides a PC module and electronic equipment, which can solve the problem of higher production cost of the PC module, reduce the production cost of the PC module and reduce the volume of the PC module.

The embodiment of the utility model provides a PC module, which comprises: the device comprises a connector, a central processing unit, a signal switching circuit and a microprocessor;

the connector is connected with a third multiplexing pin of the central processing unit through a first multiplexing pin, is connected with a static end of the signal switching circuit through a second multiplexing pin, and further comprises an external pin for accessing the display equipment;

at least two single pins of the central processing unit are respectively connected with one movable end of the signal switching circuit;

the microprocessor is connected with the connector through a serial port pin and is used for acquiring the signal type of display equipment accessed by the connector;

the microprocessor is connected with the controlled end of the signal switching circuit through a control pin and is used for controlling the connection state of the dynamic end and the static end according to the signal type;

the microprocessor is connected with the central processing unit through the function pins and is used for controlling the signal states of the function pins according to the signal types, and the central processing unit is used for sending corresponding audio and video signals through the first multiplexing pins and the second multiplexing pins according to the signal states.

The embodiment of the utility model also provides electronic equipment which comprises an intelligent flat plate and the PC module;

the intelligent tablet is connected with the connector of the PC module.

By adopting multiplexing pins in the PC module, the number of pins is reduced, the technical problem that the PC module generates higher is solved, and the production cost of the PC module is reduced based on the smaller number of pins. In addition, the number of pins is smaller, so that the volume of the PC module is reduced, and the production cost of the PC module is further reduced.

Drawings

FIG. 1 is a first schematic diagram of a PC module according to an embodiment of the present utility model;

fig. 2 is a second schematic diagram of a PC module according to an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Smart tablets and like display devices typically support plug-in PC modules (or OPS (Open Pluggable Specification) modules). The display signal of the PC module (or OPS module) is generally transmitted to a display device such as a smart tablet for display through an HDMI signal protocol or a DP signal protocol. In certain vendor-defined OPS module specifications, the OPS module supports both HDMI and DP interfaces with the smart tablet interface. At the point. In the PC module (or OPS module), the central processor typically supports HDMI signal or DP signal output natively, when support is needed. The PC module (or OPS module) is commonly in existence when it supports both HDMI signal and DP signal output. And the PC module (or the OPS module) is provided with input and output pins corresponding to the HDMI signal and the DP signal at the same time, so that the HDMI signal and the DP signal are caused. The number of pins in the PC module (or OPS module) increases, and the interface volume becomes large, resulting in. The production cost of the PC module (or OPS module) is high.

Based on the above, in order to solve the technical problem of higher production cost of the PC module, the embodiment of the utility model provides the PC module. Fig. 1 is a first schematic diagram of a PC module according to an embodiment of the present utility model, and referring to fig. 1, the PC module 1 includes a connector 11, a central processing unit 12, a signal switching circuit 13, and a microprocessor 14. The connector 11 is connected with a third multiplexing pin of the central processing unit 12 through a first multiplexing pin, the connector 11 is connected with a static end of the signal switching circuit 13 through a second multiplexing pin, and the connector 11 further comprises an external pin for accessing the display device. At least two individual pins of the cpu 12 are respectively connected to one active terminal of the signal switching circuit 13. The microprocessor 14 is connected with the connector 11 through a serial port pin, and is used for acquiring the signal type of the display device connected with the connector 11. The microprocessor 14 is connected with the controlled end of the signal switching circuit 13 through a control pin and is used for controlling the connection state of the dynamic end and the static end according to the signal type. The microprocessor 14 is connected to the central processing unit 12 through a functional pin, and is used for controlling the signal state of the functional pin according to the signal type, and the central processing unit 12 is used for sending corresponding audio and video signals through the first multiplexing pin and the second multiplexing pin according to the signal state. After receiving the audio and video signals through the first multiplexing pin and the second multiplexing pin, the connector 11 transmits the audio and video signals to the corresponding display device through the external pin. The embodiment of the utility model adjusts the hardware architecture, and obtains the PC module 1 capable of normally sending audio and video signals by adopting multiplexing pins and matching with the microprocessor 14, the central processing unit 12 and the signal switching circuit 13. By adopting multiplexing pins, the pin quantity in the PC module 1 is greatly reduced, so that the material investment for pin production is saved, and the production cost of the PC module 1 is further reduced.

The third multiplexing pin comprises a transmission multiplexing pin, a hot plug multiplexing pin and a clock multiplexing pin. The connector 11 is connected with a transmission multiplexing pin, a hot plug multiplexing pin and a clock multiplexing pin of the central processing unit 12 through a first multiplexing pin, wherein the transmission multiplexing pin is used for transmitting an eDP type audio/video signal, a DP type audio/video signal or an HDMI type audio/video signal, and the hot plug multiplexing pin is used for receiving a hot plug detection signal. The transmission multiplexing pins comprise an edp_tx0/dp_tx0/hdmi_tx2 multiplexing pin, an edp_tx1/dp_tx1/hdmi_tx1 multiplexing pin and an edp_tx2/dp_tx2/hdmi_tx0 multiplexing pin, and are used for transmitting an eDP type audio/video signal, a DP type audio/video signal or an HDMI type audio/video signal. The clock multiplexing pins include edp_tx3/dp_tx3/hdmi_clk multiplexing pins. The transmission multiplexing pins are used for transmitting the eDP type audio/video signals, the DP type audio/video signals or the HDMI type audio/video signals, which are all digital signals, and the signal transmission is different only in protocol, so that the pins for transmitting the eDP type audio/video signals, the DP type audio/video signals or the HDMI type audio/video signals can be multiplexed. When the connector 11 is connected to a corresponding display device through an external pin, the corresponding eDP type audio/video signal, DP type audio/video signal or HDMI type audio/video signal can be sent to the connector 11 through the transmission multiplexing pin only by performing protocol conversion through the central processing unit 12, so that the connector 11 can send the corresponding eDP type audio/video signal, DP type audio/video signal or HDMI type audio/video signal to the display device. For the above reasons, the edp_tx3/dp_tx3/hdmi_clk multiplexing pin can also realize multiplexing of an eDP type audio/video signal, a DP type audio/video signal, or an HDMI type audio/video signal. The hot plug multiplexing pins include edpd_hpd/dp_hpd/hdmi_hpd multiplexing pins. Referring to fig. 1, the cpu 12 obtains a hot plug detection signal through the hot plug multiplexing pin and the connector 11, so that the stability of the PC module 1 can be maintained according to the hot plug detection signal.

The second multiplexing pins include an edp_aux/dp_aux/hdmi_i2c multiplexing pin, and the unique pins include an edp_aux/dp_aux multiplexing pin and an hdmi_i2c pin. Based on the connection of the hdmi_i2c pin to the PCH chip 15 functional module in the cpu 12, the hdmi_i2c pin needs to be set independently of the edp_aux/dp_aux multiplexing pin, forming two separate pins. The edp_aux/dp_aux multiplexing pin and the hdmi_i2c pin are respectively connected to one dynamic terminal of the signal switching circuit 13, and the edp_aux/dp_aux multiplexing pin is illustratively connected to a first dynamic terminal of the signal switching circuit 13, and the hdmi_i2c pin is connected to a second dynamic terminal of the signal switching circuit 13. When the microprocessor 14 obtains the signal type of the display device accessed by the connector 11 through the serial port pin, it sends a control signal to the switching circuit to control which dynamic terminal is connected with the static terminal according to the signal type. The functional pins include one or more combinations of GPIO1 pins, GPIO2 pins, and BLON/PWM pins. Wherein the microprocessor 14 receives backlight control signals from the central processor 12 via the BLON/PWM pins, wherein the backlight control signals include a backlight on signal, a backlight off signal, and a backlight brightness value signal. When the BLON/PWM pin implements the BLON function, then the BLON/PWM pin is used to indicate a backlight on signal or a backlight off signal of the display device. When the BLON/PWM pin implements the PWM function, then the BLON/PWM pin is used to indicate a backlight luminance value signal for the display device. The microprocessor 14 outputs different signal states through the GPIO1 pin and the GPIO2 pin, and the central processing unit 12 can determine to output one of an eDP type audio/video signal, a DP type audio/video signal and an HDMI type audio/video signal according to the signal states output by the GPIO1 pin and the GPIO2 pin. It should be noted that the GPIO1 pin and the GPIO2 pin need to be set at the same time to realize the function of outputting different signal states. The serial port pin comprises a TX/RX serial port pin, and the serial port pin is used for acquiring a signal type of the display device to which the connector 11 is connected, and transmitting a backlight control signal received by the BLON/PWM pin of the microprocessor 14 to the connector 11, so that the connector 11 transmits the backlight control signal to the display device through an external pin to control a backlight switch and a brightness value of the display device.

The microprocessor 14 obtains the signal type of the display device accessed by the connector 11 through the serial port pin, and, for example, when the signal type of the display device accessed by the connector 11 is HDMI type, the microprocessor 14 controls the connection state of the dynamic end and the static end of the switching circuit according to the signal type based on the connection of the microprocessor 14 with the controlled end of the signal switching circuit through the control pin based on the micro-processing. Based on the HDMI type, the static end of the switching circuit is controlled to be connected to the second active end, and the second active end of the switching circuit is connected to the hdmi_i2c pin, so that the HDMI type signal received from the switching circuit can be transmitted to the central processor 12 through the hdmi_i2c pin. Meanwhile, the microprocessor 14 controls the signal states of the GPIO1 pin and the GPIO2 pin according to the signal types, and based on the signal types being HDMI types, assuming that the signal states corresponding to the HDMI types are GPIO1 pin output 0 and GPIO2 pin output 1, the microprocessor 14 controls the GPIO1 pin output 0 and GPIO2 pin output 1 to the central processor 12 according to the signal types, the central processor 12 determines that the corresponding signal types are HDMI types according to the signal states of the GPIO1 pin and the GPIO2 pin output received from the microprocessor 14, and sends the corresponding hdmi_i2c signal to the first multiplexing of the connector 11 through the edp_tx0/dp_tx0/hdmi_tx2 multiplexing pin, edp_tx1/dp_tx1/hdmi_tx1 multiplexing pin, edp_tx 2/hdmi_tx 3/hdmi_hdmi_tx_clk multiplexing pin hdmi_tx0 signal, hdmi_tx1 signal, hdmi_tx2 signal, hdmi_hdmi_tx 2 signal, and hdmi_clk signal, and sends the corresponding hdmi_i2c signal to the second multiplexing pin of the switch circuit through the switch circuit to connect the second multiplexing circuit to the second multiplexing terminal 11 through the switch circuit. The above data transmission process is only used for describing how to transmit various types of existing data based on the hardware architecture in the embodiment of the present utility model, and specific switching and detection can be implemented by corresponding hardware circuits, for example, a corresponding level signal is detected at a TX/RX serial port, and corresponding types of data transmission are implemented according to the existing data protocol through multiplexed pins. The protection of the embodiment of the utility model focuses on structural improvement, and the PC module 1 capable of normally transmitting audio and video signals is structurally obtained by adopting multiplexing pins and matching with the microprocessor 14, the central processing unit 12 and the signal switching circuit 13. By adopting multiplexing pins, the pin quantity in the PC module 1 is greatly reduced, so that the material investment for pin production is saved, and the production cost of the PC module 1 is further reduced.

Fig. 2 is a second schematic diagram of a PC module according to an embodiment of the present utility model, and referring to fig. 2, the PC module 1 includes a connector 11, a central processing unit 12, a signal switching circuit 13, a microprocessor 14 and a PCH chip 15. The connector 11 is connected with a transmission multiplexing pin and a clock multiplexing pin of the central processing unit 12 through a first multiplexing pin, the connector 11 is connected with a static end of the signal switching circuit 13 through a second multiplexing pin, and the connector 11 further comprises an external pin for accessing the display device. The central processing unit 12 is connected with one dynamic end of the signal switching circuit 13 through an edp_aux/dp_aux multiplexing pin, and the central processing unit 12 is connected with the PCH chip 15. The PCH chip 15 is connected with the first multiplexing pin of the connector 11 through a hot plug multiplexing pin, the PCH chip 15 obtains a hot plug detection signal of the display device connected with the connector 11 through the hot plug multiplexing pin, and the PCH chip 15 transmits the obtained hot plug detection signal to the central processing unit 12 so that the central processing unit 12 can maintain the stability of the PC module 1 according to the hot plug detection signal. The PCH chip 15 is connected to a dynamic terminal of the signal switching circuit 13 through an hdmi_i2c pin. The microprocessor 14 is connected with the PCH chip 15 through a functional pin, and is used for controlling the signal state of the functional pin according to the signal type, the PCH chip 15 is used for sending the signal state to the central processing unit 12, and the central processing unit 12 is used for sending corresponding audio and video signals through a first multiplexing pin and a second multiplexing pin according to the signal state. The microprocessor 14 is connected with the connector 11 through a serial port pin, and is used for acquiring the signal type of the display device connected with the connector 11. The microprocessor 14 is in communication connection with the controlled end of the signal switching circuit 13 through a control pin and is used for controlling the connection state of the dynamic end and the static end according to the signal type. After receiving the audio and video signals through the first multiplexing pin and the second multiplexing pin, the connector 11 transmits the audio and video signals to the corresponding display device through the external pin. The data transmission process of the microprocessor is only used for describing how to transmit various types of existing data based on the hardware architecture in the embodiment of the utility model, and specific switching and detection can be realized through corresponding hardware circuits, for example, corresponding level signals are detected at a TX/RX serial port, and corresponding types of data transmission can be realized according to the existing data protocol through multiplexed pins. The protection of the embodiment of the utility model focuses on structural improvement, and the PC module 1 capable of normally transmitting audio and video signals is structurally obtained by adopting multiplexing pins and matching with the microprocessor 14, the central processing unit 12 and the signal switching circuit 13. By adopting multiplexing pins, the pin quantity in the PC module 1 is greatly reduced, so that the material investment for pin production is saved, and the production cost of the PC module 1 is further reduced.

The transmission multiplexing pins comprise an edp_tx0/dp_tx0/hdmi_tx2 multiplexing pin, an edp_tx1/dp_tx1/hdmi_tx1 multiplexing pin and an edp_tx2/dp_tx2/hdmi_tx0 multiplexing pin, and are used for transmitting an eDP type audio/video signal, a DP type audio/video signal or an HDMI type audio/video signal. The eDP type audio/video signal, the DP type audio/video signal or the HDMI type audio/video signal are all digital signals, and the difference is only that the corresponding protocols are different. The clock multiplexing pins include edp_tx3/dp_tx3/hdmi_clk multiplexing pins for transmitting eDP type audio/video signals, DP type audio/video signals, or HDMI type audio/video signals. The eDP type audio/video signal, the DP type audio/video signal or the HDMI type audio/video signal are all digital signals, and the difference is only that the corresponding protocols are different. The transmission multiplexing pins are used for transmitting the eDP type audio/video signals, the DP type audio/video signals or the HDMI type audio/video signals, which are all digital signals, and the signal transmission is different only in protocol, so that the pins for transmitting the eDP type audio/video signals, the DP type audio/video signals or the HDMI type audio/video signals can be multiplexed. When the connector 11 is connected to a corresponding display device through an external pin, the corresponding eDP type audio/video signal, DP type audio/video signal or HDMI type audio/video signal can be sent to the connector 11 through the transmission multiplexing pin only by performing protocol conversion through the central processing unit 12, so that the connector 11 can send the corresponding eDP type audio/video signal, DP type audio/video signal or HDMI type audio/video signal to the display device. For the above reasons, the edp_tx3/dp_tx3/hdmi_clk multiplexing pin can also realize multiplexing of an eDP type audio/video signal, a DP type audio/video signal, or an HDMI type audio/video signal. The hot plug multiplexing pins comprise eDP_HPD/DP_HPD/HDMI_HPD multiplexing pins, and the hot plug multiplexing pins are used for receiving hot plug detection signals. Referring to fig. 2, the PCH chip 15 acquires a hot plug detection signal through a hot plug multiplexing pin and the connector 11, the PCH chip 15 transmits the hot plug detection signal to the central processor 12, and the central processor 12 can maintain the stability of the PC module 1 according to the hot plug detection signal.

The second multiplexing pins include an edp_aux/dp_aux/hdmi_i2c multiplexing pin, and the unique pins include an edp_aux/dp_aux multiplexing pin and an hdmi_i2c pin. The hdmi_i2c pin is connected to the PCH chip 15. The edp_aux/dp_aux multiplexing pin and the hdmi_i2c pin are respectively connected to one dynamic terminal of the signal switching circuit 13, and the edp_aux/dp_aux multiplexing pin is illustratively connected to a first dynamic terminal of the signal switching circuit 13, and the hdmi_i2c pin is connected to a second dynamic terminal of the signal switching circuit 13. When the microprocessor 14 obtains the signal type of the display device accessed by the connector 11 through the serial port pin, it sends a control signal to the switching circuit to control which dynamic terminal is connected with the static terminal according to the signal type. The functional pins include GPIO1 pin, GPIO2 pin and BLON/PWM pin. The PCH chip 15 receives control signals from the central processor 12 and sends them to the microprocessor 14 via a BLON/PWM pin. The microprocessor 14 outputs different signal states through the GPIO1 pin and the GPIO2 pin, and the PCH chip 15 receives the signal states through the GPIO1 pin and the GPIO2 pin and transmits the signal states to the central processor 12. The central processing unit 12 receives the signal states output by the GPIO1 pin and the GPIO2 pin through the PCH chip 15, and the central processing unit 12 can determine whether to output one of an eDP type audio/video signal, a DP type audio/video signal or an HDMI type audio/video signal according to the signal states output by the GPIO1 pin and the GPIO2 pin. The serial port pin includes a TX/RX serial port pin, which is used to obtain a signal type of the display device to which the connector 11 is connected, and is further used to transmit a backlight control signal received by the microprocessor 14BLON/PWM pin to the connector 11, so that the connector 11 transmits the backlight control signal to the display device through an external pin.

It should be noted that the serial port pins include I2C pins, SPI pins, or USB pins.

The microprocessor 14 obtains the signal type of the display device accessed by the connector 11 through the serial port pin, and, for example, when the signal type of the display device accessed by the connector 11 is an HDMI type signal, the microprocessor 14 controls the connection state of the dynamic end and the static end of the switching circuit according to the signal type based on the connection of the microprocessor 14 with the controlled end of the signal switching circuit 13 through the control pin based on the micro-processing. Based on the signal type being the HDMI type, the static end of the switching circuit is controlled to be connected with the second movable end, and the second movable end of the switching circuit is connected with the HDMI_I2C pin, so that the HDMI type signal received from the switching circuit can be transmitted to the PCH chip 15 through the HDMI_I2C pin, and the PCH chip 15 transmits the HDMI type signal to the central processor 12. Meanwhile, the microprocessor 14 controls the signal states of the GPIO1 pin and the GPIO2 pin according to the signal types, based on the signal types being HDMI types, assuming that the signal states corresponding to the HDMI types are GPIO1 pin output 0 and GPIO2 pin output 1, the microprocessor 14 controls the GPIO1 pin output 0 and GPIO2 pin output 1 to the PCH chip 15 according to the signal types, the PCH chip 15 transmits the signal states of the GPIO1 pin output 0 and the GPIO2 pin output 1 to the central processing unit 12, the central processing unit 12 determines the corresponding signal types to be HDMI types according to the received signal states of the GPIO1 pin and the GPIO2 pin output, and then sends the audio/video signals of the types to the first multiplexing pin of the connector 11 through the edp_tx0/dp_tx0/hdmi_tx2 multiplexing pin, edp_tx 1/hdmi_tx 1/hdmi_tx_tx 1 multiplexing pin, edp_tx 2/hdmi_tx_2/hdmi_tx_3/hdmi_clk multiplexing pin, and sends the corresponding audio/video signals of the types to the second multiplexing pin through the hdmi_i2c pin to the switch circuit so as to enable the audio/video signals to be sent to the second multiplexing circuit through the switch circuit. The above data transmission process is only used for describing how to transmit various types of existing data based on the hardware architecture in the embodiment of the present utility model, and specific switching and detection can be implemented by corresponding hardware circuits, for example, a corresponding level signal is detected at a TX/RX serial port, and corresponding types of data transmission are implemented according to the existing data protocol through multiplexed pins. The protection of the embodiment of the utility model focuses on structural improvement, and the PC module 1 capable of normally transmitting audio and video signals is structurally obtained by adopting multiplexing pins and matching with the microprocessor 14, the central processing unit 12 and the signal switching circuit 13. Based on adopting multiplexing pin structurally, the pin quantity in the PC module 1 is greatly reduced, so that the material investment of pin production is saved, and the production cost of the PC module 1 is further reduced.

By adopting the multiplexing pins in the PC module 1, the number of pins is reduced, the technical problem that the PC module 1 generates higher is solved, and the production cost of the PC module 1 is reduced due to the fact that the number of pins is small. In addition, the number of pins is smaller, so that the volume of the PC module 1 is reduced, and the production cost of the PC module 1 is further reduced.

The embodiment of the utility model also provides electronic equipment, which comprises the intelligent flat panel and the PC module 1, wherein the intelligent flat panel is connected with the connector 11 of the PC module 1. The PC module 1 is connected with the connector 11 of the intelligent flat panel through the connector 11, the connector 11 of the PC module 1 receives a data signal transmitted by the intelligent flat panel, and the microprocessor 14 obtains a signal type of the intelligent flat panel accessed by the connector 11 through a serial port pin, and illustratively, when the signal type of the intelligent flat panel accessed by the connector 11 is an HDMI type, the microprocessor 14 controls a connection state of a movable end and a static end of the switching circuit according to the signal type based on the connection of the microprocessor with a controlled end of the signal switching circuit 13 through a control pin based on micro-processing. Based on the signal type being the HDMI type, the static end of the switching circuit is controlled to be connected to the second moving end, and the second moving end of the switching circuit is connected to the hdmi_i2c pin, so that the HDMI type signal received from the switching circuit can be transmitted to the PCH chip 15 through the hdmi_i2c pin, the PCH chip 15 transmits the HDMI type signal to the central processor 12, or the HDMI type signal received by the switching circuit is transmitted to the central processor 12 through the hdmi_i2c pin. Meanwhile, the microprocessor 14 controls the signal states of the GPIO1 pin and the GPIO2 pin output according to the signal type, based on the signal type being HDMI type, assuming that the signal states corresponding to the HDMI type are GPIO1 pin output 0 and GPIO2 pin output 1, the microprocessor 14 controls the GPIO1 pin output 0 and the GPIO2 pin output 1 to the PCH chip 15 according to the signal type, the PCH chip 15 transmits the signal states of the GPIO1 pin output 0 and the GPIO2 pin output 1 to the central processor 12, or the microprocessor 14 controls the GPIO1 pin output 0 and the GPIO2 pin output 1 to the central processor 12 according to the signal type. The central processing unit 12 determines that the corresponding signal type is HDMI type according to the received signal states output by the GPIO1 pin and the GPIO2 pin, and then sends the audio/video signal of HDMI type to the first multiplexing pin of the connector 11 through the edp_tx0/dp_tx0/hdmi_tx2 multiplexing pin, the edp_tx1/dp_tx1/hdmi_tx1 multiplexing pin, the edp_tx2/dp_tx2/hdmi_tx0 multiplexing pin, and the edp_tx3/dp_tx3/hdmi_clk multiplexing pin, and sends the audio/video signal of corresponding HDMI type to the switching circuit through the hdmi_i2c pin, so that the switching circuit sends the audio/video signal of HDMI type to the second multiplexing pin of the connector 11 through the mute terminal. The above data transmission process is only used for describing how to transmit various types of existing data based on the hardware architecture in the embodiment of the present utility model, and specific switching and detection can be implemented by corresponding hardware circuits, for example, a corresponding level signal is detected at a TX/RX serial port, and corresponding types of data transmission are implemented according to the existing data protocol through multiplexed pins. The protection of the embodiment of the utility model focuses on structural improvement, and the PC module 1 obtained by adopting multiplexing pins and matching with the microprocessor 14, the central processing unit 12 and the signal switching circuit 13 is structurally combined with an intelligent flat panel to form the electronic equipment. Based on the multiplexing pins adopted in the structure, the number of pins in the PC module 1 in the electronic equipment is greatly reduced, so that the material investment for pin production is saved, and the production cost of the electronic equipment is further reduced.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the connection may be mechanical connection, direct connection or indirect connection through an intermediate medium, and may be internal connection of two elements or interaction relationship of two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

It should be noted that, in the present utility model, unless explicitly specified and limited otherwise, a first feature may be "on" or "off" a second feature, either by direct contact of the first and second features or by indirect contact of the first and second features via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. A PC module, comprising: the device comprises a connector, a central processing unit, a signal switching circuit and a microprocessor;

the connector is connected with a third multiplexing pin of the central processing unit through a first multiplexing pin, is connected with a static end of the signal switching circuit through a second multiplexing pin, and further comprises an external pin for accessing display equipment;

at least two independent pins of the central processing unit are respectively connected with one movable end of the signal switching circuit;

the microprocessor is connected with the controlled end of the signal switching circuit through a control pin and is used for controlling the connection state of the movable end and the static end according to the signal type;

the microprocessor is connected with the central processing unit through a functional pin and is used for controlling the signal state of the functional pin according to the signal type, and the central processing unit is used for sending corresponding audio and video signals through the first multiplexing pin and the second multiplexing pin according to the signal state.

2. The PC module of claim 1, wherein the third multiplexing pin comprises a transmit multiplexing pin, a hot plug multiplexing pin, and a clock multiplexing pin;

the connector is connected with the sending multiplexing pin, the hot plug multiplexing pin and the clock multiplexing pin of the central processing unit through a first multiplexing pin, the sending multiplexing pin is used for sending eDP signals, DP signals and HDMI signals, and the hot plug multiplexing pin is used for receiving hot plug detection signals.

3. The PC module of claim 2, wherein the transmit multiplexing pins include edp_tx0/dp_tx0/hdmi_tx2 multiplexing pins, edp_tx1/dp_tx1/hdmi_tx1 multiplexing pins, and edp_tx2/dp_tx2/hdmi_tx0 multiplexing pins;

the hot plug multiplexing pins comprise eDP_HPD/DP_HPD/HDMI_HPD multiplexing pins;

the clock multiplexing pins include edp_tx3/dp_tx3/hdmi_clk multiplexing pins.

4. The PC module of claim 1, wherein the functional pins include one or more combinations of GPIO1 pins, GPIO2 pins, and BLON/PWM pins.

5. The PC module of claim 1, wherein the serial port pin comprises a TX/RX serial port pin.

6. The PC module of claim 1, wherein the second multiplexing pin comprises an edp_aux/dp_aux/hdmi_i2c multiplexing pin, and the unique pins comprise an edp_aux/dp_aux multiplexing pin and an hdmi_i2c pin.

7. A PC module, comprising: the device comprises a connector, a central processing unit, a signal switching circuit, a microprocessor and a PCH chip;

the connector is connected with a transmitting multiplexing pin and a clock multiplexing pin of the central processing unit through a first multiplexing pin, is connected with a static end of the signal switching circuit through a second multiplexing pin, and further comprises an external pin for accessing display equipment;

the central processing unit is connected with one movable end of the signal switching circuit through an eDP_AUX/DP_AUX multiplexing pin, and the central processing unit is connected with the PCH chip;

the PCH chip is connected with the first multiplexing pin of the connector through a hot plug multiplexing pin, and is connected with one movable end of the signal switching circuit through an HDMI_I2C pin;

the microprocessor is connected with the PCH chip through a functional pin and is used for controlling the signal state of the functional pin according to the signal type, the PCH chip is used for sending the signal state to a central processing unit, and the central processing unit is used for sending corresponding audio and video signals through the first multiplexing pin and the second multiplexing pin according to the signal state;

the microprocessor is in communication connection with the controlled end of the signal switching circuit through a control pin and is used for controlling the connection state of the movable end and the static end according to the signal type.

8. The PC module of claim 7, wherein the transmit multiplexing pins include edp_tx0/dp_tx0/hdmi_tx2 multiplexing pins, edp_tx1/dp_tx1/hdmi_tx1 multiplexing pins, and edp_tx2/dp_tx2/hdmi_tx0 multiplexing pins;

the clock multiplexing pins comprise edp_tx3/dp_tx3/hdmi_clk multiplexing pins;

the functional pins comprise one or more of a GPIO1 pin, a GPIO2 pin and a BLON/PWM pin;

the serial port pins comprise TX/RX serial port pins;

the second multiplexing pin includes an edp_aux/dp_aux/hdmi_i2c multiplexing pin.

9. The PC module of claim 7, the serial port pin comprising an I2C pin, an SPI pin, or a USB pin.

10. An electronic device comprising a smart tablet and the PC module of any one of claims 1-9;

the intelligent flat board is connected with the connector of the PC module.