KR20220167747A - Host system and Device performing environment setting based on connector connection direction and Operating Method of host system - Google Patents

Abstract

Disclosed are a host system and a device for performing an environment setting based on a connector connection direction and an operating method of the host system. According to an embodiment of the technical idea of the present disclosure, the host system comprises: a connector which has a structure connected to the device regardless of direction, and in which a plurality of pins are arranged; a connection direction detector which detects a direction in which the device is connected to the host system, by detecting a signal from at least one first pin among the plurality of pins; and a setting controller which receives setting information, related to an environment setting supported by the device, from the device and controls an environment setting operation for the device, based on the direction information from the connection direction detector. The host system performs control so that a function module provided in the device and having a unique function is selectively enabled based on the setting information and the direction information. Therefore, the host system can implement various user environments by using the unique structure of a USB type-C interface.

Description

Host system and device performing environment setting based on connector connection direction and Operating Method of host system

The technical idea of the present disclosure relates to a host system and a device connected thereto, and more particularly, to a host system and device that performs environment setting based on a connector connection direction, and a method of operating the host system.

Electronic devices constituting the data processing system may communicate through various types of interface standards. As an example, a host system and a device may configure a data processing system, and as an example of an interface, the host system and the device may be USB (Universal Serial Bus) Type-C or USB PD (Universal Serial Bus Power Delivery) Type-C You can communicate through an interface. According to the USB Type-C interface standard, a user can connect a device to a host system regardless of direction. As an example, a user can connect a plug of a device to a receptacle of a host system in both directions. The host system can determine various characteristics of the device based on the operation defined in the USB Type-C interface.

However, in general, the host system can detect the connection direction of the device based on the items defined in the USB Type-C interface, but can only determine the positions of pins through which data is transmitted according to the connection direction of the device. However, there is a limit to providing various environments for the satisfaction of users using the data processing system.

An object to be solved by the technical idea of the present invention is to provide a host system and a device capable of implementing various user environments by utilizing a unique structure of a USB Type-C interface.

In order to achieve the above object, a host system according to one aspect of the technical idea of the present disclosure includes a connector having a structure connected to the device regardless of direction and having a plurality of pins disposed thereon, and among the plurality of pins A connection direction detector detecting a direction in which the device is connected to the host system by detecting a signal from at least one first pin and receiving setting information related to environment settings supported by the device from the device, and the connection direction A setting controller configured to control an environment setting operation for the device based on direction information from a sensor, and the host system includes a function having a unique function provided in the device based on the setting information and the direction information. It is characterized by performing control so that the module is selectively enabled.

Meanwhile, a method of operating a host system according to one aspect of the technical idea of the present disclosure includes recognizing a device connected through a connector having a USB Type-C structure, and from at least one first pin among a plurality of pins of the connector. detecting a direction in which the device is connected to the host system by detecting a signal of ; receiving setting information related to environment settings supported by the device through first control of the device; and and controlling an environment setting operation for the device through a second control for the device, wherein the second control is performed based on a result of detecting a connection direction of the device and the setting information received from the device. , It is characterized in that a function module having a unique function provided in the device is controlled to selectively enable according to the second control.

Meanwhile, a USB device according to one aspect of the technical idea of the present disclosure has a structure that is connected to a host system regardless of direction, stores a connector on which a plurality of pins are disposed, and one or more pieces of content information, and stores information from the host system. A non-volatile memory device providing the content information to the host system based on the first control of the function module having a function for providing one or more user environments to the host system and based on the second control of the host system and an environment setter configured to set an operating environment of the USB device including enabling control of the function module, wherein the environment setter configures the second device as the USB device is connected to the host system in a first direction. Disabling the function module based on control, and enabling the function module based on the second control when the USB device is connected to the host system in a second direction.

According to the host system and device of the technical concept of the present invention, a device that can be connected in both directions according to a USB Type-C interface is provided with various function modules, and the function modules are selectively selected according to the connection direction of the device to the host system. Since it can be enabled, since various types of user environments can be provided to the user, user satisfaction is improved.

1 is a block diagram illustrating a data processing system according to an exemplary embodiment of the present disclosure.
2a and b are diagrams illustrating an implementation example of a host system and a device including a connector having a USB Type-C structure.
3 is a circuit diagram showing a resistance connection state of a CC pin of a connector having a USB Type-C structure.
4 is a block diagram illustrating an example of communication based on a USB Type-C interface according to an exemplary embodiment of the present disclosure.
5 and 6 are block diagrams illustrating implementation examples of devices according to exemplary embodiments of the present disclosure.
7 is a block diagram illustrating an implementation example of a host system according to an exemplary embodiment of the present disclosure.
8 is a flowchart showing a method of operating a data processing system according to an exemplary embodiment of the present disclosure.
9 to 12 are block diagrams illustrating data processing systems according to various embodiments of the present disclosure.
13 is a block diagram illustrating a case in which embodiments of the present disclosure are applied to a digital TV (DTV) system.
14 is a diagram illustrating an example implementation of a system in an exemplary embodiment of the present disclosure.
15 is a block diagram illustrating an electronic system in which a device performs environment setting control for a host system, according to an exemplary embodiment of the present disclosure.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a data processing system according to an exemplary embodiment of the present disclosure. 1 illustrates a case in which the data processing system 10 includes electronic devices that communicate according to a predetermined interface, and the electronic devices may include a host system 100 and a device 200 .

The host system 100 and the device 200 may perform communication according to a USB (Universal Serial Bus) Type-C or USB PD (Universal Serial Bus Power Delivery) Type-C interface standard as a predetermined interface. In the following embodiments, it will be assumed that the host system 100 and the device 200 perform communication according to the USB Type-C interface. However, the embodiments of the present disclosure are not necessarily limited thereto, and as the pin structure of the connector has a symmetrical structure in both directions (eg, up and down directions and/or left and right directions), the connector included in the device 200 Various interfaces that can be connected to the connector of the host system 100 in both directions may be applied.

Each of the host system 100 and the device 200 may include a connector of a USB Type-C structure, and when the device 200 is connected to the host system 100, the connector provided in the host system 100 ( 101) may be referred to as a receptacle, and the connector 201 provided in the device 200 may be referred to as a plug inserted into the receptacle. According to the USB Type-C interface, the connector 201 of the device 200 can be connected to the connector 101 of the host system 100 regardless of the direction.

The device 200 may be an electronic device that performs various functions, and when performing communication according to a USB Type-C interface, the device 200 may be referred to as a USB device. In addition, the device 200 may include modules that are connected to the host system 100 and provide various functions. It may be a USB device in the form of a memory card that stores data.

As the host system 100 is connected to the device 200 through the connector 101, it can access content information stored in the device 200 and reproduce voice files, image and video files, document files, and the like. . In addition, according to the authority granted to the host system 100 , the host system 100 may perform various management operations such as modification and deletion of content information stored in the device 200 . In one implementation, the host system 100 is a TV, monitor, portable multimedia player, smartphone, tablet personal computer (tablet PC), mobile phone, video phone, e-book reader (e-book) reader), desktop personal computer (laptop personal computer), netbook computer, workstation, server, personal digital assistant (PDA), portable multimedia player (PMP), MP3 player , a mobile medical device, a camera, or a wearable device, but embodiments of the present disclosure are not limited thereto.

According to an exemplary embodiment of the present disclosure, the host system 100 may include a connection direction detector 110 , a register 120 and a settings controller 130 . Also, the device 200 may include a memory device 210 , a storage circuit 220 and an environment setter 230 . The memory device 210 may include a non-volatile memory for storing content information, and as an example, the memory device 210 includes a NAND flash memory, a vertical NAND flash memory, and a Noah flash. Non-volatile memories such as NOR Flash Memory, Resistive Random Access Memory, Phase-Change Memory, and Magnetoresistive Random Access Memory may be included.

As the connectors 101 and 201 of the data processing system 10 have a USB Type-C structure, the device 200 can be connected to the host system 100 regardless of the connection direction, and the connection direction detector 110 can detect the connected direction of the device 200 by detecting a signal through at least one pin provided in the connector 101 . In addition, information (eg, direction information Info_D) by which the connection direction of the device 200 is sensed may be stored in the register 120, and the host system 100 may store the direction information (Info_D) stored in the register 120. Based on this, it is possible to control various environment setting operations for the device 200 .

Meanwhile, according to matters defined in the USB Type-C interface standard, the host system 100 may receive various types of information related to the device 200 connected through the connector 101 . As an example, an environment setting operation may be performed in a process of initializing a connection between the host system 100 and the device 200, and the host system 100 provides a predetermined command to the device 200 so that the device 200 It is possible to perform the first control for. For example, the first control may include a Get Descriptor operation defined in the USB Type-C interface. The host system 100 may receive various types of information, such as manufacturer and model information, from the device 200 through a Get Descriptor operation, and environment setting information related to various operating environments configurable in the device 200. In addition, information on various types of interface methods that can be supported in each set operating environment may be provided to the host system 100 .

Various kinds of information related to the environment setting as described above may be non-volatilely stored in the device 200, and as an example, the storage circuit 220 may be implemented as a memory such as a ROM (Read Only Memory). Information may be stored in the storage circuit 220 . In the following embodiments, among various types of information provided from the device 200 to the host system 100 , information related to an environment setting operation for the device 200 may be referred to as setting information Info_S.

In an exemplary embodiment of the present disclosure, the host system 100 may control environment settings of the device 200 by performing second control on the device 200 . For example, the second control may include a Set Configuration/interface operation defined in the USB Type-C interface. Also, in controlling the environment setting, the host system 100 may control the environment setting operation for the device 200 based on the setting information (Info_S) and the direction information (Info_D). For example, the device 200 may include a module that performs at least one other function along with a function of storing content information, and the host system 100 may include a module based on setting information Info_S and direction information Info_D. Thus, a control operation may be performed so that a user experience utilizing at least one other function of the device 200 may be provided. For example, when the device 200 includes a wireless communication module (not shown) such as Wi-Fi or Bluetooth, the host system ( A setting operation may be performed so that 100) can perform communication through a communication module included in the device 200. That is, an environment setting step may be performed between the host system 100 and the device 200 in the USB Type-C interface. During the environment setting step, direction information (Info_D) indicating the connection direction of the device 200 is used. By doing so, the host system 100 can set a user environment using various modules included in the device 200 .

In one embodiment, the configuration controller 130 of the host system 100 may be implemented as a hardware circuit or software, or may be implemented as a combination of hardware and software. For example, the host system 100 may include software (eg, an application and/or device driver) that controls a circuit that performs hardware communication with the device 200, and the setting controller 130 may include software applications. and/or may be provided in a device driver. In addition, the environment setter 230 of the device 200 may perform environment setting operations related to various functions in the device 200 based on environment setting control from the host system 100 . As described above, when the device 200 includes a module that performs a separate function, such as a communication module, an operation related to enable setting of the module may be performed.

According to the embodiment of the present disclosure as described above, the device 200 based on the detection result of the connection direction of the device 200 without the user manipulating a complicated user interface such as software manipulation or hardware buttons. Since various functions that can be supported by can be implemented, there is an effect of increasing the user application experience.

2a and b are diagrams illustrating an implementation example of a host system and a device including a connector having a USB Type-C structure. Since various terms shown in FIGS. 2A and 2B can be easily understood by those skilled in the art through the USB interface standard, a detailed description thereof will be omitted.

Referring to the host system 310 of FIG. 2A , pins included in the connector 311 of the host system 310 may have a symmetrical structure. As an example, the connector 311 may include pins A1 to A12 in a first row and pins B1 to B12 in a second row, and may support data communication at various speeds. For example, the connector 311 includes pins A2 to A3, A10 to A11, B2 to B3, and B10 to B11 supporting high-speed data communication according to a first standard (eg, USB 3.1), and a second standard (eg, USB 3.1). It may include pins (A6 to A7, B6 to B7) supporting low-speed data communication according to USB 2.0). In addition, each of the pins of the first row (A1 to A12) and the pins of the second row (B1 to B12) may perform a unique function, and as an example, the VBUS pins (A4, A9, B4, and B9) are power supply pins. , GND pins (A1, A12, B1, B12) correspond to pins that deliver ground voltage, and SBU (Sideband Use) pins (A8, B8) are pins used to support ALT (Alternate) mode. It can be connected with a connector equipped with Thunderbolt, DisplayPort, HDMI, etc.

In addition, the host system 310 may perform unidirectional or bidirectional communication through the connector 311 . As an example, the host system 310 may operate as a host (eg, a downstream facing port (DFP)) or a slave (upstream facing port (UFP)) when connected to an external device through the connector 311. . Alternatively, the host system 310 may operate as a dual role port (DRP), and in this case, the host system 310 may adaptively change the role of the host (DFP) or slave (UFP).

Meanwhile, in the USB Type-C structure, the connector 311 may include CC (configuration channel) 1 pins and CC2 pins (CC1, CC2) used to identify external devices, and the CC1 pin and CC2 pins are connectors. 311 may correspond to pins A5 and B5. When an external device is connected to the connector 311, one of the CC1 and CC2 pins is connected to the power supply voltage, and the other pin is connected to a predetermined pull-down resistor (or open). can have

The host system 310 may include an integrated circuit connected to the CC1 pin and/or the CC2 pin of the connector 311, and the integrated circuit may be referred to as a Configuration Channel Integrated Circuit (CCIC) 312. In the above-described embodiment, the connection direction detector that may be provided in the host system 310 may be implemented in the CCIC 312, and the CCIC 312 may have a voltage state (or resistance state) connected to the CC1 pin and the CC2 pin. Based on the connection of the external device, it is possible to detect the connected direction of the plug of the external device. In addition, the CCIC 312 may perform data connection and control based on a result of recognizing the connection of an external device.

According to an exemplary embodiment of the present disclosure, the CCIC 312 may generate and output direction information (Info_D) indicating a connection direction of an external device. As an example, the direction information (Info_D) is the CCIC 312 Stored in an internal or external register, the direction information Info_D stored in the register may be provided to a software layer such as a device driver in the host system 310 . Also, according to an exemplary embodiment of the present disclosure, the host system 310 may receive various types of information related to an external device and control operating environment settings of the external device based on direction information Info_D.

Meanwhile, referring to FIG. 2B , the device 320 may include a connector 321 connected to the host system 310, and in the example of FIG. 2B, a plug-type connector inserted into the receptacle of the host system 310. 321 is shown.

According to the above-described embodiment, the device 320 may be various types of electronic devices, and as an example, may be a memory card including a memory device for storing content information. Further, according to an exemplary embodiment of the present disclosure, the device 320 may include a storage circuit 322 and an environment setter 333, and the storage circuit 322 is based on the USB Type-C interface standard. Various types of information provided to the host system 310 according to the Get Descriptor operation may be stored. For example, as described above, the storage circuit 322 may store information related to various types of environment settings that can be set in the device 320 together with device information such as manufacturer and model information of the device 320, and , and may also store information related to an interface method applicable in each operating environment. In addition, the environment setter 333 may set the operating environment of the device 320 based on the setting control from the host system 310. As an example, the host system 310 based on the USB Type-C interface standard Operation environment setting of the device 320 may be performed according to the Set Configuration/interface operation by.

In an exemplary embodiment, the device 320 may include a module that performs at least one function as a user environment, and the module may be selectively enabled according to a connection direction of the device 320 . In one embodiment, although not shown in FIG. 2B , a mark capable of determining the direction of the device 320 may be formed on the outer surface of the device 320 , and the user checks the mark formed on the outer surface of the device 320 and Based on this, a connection direction of the device 320 may be selected to connect the device 320 to the host system 310 .

For example, when the device 320 includes a communication module such as a Wi-Fi module, the user specifies the device 320 so that the host system 310 can communicate using the Wi-Fi module included in the device 320. It is possible to connect to the host system 310 in a direction (eg, a first direction). On the other hand, in the case of using the device 320 for a basic purpose such as storing content information, the user may connect the device 320 to the host system 310 in another specific direction (eg, a second direction). . According to an embodiment of the present disclosure, the host system 310 determines information about the device 320 based on setting information related to environment settings read from the device 320 together with direction information indicating a connection direction of the device 320 . You can control your preferences.

3 is a circuit diagram showing a resistance connection state of a CC pin of a connector having a USB Type-C structure. As an example, when a device is connected to a host system, a case in which the host system operates as a host (eg, downstream facing port (DFP)) and the device operates as a slave (upstream facing port (UFP)) is exemplified.

A pull-down resistor (Rd) having a pre-arranged resistance value is connected to the CC pin of the device, and when the device is connected to the host system, either the CC1 pin or the CC2 pin of the host system is connected according to the connection direction of the device. This can optionally be connected to the pull-down resistor (Rd) of the device. As an example, the CC pin of the host system may be connected to a predetermined power supply voltage (eg, a power supply voltage of 5V) through a pull-up resistor Rp having a prearranged resistance value. In the example of FIG. 3 , a case in which the CC1 pin of the host system is connected to the pull-down resistor (Rd) of the device is exemplified.

The host system can detect the connection direction of the device based on the voltage level detected through the CC1 pin or the CC2 pin. As an example, the host system detects the open state of the CC2 pin, while the node between the pull-up resistor (Rp) and the pull-down resistor (Rd) connected in series between the supply voltage of 5V from the CC1 pin and the ground voltage. The voltage level of can be detected, and based on this, the connection direction of the device can be detected. That is, in an embodiment of the present disclosure, the connection direction of the device may be detected by determining which pin of the host system, CC1 pin or CC2 pin, is connected to the pull-down resistor Rd of the device.

4 is a block diagram illustrating an example of communication based on a USB Type-C interface according to an exemplary embodiment of the present disclosure.

Referring to FIG. 4 , the data processing system 400 may include a host system 401 and a device 402, and the host system 401 and the device 402 are mutually connected through a connector having a USB Type-C structure. can be connected As in the above-described embodiment, the host system 401 and the device 402 can be directly connected through the receptacle and plug structures, and two data transmission paths are provided according to the connection direction of the device 402. Any one of them can be selected.

For example, the host system 401 and the device 402 may include a semiconductor chip that communicates with each other based on a USB Type-C interface. For example, a first USB chipset provided in the host system 401 ( 410) and the second USB chipset 440 provided in the device 402 are exemplified. Each of the first USB chipset 410 and the second USB chipset 440 may include a circuit and a software layer performing hardware communication according to the above-described embodiment.

The second USB chipset 440 may communicate data with the host system 401 through at least one pin of the connector, and as an example, RX1 supporting high-speed data communication according to the first standard (eg, USB 3.1). and TX1 pin to communicate data. In addition, the second USB chipset 440 may communicate data with the host system 401 through D+ and D- pins supporting low-speed data communication according to the second standard (eg, USB 2.0).

In addition, the host system 401 and the device 402 may recognize the interconnection by performing communication through a CC pin, and each may include CC logic (eg, CCIC) to perform a related operation. As an example, the host system 401 may include a first CC logic 420, the device 402 may include a second CC logic 450, and the second CC logic 450 may include a specific CC pin ( For example, it may be connected to the host system 401 through a CC1 pin or a CC2 pin.

According to an exemplary embodiment of the present disclosure, the device 402 can be coupled to the host system 401 according to the first direction or the second direction, and the first CC logic 420 of the host system 401 is connected to the CC1 pin. A connection direction of the device 402 may be detected by detecting a CC pin connected to a pull-down resistor of the device 402 among the CC2 pins. In addition, the first CC logic 420 may generate direction information Info_D based on a detection result of the connection direction and provide the direction information Info_D to the multiplexer 430 provided in the host system 401 .

Depending on the connection direction of the device 402, the host system 401 can perform high-speed data communication with the device 402 through the RX1 and TX1 pins, or high-speed data communication with the device 402 through the RX2 and TX2 pins. can be done The multiplexer 430 may connect the first USB chipset 410 to pins RX1 and TX1 or connect the first USB chipset 410 to pins RX2 and TX2 through a switching operation based on the direction information Info_D. That is, the host system 401 performs high-speed data communication through the RX1 and TX1 pins or performs high-speed data communication through the RX2 and TX2 pins based on the switching operation of the multiplexer 430 according to the connection direction of the device 402. can be performed.

Meanwhile, according to an exemplary embodiment of the present disclosure, as the direction information Info_D is provided to the first USB chipset 410, the direction information Info_D can be utilized in the application layer of the host system 401, and the device The setting information Info_S related to operating environment setting provided from step 402 may be provided to the first USB chipset 410 . In the example shown in FIG. 4 , the first USB chipset 410 receives setting information (Info_S) through high-speed data communication, but setting information (Info_S) is received through low-speed data communication through D+ and D- pins. It may be provided as the first USB chipset 410 .

According to an exemplary embodiment of the present disclosure, the first USB chipset 410 may control various environment setting operations for the device 402 based on the direction information (Info_D) and the setting information (Info_S). For example, when the device 402 includes one or more modules for other functions (eg, Wi-Fi communication function) in addition to a function of storing content information, the setting information Info_S includes various types supported by the device 402. Environment settings and interface-related information may be included, and the first USB chipset 410 may perform a control operation for environment settings corresponding to the direction information Info_D.

5 and 6 are block diagrams illustrating implementation examples of devices according to exemplary embodiments of the present disclosure. 5 and 6, a Wi-Fi module and an access authority control module are exemplified as modules implemented in a device, but in embodiments of the present disclosure, the device is connected to a user PC, TV, or smart phone to provide various types of user environments. Various modules may be provided. Also, a device that communicates with a host system based on a USB Type-C interface may be referred to as a USB device.

Referring to FIG. 5 , a device 500A may include a connector 501A, a Wi-Fi module 520A, and an environment setter 530A, and when the device 500A is implemented in the form of a memory card, the device 500A may further include a memory device 510A. The device 500A may provide content information stored in the memory device 510A to the host system through the connector 501A, and as the host system performs a Set Configuration/interface operation based on the USB Type-C interface, A configuration command (CMD_S) may be received from the host system.

The environment setter 530A may set various operating environments in the device 500A in response to a setting command CMD_S from the host system. For example, as the device 500A includes the Wi-Fi module 520A, the environment setter 530A may output a first enable/disable signal EN/DIS_1 in response to the setting command CMD_S and , Accordingly, the Wi-Fi module 520A may be enabled or disabled. As the host system detects the connected direction of the device 500A, it can internally activate components for processing data transmission and reception through Wi-Fi communication, and as the Wi-Fi module 520A of the device 500A is enabled, The host system may perform wireless communication with an electronic device outside the data processing system through the Wi-Fi module 520A.

As an example of operation, the environment setter 530A may output a second enable/disable signal EN/DIS_2 for enabling the memory device 510A in response to the setting command CMD_S. . In one operation example, when the Wi-Fi module 520A of the device 500A is enabled, access to content information stored in the memory device 510A may be blocked as the memory device 510A is disabled, and accordingly The device 500A may perform only the function of the Wi-Fi module 520A. Alternatively, as the memory device 510A and the Wi-Fi module 520A are both enabled, information received from an external electronic device may be stored in the memory device 510A, or content information stored in the memory device 510A. may be transmitted to an external electronic device through the Wi-Fi module 520A.

Referring to FIG. 6 , as the device 500B is implemented in the form of a memory card, the device 500B may include a memory device 510B and an environment setter 520B, and the memory device 510B has access authority. A control module 511B may be included. Similar to the embodiment shown in FIG. 5 , the device 500B may provide content information stored in the memory device 510B to the host system through the connector 501B, and may also provide the host system through the connector 501B. It is possible to receive a setting command (CMD_S) indicating the setting of the operating environment from

The user may require security of the content information stored in the device 500B. For example, when the device 500B is connected to a user PC or TV, the content information stored in the device 500B may be damaged due to a security attack from the outside. You may want to prevent leakage to the outside. At this time, when connecting the device 500B to the host system, the user may connect the device 500B to the host system in a specific direction so that the security function is enabled, and the host system may connect the device 500B to the host system based on the connection direction of the device 500B. A setting command (CMD_S) may be provided to the device 500B.

The environment setter 520B may provide permission setting information (Set_A) to the access permission control module 511B of the memory device 510B in response to the setting command CMD_S, and set the access permission control module 511B. Accordingly, access to content information stored in the memory device 510B may be restricted. For example, access rights to the memory device 510B may be set in various forms, and as an example, specific content information may be reproduced by the host system as it is provided to the host system, whereas content information requiring security may be reproduced by the host system. In this case, transmission to the host system may be blocked. Alternatively, although not shown in FIG. 6, the device 500B may include a Wi-Fi module, and content information stored in the memory device 510B according to the settings of the access authority control module 511B is physically connected to the host system. On the other hand, access rights may be set so that transmission of content information is blocked through communication based on other wired/wireless methods such as Wi-Fi communication.

According to the exemplary embodiment of the present disclosure as described above, in a data processing system including a host and a device, various functions can be implemented in the application layer according to the connection direction of the device, blocking access to content information, content There is an effect of increasing user experience through transmission of information to other electronic devices through wired/wireless communication and implementation of Wi-Fi communication through device connection.

7 is a block diagram illustrating an implementation example of a host system according to an exemplary embodiment of the present disclosure.

Referring to FIG. 7 , the host system 600 may include a connector 650 having a USB Type-C structure and various components constituting the host system 600 . The host system 600 may be implemented based on a combination of hardware circuits and software. As an example, the host system 600 includes a host controller 610, a Type-C controller 620, a host driver 630, and An application (or application layer 640) may be included. In an implementation example, the host controller 610 and the Type-C controller 620 may be implemented as hardware circuits, and the host driver 630 and the application 640 may be implemented as software executable by a processor. .

The host system 600 can communicate with a device connected to the connector 650, transmit and receive data with the device through a data channel connected to a data pin, and connect to a CC pin (eg, a CC1 pin and a CC2 pin). Connecting and recognizing the device can be performed by communicating with the device through the connected configuration channel. The Type-C controller 620 may correspond to the CCIC in the above-described embodiment, and may detect a connection direction of a device through an environment setting channel. In addition, the direction information (Info_D) according to the detection result may be stored in a register inside the Type-C controller 620, and the direction information (Info_D) is transmitted to the software layer of the host system 600 to set the environment of the device. can be used for For example, the direction information Info_D may be provided to the host driver 630 and/or the application 640 .

The host controller 610 may communicate with a device in hardware through the connector 650 and perform various control operations for devices connected to the connector 650 . For example, the host controller 610 is a hardware controller for a USB host and can transmit/receive at least one piece of information with the Type-C controller 620 . As an example, the host controller 610 may recognize device connection based on information of the Type-C controller 620 . In addition, the host controller 610 may transmit/receive various types of information with the device through a data channel, and recognize various types of information related to the device based on information provided from the device. For example, the host controller 610 may recognize the speed of the device, generate a USB packet, transmit the generated USB packet to the device, and perform various control operations for a flow related to communication with the device. .

Meanwhile, the application 640 may include various types of software that accesses a device in a data processing system and may determine specific settings or functions for a device. Also, the host driver 630 is software that controls the host controller 610, and may convert various requests and data from the application 640 into a format corresponding to a device and provide the converted data to the host controller 610. In an exemplary embodiment of the present disclosure, the direction information (Info_D) may be provided to the application 640 and/or the host driver 630, and the direction information (Info_D) may be used in determining a specific setting or function for a device. can be used

Meanwhile, when data converted into a specific format by the host driver 630 is stored in a predetermined memory (eg, double data rate (DDR) DRAM) in the host system 600, the host controller 610 converts the host driver 630 ), data stored in the memory is read based on the location information provided from ), the read data is converted to correspond to the USB interface standard, and communication with the device can be performed based on the USB interface standard. In addition, the host controller 610 may perform processing operations for errors in communication with the device, and as an example, a packet retransmission request may be performed at the host controller 610 stage.

In an operation example, the host system 600 may receive various types of information from a device through a Get Descriptor operation based on the USB interface standard. For example, the device may internally store various information related to environment settings, and may transmit various types of information such as the manufacturer, model, and function of the device to the host system 600 in response to a Get Descriptor operation, and may also be supported by the device. Information related to various types of environment settings and information about various types of applicable interfaces with the host system 600 corresponding to each environment setting may be transmitted. In embodiments of the present disclosure, when a device provides various functions such as Wi-Fi communication and content access permission setting in relation to the user environment, information related thereto may be provided to the host system 600 by a Get Descriptor operation. .

The application 640 and/or the host driver 630 may determine a specific setting or function of the device based on a combination of information related to the device received through the Get Descriptor operation and the direction information Info_D. For example, according to the above-described embodiments, functions provided by the device may be selectively enabled based on the connection direction of the device, and as an example, the Wi-Fi module may be enabled or disabled according to the connection direction of the device Alternatively, access rights to content information may be set differently according to the connection direction of the device.

Device environment settings may be controlled or interface settings may be controlled based on the control of the application 640 and/or the host driver 630 as described above. For example, the host system 600 is based on the USB interface standard The above environment settings and interface settings can be controlled through the Set Configuration/interface operation.

8 is a flowchart showing a method of operating a data processing system according to an exemplary embodiment of the present disclosure. The operating method shown in FIG. 8 may include the operating method of the host system and the operating method of the device in the embodiment of the present disclosure.

Referring to FIG. 8, the device can be connected to the host system through a connector of a USB Type-C structure (S11), and the host system through a configuration channel connected to CC pins (CC1 pin and CC2 pin). It is possible to determine the connection direction of the device (S12).

Direction information representing the connection direction of the device determined by the host system may be stored in a register in the host system, and the stored direction information may be transferred to a software layer of the host system, for example, the direction information may be provided to a host driver. (S13). In addition, the host system can check various information related to the device through a Get Descriptor operation for the device (S14), and it can be determined whether or not to use the direction information of the device in performing environment setting and interface setting for the device. Yes (S15).

In one embodiment, whether or not to use the direction information of the device may be determined in various ways. For example, the host system may determine whether the device supports additional functions for the user environment based on information received through the Get Descriptor operation, and if a module for the additional functions is disposed in the device, the device It can be determined that direction information is used. Alternatively, a setting operation for determining whether or not to use the direction information of the device may be performed in the host system, and even if the device includes modules related to additional functions, the direction information of the device is determined based on the information set in the host system. It may be used selectively.

Depending on the determination result, if the device direction information is not used, the host system may determine the environment settings for the device regardless of the connection direction of the device (S17). On the other hand, in the case of using the device direction information , Environment settings can be determined by reflecting connection direction information of the device among various operating environments that can be supported by the device (S16). According to the above processes, the environment settings for the device can be finally determined, and the environment settings for the device can be performed through the Set Configuration/interface operation accordingly (S18). A normal operation may be performed (S19).

9 to 12 are block diagrams illustrating data processing systems according to various embodiments of the present disclosure. In describing the embodiments shown in FIGS. 9 to 12 , detailed descriptions of components identical to those shown in FIG. 7 are omitted.

Referring to FIG. 9 , the host system 700 may include a host controller 710, a Type-C controller 720, a host driver 730, and an application layer 740. In addition, the application layer 740 Various types of applications 750 that can be loaded and a connector 760 according to the above-described embodiments may be further included. Also, the host controller 710 includes hardware circuits, and may include, for example, a direction sensor and a register.

Meanwhile, the host driver 730 may be included in a software layer and may include a transfer controller 731, a command queue 732, a command generation block 733, a decision block 734, and a direction information register 735. there is. The transmission controller 731 may control a transmission path of information in transmitting and receiving information with the host controller 710, and the direction information register 735 may store direction information from the Type-C controller 720 and determine Block 734 may determine environment settings for the device based on setting information from the device and a connection direction of the device according to the above-described embodiments.

The command generation block 733 may generate commands for controlling various environment settings for the device, and may also control an application loading operation based on a result of the determination of the determination block 734 . As an example, a device may include various types of function modules, and the host system 700 may include various types of applications for utilizing the function modules included in the device. An application to be loaded in the application layer 740 may be selected based on the control of the command creation block 733 .

The commands generated in the command generation block 733 may be stored in the command queue 732 and provided to the device through the transmission controller 731 and the host controller 710 according to a predetermined timing. According to the above-described embodiments, Get Descriptor and Set Configuration/interface operations for receiving various setting information and controlling environment settings for a device may be performed based on command transmission.

Meanwhile, referring to FIG. 10 , the host system 800 may include a host controller 810, a Type-C controller 820, a host driver 830, an application layer 840, and a connector 870, In addition, various types of applications may further include a Wi-Fi driver 850 and a memory driver 860. In addition, the host driver 830 may include a transfer controller 831 , a command queue 832 , a command generation block 833 , a decision block 834 and a direction information register 835 .

When a device may be implemented as a memory card including a memory device and a communication module (eg, Wi-Fi module) is included in the device according to an embodiment of the present disclosure, the host system 800 drives the Wi-Fi module and the memory device. It may include an application for In addition, according to an embodiment of the present disclosure, when the Wi-Fi module is enabled when a device is connected in a specific direction, the Wi-Fi driver 850 generates a command based on control of the host driver 830 or the command generation block 833. It can be selectively loaded into the application layer 840, and thus a wireless communication function can be provided as a user environment.

Meanwhile, referring to FIG. 11 , the data processing system 900 may include a host system 901 and a device 902, and the host system 901 includes a host controller 911 and a Type-C controller 912. , a host driver 913, an application layer 914, and a connector 916, and may further include a memory driver 915 as various types of applications. In addition, the host driver 913 may include a transfer controller, a command queue, a command generation block, a decision block, and a direction information register. Meanwhile, the device 902 may include a device controller 921 and a device driver 922 . In the implementation of the device 902, the device controller 921 may be included in the hardware layer, and the device driver 922 may be included in the software layer.

According to the above-described embodiments, access rights to a memory device (not shown) included in the device 902 may be controlled based on a result of the decision block of the host driver 913 . If the device 902 is connected to the host system 901 in the first direction, only a read operation is possible for content information stored in the memory device, and the device 902 is connected to the host system 901 in the second direction. When connected to , when new content information can be recorded in the memory device, the device 902 may differently set access rights to the memory device according to environment setting control from the host system 901 .

As an example, according to environment setting control from the host system 901, the device driver 922 may differently set access rights to the memory device through a policy manager, and the policy manager controls the read/write control module. It will be possible to set access rights (eg, permission to record new content information, etc.) to the memory device.

Meanwhile, referring to FIG. 12 , the host system 1000 includes a host controller 1010, a Type-C controller 1020, a host driver 1030, an application layer 1040, various types of applications 1050, and connectors. 1070, and may further include a switch module 1060 to enable various controls related to the user environment, such as enabling function modules of the device. In addition, the host driver 1030 may include a transfer controller 1031, a command queue 1032, a command generation block 1033, a decision block 1034, a switch state information register 1035 and a direction information register 1036. can The switch module 1060 is a variety of components capable of receiving user input, and may be implemented as a hardware configuration such as a physical button or as a software configuration such as a user selecting on a screen, and a switch state. The information register 1035 may store information representing a switch state according to a user input.

In an exemplary embodiment, whether to use the user environment according to the connection direction of the device may be determined based on the user input. For example, when a user intends to use a unique function of a device, such as reproduction of content information, regardless of connection direction, a user input may be provided to the host system 1000 to turn off the switch. Accordingly, the decision block 1034 of the host system 1000 may determine whether to enable other function modules, such as a communication module that may be included in the device, by utilizing the switch state information together with the direction information.

13 is a block diagram illustrating a case in which embodiments of the present disclosure are applied to a digital TV (DTV) system.

Referring to FIG. 13 , the DTV system 20 may include a DTV device 1100 and may also include an external device 1200 communicating with the DTV device 1100 according to a USB Type-C interface. In the DTV system 20, the DTV apparatus 1100 may be referred to as a sink device, and the external device 1200 storing content information may be referred to as a source device.

Each of the DTV device 1100 and the external device 1200 may include a connector (not shown) of a USB Type-C structure, and thus the external device 1200 connects to the connector of the DTV device 1100 regardless of direction. can be connected The external device 1200 may receive a command and an address from the controller 1130 included in the DTV apparatus 1100 and perform an operation indicated by the received command. For example, when a plurality of pieces of content information are stored in the memory 1210 of the external device 1200, an access operation for content information indicated by an address may be performed.

The external device 1200 may be, for example, a flash memory-based storage device. The flash memory may include, for example, a NAND flash memory, a NOR flash memory, and the like. The flash memory-based storage device may include, for example, a solid state drive (SSD) or a universal serial bus (USB) based flash drive device. The external device 1200 may be implemented as a removable drive. The external device 1200 may be implemented as a recording medium such as a video compact disk (CD) and a digital video disk (DVD).

In one embodiment, the external device 1200 may store at least one multimedia file as content information. A multimedia file may refer to a file including video data and audio data. Such multimedia files may be compressed in various formats such as Moving Picture Experts Group (MPEG) and DIgital Video EXpress (DivX).

The DTV device 1100 may be an electronic device that processes and reproduces content information (or bitstream). The content information may be a signal including video data and audio data provided from the external device 1200 . Alternatively, the DTV device 1100 may be an electronic device that processes and reproduces a multimedia file selected by a user from among a plurality of multimedia files stored in the external device 1200 . Here, the term reproduction may mean displaying an image according to processed video data, outputting audio according to processed audio data, or displaying image and audio according to processed video data and audio data.

In one embodiment, the DTV device 1100 includes a decoder/encoder 1110, a memory 1120, a controller 1130, a display device 1140, a user input module 1150, a communicator 1160, and a signal input/output module ( 1170) may be included.

The decoder/encoder 1110 may decode the encoded bitstream provided from the controller 1130 and output decoded information. In one embodiment, the bitstream may be extracted from a plurality of multimedia files stored in the external device 1200. Alternatively, in another embodiment, the bitstream may be extracted from content information received from an external server or a broadcasting station. However, it is not limited thereto.

Also, the decoder/encoder 1110 may encode content information such as a multimedia file. In one embodiment, an encoding operation may be performed for a specific function, and as an example, a video thumbnail file including frames encoded through the encoding operation may be generated. The encoding method may be, for example, an MPEG format, but is not limited thereto.

The memory 1120 may read data or write data in response to control of the controller 1130 . For example, the memory 1120 may include a non-volatile memory, store multimedia files provided from the external device 1200, and transfer the stored multimedia files to the decoder/encoder 1110 under the control of the controller 1130. can provide Also, encoded information generated by the decoder/encoder 1110 may be stored in the memory 1120 .

The controller 1130 may control overall operations of the DTV device 1100. The controller 1130 may include a processor such as a central processing unit (CPU), and may further include memory such as a buffer and a register therein.

The controller 1130 may communicate with the external device 1200 of the present disclosure according to a specific communication standard, and may also communicate with at least one other external device. For example, the controller 1130 may include universal serial bus (USB), multimedia card (MMC), embedded MMC (eMMC), peripheral component interconnection (PCI), PCI-express (PCI-E), advanced technology attachment (ATA) , Serial-ATA, Parallel-ATA, SCSI (small computer system interface), ESDI (enhanced small disk interface), IDE (Integrated Drive Electronics), Firewire, UFS (Universal Flash Storage), WIFI, Bluetooth, NVMe It is possible to communicate with the external device 1200 and at least one other device of the present disclosure through at least one of various communication standards such as the like.

The display device 1140 may display an image based on a bitstream processed by the controller 1130, a decoded frame, or a decoded multimedia file. Also, the user input module 1150 may be a module prepared to be manipulated by a user. The user input module 1150 may include various types of input interface related circuits. For example, the user input module 1150 may be implemented in various forms, such as a mechanical or electronic button of the DTV device 1100, a remote controller separated from the main body of the DTV device 1100, a touch pad, or a touch screen.

In one embodiment, the user input module 1150 may receive a selection signal indicating information selected by the user and transmit the selection signal to the controller 1130 . The communicator 1160 may be a bidirectional communication circuit including at least one of components such as a communication module and a communication chip corresponding to various types of wired and wireless communication protocols. The communicator 1160 may include, for example, a Wi-Fi communication chip performing Wi-Fi communication through an access point, a BLE communication chip performing Bluetooth Low Energy (BLE) communication, and a LAN card connected to a router or gateway ( LAN card) can be implemented in various forms.

The signal input/output module 1170 may serve as a communication interface. For example, the signal input/output module 1170 may transmit content information processed by the controller 1130 to the outside. In one embodiment, the signal input/output module 1170 may include a transmitter and a receiver. In this embodiment, the signal input/output module 1170 may transmit and receive signals based on the HDMI transmission standard. The HDMI transmission standard was released until version 2.1.

According to an exemplary embodiment of the present disclosure, the DTV apparatus 1100 may execute various user environments provided by the external device 1200 based on a result of detecting a connection direction of the external device 1200 . For example, even if the communicator 1160 is not provided in the DTV device 1100, if the external device 1200 includes a module supporting wireless communication such as Wi-Fi, the user can enable the communication module in the external device 1200. The external device 1200 can be connected to the DTV apparatus 1100 in a specific direction, so that the DTV apparatus 1100 can perform wireless communication with other external devices (or external systems). In addition, in setting access rights for content information such as multimedia files stored in the external device 1200, the user connects the external device 1200 to the DTV apparatus 1100 in a specific direction to set access rights differently. . For example, modification and deletion of content information may be allowed or not allowed according to access rights to content information, and a security function such as blocking transmission of content information to an external system may be applied.

14 is a diagram illustrating an example implementation of a system in an exemplary embodiment of the present disclosure. In FIG. 14, a case in which a USB device according to embodiments of the present disclosure is mounted on a DTV device in the previous embodiment is illustrated, and a system according to embodiments of the present disclosure shows that the USB device is a smart phone, a tablet, a PC, and the like. It will be applicable even if it is mounted on a computing system.

As shown in FIG. 14, the DTV system 30 includes a DTV device 31 and a USB device 32, and each of the DTV device 31 and the USB device 32 has a connector according to a USB Type-C interface. can include According to the foregoing embodiments, different user environments may be provided according to the direction in which the USB device 32 is connected to the DTV device 31, and the DTV device 31 connects the USB device 32 to the USB device 32 based on the connection direction. It is possible to perform a control operation for setting the operating environment of the .

Alternatively, according to various embodiments, when the DTV device 31 provides information related to the connection direction to the USB device 32, the USB device 32 performs a control operation for setting the operating environment of the DTV device 31. might be able to do For example, the USB device 32 can recognize the connection direction of the USB device 32 based on various information provided from the DTV device 31, and also the manufacturer, product, certification, etc. of the DTV device 31. You will be able to acquire various information related to system operation. Based on the foregoing embodiments, the USB device 32 may transmit a command for environment setting control of the DTV device 31 .

15 is a block diagram illustrating an electronic system in which a device performs environment setting control for a host system, according to an exemplary embodiment of the present disclosure.

Referring to FIG. 15 , an electronic system 40 may include a host system 41 and a device 42 according to embodiments of the present disclosure. As an example, the host system 41 may include a DTV device or a PC. It is a data processing apparatus of various types, and the device 42 may be a device such as a memory card (eg, a USB card) for storing data. In defining the terms of this embodiment, a DTV device or a PC may be defined as a host system and the device 42 may be defined as a slave device, but this is only for convenience of description and the embodiment of the present disclosure is limited to this. no need. For example, in terms of transmitting and receiving data, when a subject transmitting data is defined as a host and a subject receiving data is defined as a slave, a DTV device or PC may be referred to as a slave, and a device such as a memory card may be referred to as a slave. It may also be referred to as a slave.

According to an exemplary embodiment, the host system 41 may include a connector 41_1, a connection direction detector 41_2, and an environment setter 41_3, and the device 42 may include a connector 42_1, a data processor ( 42_2), a setting controller 42_3, and an environment setting unit 42_4. Among the components shown in FIG. 15, detailed descriptions of the components shown in FIG. 1 are omitted.

As the device 42 provides commands to the host system 41 to control operating environment settings of the host system 41, the setting controller 42_3 may be a component included in a driver in the device. In addition, the environment setter 42_4 may set the operating environment of the device 42 based on internal control of the device 42 and/or control from the host system 41 according to the above-described embodiments.

Meanwhile, in an exemplary embodiment, the device 42 may receive direction information from the host system 41 and perform environment setting control for the host system 41 based on the received direction information. The host system 41 may perform an environment setting operation based on various commands defined in the USB Type-C interface.

In an exemplary embodiment, the device 42 differently sets a security level to be allowed to the host system 41 and an access right to information provided in the host system 41 through various types of information from the host system 41 . It is possible to perform a control operation for For example, the device 42 may select one of a variety of configurable operating environments based on various types of information from the host system 41 and transmit the selected one to the host system 41 . Based on various conditions, such as whether the host system 41 corresponds to an approved device, the device 42 sets different levels of data encryption/decryption by the data processor 42_2, and the host system 41 In this way, it will be possible to perform environment setting control operations to perform encryption/decryption operations of different levels. In addition, the host system 41 may store important information related to system operation therein, and based on the environment setting control operation of the device 42, access rights to the main information may be differently set. In addition, based on the environment setting control of the host system described in the above-described embodiments, the device may also perform an environment setting control operation for the host system identically or similarly.

As above, exemplary embodiments have been disclosed in the drawings and specifications. Although the embodiments have been described using specific terms in this specification, they are only used for the purpose of explaining the technical idea of the present disclosure, and are not used to limit the scope of the present disclosure described in the claims. . Therefore, those of ordinary skill in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical scope of protection of the present disclosure should be determined by the technical spirit of the appended claims.

Claims (20)

In the host system communicating with the device,
a connector having a structure connected to the device regardless of direction and having a plurality of pins;
a connection direction detector detecting a direction in which the device is connected to the host system by detecting a signal from at least one first pin among the plurality of pins; and
A setting controller for receiving setting information related to environment settings supported by the device from the device and controlling an environment setting operation for the device based on direction information from the connection direction sensor;
The host system, characterized in that, based on the setting information and the direction information, performs control such that a function module having a unique function provided in the device is selectively enabled. According to claim 1,
The host system performs communication with the device according to a USB (Universal Serial Bus) Type-C interface,
The first pin includes at least one of a CC (configuration channel) 1 pin and a CC2 pin defined in the USB Type-C interface. According to claim 2,
The connection direction detector detects the connection direction of the device based on detecting which pin of the CC1 pin and the CC2 pin is connected to a pull-down resistor defined in the USB Type-C interface provided in the device. A host system characterized in that According to claim 2,
The host system includes a Configuration Channel Integrated Circuit (CCIC) connected to the CC1 pin and the CC2 pin;
The host system, characterized in that the connection direction detector is provided in the CCIC. According to claim 2,
The host system, wherein the setting controller receives the setting information from the device through a Get Descriptor operation defined in the USB Type-C interface. According to claim 2,
The host system, characterized in that the setting controller controls an environment setting operation for the device through a Set Configuration/interface operation defined in the USB Type-C interface. According to claim 1,
The host system may include a non-volatile memory device storing one or more pieces of content information; And connected to the device in the form of a memory card having a communication module that performs wireless communication with other external systems,
Based on the direction information, the host system selectively enables the communication module included in the device. According to claim 1,
The host system may include a non-volatile memory device storing one or more pieces of content information; and an access authority control module for controlling access authority to the nonvolatile memory device.
Based on the direction information, the host system differently sets access rights to the content information stored in the nonvolatile memory device. According to claim 1,
a host controller performing hardware communication with the device through the connector;
an application comprising one or more pieces of software that accesses the device and determines a particular setting or function for the device; and
a host driver converting a request and/or data from the application into a format corresponding to the device and providing the converted data to the host controller;
The host system, characterized in that the setting controller is included in the application or the host driver. According to claim 9,
The host system according to claim 1 , wherein the direction information is used to selectively enable control of the functional module of the device as it is provided to at least one of the application and the host driver. According to claim 1,
The host system includes a digital TV including a display device,
As the function module provided in the device corresponds to a communication module, the host system performs wireless communication with an external system through the communication module provided in the device when the device is connected in a specific direction. host system with . A method of operating a host system communicating with a device, the host system having a USB (Universal Serial Bus) Type-C connector,
Recognizing the device connected through the connector;
detecting a direction in which the device is connected to the host system by detecting a signal from a first pin of at least one of a plurality of pins of the connector;
receiving setting information related to environment settings supported by the device through first control of the device; and
Controlling an environment setting operation for the device through a second control for the device;
The second control is performed based on a result of detecting the connection direction of the device and the setting information received from the device, and according to the second control, a function module having a unique function provided in the device is selectively A method of operating a host system, characterized in that it is controlled to be enabled. According to claim 12,
The first pin includes at least one of a configuration channel (CC) 1 pin and a CC2 pin defined in a USB Type-C interface,
A method of operating a host system according to claim 1 , wherein a connection direction of the device is detected based on which pin of the CC1 pin and the CC2 pin of the host system is connected to a pull-down resistor defined in the USB Type-C interface. . According to claim 12,
The method of operating a host system, characterized in that the first control is performed through a Get Descriptor operation defined in the USB Type-C interface. According to claim 12,
The method of operating a host system, characterized in that the second control is performed through a Set Configuration / interface operation defined in the USB Type-C interface. According to claim 12,
The host system may include a non-volatile memory device storing one or more pieces of content information; And connected to the device in the form of a memory card having a communication module that performs wireless communication with other external systems,
The method of claim 1 , wherein the host system selectively enables the communication module included in the device based on a result of detecting a connection direction of the device. According to claim 12,
The host system includes an application included in a software layer; and a host driver;
The method of operating a host system, characterized in that the direction information generated by detecting the connection direction of the device is provided to at least one of the application and the host driver. In a USB device that communicates with a host system according to a USB (Universal Serial Bus) Type-C interface standard,
a connector having a structure connected to the host system regardless of direction and having a plurality of pins;
a non-volatile memory device for storing one or more pieces of content information and providing the content information to the host system based on a first control from the host system;
a function module having a function for providing one or more user environments to the host system; and
an environment setter configured to set an operating environment of the USB device including control of enable of the function module based on a second control of the host system;
The environment setter disables the function module based on the second control as the USB device is connected to the host system in a first direction, and the USB device is connected to the host system in a second direction. and enabling the function module based on the second control. According to claim 18,
The second control includes a Set Configuration/interface operation defined in the USB Type-C interface. According to claim 18,
The function module includes a communication module supporting wireless communication with other systems other than the host system,
When the function module is enabled, the USB device provides wireless communication between the host system and the other system.

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