KR20230152996A - Integrated circuit having power mode setting and individual dimming function - Google Patents

Abstract

The present invention is installed in a control target device having at least one input means for inputting a signal by a user, at least one output means for outputting information in a certain form, and a microcontroller unit (MCU), and the micro An integrated circuit (IC) that communicates with the microcontroller unit to control output driving of a corresponding output means among the at least one output means based on an input signal generated from the at least one input means in a form separate and independent from the controller unit. , Integrated Circuit) and has power mode settings and individual dimming functions.

Description

Integrated circuit with power mode setting and individual dimming function {INTEGRATED CIRCUIT HAVING POWER MODE SETTING AND INDIVIDUAL DIMMING FUNCTION}

The present invention relates to an integrated circuit with power mode setting and individual dimming functions.

Various home appliances include an input means for the user to generate an input signal to drive a specific operation of the device, and an output for outputting corresponding specific information to the user based on the input signal generated by the user from such input means. In addition to the means, it is also equipped with a microcontroller unit (MCU) to control a series of processes from detection of input signals to generation and output of output signals.

In other words, the microcontroller unit (MCU), which controls the operating state of the device so that various functions can be provided through signal input and output, is becoming a microcontroller unit (MCU) as the level and type of functions required are increasing through technological advancements. The functional load placed on the MCU is increasing.

Accordingly, various attempts are being made to distribute the workload of the microcontroller unit, and in relation to this, the applicant is independent of the microcontroller unit, outputting visual information on the display through LED light and providing audio information through buzzer sound. In order to provide dedicated hardware related to output drive that distributes the workload related to low-phase output, we applied for “User Input/Output Interface Integrated Circuit” (hereinafter referred to as ‘prior art’) in Republic of Korea Patent Publication No. 10-2213405 as a prior document. There is a bar,

Through this, the applicant developed and presented an integrated circuit that distributed the workload through a microcontroller unit (MCU) in controlling the output drive in conjunction with the input and output means installed in the home appliance.

Furthermore, through the present invention, the applicant proposes that a microcontroller unit (MCU) and an integrated circuit that are independent of the microcontroller unit (MCU) and that are interconnected in controlling the operation of the input means and output means of home appliances can be connected to output means of more diverse specifications. We attempted to develop technology to add a power mode setting function that improved versatility.

In addition, through the present invention, the applicant, unlike the prior art, attempted to develop a technology that can improve the communication speed with a microcontroller unit (MCU) and expand the output form of the output means through control to a greater variety.

The present invention was created to solve the above problems, and the purpose of the present invention is to output visual information on an LED matrix through LED light independently from a microcontroller unit and output audio information on a buzzer through buzzer sound generation. The goal is to provide technology to prepare dedicated hardware related to output drive with distributed load.

In addition, the purpose of the present invention is to provide an integrated circuit that can be connected through a power mode setting function and expand the application range of control target devices that can be installed by diversifying the specifications of controllable output means.

In addition, the purpose of the present invention is to provide an integrated circuit that can further improve the communication speed with a microcontroller unit (MCU) and at the same time expand the output form of the output means through control to a greater variety.

In order to achieve the above object, the present invention provides a control system including at least one input means for inputting a signal by a user, at least one output means for outputting information in a certain form, and a microcontroller unit (MCU). The microcontroller unit is installed in the target device and is separate and independent from the microcontroller unit to control the output drive of the corresponding output means among the at least one output means based on the input signal generated from the at least one input means. In an integrated circuit (IC) that communicates with the microcontroller unit, a signal communication line is established to establish an SDA pin for transmitting and receiving data signals with the microcontroller unit and a clock line with the microcontroller unit. A communication interface having an SCL pin for synchronizing the transmission and reception timing of data signals with the microcontroller unit and an I ² C (Inter-Integrated Circuit) communication protocol with the microcontroller unit; A first output means provided in the control target device and provided in the form of an LED matrix that outputs visual information through the emission of a plurality of LEDs, has a first VIN pin for receiving power from the outside to be used as an operating power, and a first output driver that is connected and controls output driving of visual information through LED light emission of the first output means based on a data signal related to an LED matrix driving command received from the microcontroller unit through the communication interface; and a second VIN pin for receiving power to be used as an operating power source from the outside, and is connected to a second output means that is provided in the control target device and outputs auditory information by making a buzzer sound, and is connected to the microcontroller unit through the communication interface. A second output driver controls output driving of auditory information that produces a buzzer sound of the second output means based on a data signal related to the buzzer driving command received from the second output means, wherein the integrated circuit includes the first VIN pin and the first A first power mode connected to an external power supply that supplies power that applies the same voltage to the 2VIN pin, or connected to each external power supply that supplies power that applies different voltages to the first and second VIN pins. It is set to at least one of the second power modes.

Here, when the integrated circuit is set to the first power mode, an external power supply that supplies power that applies a voltage of 12V to the first VIN pin and the second VIN pin is connected, and the integrated circuit is connected to the second VIN pin. When set to power mode, an external power supply that supplies power that applies a voltage of 5V is connected to the first VIN pin, and an external power supply that supplies power that applies a voltage of 12V is connected to the second VIN pin. .

In addition, the integrated circuit has an ADDR pin that can be connected to one of the VDD pin, the GND pin, the SDA pin, and the SCL pin provided on one side of the integrated circuit, and the type of pin connected to the ADDR pin depends on the type of pin connected to the ADDR pin. It further includes an address information generator (Address Generator) that generates separately distinguished address information, and connects the SDA pin and the SCL pin to the signal communication line and the clock line connected to the microcontroller unit, respectively. A plurality of the integrated circuits can be connected in a connected form, and the plurality of integrated circuits connected as slaves to the microcontroller unit can be distinguished from each other because the address information generated through the address information generator is different.

In addition, the first data signal received from the microcontroller unit to the communication interface via the SDA pin according to a writing communication protocol between the microcontroller unit and the communication interface includes a start bit indicating the start of the signal, Between end bits, A plurality of consecutive bits corresponding to a start bit and indicating slave address information for the target integrated circuit of the first data signal among the plurality of integrated circuits connected as slaves to the microcontroller unit. first address area; and a first type indication bit following the first address area and indicating that the first data signal is a write type, either read or write type; A first command area consisting of a plurality of consecutive bits representing control command information for a specific target register among registers of an integrated circuit that is the target of the first data signal according to the first address area. 2Signal part; and a plurality of consecutive bits representing Truesum information about the result of calculating Truesum indicating the number of bits with '1' among the bits in the first address area, the first type indication bit, and the first command area. It is provided in a form including a third signal portion corresponding to the first truesum area.

Depending on the implementation, the first data signal may include a restart bit indicating restart of the signal between the third signal portion and the end bit; A second command consisting of a plurality of consecutive bits following the restart bit and indicating control command information for a specific target register among the registers of the integrated circuit that is the target of the first data signal according to the first address area. A fourth signal portion corresponding to the area; and a fifth signal portion corresponding to the second Truesum area consisting of a plurality of consecutive bits representing Truesum information for the result of calculating Truesum indicating the number of bits with '1' among the bits in the second command area. It is prepared in a form that includes

In addition, the second data signal received from the microcontroller unit to the communication interface through the SDA pin according to a writing communication protocol between the microcontroller unit and the communication interface includes a start bit indicating the start of the signal, Between end bits, A plurality of consecutive bits corresponding to a start bit and indicating slave address information for the target integrated circuit of the first data signal among the plurality of integrated circuits connected as slaves to the microcontroller unit. second address area; and a second type indication bit following the second address area and indicating that the second data signal is a write type, either a read or a write type. A third command area consisting of a plurality of consecutive bits representing control command information for a specific target register among the registers of the integrated circuit that is the target of the second data signal according to the second address area. 7Signal part; An eighth signal portion corresponding to at least two first writing data areas composed of a plurality of consecutive bits representing writing data information to be provided to a register that is a target of control according to the third command area; and the result of calculating Truesum indicating the number of bits with '1' among the bits in the second address area, the second type indication bit, the third command area, and at least two of the first write data area. A ninth signal portion corresponding to the third Truesum area composed of a plurality of consecutive bits representing Truesum information.

Depending on the implementation, the second data signal may include a restart bit indicating restart of the signal between the ninth signal portion and the end bit; A fourth command consisting of a plurality of consecutive bits that follows the restart bit and represents control command information for a specific target register among the registers of the integrated circuit that is the target of the second data signal according to the second address area. A 10th signal portion corresponding to the area; An 11th signal portion corresponding to at least two second writing data areas composed of a plurality of consecutive bits representing writing data information to be provided to a register that is a target of control according to the fourth command area; and a fourth Truesum area composed of a plurality of consecutive bits representing Truesum information about the result of calculating Truesum indicating the number of bits with '1' among the bits in the fourth command area and at least two of the second write data areas. It is provided in a form that further includes a 12th signal portion corresponding to.

And when the second data signal is a data signal related to an LED matrix driving command used by the first output driver to control output driving of visual information through LED light emission of the first output means, the third command area is the It consists of a plurality of consecutive bits representing control command information for an address assigned to a specific LED to be controlled among a plurality of LEDs constituting the first output means, and the first write data area is specified by the third command area. It consists of a plurality of consecutive bits representing writing data information for a specific brightness level to be controlled among the multi-level brightness levels of the LED, and the first output driver outputs the data based on the second data signal. Among the plurality of LEDs constituting the first output means, individual dimming can be performed on the LED specified by the third command area to the brightness level specified by the first write data area among multi-level brightness levels. there is.

In addition, the third data signal communicated between the microcontroller unit and the communication interface through the SDA pin according to a reading-type communication protocol between the microcontroller unit and the communication interface includes a start bit indicating the start of the signal, Between the end bits, following the start bit, a continuous sequence indicating slave address information for the target integrated circuit of the third data signal among the plurality of integrated circuits connected as slaves to the microcontroller unit. a third address area corresponding to a plurality of bits; And a third type indication bit following the third address area and indicating that the third data signal is a read type among read or write types; including, received from the microcontroller unit through the SDA pin to the communication interface. 13th signal part; Corresponds to a plurality of read data areas composed of a plurality of consecutive bits representing reading data information to be provided from an integrated circuit that is the target of the third data signal according to the third address area, and is transmitted to the microcontroller unit. A 14th signal portion transmitted from the communication interface via the SDA pin; And it corresponds to a fifth Truesum area composed of a plurality of consecutive bits indicating Truesum information about the result of calculating Truesum indicating the number of bits with '1' among the plurality of bits in the read data area, and is connected to the microcontroller unit. A 15th signal portion transmitted from the communication interface via the SDA pin.

According to the present invention, the following effects are achieved.

First, it is possible to provide an integrated circuit as dedicated hardware that can perform tasks related to display driving and buzzer driving independently from the microcontroller unit.

Second, the work load related to the output of visual information on the display through the LED light emission of the microcontroller unit and the buzzer output of auditory information through buzzer sound generation is dispersed and resolved, improving work efficiency in various information processing other than the output drive of the microcontroller unit. It can be improved and the delay problem of other tasks due to output drive can be resolved.

Third, it can be used in connection with not only an LED matrix with specifications that use a 12V voltage power supply as an operating power source, but also an LED matrix with specifications that use a 5V voltage power supply as an operating power source, further expanding the range of power operation. An expanded integrated circuit can be provided.

Fourth, when controlling the LED matrix, individual dimming and RGB dimming can be applied to the multiple LEDs that make up the LED matrix, making it possible to provide more diverse and colorful output types.

Fifth, faster and more efficient communication is possible when performing a write or read type communication protocol between the microcontroller unit of the integrated circuit and the communication interface.

Figure 1 is a diagram showing the external structure and pin connection state of the integrated circuit according to the present invention.
Figure 2 is a block diagram showing the connection structure between the components of the integrated circuit and the input means, output means, and microcontroller unit according to the present invention.
Figure 3 is a circuit diagram showing a connection structure between an integrated circuit, an input means, an output means, and a microcontroller unit according to the first embodiment of the present invention.
Figure 4 is a circuit diagram showing the connection structure between the integrated circuit, the input means, the output means, and the microcontroller unit according to the second embodiment of the present invention.
5 to 8 are diagrams for explaining the structure of the first data signal according to the writing-type communication protocol between the microcontroller unit of the integrated circuit and the communication interface according to the present invention.
9 to 12 are diagrams for explaining the structure of a second data signal according to a writing-type communication protocol between a microcontroller unit of an integrated circuit and a communication interface according to the present invention.
Figures 13 and 14 are diagrams for explaining the structure of a third data signal according to a reading-type communication protocol between a microcontroller unit of an integrated circuit and a communication interface according to the present invention.
Figure 15 is a diagram for illustrating information about addresses assigned to a plurality of LEDs constituting the LED matrix of the first output means connected to the first output driver of the integrated circuit according to the present invention as an example.
Figure 16 shows that the second data signal according to the writing-type communication protocol between the microcontroller unit of the integrated circuit and the communication interface according to the present invention is driven by the first output driver to output visual information through LED light emission of the first output means. This is a diagram to explain the bit structure of the first write data area when it is a data signal related to the LED matrix driving command used to control.
Figures 17 and 18 are photographs showing the actual implementation of individual dimming on the LED matrix of the first output means through the first output driver of the integrated circuit according to the present invention.

Preferred embodiments of the present invention will be described in more detail with reference to the attached drawings, but already well-known technical parts will be omitted or compressed for brevity of explanation.

<Description of integrated circuit components and operating mode>

The present invention includes at least one input means (K) through which a signal is input by the user, at least one output means (L, B) that outputs information in a certain form, and a microcontroller unit (MCU). The corresponding output means (L, B) among the at least one output means is installed in the control target device and is independent from the microcontroller unit (MCU) based on the input signal generated from the at least one input means (K). This relates to an integrated circuit (1000, IC) that controls output driving, and will be described in detail with reference to the block diagram and circuit diagram of FIGS. 1 to 3.

Here, the input means includes an input means (K) provided in the form of a key button.

In addition, the output means includes a first output means (L) provided in the form of an LED matrix that outputs visual information through the emission of a plurality of LEDs, and a second output means (B) that outputs auditory information by emitting a buzzer sound. do.

Ultimately, the integrated circuit 1000 has an independent configuration to distribute the degree of load applied to the operation of the microcontroller unit (MCU) in controlling the operation of accessories such as various modules and sensors installed in the control target device. , distributed control functions can be provided.

For this purpose, the integrated circuit 1000 of the present invention, as shown in Figure 2, includes an input information detector 100, an address information generator 200, a first output driver 300, a second output driver 400, and a communication It includes an interface 500, an oscillator 700, a timing information generator 800, and a display memory 900.

First, the user input/output interface integrated circuit 1000 of the present invention is equipped with a pin configuration on the outside as shown in Figure 1 to connect external devices or components and establish a communication network in the operation of the components described above.

The input information detector 100 is connected to the input means (K) and detects the input signal generated as the user performs an input operation on the input means, thereby providing input information about the input signal detected by the input means (K). detect.

Here, the input information detector 100 detects an input signal generated from an input means (K) such as a key button in a software manner by a conventional microcontroller unit (MCU) and detects information based on this. Furthermore, unlike the storage of detected signals and detected information, it refers to a hardware configuration that can perform the relevant functions independently from the microcontroller unit (MCU).

Specifically, the input information detector 100 detects an input signal generated when a user presses an input means (K) such as a key button, and the press operation is performed based on the detected signal. It is desirable to provide a key scan circuit that can detect input information about the key button.

However, it is not limited to this, and the input information detector 100 can be implemented in various forms such as a separate driver including a key scan circuit, a key matrix, or a module.

Therefore, the input information detector 100 detects the scan pulse and power voltage change of the input signal generated from the input means (K) and recognizes the key button pressed by the user.

That is, one side of the input information detector 100 is connected to a first input means (K) in the form of a key button, and the other side is connected to a microcontroller unit (MCU) through the communication interface 500, The detected input information is provided to the microcontroller unit (MCU) through the communication interface 500.

In addition, depending on the implementation, as shown in Figures 1 and 2, the input information detector 100 may be coupled with an input pin (100P) to be connected to the terminal of the first input means (K), such as a key button shape. .

In addition, the microcontroller unit (MCU) receives the input information provided through the input information detector 100 based on the command generation reference information pre-stored internally, at least one of a data signal related to the LED matrix driving command or a data signal related to the buzzer driving command. It is based on the creation of one or more instructions.

In this regard, the communication interface 500 constructs a network for communication between the previously described microcontroller unit (MCU), the input information detector 100, the first output driver 300, and the second output driver 400. This refers to the entire interface.

Specifically, the communication interface 500 communicates with a microcontroller unit (MCU) based on the input information detected through the at least one input information detector 100 to provide a data signal regarding a driving command corresponding to the input information. It corresponds to the configuration received.

Therefore, when the input information detected through the input information detector 100 is provided to the microcontroller unit (MCU) through the communication interface 500, the microcontroller unit (MCU) provides a driving command corresponding to the input information as feedback. A data signal (a data signal related to an LED matrix driving command or a data signal related to a buzzer driving command to be explained later) is transmitted and provided to the communication interface 500, and the first output driver 300 and the second output driver It can be implemented to be delivered to (400), but is not limited to this.

As shown in FIGS. 1 and 2, the communication interface 500 is a SDA (Serial) interface that establishes a signal communication line 500DL with a microcontroller unit (MCU) to transmit or receive data signals from the microcontroller unit (MCU). Data) pin (500DP), microcontroller unit (MCU), and clock line (500CL) are established to synchronize the timing of transmission and reception of data signals with the microcontroller unit (MCU). SCL (Serial Clock) pin (500CP) ) is provided.

Through this, the communication interface 500 is equipped with a microcontroller unit (MCU) and I ² C (Inter-Integrated Circuit) communication protocol.

Here, the data signal received from the microcontroller unit (MCU) through the signal communication line 500DL to the communication interface 500 via the SDA pin (500DP) is a communication protocol between the microcontroller unit (MCU) and the communication interface 500. It has different packet structures depending on the type.

The address information generator (Address Generator, 200) is provided on one side of the integrated circuit 1000 as shown in Figures 1 and 2, such as the VDD pin (DP), GND (Grond) pin (GP), SDA pin (500DP), or It is equipped with an ADDR (Address) pin (200P) that can be connected to one of the SCL pins (500CP).

Through this, the address information generator 200 generates address information differentiated depending on the type of pin connected to the ADDR pin (200P), VDD pin (DP), GND (GP), SDA pin (500DP), and SCL As the plurality of integrated circuits 1000 can set a total of four address information by connecting one of the pins (500CP), the microcontroller unit (MCU) is set as the master and the plurality of integrated circuits 1000 are slaves. It is possible to perform a separate role as a (Slave).

Specifically, the SDA pin (500DP) and SCL pin (500CP) of a plurality of integrated circuits (1000) are connected to the signal communication line (500DL) and clock line (500CL) connected to the microcontroller unit (MCU). In this form, a plurality of the integrated circuits can be connected, and the plurality of integrated circuits 1000 connected as slaves to the microcontroller unit (MCU) each have different address information generated through the address information generator 200. become distinguishable from each other.

Through this, the plurality of integrated circuits 1000 connected as slaves to the microcontroller unit (MCU) output the first output means (L) implemented as an LED matrix through the first output driver 300, which will be described later. In controlling, it becomes possible to implement it as an RGB LED (three-color LED).

The first output driver 300 sends a data signal related to the LED matrix driving command generated by the microcontroller unit (MCU) based on the input information detected through the input information detector 100 through the communication interface 500. It can be received through, but is not limited to.

In addition, the first output driver 300 has a first VIN pin (NP1) for receiving power from the outside to be used as an operating power, and is provided in the controlled device and is an LED matrix that outputs visual information through the emission of a plurality of LEDs. It is connected to the first output means (L) provided in the form of a (Matrix) and is based on the data signal related to the LED matrix driving command received from the microcontroller unit (MCU) through the communication interface 500. ) Controls the output drive of visual information through LED light emission.

For this purpose, the first output driver 300 includes a segment driver 310, a digit driver 320, and a dimming circuit 330.

More specifically, the first output driver 300 is connected to the microcontroller unit (MCU) and the first output means (L) as shown in FIGS. 2 to 4 to provide a series of signals required for driving the LED matrix. are interconnected during the information processing process.

Here, the microcontroller unit (MCU) is interconnected through the first output driver 300 and the communication interface 500 to establish a mobile communication network of information or signals. Specifically, the LED matrix in the dimming circuit unit 330 ) It is desirable to be connected to a data signal reception part (not shown) related to the driving command.

In other words, one side of the first output driver 300 is connected to a microcontroller unit (MCU) through the communication interface 500, and the other side is connected to a first output means (L) provided as an LED matrix.

First, the segment driver 310 is configured to output an LED matrix driving signal to which a segment pin 310P connected to the segment terminal of the first output means L is coupled.

Next, the digit driver 320 is configured to output an LED matrix driving signal to which a digit pin 320P connected to the digit terminal of the first output means L is coupled.

In this regard, the first output means (L) provided as an LED matrix includes digits (D, Digit) and digits (Digit) forming a digit unit to enable visual display of numbers or letters through LED emission, as shown in Figure 1. It can be seen that the detailed configuration of D) is composed of multiple segments (SE, Segments) within the digit (D) that can vary the display method.

Therefore, the segment driver 310 and the digit driver 320 in the first output driver 300 according to the configuration of the digits (D) and segments (SE) provided to display information of the first output means (L) provided as a display. Each pin structure and connection type for the terminal may be implemented in various embodiments.

In addition, part of the segment pin (310P) coupled to the segment driver 310 can be used as a strobe signal pin for key input, and along with the input pin (100P) connected to the input information detector 100, the matrix It can also perform the function of receiving input signals by configuring.

Through this, the first output driver 300 outputs data to the digit terminal of the first output means (L) through the digit drive 320 based on the data signal related to the LED matrix driving command received from the microcontroller unit (MCU). Whether or not the power supply voltage is applied and whether the power supply voltage is applied to the segment terminal of the first output means (L) through the segment drive 310 when the power supply voltage is applied to the digit terminal of the first output means (L) through the digit drive 320 It is possible to control whether the power voltage is selectively shorted or open.

As a result, the first output driver 300 outputs visual information through LED light emission in a form corresponding to the data signal related to the LED matrix driving command transmitted from the microcontroller unit (MCU) to the first output means (L). can do.

Next, the dimming circuit unit 330 receives a data signal related to the LED matrix driving command from the microcontroller unit (MCU), and displays LEDs for each digit and segment of the first output means (L) in the data signal related to the LED matrix driving command. Each digit and segment of the first output means (L) received from the data signal receiving part (not shown) and the data signal receiving part (not shown) that extract and store information on the display form through on-time information application. The LED turns on over a specific time based on at least one of clock information and timing information obtained from the oscillator (700) and the timing information generator (800) along with information about the display form through application of LED on time information. It includes a display driving signal generator (not shown) that generates an LED matrix driving signal for applying LED on-time information to specific digits and segments in the first output means (L) provided as a matrix.

The LED matrix driving signal generated in this way is transmitted to each of the segment driver 310 and the digit driver 320, and is individually driven and output for each specific digit and segment within the first output means (L) provided as an LED matrix as described above. , visual information such as specific patterns, letters, or numbers are displayed through LED emission.

The second output driver 400 can receive a data signal related to the buzzer driving command generated by the microcontroller unit (MCU) based on the input information detected through the input information detector 100, but is not limited to this.

In addition, the second output driver 400 has a second VIN pin (NP2) for receiving power to be used as an operating power from the outside, and is provided in the controlled device and outputs auditory information by making a buzzer sound (second output means ( It is connected to B) and controls the output drive of auditory information that produces a buzzer sound of the second output means (B) based on the data signal related to the buzzer drive command received from the microcontroller unit (MCU) through the communication interface 500. .

Here, the second output driver 400 is separate and independent from the microcontroller unit (MCU) and controls the buzzer operation on its own, unlike the conventional microcontroller unit (MCU) that processes information in a software manner and outputs a buzzer sound. It refers to a hardware configuration that can perform a function. As an example, it can be implemented with a buzzer driver, but it is not limited to this.

In other words, one side of the second output driver 400 is connected to a microcontroller unit (MCU) through the communication interface 500, and the other side is connected to a second output means (B) provided as a buzzer.

In operating the power related to supplying operating power to the first output driver 300 and the second output driver 400, the integrated circuit 1000 applies the same voltage to the first VIN pin (NP1) and the second VIN pin (NP2). A first power mode connected to an external power supply that supplies power or a second power mode connected to each external power supply that supplies power that applies different voltages to the first VIN pin (NP1) and the second VIN pin (NP2). It can be set to at least one of the power modes, expanding the versatility of application.

As an example, as shown in FIG. 3, when the integrated circuit 1000 is set to operate in the first power mode, a power supply that applies a voltage of 12V to both the first VIN pin (NP1) and the second VIN pin (NP2) An external power supply that supplies can be connected (NL1, NL2).

As another example, as shown in Figure 4, when the integrated circuit 1000 is set to operate in the second power mode, an external power supply source that supplies power to apply a voltage of 5V to the first VIN pin (NP1) This is connected, and an external power supply that supplies power to apply a voltage of 12V to the second VIN pin (NP2) can be connected (NL1', NL2).

Accordingly, in the case of the integrated circuit 1000 according to the present invention, not only the first output means (L) is provided as an LED matrix with specifications that use a power source with a voltage of 12V as an operating power source, but also a power source with a voltage voltage of 5V is used as the operating power source. By being able to connect and use the first output means (L), which is provided as an LED matrix with specifications for use as a power source, the range of power operation can be further expanded.

In addition, writing-type communication or reading-type communication is performed through transmission and reception of data signals based on the I ² C (Inter-Integrated Circuit) communication protocol between the microcontroller unit (MCU) and the communication interface 500. Therefore, in controlling the operations of the first output driver 300 and the second output driver 400, various types of data signals are preset.

First, the first data signal received from the microcontroller unit (MCU) to the communication interface 500 through the SDA pin (500DP) according to a writing communication protocol between the microcontroller unit (MCU) and the communication interface 500. In the case of 1-byte data writing, basically, when one command is commanded, it has a structure as shown in Figure 5.

Specifically, between the start bit (SB) and the end bit (TB), which indicate the start of the signal, it consists of three parts, from the first signal part to the third signal part, and between each signal part, from the communication interface 500. The first response bit (AB1, ACK bit, Acknowledgment bit) is generated to send a response as feedback to the microcontroller unit (MCU).

Here, the first signal part follows the start bit (SB) as shown in FIG. 5 and is the target integration of the first data signal among the plurality of integrated circuits 1000 connected as slaves to the microcontroller unit (MCU). It is connected to the first address area (SA1) and the first address area (SA1) corresponding to a plurality of consecutive bits representing slave address information for the circuit, and the first data signal is a write type of read or write type. It includes a first type indication bit (EB1) indicating that

In addition, as shown in FIG. 5, the second signal part contains control command information for a specific target register among the registers of the integrated circuit 1000 that is the target of the first data signal according to the first address area (SA1). It corresponds to the first command area (CA1) consisting of a plurality of consecutive bits representing .

Here, the register of the integrated circuit 1000 refers to a detailed configuration included in the integrated circuit 1000 and performing various functions related to the control of various input means or output means, for example, the first output driver. (300) and a second output driver (400).

Next, the third signal part has '1' among the bits in the first address area (SA1), the first type indication bit (EB1), and the first command area (CA1), as shown in Figures 5 and 6. It corresponds to the first Truesum area (TA1) consisting of a plurality of consecutive bits representing Truesum information about the result of calculating Truesum indicating the number of bits.

Taking Figure 6 as an example, the number of bits with '1' among the bits in the first address area (SA1) and the first type indication bit (EB1) of the first data signal is '3', and the number of bits with '1' in the first command area ( Since the number of bits with '1' among the bits in CA1) is '2', '00000101' is generated as a plurality of bits representing '5' in the first truesum area (TA1).

In another implementation, the first signal received from the microcontroller unit (MCU) to the communication interface via the SDA pin (500DP) according to a writing-type communication protocol between the microcontroller unit (MCU) and the communication interface 500 In the case of a data signal, when a plurality of commands are sequentially commanded to a target integrated circuit corresponding to the same first address area (SA1), a structure as shown in FIG. 7 is additionally provided.

Specifically, it includes the first signal part, the second signal part, and the third signal part described above between the start bit (SB) and the end bit (TB), which indicate the start of the signal, and the third signal part and the end bit. Between (TB), at least one additional 2 parts, the 4th signal part and the 5th signal part, are added.

In this case as well, a first response bit (AB1, ACK bit, Acknowledgment bit) is generated between each signal part, which sends a response as feedback for reception from the communication interface 500 to the microcontroller unit (MCU).

Here, the fourth signal part is connected to the restart bit (RB) indicating restart of the signal, as shown in Figure 7, and is the target of the first data signal according to the first address area (SA1). It includes a second command area (CA2) composed of a plurality of consecutive bits representing control command information for a specific target register among the registers of the integrated circuit.

Next, as shown in FIG. 7, the fifth signal part is a continuous plurality indicating Truesum information for the result of calculating Truesum indicating the number of bits with '1' among the bits in the second command area (CA2). It corresponds to the second Truesum area (TA2) composed of bits.

Taking Figure 8 as an example, since the number of bits with '1' among the bits in the second command area (CA2) of the first data signal is '2', a plurality of '2' in the second truesum area (TA2) '00000010' is generated as a bit.

Here, when an additional command is commanded to the target integrated circuit corresponding to the same first address area (SA1), the fourth signal part and the fifth signal part are generated sequentially, starting with a new restart bit (RB), and can be continued.

Through this, when sending a continuous first data signal to a specific target integrated circuit, improvement in signal processing speed and efficiency can be expected by eliminating repetition of the first signal portion including the redundant first address area (SA1).

Next, the second message is received from the microcontroller unit (MCU) through the SDA pin (500DP) to the communication interface 500 according to a writing-type communication protocol between the microcontroller unit (MCU) and the communication interface 500. The data signal is 2-byte SRAM Data Writing, and basically has the structure shown in Figure 9 when one command is issued.

Specifically, between the start bit (SB) indicating the start of the signal and the end bit (TB), it consists of four or more parts from the sixth signal part to the ninth signal part, and a communication interface 500 between each signal part. A first response bit (AB1) is generated that sends a response as feedback to the microcontroller unit (MCU).

Here, the sixth signal part follows the start bit (SB) as shown in FIG. 9 and is the target integration of the second data signal among the plurality of integrated circuits 1000 connected as slaves to the microcontroller unit (MCU). A second address area (SA2) corresponding to a plurality of consecutive bits representing slave address information for the circuit is connected to the second address area (SA2), and the second data signal is a write type among read or write types. It includes a second type indication bit (EB2) indicating that

In addition, as shown in FIG. 9, the seventh signal portion is control command information for a specific target register among the registers of the integrated circuit 1000 that is the target of the second data signal according to the second address area (SA2). It corresponds to the third command area (CA3) consisting of a plurality of consecutive bits representing .

Next, the eighth signal part is composed of at least two first writing data areas ( Corresponds to WD1, WD2).

In addition, between the first first write data area (WD1) and the second first write data area (WD2), there is a first response bit that sends a response as feedback to the reception from the communication interface 500 to the microcontroller unit (MCU). (AB1) occurs.

In addition, as shown in Figures 9 and 10, the ninth signal part includes a second address area (SA2), a second type indication bit (EB2), a third command area (CA3), and at least two first write data areas. (WD1, WD2) Corresponds to the third Truesum area (TA3) consisting of a plurality of consecutive bits representing Truesum information about the result of calculating Truesum indicating the number of bits with '1' among the bits.

Taking Figure 10 as an example, the number of bits with '1' among the bits in the second address area (SA2) and the second type indication bit (EB2) of the second data signal is '3', and the number of bits in the third command area ( CA3) The number of bits with '1' among the bits is '2', and the number of bits with '1' among the bits in at least two first write data areas (WD1, WD2) is '3', '00001000' is generated as a plurality of bits representing '8' in the third truesum area (TA3).

In another implementation, the product is received from the microcontroller unit (MCU) through the SDA pin (500DP) to the communication interface 500 according to a writing-type communication protocol between the microcontroller unit (MCU) and the communication interface 500. In the case of a 2-data signal, when multiple commands are sequentially commanded to the target integrated circuit corresponding to the same second address area (SA2), a structure as shown in FIG. 11 is additionally provided.

Specifically, it includes the previously described 6th signal part, 7th signal part, 8th signal part, and 9th signal part between the start bit (SB) and the end bit (TB), which indicate the start of the signal, and the 9th signal Between the part and the end bit (TB), at least one additional three parts, namely, the 10th signal part, the 11th signal part, and the 12th signal part, are added.

In this case as well, a first response bit (AB1) is generated between each signal part, which sends a response as feedback for reception from the communication interface 500 to the microcontroller unit (MCU).

Here, the 10th signal part is connected to the restart bit (RB) and the restart bit (RB) indicating restart of the signal, as shown in FIG. 11, and is the target of the second data signal according to the second address area (SA2). It includes a fourth command area (CA4) composed of a plurality of consecutive bits representing control command information for a specific target register among the registers of the integrated circuit.

Next, as shown in FIG. 11, the 11th signal part is composed of at least two consecutive bits representing writing data information to be provided to the register that is the target of control according to the fourth command area CA4. This corresponds to the above second write data areas (WD3, WD4).

In addition, as shown in FIG. 11, the 12th signal part contains a Truesum indicating the number of bits with '1' among the bits in the fourth command area (CA4) and at least two second write data areas (WD3, WD4). It corresponds to the fourth Truesum area (TA4) consisting of a plurality of consecutive bits representing Truesum information about the calculated result value.

Taking Figure 12 as an example, the number of bits with '1' among the bits in the fourth command area (CA4) of the second data signal is '4', and two or more bits in the second write data areas (WD3, WD4) Since the number of bits with '1' is '7', '00001011' is generated as a plurality of bits representing '11' in the fourth truesum area (TA4).

Here, when an additional command is commanded to the target integrated circuit corresponding to the same second address area (SA2), the 10th signal part, the 11th signal part, and the 12th signal part are generated sequentially, starting with a new restart bit (RB). You can continue.

Through this, when sending a continuous second data signal to a specific target integrated circuit, improvement in signal processing speed and efficiency can be expected by eliminating repetition of the sixth signal portion including the redundant second address area (SA2).

For example, if the second data signal is a data signal related to an LED matrix driving command used by the first output driver 300 to control the output driving of visual information through LED light emission of the first output means (L), The 3-command area CA3 is composed of a plurality of consecutive bits representing control command information about the address assigned to the specific LED to be controlled among the plurality of LEDs constituting the first output means (L).

Here, each of the plurality of LEDs constituting the first output means (L) is assigned an address as shown in FIG. 15 and is preset to be distinguishable from each other, and one of the addresses shown in FIG. 15 is assigned to the third command area (CA3). A plurality of consecutive bits representing are reflected.

In addition, when the second data signal is a data signal related to the LED matrix driving command used by the first output driver 300 to control the output driving of visual information through the LED emission of the first output means (L), the first write As shown in FIG. 16, the data areas (WD1, WD2) contain writing data information for a specific brightness level to be controlled among the multi-level brightness levels of the LED specified by the third command area (CA3). It consists of a plurality of consecutive bits representing .

Through this, the first output driver 300 provides multi-level brightness levels for the LED specified by the third command area (CA3) among the plurality of LEDs constituting the first output means (L) based on the second data signal. Individual dimming can be performed at a brightness level specified by the first write data area.

As shown in Figure 16, each of the first write data areas (WD1, WD2) of the second data signal undergoes a total of 127 steps as the seven bits of b0-b6 are arranged as '0' or '1'. Brightness control becomes possible in detail.

In the case of the integrated circuit 1000 of the present invention, the first output means (L) as an LED matrix whose output is controlled through the first output driver 300 performs individual dimming and RGB dimming as shown in Figures 17 and 18. This is implemented in a variety of ways, enabling various expressions and further enhancing the aesthetics of the output form.

Next, third data is communicated between the communication interface 500 and the microcontroller unit (MCU) through the SDA pin (500DP) according to the reading-type communication protocol between the microcontroller unit (MCU) and the communication interface 500. The signal has the structure shown in Figure 13.

Specifically, it consists of three or more parts from the 13th signal part to the 15th signal part between the start bit (SB) and the end bit (TB), which indicate the start of the signal, and a microcontroller unit (MCU) between each signal part. ), a second response bit (AB2) is generated that sends a response as feedback to the communication interface 500 for reception.

First, as shown in Figure 13, the 13th signal part is a signal area sent from the microcontroller unit (MCU) to the communication interface 500, and is connected to the start bit (SB) and is a slave to the microcontroller unit (MCU). ) and a third address area (SA3) corresponding to a plurality of consecutive bits representing slave address information for the target integrated circuit of the third data signal among the plurality of integrated circuits 1000 connected as ). It follows (SA3) and includes a third type indication bit (EB3) indicating that the third data signal is a read type, either read or write type.

In this case, a first response bit (AB1) is generated that sends a response as feedback for signal reception to the microcontroller unit (MCU) from the communication interface 500.

In addition, as shown in FIG. 13, the 14th signal part is read data to be provided to the microcontroller unit (MCU) from the integrated circuit 1000, which is the target of the third data signal according to the third address area (SA3). Data) corresponds to multiple read data areas (RD1, RD2, RD3, RD4, RD5) composed of a plurality of consecutive bits representing information.

In addition, a second response bit (AB2) is generated between each read data area to send a response as feedback to the communication interface 500 from the microcontroller unit (MCU).

In addition, the 15th signal part calculates Truesum indicating the number of bits with '1' among the bits in the plurality of read data areas (RD1, RD2, RD3, RD4, RD5) as shown in Figures 13 and 14. It corresponds to the fifth Truesum area (TA5) consisting of a plurality of consecutive bits representing Truesum information about the result value.

Taking Figure 14 as an example, since the number of bits with '1' among the bits in the plurality of read data areas (RD1, RD2, RD3, RD4, RD5) of the third data signal is '2', the fifth Truesum area ( In TA5), '00000010' is generated as a plurality of bits representing '2'.

Display memory 900 includes an input information detector 100, a first output driver 300, a second output driver 400, a communication interface 500, and an oscillator 700 in the user input/output interface integrated circuit 1000. ), a separate storage space is provided for recording and storing various information, data, signals, etc. generated or processed through various detailed configurations such as the timing information generator 800.

The embodiments disclosed in the present invention are not intended to limit but illustrate the technical idea of the present invention, and the scope of the technical idea of the present invention is not limited by these examples. The scope of protection should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of rights of the present invention.

1000: integrated circuit
100: Input information detector
100P: input pin
200: Address information generator
200P: ADDR pin
300: first output driver
310: segment driver
310P: Segment pin
320: Digit driver
320P: Digit pin
330: Dimming circuit unit
400: Second output driver
400P: output pin
500: communication interface
500DP: SDA pin 500CP: SCL pin
500DL: Signal communication line 500CL: Clock line
700: Oscillator 800: Timing information generator
900: Display memory 950: Regulator
NP1: 1st VIN pin NP2: 2nd VIN pin
DP: VDD pin GP: GND pin
MCU: Microcontroller Unit
K: input means L: first output means
B: second output means

Claims (9)

It is installed in a control target device having at least one input means through which a signal is input by the user, at least one output means for outputting information in a certain form, and a microcontroller unit (MCU), and is transmitted from the microcontroller unit. An integrated circuit (IC) that communicates with the microcontroller unit to control output driving of a corresponding output means among the at least one output means based on an input signal generated from the at least one input means in a separate and independent form. ) in,
By establishing a signal communication line with the microcontroller unit, an SDA pin for transmitting and receiving data signals with the microcontroller unit and a clock line with the microcontroller unit are established to synchronize the timing of transmission and reception of data signals with the microcontroller unit. A communication interface (Interface) equipped with an SCL pin for the microcontroller unit and an I ² C (Inter-Integrated Circuit) communication protocol;
A first output means provided in the control target device and provided in the form of an LED matrix that outputs visual information through the emission of a plurality of LEDs, has a first VIN pin for receiving power from the outside to be used as an operating power, and a first output driver that is connected and controls output driving of visual information through LED light emission of the first output means based on a data signal related to an LED matrix driving command received from the microcontroller unit through the communication interface; and
It has a second VIN pin for receiving power to be used as an operating power source from the outside, and is connected to a second output means that is provided in the control target device and outputs auditory information by making a buzzer sound, so that it is transmitted from the microcontroller unit through the communication interface. It includes a second output driver that controls the output drive of auditory information that produces a buzzer sound of the second output means based on the data signal related to the received buzzer drive command,
The integrated circuit has a first power mode connected to an external power supply that supplies power that applies the same voltage to the first VIN pin and the second VIN pin, or a power supply that applies different voltages to the first VIN pin and the second VIN pin. Characterized in that it is set to at least one of the second power modes connected to each external power supply supply.
Integrated circuit with power mode settings and individual dimming functions.
According to paragraph 1,
When the integrated circuit is set to the first power mode, an external power supply that supplies power to apply a voltage of 12V to the first VIN pin and the second VIN pin is connected,
When the integrated circuit is set to the second power mode, an external power supply that supplies power to apply a voltage of 5V to the first VIN pin is connected, and supplies power to apply a voltage of 12V to the second VIN pin. Characterized in that an external power supply is connected to
Integrated circuit with power mode settings and individual dimming functions.
According to paragraph 1,
The integrated circuit,
It has an ADDR pin that can be connected to one of the VDD pin, GND pin, SDA pin, or SCL pin provided on one side of the integrated circuit, and provides address information differentiated depending on the type of pin connected to the ADDR pin. It further includes an address generator that generates address information,
A plurality of the integrated circuits can be connected in the form of connecting the SDA pin and the SCL pin to the signal communication line and the clock line connected to the microcontroller unit,
The plurality of integrated circuits connected as slaves to the microcontroller unit are characterized in that the address information generated through the address information generator is different and can be distinguished from each other.
Integrated circuit with power mode settings and individual dimming functions.
According to paragraph 3,
The first data signal received from the microcontroller unit to the communication interface via the SDA pin according to a writing communication protocol between the microcontroller unit and the communication interface is,
Between the start bit and end bit indicating the start of the signal,
A plurality of consecutive bits corresponding to a start bit and indicating slave address information for the target integrated circuit of the first data signal among the plurality of integrated circuits connected as slaves to the microcontroller unit. first address area; and a first type indication bit following the first address area and indicating that the first data signal is a write type, either read or write type;
A first command area consisting of a plurality of consecutive bits representing control command information for a specific target register among registers of an integrated circuit that is the target of the first data signal according to the first address area. 2Signal part; and
The first address area, the first type indication bit, and the first command area are comprised of a plurality of consecutive bits representing Truesum information about the result of calculating Truesum indicating the number of bits with '1' among the bits. Characterized in that it is provided in a form including a third signal portion corresponding to the 1Truesum area.
Integrated circuit with power mode settings and individual dimming functions.
According to paragraph 4,
The first data signal is,
Between the third signal part and the end bit,
A restart bit indicating restart of the signal; A second command consisting of a plurality of consecutive bits following the restart bit and indicating control command information for a specific target register among the registers of the integrated circuit that is the target of the first data signal according to the first address area. A fourth signal portion corresponding to the area; and
A fifth signal portion corresponding to the second Truesum area consisting of a plurality of consecutive bits representing Truesum information for the result of calculating Truesum indicating the number of bits with '1' among the bits in the second command area; Characterized by being prepared in the form of
Integrated circuit with power mode settings and individual dimming functions.
According to paragraph 3,
The second data signal received from the microcontroller unit to the communication interface through the SDA pin according to a writing communication protocol between the microcontroller unit and the communication interface is,
Between the start bit and end bit indicating the start of the signal,
A plurality of consecutive bits corresponding to a start bit and indicating slave address information for the target integrated circuit of the first data signal among the plurality of integrated circuits connected as slaves to the microcontroller unit. second address area; and a second type indication bit following the second address area and indicating that the second data signal is a write type, either a read or a write type.
A third command area consisting of a plurality of consecutive bits representing control command information for a specific target register among the registers of the integrated circuit that is the target of the second data signal according to the second address area. 7Signal part;
An eighth signal portion corresponding to at least two first writing data areas composed of a plurality of consecutive bits representing writing data information to be provided to a register that is a target of control according to the third command area; and
Truesum for the result of calculating the Truesum indicating the number of bits with '1' among the bits in the second address area, the second type indication bit, the third command area, and at least two of the first write data area Characterized in that it is provided in a form including a 9th signal portion corresponding to the 3rd Truesum area composed of a plurality of consecutive bits representing information.
Integrated circuit with power mode settings and individual dimming functions.
According to clause 6,
The second data signal is,
Between the ninth signal part and the end bit,
A restart bit indicating restart of the signal; A fourth command consisting of a plurality of consecutive bits that follows the restart bit and represents control command information for a specific target register among the registers of the integrated circuit that is the target of the second data signal according to the second address area. A 10th signal portion corresponding to the area;
An 11th signal portion corresponding to at least two second writing data areas composed of a plurality of consecutive bits representing writing data information to be provided to a register that is a target of control according to the fourth command area; and
In the fourth Truesum area composed of a plurality of consecutive bits representing Truesum information about the result of calculating Truesum indicating the number of bits with '1' among the bits in the fourth command area and at least two or more bits in the second write data area. Characterized in that it is provided in a form that further includes a corresponding 12th signal portion.
Integrated circuit with power mode settings and individual dimming functions.
According to clause 6,
When the second data signal is a data signal related to an LED matrix driving command used by the first output driver to control output driving of visual information through LED light emission of the first output means,
The third command area is composed of a plurality of consecutive bits representing control command information for an address assigned to a specific LED to be controlled among the plurality of LEDs constituting the first output means, and the first write data area is the first write data area. It consists of a plurality of consecutive bits representing writing data information for a specific brightness level to be controlled among the multi-level brightness levels of the LED specified by the third command area,
The first output driver controls the LED specified by the third command area among the plurality of LEDs constituting the first output means based on the second data signal to the first write data area among multi-level brightness levels. Characterized in performing individual dimming at a brightness level specified by
Integrated circuit with power mode settings and individual dimming functions.
According to paragraph 3,
The third data signal communicated between the microcontroller unit and the communication interface through the SDA pin according to a reading-type communication protocol between the microcontroller unit and the communication interface is,
Between the start bit and end bit indicating the start of the signal,
Following the start bit, it corresponds to a plurality of consecutive bits representing slave address information for the target integrated circuit of the third data signal among the plurality of integrated circuits connected as slaves to the microcontroller unit. a third address area; And a third type indication bit following the third address area and indicating that the third data signal is a read type of read or write type; including, received from the microcontroller unit through the SDA pin to the communication interface. 13th signal part;
Corresponds to a plurality of read data areas composed of a plurality of consecutive bits representing reading data information to be provided from an integrated circuit that is the target of the third data signal according to the third address area, and is transmitted to the microcontroller unit. A 14th signal portion transmitted from the communication interface via the SDA pin; and
It corresponds to the fifth Truesum area composed of a plurality of consecutive bits indicating Truesum information about the result of calculating Truesum indicating the number of bits with '1' among the plurality of bits in the read data area, and is transmitted to the microcontroller unit. Characterized in that it is provided in a form including a 15th signal portion transmitted from the communication interface via the SDA pin.
Integrated circuit with power mode settings and individual dimming functions.