Abstract: A microcontroller unit (MCU) with a controller area network (CAN) function. The MCU provides a CAN controller for the CAN function, to generate a transmission signal (CANTX) in digital form. The MCU also has a digital signal remapping circuit inside, which remaps the CANTX signal into a first chip output and a second chip output. The MCU has a first pin that outputs the first chip output to drive a differential positive signal line (CANH) of the CAN function. The MCU has a second pin that outputs the second output to drive a differential negative signal line (CANL) of the CAN function.

Abstract: A microcontroller circuit including a detection circuit, a storage circuit, an error counter circuit, a comparison circuit, and a processing circuit is provided. The detection circuit enables a trigger signal and outputs error information in response to the occurrence of an error event. The storage circuit stores the error information. The error counter circuit adjusts the count value according to the number of times that the trigger signal is enabled by the detection circuit. The comparison circuit enables an interruption signal in response to the count value reaching a threshold value. The processing circuit performs a specific operation according to the interruption signal.

Abstract: A packaged integrated circuit including an input-output pin, a first chip and a second chip is provided. The first chip includes a first voltage converter circuit, a second voltage converter circuit, and a data transmission circuit. The first voltage converter circuit, the second voltage converter circuit, and the data transmission circuit are connected in parallel between an internal pin and the input-output pin. The second chip enables the first voltage converter circuit, the second voltage converter circuit, or the data transmission circuit based on the operation mode of the internal pin.

Abstract: A power transmission chip is coupled between an external converter circuit and a controller chip and includes a first transmitting interface, an internal converter circuit, a second transmitting interface, and a processing circuit. The first transmitting interface is coupled to the external converter circuit to receive a conversion voltage. The internal converter circuit processes the conversion voltage to generate an analog signal. The second transmitting interface transmits the analog signal to the controller chip and receives a control command from the controller chip. The processing circuit generates an adjustment signal based on the control command and provides the first adjustment signal to the external converter circuit via the first transmitting interface. The external converter circuit adjusts the conversion voltage based on the adjustment signal.

Abstract: A dynamic protection circuit including an adjustment circuit, a detection circuit, a control circuit, and a counter circuit is provided. The adjustment circuit adjusts an output voltage based on a predetermined value. The detection circuit detects whether the output voltage is higher than an upper-limit value or lower than a lower-limit value. The control circuit changes the predetermined value and disables the detection circuit while the predetermined value is being changed. The counter circuit starts to adjust a count value in response to the detection circuit being disabled. In response to the counter circuit adjusting the count value, the control circuit adjusts the upper-limit value and the lower-limit value to be proportional to the output voltage. In response to the count value being equal to a target value, the counter circuit enables the detection circuit.

Abstract: A control chip providing power to a sink device and including a connection port, an encoder, a decoder, and a control circuit is provided. The connection port provides an output voltage and an inquiry signal to the sink device, and receives an acknowledgement signal provided by the sink device. The encoder generates the inquiry signal. The decoder decodes the acknowledgement signal to generate a decoded result. In a compensation mode, the control circuit obtains an actual voltage received by the sink device according to the decoded result and adjusts the output voltage according to the actual voltage received by the sink device. In a setting mode, the control circuit obtains a protect-point voltage of the sink device according to the decoded result and adjusts the output voltage according to the protect-point voltage of the sink device to prevent the output voltage from being higher than the protect-point voltage.

Abstract: A control method executing a power-off detection operation is provided. An operation voltage provided by a power circuit is detected. In response to the operation voltage being equal to the first detection value, the count value is adjusted. In response to the operation voltage being equal to the second detection value, the first detection value, the second detection value, and the count value are calculated to generate a first slope. A first power-off speed at which the operation voltage drops to the reset voltage is estimated according to the first slope. In a test mode, the first power-off speed is output to a test machine. The test machine determines whether the power circuit is working normally according to the first power-off speed.

Abstract: A heating circuit is provided. The heating circuit is disposed in a chip which has a normal operation temperature range. The heating circuit includes a comparison circuit and a thermal-energy generation circuit. The comparison circuit compares a temperature voltage with a first threshold voltage. The temperature voltage represents a temperature of the chip. The thermal-energy generation circuit is controlled by the comparison circuit. When the temperature voltage is less than the first threshold voltage, the comparison circuit enables the thermal-energy generation circuit to generate thermal energy to raise the temperature of the chip.

Abstract: A touch detection circuit detects whether a key is being touched and includes a comparator, a compensation capacitor, and a voltage control circuit. The comparator includes an inverting input, a non-inverting input, and an output terminal. The compensation capacitor is coupled to the inverting input. The voltage control circuit provides an output voltage to the non-inverting input. In a calibration mode, the voltage control circuit adjusts the output voltage according to the voltage level of the output terminal.

Abstract: A control circuit including a storage circuit, a voltage detection circuit, a processing circuit, and a wake-up circuit is provided. The storage circuit includes a register and stores a program code. The voltage detection circuit detects an external voltage. The processing circuit accesses the register in response to the external voltage reaching a first predetermined voltage. The processing circuit enters a power-down mode in response to the external voltage reaching a second predetermined voltage. In the power-down mode, the processing circuit stops accessing the register. The wake-up circuit determines whether a wake-up event occurs. In response to the wake-up event, the wake-up circuit directs the processing circuit to exit the power-down mode and enter an operation mode. In response to there being no wake-up event, the processing circuit stays in the power-down mode. In the operation mode, the processing circuit executes the program code.

Abstract: A micro controller unit coupled between a master device and a slave device and including a first communication interface, a serial peripheral interface (SPI) circuit, a switch circuit, a second communication interface, and a switching control circuit is provided. The first communication interface receives a first external signal provided by the master device. The SPI circuit is configured to generate an internal signal. The switch circuit uses a second external signal or the internal signal as an output signal according to a control signal. The second communication interface provides the output signal to the slave device. The switching control circuit generates the control signal according to the level of the first external signal.

Abstract: An embodiment of the present disclosure provides an online integrated microcontroller development tool system. Through the present disclosure, a microcontroller block of a suitable model number is selected according to a client requirement, pins of the microcontroller may be arranged, the microcontroller block with the arranged have been pins is connected to a functional component selected by the client, a corresponding circuit structure is generated, and based on the circuit structure, a microcontroller system hardware description code is generated and output. Different from the conventional development platform, the present disclosure helps clients to develop microcontroller application circuits for different applications through a pin required module, a functional component module and a description code project output module. Thus, purposes of simple operation and saving development time can be achieved.

Abstract: An electronic device is provided. The electronic device includes a power pin, a main circuit, and a start-up circuit. The power pin is configured to receive a power supply. The start-up circuit includes a switch coupled between the power pin and the main circuit, a timer and an oscillator. The switch is configured to selectively provide the power supply to the main circuit in response to a control signal. The oscillator, is configured to provide a periodic signal. The timer is configured to provide the control signal to turn on the switch when counting to a start-up time according to the periodic signal, so that the main circuit is configured to provide a fixed voltage according to the power supply.

Abstract: A control circuit and method for detecting a glitch signal on a bus are provided. The control circuit includes: input ends, respectively receiving a data signal and a clock signal from the bus; a counter, for calculating a time or a number of times in a low level period of the clock signal; a comparator, receiving an output of the time counted by the counter and a threshold value, and generating a comparison result by comparing the time and the threshold value; and an error detector, coupled to the comparator to receive the comparison result, and generating an error flag. When the comparison result indicates that there is a level change during the low level period of the clock signal, the error detector generates an error flag.

Abstract: An IC is provided. The IC includes an input pin, a controller, a timer, a first memory, a processor, at least one output pin, an output module coupled to the output pin, and a direct memory access (DMA) device coupled between the output module and the first memory. The controller is configured to provide a first control signal in response to a command from the input pin. The timer is configured to periodically provide a trigger signal according to the first control signal. The processor is configured to store first data in the first memory. The DMA device is configured to obtain the first data from the first memory in response to the trigger signal, and transmit the first data to the output module. The output module is configured to provide the first data to the output pin according to a transmission rate.

Abstract: An IC is provided. The IC includes an input pin, a controller, a timer, a first memory, a processor, at least one output pin, an output module coupled to the output pin, and a direct memory access (DMA) device coupled between the output module and the first memory. The controller is configured to provide a first control signal in response to a command from the input pin. The timer is configured to periodically provide a trigger signal according to the first control signal. The processor is configured to store first data in the first memory. The DMA device is configured to obtain the first data from the first memory in response to the trigger signal, and transmit the first data to the output module. The output module is configured to provide the first data to the output pin according to a transmission rate.

Abstract: An electronic device is provided. The electronic device includes a power pin, a main circuit, and a start-up circuit. The power pin is configured to receive a power supply. The start-up circuit includes a switch coupled between the power pin and the main circuit, a timer and an oscillator. The switch is configured to selectively provide the power supply to the main circuit in response to a control signal. The oscillator, is configured to provide a periodic signal. The timer is configured to provide the control signal to turn on the switch when counting to a start-up time according to the periodic signal, so that the main circuit is configured to provide a fixed voltage according to the power supply.

Abstract: A heating circuit is provided. The heating circuit is disposed in a chip which has a normal operation temperature range. The heating circuit includes a comparison circuit and a thermal-energy generation circuit. The comparison circuit compares a temperature voltage with a first threshold voltage. The temperature voltage represents a temperature of the chip. The thermal-energy generation circuit is controlled by the comparison circuit. When the temperature voltage is less than the first threshold voltage, the comparison circuit enables the thermal-energy generation circuit to generate thermal energy to raise the temperature of the chip.

Abstract: A built-in temperature sensing device of a single chip includes a built-in temperature sensor and a temperature comparator. The built-in temperature sensor senses a single chip temperature of the single chip. The temperature comparator receives the single chip temperature and a threshold temperature, and compares the single chip temperature with the threshold temperature to generate an output signal to take a necessary protection method.

Abstract: A clock adjusting device includes an oscillator, a first counter, a second counter, a count comparator and a threshold comparator. The oscillator transmits an operation clock signal. The first counter counts a reference clock signal, to obtain a reference clock count value. The second counter counts the operation clock signal to obtain an operation clock count value. The count comparator compares the reference clock count value with the operation clock count value, to obtain a candidate correction value. The oscillator adjusts the operation clock signal according to an output correction value. The threshold comparator compares the candidate correction value and an updated threshold. When the candidate correction value is lower than the updated threshold, the candidate correction value is used as the output correction value, and when the candidate correction value exceeds the updated threshold, a current correction value is used as the output connection value.