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  2. I²C - Wikipedia

    en.wikipedia.org/wiki/I²C

    Clock stretching is the only time in I 2 C where the target drives SCL. Many targets do not need to clock stretch and thus treat SCL as strictly an input with no circuitry to drive it. Some controllers, such as those found inside custom ASICs may not support clock stretching; often these devices will be labeled as a "two-wire interface" and not ...

  3. System Management Bus - Wikipedia

    en.wikipedia.org/wiki/System_Management_Bus

    It carries clock, data, and instructions and is based on Philips' I²C serial bus protocol. [1] Its clock frequency range is 10 kHz to 100 kHz. (PMBus extends this to 400 kHz.) Its voltage levels and timings are more strictly defined than those of I²C, but devices belonging to the two systems are often successfully mixed on the same bus.

  4. Comparison of single-board microcontrollers - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_single-board...

    The board and a POV kit were included in Vol. 27 of the eponymous series. It is unique in having a regular size USB A connector. 1000Pads Luigino [92] Minimalistic version of Arduino: small, without serial converter. Available as a kit, board only or assembled. Smaller than Arduino, with different footprint. Luigino328 [93] ATmega328 16 MHz

  5. Serial Peripheral Interface - Wikipedia

    en.wikipedia.org/wiki/Serial_Peripheral_Interface

    [note 7] On the clock edge, both main and sub shift out a bit to its counterpart. On the next clock edge, each receiver samples the transmitted bit and stores it in the shift register as the new least-significant bit. After all bits have been shifted out and in, the main and sub have exchanged register values.

  6. Arduino Nano - Wikipedia

    en.wikipedia.org/wiki/Arduino_Nano

    The RX and TX LEDs on the board flash when data is being transmitted via the FTDI chip and the USB connection to the computer (but not for serial communication on pins 0 and 1). A SoftwareSerial library allows for serial communication on any of the Nano's digital pins. The ATmega328 also supports I2C and SPI communication.

  7. NXP LPC - Wikipedia

    en.wikipedia.org/wiki/NXP_LPC

    ARM Cortex-M4F and one or two ARM Cortex-M0 core at a maximum clock rate of 204 MHz. Debug interface is JTAG or SWD with SWO "Serial Trace", eight breakpoints and four watch points. JTAG supports both cores, but SWD only supports Cortex-M4F core.

  8. Asynchronous serial communication - Wikipedia

    en.wikipedia.org/wiki/Asynchronous_serial...

    Asynchronous serial communication is a form of serial communication in which the communicating endpoints' interfaces are not continuously synchronized by a common clock signal. Instead of a common synchronization signal, the data stream contains synchronization information in form of start and stop signals, before and after each unit of ...

  9. Power Management Bus - Wikipedia

    en.wikipedia.org/wiki/Power_Management_Bus

    Part II of the PMBus specification covers every standard PMBus command. It also describes the models for managing output power and current, managing faults, converting values to and from the formats understood by a given device, and accessing manufacturer-provided information such as inventory data (model and serial number, etc.) and device ...

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