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What is 12c communication?
I2C communication is the short form for inter-integrated circuits. It is a communication protocol developed by Philips Semiconductors for the transfer of data between a central processor and multiple ICs on the same circuit board using just two common wires. This is a type of synchronous serial communication protocol.
What are the four I2C modes of operation?
The I2C module may be configured to operate in the following modes:
- I2C slave, 7-bit addressing,
- I2C slave, 10-bit addressing, and.
- I2C master, 7- or 10-bit addressing.
What are the advantages of I2C?
What Are the Advantages of I2C? I2C vs UART vs SPI
- maintains low pin/signal count even with numerous devices on the bus.
- adapts to the needs of different slave devices.
- readily supports multiple masters.
- incorporates ACK/NACK functionality for improved error handling.
How long can I2C lines be?
So the maximum bus length of an I2C link is about 1 meter at 100 Kbaud, or 10 meters at 10 Kbaud. Unshielded cable typically has much less capacitance, but should only be used within an otherwise shielded enclosure.
What is the purpose of the I2C bus?
The I2C bus is a very popular and powerful bus used for communication between a master (or multiple masters) and a single or multiple slave devices. Figure 1 illustrates how many different peripherals may share a bus which is connected to a processor through only 2 wires, which is one of the largest benefits
How does the I2C hardware work how does it work?
How I2C Hardware Works. This allows for features like the concurrent operation of more than one I2C master (if they are multi-master capable) or stretching (slaves can slow down communication by holding down SCL). Together with the wire capacitance Cp, the termination resistor Rp affects the temporal behaviour of the signals on SDA and SCL.
How does the I2C communication protocol work like SPI?
Like SPI, I2C is synchronous, so the output of bits is synchronized to the sampling of bits by a clock signal shared between the master and the slave. The clock signal is always controlled by the master. How I2C Works With I2C, data is transferred in messages.
What kind of wires are used in I2C?
Like UART communication, I2C only uses two wires to transmit data between devices: SDA (Serial Data) – The line for the master and slave to send and receive data. SCL (Serial Clock) – The line that carries the clock signal.