![]() ![]() During this state the transmitter should release the SDA bus to allow the receiver to derive it. When the receiver gets its address, it has to generate the Acknowledge signal.‘1’ in LSB indicates that the Master will read data from the slave.‘0’ in LSB indicates that the Master will write information to a selected slave.The eighth bit (LSB) is a data direction bit (R/W).It allows up to eight devices to operate on the I☬ bus. The next three bits are set by hardware address pins (A0, A1, and A2) which allow the user to modify the I☬ address. ![]() Low-speed peripherals include external EEPROMs, digital sensors, I2C LCD, temperature sensors. It is used for attaching lower-speed peripheral ICs to microcontrollers in short distance communication. It is a short distance serial interface that requires only two bus lines for bi-directional data transfer. I☬ protocol was invented by Philips semiconductors in the 1980s, to provide easy on-board communications between a CPU and various peripheral chips. ![]() We will use PIC16F877A and PIC18F4550 microcontroller for programming examples. In the end, I2C programming examples will be discussed in both compilers. Secondly, we will understand the control and configuration registers of PIC Microcontroller I2C module. At the start, we will see the introduction of I2C communication. We will see I2C code examples with two popular compilers such as MPLAB XC8 and MikroC Pro. This tutorial is an in-depth guide on I2C Communication using PIC Microcontroller. ![]()
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