Design and Development of I2C Protocol Using VERILOG
The I2C protocol was given by the Philips Semiconductors in order to allow faster devices to communicate with
slower devices and also allow devices to communicate with each other over a serial data bus without data loss. I2C plays an
important role as an interface in communication between devices. Electrically Erasable Programmable Read Only Memory
(EEPROM), Analog to Digital Converter (ADC), Digital to Analog Converter (DAC) and Real Time Clock (RTC) requires an
interface for communication and I2C is used as an interface between them. In this paper, the I2C (Inter-Integrated Circuit;
generically referred to as "two-wire interface") is implemented using Verilog with Field Programmable Gate Arrays (FPGA).
The I2C master bus controller was interfaced with Alter DE1 board, which act as a slave. This module was designed in Verilog
HDL and simulated in Modelsim 10.1c. The design was synthesized using Quartus 11 10.1 tool. Today, testing and verification
are alternatively used for the same thing. Testing of a large design using FPGA consumes longer compilation time in case of
debugging and committing small mistakes.
Keywords - Altera DE1 Board, System Verilog, I2C bus , SDA, SCL.