Implementation I2C Controller by Using FPGA and Applied for 12 bits ADC

This paper presents the implementation of an I
²
C communication controller. The objective is to solve the communication problems between the FPGA and electronic devices, which are communication I
²
C, by mentioning the I
²
C controller design by using finite state machine. From the functions that are designed by using the VHDL language and simulate and perform error checking. After that, a process of synthesis to generate the rtl circuits and programs into the FPGA Spartan 6 using Xilinx Platform cable II. Finally, we have built two experimental board, first a s t he F PGA X C6SLX9 development board. Second, the board includes an electronic device that has the I
²
C communication include 8-bits ADC, 12-bits ADC, 12-bits DAC, RTC, etc. In this paper, the I
²
C controller tried to 12-bits ADC (MCP-3221). It can be used to interface to 12-bits ADC effectively.