The characteristics of the virtual I~2C Bus technique is introduced, and the design of the virtual I~2C Bus realized in the VHDL language is described. A way of initializing the SAA7111 is given in the end.

• 介绍了虚拟I2C总线的特点,描述了用VHDL语言实现虚拟I2C总线技术的设计,最后给出了对SAA7111进行初始化的方法。