This paper introduces the interrupt disposal process of the VIC,and analyzes the working principle and explain the operating method.At last,particularly expatiate software program design based on VIC.

• 首先介绍了VIC的中断处理过程,然后分析了VIC工作原理,并说明了VIC操作方法,最后重点阐述了基于VIC的软件编程设计。