含异步清零和同步使能的加法计数器 二进制计数器是应用最多、功能最全的计数器之一，含异步清零和同步使能 的加法计数器的具体工作过程-Including synchronous and asynchronous clear to enable the addition counter binary counter is the most widely used one of the most versatile counter with asynchronous clear and spec