Digital switching activity sensing

The invention relates to digital switching activity sensing. Clock enable signals are collected and summed. The number of simultaneously enabled clock enable signals may represent switching activity within the system, and may be used as an indication of power management, noise management, etc. for such systems. Digital switching activity sensing includes performing an operation of summing an amount of open clock gates associated with a plurality of latches grouped into a plurality of subsets of latches. An activity indication is generated based at least in part on a result of the operation of summing the amounts of open clock gates associated with the plurality of latches. 本公开涉及数字切换活动感测。时钟启用信号被收集且求和。同时启用的时钟启用信号的数目可表示系统内的切换活动，且可用作此类系统的电力管理、噪声管理等的指示。数字切换活动感测包含执行对与分组成多个锁存器子集的多个锁存器相关联的开放时钟门的量进行求和的操作。至少部分地基于对与所述多个锁存器相关联的开放时钟门的所述量进行求和的所述操作的结果来生成活动指示。