clock gating 时钟门控;门控时钟;时脉闸控 power gating 电源门控;功率门控;功率门限 门控时钟(英语:Clockgating),“门控”是指一个时钟信号与另外一个非时钟信号作逻辑输出的时钟。 例如,用一个控制信号 “与” 一个clk,可以控制clk的起作用时间。可以通过关闭芯片上暂时用不到的功能和它的时钟,从而实现节省...
clock gating 时钟门控;门控时钟;时脉闸控 power gating 电源门控;功率门控;功率门限 门控时钟(英语:Clockgating),“门控”是指一个时钟信号与另外一个非时钟信号作逻辑输出的时钟。 例如,用一个控制信号 “与” 一个clk,可以控制clk的起作用时间。可以通过关闭芯片上暂时用不到的功能和它的时钟,从而实现节省...
时钟门控，即clock gating，其核心理念在于通过控制时钟信号，以实现对芯片上部分功能的功率节省。当芯片的某部分功能在短时间内无需运行时，关闭这部分的功能时钟，即可达到降低功耗的目的。这一技术被广泛应用于低功耗设计中，其作用机制在于通过逻辑单元的额外引入、优化时钟树结构等方法，实现对电能的有效...
同时power gating又是个要加钱/增加设计复杂度的活，很容易吃力不讨好。
power gating电源门控；功率门控；功率门限 区别：门控时钟（英语：Clockgating），“门控”是指一个时钟信号与另外一个非时钟信号作逻辑输出的时钟。例如，用一个控制信号“与”一个clk，可以控制clk的起作用时间。可以通过关闭芯片上暂时用不到的功能和它的时钟，从而实现节省电流消耗的目的。门控时钟...
Clock Gating is accomplished by using Clock Gating Integrated Cell (CGIC) which gates the clock to the sequential elements present in its fan-out when the enable signal is logic 0. Power Gating structures may be of two types: Simple Power Gating and State Retention Power Gating. Using the fo...
The power gate and clock gate are electrically connected to a power grid and a clock net, respectively, by the enable wire, and the enable wire is further electrically connected to a latch of the second LPU. A signal wire is electrically connected to the first LPU and to the latch....
在Soc设计中,必然要用到低功耗设计策略。低功耗设计涉及clock gating,power gating,多电压域设计技术。在之前推送的低功耗设计篇提到低功耗设计中常用的一些cell,比如 Isolation cell,level-shifter, AON bu…
Clock Gating and Power Gating are two of the most effective techniques that are applied today for reducing dynamic and leakage power, respectively, in digital CMOS circuits. The combined use of the two solutions, however, poses some challenges in terms of practical integration of the required cont...
In integrated circuits, clocking system consumes a colossal portion of chip power, which includes switching activities of flip-flops, latches, clock distribution networks. Power gating and clock gating are two of the most effective techniques that is applied today for reducing dynamic and leakage pow...