公开(公告)号：US20080077380A1

公开(公告)日：2008-03-27

申请号：US11896943

申请日：2007-09-06

申请人： Kazuhide Tamaki ,  Ryuji Fujita ,  Junichi Nitsuma ,  Takayuki Sasaki

发明人： Kazuhide Tamaki ,  Ryuji Fujita ,  Junichi Nitsuma ,  Takayuki Sasaki

IPC分类号： G06F17/50

CPC分类号： G06F17/5022 ,  G06F17/5036

摘要： As a program tool of the embodiment estimating the peak of power consumption, primary processing is performed in which logic simulation is executed in a first time period to extract operation data of a gated clock for every predetermined section within the first time period, e.g. operation waveform data or data on the number of operations. Then, a narrowed section, which is composed of one or more sections and in which the switching activity per unit time is higher compared to other sections, is discovered, the switching activity being obtained from the operation data, and this narrowed section is taken as a second time period. Then, secondary processing is performed in which logic simulation is executed in the second time period to extract signal waveform data for every clock cycle and obtain power consumption data corresponding to the clock cycles from the extracted signal waveform data.

摘要翻译： 作为估计功耗峰值的实施例的程序工具，执行在第一时间段内执行逻辑模拟的第一处理，以在第一时间段内提取每个预定部分的门控时钟的操作数据，例如， 操作波形数据或操作次数的数据。 然后，发现由一个或多个部分组成并且其中每单位时间的切换活动与其他部分相比更高的变窄部分，从操作数据获得切换活动，并将该缩小部分视为 第二个时期。 然后，进行二次处理，其中在第二时间段中执行逻辑模拟以提取每个时钟周期的信号波形数据，并从所提取的信号波形数据中获得与时钟周期对应的功耗数据。