公开(公告)号：US08819615B2

公开(公告)日：2014-08-26

申请号：US14028188

申请日：2013-09-16

Applicant: STMicroelectronics SA

Inventor： Julien Le Coz ,  Sylvain Engels ,  Alain Tournier

IPC: G06F11/22 ,  G06F17/50

CPC classification number: G06F17/5077 ,  G06F17/505 ,  G06F2217/84

Abstract: A first assembly of critical cells is to be monitored. An equivalent capacitance of output cells coupled to the critical path is determined. Logic level inputs of the critical cells for signal propagation are also determined. A second assembly of control logic cells is provided which copies the first assembly in terms of number of cells, type of cells and cell connection such that each of the control cells is a homolog of a corresponding critical cell. Charge cells are provided at the outputs of the control cells having an equivalent capacitance in accordance with the determined capacitance of the output cells. For each control cell, logic levels are asserted in accordance with the determined configuration of the critical path. A signal generator applies a signal the input of the second assembly and a signal receiver is coupled to the output of the second assembly.

Abstract translation: 要监测关键电池的第一组装。 确定耦合到关键路径的输出单元的等效电容。 信号传播的关键单元的逻辑电平输入也被确定。 提供了控制逻辑单元的第二组件，其根据单元的数量，单元的类型和单元连接复制第一组件，使得每个控制单元是相应的关键单元的同源物。 根据所确定的输出单元的电容，在具有等效电容的控制单元的输出处提供充电单元。 对于每个控制单元，根据确定的关键路径的配置来确定逻辑电平。 信号发生器将信号施加到第二组件的输入端，信号接收器耦合到第二组件的输出。