公开(公告)号：EP1096396A1

公开(公告)日：2001-05-02

申请号：EP00309135.2

申请日：2000-10-17

Applicant: STMicroelectronics, Ltd.

Inventor： Ballam, Peter

IPC: G06F17/50

CPC classification number: G06F17/5022

Abstract: A method is described for distinguishing between an input or output signal on a bi-directional pin of a model of a hardware circuit. The method comprises the steps of for a bi-directional pin of said model applying signals to said pin at a reduced drive strength such that a driven signal on said pin will be superimposed over the applied signal, and comparing the drive strength on the bi-directional pin and responsive to said comparison determining whether the bi-directional pin is an input or output.

Abstract translation: 描述了用于区分硬件电路模型的双向引脚上的输入或输出信号的方法。 该方法包括以下步骤：所述模型的双向引脚以降低的驱动强度将信号施加到所述引脚，使得所述引脚上的驱动信号将叠加在所施加的信号上，并且比较双向引脚上的驱动强度， 并且响应于所述比较确定双向引脚是输入还是输出。