Patent ID: 6205566
Filing Date: 2001-03-20
Classification: G01R

Abstract:
A semiconductor integrated circuit comprising:a storage device including a data input terminal and a control terminal and constituting a part of a scan path;a first circuit section for generating data to be supplied to the data input terminal of the storage device during normal operation; anda second circuit section for generating a signal to be supplied to the control terminal of the storage device during the normal operation;wherein the semiconductor integrated circuit further comprises:a selector for selecting one of an output signal of the first circuit section and an output signal of the second circuit section and supplying the selected signal to the data input terminal of the storage device; anda select signal output circuit for outputting a select signal to the selector, the select signal instructing a select operation of the selector,and wherein the select signal output circuit outputs the select signal instructing that the selector selects the output signal of the first circuit section during the normal operation and outputs the select signal instructing that the selector selects an arbitrary one of the output signal of the first circuit section and the output signal of the second circuit section during testing the semiconductor integrated circuit.