Patent ID: 7529999
Filing Date: 2009-05-05
Classification: G06F,G11C,H01L

Abstract:
1. An integrated circuit arrangement comprising: an input; an output; at least one circuit part configured to perform a functional self test and to provide test results of the functional self test; and a testing unit coupled to the input and output, and coupled to the at least one circuit part via testing lines, which are arranged in a circuit plane above at least one of the at least one circuit part and a further circuit part, wherein the testing unit is configured to start the functional self test when a starting signal is applied to the input, to output the test results at the output, or to evaluate the test results to determine whether the test results have a predefined relationship with predefined values, and to output data indicating the test results at the output, and wherein the circuit arrangement is also configured to internally start the functional self test in order to detect an attack, and the testing unit is configured to evaluate the test results to determine whether the test results have a predefined relationship with predefined values.