Patent ID: 9128150
Filing Date: 2015-09-08
Classification: G01R,G06F,G11C

Abstract:
1. A method for monitoring operations run by a Logic Built-In Self Test (LBIST), the method comprising: providing, on an integrated circuit comprising an LBIST controller, LBIST monitoring logic to monitor at least one control signal for controlling at least one selection of core logic under test on the integrated circuit; tracking, by the LBIST monitoring logic, while a test program is run by the LBIST controller on the at least one selection of core logic under test, whether each at least one control signal is set to an active state; and producing, by the LBIST monitoring logic, a result of the tracking of each at least one control signal for output to a tester, wherein the result indicates each at least one type of operation actually executed on the at least one selection of core logic under test for the test program, such that the tester reading the result is enabled to determine whether each at least one type of operation actually executed on the at least one selection of core logic under test matches an expected at least one type of operation to be executed for the test program.