Patent ID: 6317853
Filing Date: 2001-11-13
Classification: G06F

Abstract:
An apparatus for producing test data used for detection of defects which occur in manufacturing function blocks of a processor LSI, comprising:a test pattern producing part for: 1) detecting a fault at a block edge of a function block, based on logic data of the function block, with regard to one operation of the processor LSI which operates the function block for the test data to be produced, and 2) applying the test pattern to a block edge of the function block, said test pattern satisfying the conditions of an input signal to the block edge of the function block when an instruction utilizing the one operation is executed by the processor, and the conditions of an output signal from the block edge of the function block are observable from the outside of the processor LSI when the instruction is executed; andan instruction sequence producing part for producing an instruction sequence of machine language for the processor LSI by which an output from the block edge of the function block becomes detectable at an external terminal of the processor LSI.