Patent ID: 7272761

Claim:
A method of controlling test data with a boundary latch module having a plurality of latches to facilitate logic built-in self testing of an integrated circuit, the method comprising: (i) providing a plurality of selection devices coupled to a plurality latches of a boundary latch module, the plurality of selection devices for selecting initialization data to store in the plurality of latches of the boundary latch module of the integrated circuit; (ii) utilizing the plurality of selection devices to select the initialization data from a plurality of scan paths of the integrated circuit; (iii) providing the initialization data from at least one of the plurality of latches as at least one output of the integrated circuit; and wherein at least one of a plurality of selection devices coupled to a plurality latches of another boundary latch module selects an external datum provided by an external input to the integrated circuit or a test-pattern datum from test-pattern generator logic of the integrated circuit as at least one input to a logic circuit of the integrated circuit.