Apparatus, method and data structure for validation of kernel da

Details Apparatus, method and data structure for validation of kernel da Apparatus, method and data structure for validation of kernel da

1988-11-23

1990-09-18

Atkinson, Charles E.

Excavating

371 162, 371 681, 371 683, G01R 3128

Patent

active

049583476

ABSTRACT:
An apparatus, method and data structure for validating the data bus of a microprocessor-based unit under test in which bit patterns having half as many bits as the width of the data bus are applied to the data bus along with another bit pattern which is either the complemented or true replication of the bit pattern. Evaluation of the resulting bit patterns on the data bus permits a validation of the entire width of the data bus which, if no faults are reported, obviates not only probing of the data bus by the operator but data bus diagnosis, as well. A particular data structure of a preferred bit pattern sequence avoids any fault on any data line being reported as a pass.

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