Semiconductor integrated circuit

Details Semiconductor integrated circuit Semiconductor integrated circuit

1989-04-11

1990-12-25

Smith, Jerry

Excavating

G06F 1100, G01R 3128

Patent

active

049808907

ABSTRACT:
A semiconductor integrated circuit comprises an internal data bus, a first holding part for entering and holding data which are obtained from outside the semiconductor integrated circuit via the internal data bus, a reading part for reading out the data held in the first holding part and for outputting the read out data to the internal data bus, a second holding part for entering and holding the data which is read out by the reading part via the internal data bus, a third holding part for entering and holding test data which are obtained from outside the semiconductor integrated circuit bia the internal data bus, a discriminating part for comparing the data held in the second and third holding part and for obtaining a discrimination result based on whether the compared data coincide, and an output part for outputtting the discrimination result of the discrimination part of the outside of the semiconductor integrated circuit.

REFERENCES:
patent: 4750181 (1988-06-01), McDonald et al.

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