Testing system for a data processing unit

Details Testing system for a data processing unit Testing system for a data processing unit

1976-02-04

1977-05-24

Atkinson, Charles E.

Registers

Transfer mechanism

Traveling pawl

235153AK, G06F 1100

Patent

active

040257673

ABSTRACT:
The disclosure describes improved apparatus for setting the states of storage elements in a data-processing system and for responding to the data read out of the storage elements. The apparatus includes a first error detector which enables an initial setting circuit to initially set a first storage element to a predetermined condition in response to an error. The initial setting circuit also disconnects the outputs of a second storage element while that element is receiving reference data and reconnects the outputs of the second storage element after the data has been written into that element. A second error detector monitors the outputs of the first and second storage elements as test signals are conducted to the storage elements.

REFERENCES:
patent: 3519808 (1970-07-01), Lawder
patent: 3780277 (1973-12-01), Armstrong
patent: 3829842 (1974-08-01), Lnagdon et al.
patent: 3831148 (1974-08-01), Greenwald et al.

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