Test vector indexing method and apparatus

Details Test vector indexing method and apparatus Test vector indexing method and apparatus

1981-10-19

1985-01-08

Krass, Errol A.

Boots, shoes, and leggings

364488, 364490, 364550, 364551, 364579, 371 19, 371 27, G05B 1902, G05B 2302

Patent

active

044930453

ABSTRACT:
A data channel for a digital tester includes a random access local memory containing a main vector sequence, a subroutine vector sequence, and a test vector list. An index register is loaded with the address of the first vector in the list of vectors that is to be inserted as a variable into a vector stream. A sequence instruction selects the index register as the source of a test vector address when a variable vector is to be inserted into the vector stream at a point in a subroutine. The sequence instruction also resets the index register to a state which determines the address of the next variable to be inserted into the test vector pattern.

REFERENCES:
patent: 3634883 (1972-01-01), Kreidermacher
patent: 4008462 (1977-02-01), Kanda
patent: 4038643 (1977-07-01), Kim
patent: 4070565 (1978-01-01), Borrelli
patent: 4091446 (1978-05-01), Demonte et al.
patent: 4287594 (1981-09-01), Shirasaka
patent: 4293950 (1981-10-01), Shimizu et al.
patent: 4307445 (1981-12-01), Tredennick et al.
patent: 4397021 (1983-08-01), Lloyd et al.

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