High speed tester

Details High speed tester High speed tester

1990-10-19

1993-03-16

Atkinson, Charles E.

Excavating

371 221, G01R 3128

Patent

active

051950979

ABSTRACT:
A high speed tester stores the data corresponding to the first and last addresses of each test loop in a high speed cache. In the majority of test addresses, data is transferred from a memory into at least two shift registers and the cache is not accessed. The output of the shift registers are interleaved in a multiplexer to provide two bits of test data for each tester clock cycle. Control circuitry decodes bits associated with each data address and controls presenting data to the shift registers from the memory and the cache. Use of the cache allows a continuous output of test data from the multiplexer during repetitions of a loop and when new test loop are introduced, with no intervals in the data, regardless of whether the data terminates on an address boundary.

REFERENCES:
patent: 3806888 (1974-04-01), Brickman et al.
patent: 4323968 (1982-04-01), Capozzi
patent: 4389614 (1983-06-01), Staiger
patent: 4451918 (1984-05-01), Gillette
patent: 4586181 (1986-04-01), Shimizu
patent: 4598245 (1986-07-01), Groves et al.
patent: 4682330 (1987-07-01), Millham
patent: 4696005 (1987-09-01), Millham et al.
patent: 4730318 (1988-03-01), Bogholtz, Jr. et al.
patent: 4796222 (1989-01-01), Aichelmann, Jr.
patent: 4931723 (1990-06-01), Jeffrey et al.
patent: 4994732 (1991-02-01), Jeffrey et al.
J. S. Liptay, "Structural Aspects of the System/360 Model 85 II The Cache" IBM Systems Journal, vol. 7, No. 1, 1968, pp. 15-21.

Affiliated with

Also associated with

Rating

High speed tester does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High speed tester, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High speed tester will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-356313