Self-diagnostic circuit for logic circuit block

Details Self-diagnostic circuit for logic circuit block Self-diagnostic circuit for logic circuit block

1992-02-14

1993-02-23

Beausolie, Robert W.

Excavating

371 151, 371 221, H04B 1700

Patent

active

051896753

ABSTRACT:
A self-diagnostic circuit comprises a plurality logic of circuits to be diagnosed and a plurality of first and second storage circuits provided for the logic circuits respectively. The first storage circuits have outputs which indicate whether or not the corresponding logic circuits are being diagnosed. The second storage circuits stored results of diagnoses of the corresponding logic circuits. The first and second storage circuits and logic circuits have a sequential diagnostic operation mode in which logic circuits are sequentially diagnosed according to a diagnosis starting signal, and a scan operation mode in which a specific one among the logic circuits is selected and diagnosed. The scan operation mode is realized during the supply of the diagnosis starting signal and by supplying selection signals that select the specific one among the logic circuits.

REFERENCES:
patent: Re33368 (1990-10-01), Darling et al.
patent: 3786431 (1974-01-01), Bouchet et al.
patent: 3961254 (1976-06-01), Cavaliere et al.
patent: 4329640 (1982-05-01), Reiner et al.
patent: 4335425 (1982-06-01), Goto et al.
patent: 4521885 (1985-06-01), Melocik et al.
patent: 4554664 (1985-11-01), Schultz
patent: 4583041 (1986-04-01), Kimura
patent: 4710931 (1987-12-01), Bellay et al.
patent: 4862068 (1989-08-01), Kawashima et al.
patent: 4864579 (1989-09-01), Kishida et al.
patent: 4879718 (1989-11-01), Sanner
patent: 4887267 (1989-12-01), Kanuma
patent: 4893072 (1990-01-01), Matsumoto
patent: 4894830 (1990-01-01), Kawai
patent: 4897838 (1990-01-01), Tateishi
patent: 4912395 (1990-03-01), Soto et al.
patent: 4916388 (1990-04-01), Sano
patent: 4935929 (1990-06-01), Sidman et al.
patent: 4942577 (1990-07-01), Ozaki
patent: 4947357 (1990-08-01), Stewart et al.
patent: 4995039 (1991-02-01), Sakashita et al.

Affiliated with

Also associated with

Rating

Self-diagnostic circuit for logic circuit block does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-diagnostic circuit for logic circuit block, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-diagnostic circuit for logic circuit block will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2211569