Timing check circuit for a functional macro

Details Timing check circuit for a functional macro Timing check circuit for a functional macro

1994-02-22

1995-06-06

Beausoliel, Jr., Robert W.

Excavating

G06F 1100

Patent

active

054228964

ABSTRACT:
Disclosed is a timing check circuit comprising a signal change detector, connected to a first input terminal, a decision window generator for receiving the output of the signal change detector, a decision condition detector, connected to a second input terminal, and an AND gate for obtaining a logical product of the output of the decision window generator and the output of the decision condition detector. The output of this AND gate is connected to a clock input terminal of a flip-flop of a logic cell in a specific system. When there is an output from the AND gate, it is determined that an error has occurred. With this structure, a timing check system designed on the premise that logic cells in a specific system are used can execute timing check for a functional macro constituted of a combination of logic cells in the specific system.

REFERENCES:
patent: 4109236 (1978-08-01), Besenfelder et al.
patent: 4580263 (1986-04-01), Watanabe et al.
patent: 4646297 (1987-02-01), Palmquist et al.
patent: 4674036 (1987-06-01), Conforti
patent: 4686677 (1987-08-01), Flora
patent: 4726022 (1988-02-01), Chan et al.
patent: 4737971 (1988-04-01), Lanzafame et al.
patent: 4920540 (1990-04-01), Baty
patent: 5003256 (1991-03-01), Merrill
patent: 5122978 (1992-06-01), Merrill
Malaiya et al "Modeling and Testing for Timing Faults in Synchronous Sequential Circuit" IEEE Design & Test 1984 pp. 62-74.
Jenny "Missing Pulse Detector" IBM Tech. Disclosure Bulletin vol. 2, No. 4 Dec. 1959 pp. 66-67.
Chu et al. "Efficient Timing Analysis for General Synchronous and Asynchronous Circuits" 1990 IEEE pp. 5-4.1-5-4.4.

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