The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 1995
Filed:
Sep. 16, 1992
Jay T Cantrell, Dallas, TX (US);
Edward R Schurig, Plano, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A method and apparatus for a circuit physically realizing a time domain boundary buffer circuit for coupling an asynchronous sequential state machine controller to an asynchronous bus interface is described. A time domain boundary bridge latch circuit comprising a latch coupled to an asynchronous input, a delay element, and further coupled to a signal from the asynchronous sequential machine so that the signal from the asynchronous bus may be reliably captured is coupled to an input of the asynchronous sequential machine. The circuitry is designed to enable the asynchronous sequential machine to sample the asynchronous input as rapidly as possible without metastability errors. A second embodiment is disclosed for coupling an asynchronous sequential machine to a plurality of data bits on an asynchronous bus interface. Additional embodiments and applications are also disclosed.