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:
Oct. 18, 1994
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 capturing data signals transmitted on an asynchronous domain bus and transmitting the data signals to a synchronous domain is described. The circuit comprises a data ready circuit and a data buffer circuit. The data ready circuit comprises a first flip flop is coupled to an asynchronous input, a second flip-flop is coupled to the synchronous domain clock and the output of the first flip flop, and a third flip-flop is coupled to the synchronous domain clock and the output of the second flip-flop, the circuit having an output coupled to a circuit output terminal; the third flip flop for providing a synchronous output which reflects an event occurrence on the asynchronous input. Other embodiments are also described.