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:
Apr. 08, 1997
Filed:
Feb. 27, 1996
Clarence D Lewis, Richardson, TX (US);
Mahmoud M Yazdani, Allen, TX (US);
Dinghui Nie, Dallas,, TX (US);
Brian T Deng, Richardson, TX (US);
Matthew J DiMarco, Chicago, IL (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A method and apparatus for a circuit physically realizing a Universal Asynchronous Receive/Transmit (UART) circuit 31, 40 having an automatic flow control feature. A preferred embodiment includes a UART 31 provided with additional control circuitry 39, 34 for automatically pausing transfers from the transmit data circuitry 35, 32 in response to a transition at the CTS (Clear to Send) input, and further provided with control circuitry 39 for automatically asserting and deasserting a RTS (Ready to Send) output when a receiver data threshold is reached.