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.

Date of Patent:
Aug. 15, 2000

Filed:

Jun. 01, 1998
Applicant:
Inventor:

Melanie D Typaldos, Buda, TX (US);

Assignee:

Advanced Micro Devices, Inc., Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
710 26 ; 710-8 ; 710-9 ; 710260 ; 710266 ; 711-1 ; 711105 ; 711202 ; 714819 ;
Abstract

An asynchronous serial port is provided in a microcontroller that includes an address matching function that includes character matching functions such that incoming data is compared to match registers for special framing characters. Further, however, address bits are provided within the serial data, and additional matching bits are provided for matching those address bits along with the character data within the matching registers. In this way, not only is framing data detected by the detection of special characters, but a microcontroller can determine when it is being addressed in a multidrop, address bit protocol system by matching the address bit and address data.


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