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. 23, 1999
Filed:
Jun. 06, 1996
Applicant:
Inventors:
Kenneth L McIntyre, Jr, Drippings Springs, TX (US);
Colleen M Collins, Austin, TX (US);
Anthony M Reipold, Austin, TX (US);
Robert L Winter, Austin, TX (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
711167 ; 3958004 ; 365227 ; 36523006 ;
Abstract
A data processing system (20) having programmable chip select signal negation. A user programmable 'NEGATE EARLY' value generates a chip select negation one bus cycle before the end of a transaction, giving an external device additional time to disconnect from the current bus cycle before the start of the next bus cycle. Early negation of a chip select signal provides an efficient method of interface with slower devices while providing adding functionality to the chip select signal.