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:
Sep. 09, 2014
Filed:
Mar. 29, 2011
Norman L. Rogers, Miami, FL (US);
Monte J. Dalrymple, Livermore, CA (US);
Lynn S. Wood, Davis, CA (US);
Steve J. Hardy, Woodland, CA (US);
Norman L. Rogers, Miami, FL (US);
Monte J. Dalrymple, Livermore, CA (US);
Lynn S. Wood, Davis, CA (US);
Steve J. Hardy, Woodland, CA (US);
Digi International Inc., Minnetonka, MN (US);
Abstract
A method and apparatus for digital I/O expander chip with multi-function timer cells have been disclosed. A series of match reload registers load a series of match registers which are driven by a master counter. The status of the match registers can be retrieved through ports. The master counter is reloaded on rollover by a count limit register. The master counter has increment/decrement control and the rollover can be used in an interrupt control block to generate an interrupt request.