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:
Mar. 21, 2017
Filed:
Oct. 03, 2014
Atish Ghosh, Austin, TX (US);
Atish Ghosh, Austin, TX (US);
MICROCHIP TECHNOLOGY INCORPORATED, Chandler, AZ (US);
Abstract
A method for controlling a configuration in an integrated circuit device with at least one controllable input/output port having a data output driver, a data input driver, a controllable pull-up resistor, a controllable pull-down resistor, each connected with an external pin of the integrated circuit device, has the steps of: enabling only the pull-up resistor and reading the associated input through the data input driver as a first bit; enabling only the pull-down resistor and reading the associated input through the data input driver as a second bit; tri-stating the first port and reading the associated input through the data input driver as another bit; encoding a value from the read bits; and determining a firmware operation form the encoded value.