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:
Jun. 19, 2018
Filed:
Mar. 14, 2017
Xilinx, Inc., San Jose, CA (US);
Xiaobao Wang, Cupertino, CA (US);
VSS Prasad Babu Akurathi, Hyderabad, IN;
Sasi Rama S. Lanka, Challapalli, IN;
XILINX, INC., San Jose, CA (US);
Abstract
A pull-up leg of disclosed circuitry includes a pull-up pre-driver and a pull-up driver coupled to the pull-up pre-driver. A pull-down leg includes a pull-down pre-driver and a pull-down driver coupled to the pull-down pre-driver. An input/output pad is coupled between the pull-up driver and pull-down driver. A driver-and-termination control circuit is coupled to receive a tristate control signal, a termination control signal, and an input data signal. The driver-and-termination control circuit selects a drive mode, tristate mode, or termination mode in response to the tristate control signal and the termination control signal. The driver-and-termination control circuit drives a first data signal to the pull-up driver and drives a second data signal to the pull-down driver. The first and second data signals have equal logic states in the drive mode and have opposite logic states in the tristate and termination modes.