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:
Nov. 22, 2011
Filed:
Jan. 28, 2008
Tuyet Ngoc Simmons, Monte Sereno, CA (US);
Madan Mohan Patra, Santa Clara, CA (US);
Tuyet Ngoc Simmons, Monte Sereno, CA (US);
Madan Mohan Patra, Santa Clara, CA (US);
Xilinx, Inc., San Jose, CA (US);
Abstract
Testing an integrated circuit (IC) having numerous terminals coupled to numerous digitally controlled impedance (DCI) modules, where the numerous DCI modules control configurable impedances of the numerous terminals. The IC further includes a control circuit having outputs coupled to enable inputs of the numerous DCI modules, where operating the IC in a test mode configures the control circuit to selectively couple a control signal to the enable terminals of the numerous DCI modules. One DCI module of the numerous DCI modules can be enabled at a time facilitating testing of the configurable impedances of the I/O terminals.