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. 09, 2016
Filed:
Mar. 17, 2014
Lsi Corporation, San Jose, CA (US);
Sreejit Chakravarty, Mountain View, CA (US);
Avago Technologies General IP (Singapore) Pte. Ltd., Singapore, SG;
Abstract
Methods and systems for generating data transformations to improve ROM yield and programming time. A bit flip register can be configured in association with the ROM and a binary string can be read into the bit flip register on reset. Subsequently, data output from the ROM can be selectively complemented utilizing a content of the bit flip register and the content of the bit flip register can be programmed into the ROM in order to reduce programming time for each ROM. A defective cell can be tolerated by selectively flipping a column with respect to the defective cell to improve yield. A built-in self-test (BIST) engine that generates addresses up to and including content of an address limiting register can be employed to limit the ROM access to a programmed part during testing in order to tolerate defects in any unused location.