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:
Dec. 18, 2001
Filed:
Jul. 28, 2000
Martin T. Mason, San Jose, CA (US);
Nancy D. Kunnari, Sunnyvale, CA (US);
Harry H. Kuo, San Jose, CA (US);
Atmel Corporation, San Jose, CA (US);
Abstract
A programmable logic chip and configuration memory chip are mounted within a multi-chip module to form a single package. The configuration memory has a security bit which in a first state allows programming and read-back of configuration data in the memory chip via external pins of the package, and in a second state allows only erase command to be communicated to the memory chip via the external pins. The internal data transfer connection between the memory chip and programmable logic chip is enabled when the security bit is in the second state and the memory chip is in a read-back mode, allowing configuration data to be loaded into the logic chip upon power up.