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.

Date of Patent:
Aug. 31, 2010

Filed:

Sep. 11, 2008
Applicants:

Jun Pin Tan, Kuala Lumpur, MY;

Wei Yee Koay, Penang, MY;

Boon Jin Ang, Penang, MY;

Choong Kit Wong, Penang, MY;

Guang Sheng Soh, Gemas, MY;

Inventors:

Jun Pin Tan, Kuala Lumpur, MY;

Wei Yee Koay, Penang, MY;

Boon Jin Ang, Penang, MY;

Choong Kit Wong, Penang, MY;

Guang Sheng Soh, Gemas, MY;

Assignee:

Altera Corporation, San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

In mask programmable integrated circuit, such as a structured ASIC, a delay chain provides a delay that is set by a mask programmable switch. The delay chain receives an input to allow the delay mask programmed delay to be overridden using a JTAG controller. This allows testing of different delays. The input may also be provided by a fuse block, so that the fuse block can override the mask programmable switch, thus allowing a delay to be changes after mask programming.


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