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. 26, 2006
Filed:
Jan. 11, 2005
Applicants:
David Walter Flynn, Cambridge, GB;
David William Howard, Cambridge, GB;
Inventors:
David Walter Flynn, Cambridge, GB;
David William Howard, Cambridge, GB;
Assignee:
ARM Limited, Cambridge, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/289 (2006.01);
U.S. Cl.
CPC ...
Abstract
A latch circuitis described including a function path latch, which may be in the form of a standard flip-flop, together with a data retention latch. The reset signal nreset and the scan enable signal SE are used to control these latches to perform reset, scan, save and restore functions. The save and restore functions serve to save a data value dv from the functional path latchinto the data retention latchand restore this value such that the functional path latch can be powered down without a loss of data.