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:
May. 02, 2017
Filed:
Oct. 07, 2015
Apple Inc., Cupertino, CA (US);
Erik P. Machnicki, San Jose, CA (US);
Gurjeet S. Saund, Saratoga, CA (US);
Munetoshi Fukami, Newark, CA (US);
Shane J. Keil, San Jose, CA (US);
Chaitanya Kosaraju, Sunnyvale, CA (US);
Erdem Guleyupoglu, Santa Clara, CA (US);
Jason M. Kassoff, Denver, CO (US);
Kevin C. Wong, Los Altos, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A method and apparatus for interfacing dynamic hardware power managed blocks and software power managed blocks is disclosed. In one embodiment, and integrated circuit (IC) may include a number of power manageable functional units. The functional units maybe power managed through hardware, software, or both. Each of the functional units may be coupled to at least one other functional unit through a direct communications link. A link state machine may monitor each of the communications links between functional units, and may broadcast indications of link availability to the functional units coupled to the link. Responsive to a software request to shut down a given link, or a hardware initiated shutdown of one of the functional units coupled to the link, the link state machine may broadcast and indication that the link is unavailable.