Invention Grant
- Patent Title: Storage element with multiple clock circuits
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Application No.: US15009200Application Date: 2016-01-28
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Publication No.: US09761303B2Publication Date: 2017-09-12
- Inventor: Abdulkadir U. Diril , Adam T. Moerschell , Anthony P. DeLaurier
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Main IPC: G11C11/00
- IPC: G11C11/00 ; G11C11/419

Abstract:
Techniques relating to providing clock signals to a storage element. Generally, different portions of a given storage element may be clocked according to different schemes. This technique may be pertinent to a storage element that has a portion for which the associated bit values do not change frequently relative to another portion of the storage element. For such a storage element, a high-frequency portion may be clocked upon an access to the storage element, while a low-frequency portion may be clocked only if there is a change in the associated bit values. This technique can be applied to various storage elements, including registers and FIFO buffer entries. An apparatus may be designed such that the low-frequency and high-frequency portions of a storage element do not change during operation. Alternatively, the low-frequency and high-frequency portions of the storage element may be changeable based on a current operating mode of the apparatus.
Public/Granted literature
- US20170221550A1 STORAGE ELEMENT WITH MULTIPLE CLOCK CIRCUITS Public/Granted day:2017-08-03
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