Invention Grant
- Patent Title: Method to manage current during clock frequency changes
- Patent Title (中): 在时钟频率变化期间管理电流的方法
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Application No.: US14153296Application Date: 2014-01-13
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Publication No.: US09411360B2Publication Date: 2016-08-09
- Inventor: Jong-Suk Lee , Wei-Han Lien , Shih-Chieh R. Wen
- 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: G06F1/08
- IPC: G06F1/08 ; G06F1/32

Abstract:
A system for managing a change in a frequency of a clock signal, including a clock generator configured to output the clock signal, a clock divider coupled to the output of the clock generator, a processor configured to select the frequency of the clock signal, and a clock management circuit. The clock management circuit may be configured to set the clock generator to adjust the clock signal to the selected frequency. The clock management circuit may be further configured to adjust a divisor value of the clock divider in a plurality of steps in response to a determination the clock signal stabilized at the selected frequency. A new divisor value may be selected during each step in the plurality of steps and each step may occur after a given time period.
Public/Granted literature
- US20150198966A1 METHOD TO MANAGE CURRENT DURING CLOCK FREQUENCY CHANGES Public/Granted day:2015-07-16
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