Invention Application
- Patent Title: DEVICE, METHOD AND SYSTEM FOR TRANSPARENTLY CHANGING A FREQUENCY OF AN INTERCONNECT FABRIC
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Application No.: US17440688Application Date: 2020-05-22
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Publication No.: US20220179473A1Publication Date: 2022-06-09
- Inventor: Chen Ranel , Christopher J. Lake , Hem Doshi , Ido Melamed , Vijay Degalahal , Yevgeni Sabin , Reena Patel , Yoav Ben-Raphael , Nimrod Angel , Efraim Rotem , Shaun Conrad , Tomer Ziv , Nir Rosenzweig , Esfir Natanzon , Yoni Aizik , Arik Gihon , Natanel Abitan
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- International Application: PCT/US2020/034346 WO 20200522
- Main IPC: G06F1/324
- IPC: G06F1/324

Abstract:
Techniques and mechanisms for transparently transitioning an interconnect fabric between a first frequency and a second frequency. In an embodiment, the fabric is coupled to an end point device via an asynchronous device. One or more nodes of the fabric operate in a first clock domain based on a clock signal, while the end point device operates in a different clock domain. Controller circuitry changes a frequency of the clock signal by stalling the clock signal throughout a first period of time which is greater than a duration of three cycles of a lower one of the first frequency or the second frequency. After the first period of time, cycling of the clock signal is provided at the second frequency. In another embodiment, the asynchronous device enables the frequency change without preventing communication with the end point device.
Public/Granted literature
- US11789516B2 Device, method and system for transparently changing a frequency of an interconnect fabric Public/Granted day:2023-10-17
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