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Title: Control circuits for asynchronous circuits

Patent ·
OSTI ID:1531814

The described embodiments include a computing device with one or more asynchronous circuits and control circuits that control the operation of the asynchronous circuits. In some embodiments, the control circuits are arranged in a hierarchy with a top-level control circuit atop the hierarchy and one or more local control circuits lower in the hierarchy. In these embodiments, the top-level control circuit processes operating information for the one or more asynchronous circuits and/or other functional blocks in the computing device to determine an operating state for the computing device. Based on the operating state, the top-level control circuit communicates commands to the local control circuits to cause the local control circuits to operate in corresponding operating modes. Based on a corresponding operating mode command, each local control circuit sets one or more operating parameters for corresponding asynchronous circuits (and/or one or more other functional blocks).

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344; B600716
Assignee:
Advanced Micro Devices, Inc. (Sunnyvale, CA)
Patent Number(s):
9,117,511
Application Number:
14/195,124
OSTI ID:
1531814
Resource Relation:
Patent File Date: 2014-03-03
Country of Publication:
United States
Language:
English

References (13)

Power management patent April 2013
Power control in a data flow processing architecture patent October 2008
Adaptive control of power supply for integrated circuits patent-application April 2011
Method and system for power management patent October 2013
Methods and systems for use-case aware voltage selection patent April 2012
Integrated circuit having a microcontroller unit and methods of controlling the operation mode thereof patent July 2012
System and method for providing adaptive voltage scaling with multiple clock domains inside a single voltage domain patent April 2011
System and method for power optimization in parallel units patent September 2002
Device and method for controlling supply voltage/frequency using information of process variation patent November 2013
System and method for asynchronously and independently controlling core clocks in a multicore central processing unit patent April 2014
Method and Apparatus for Regulating Power Consumption patent-application May 2010
Decoupled Power and Performance Allocation in a Multiprocessing System patent-application May 2014
Minimizing Power Consumption in Asynchronous Dataflow Architectures patent-application September 2014

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