Dynamic operating point modification in an integrated circuit
AssigneeApple Inc.
InventorsMaziar H. Moallem, Sanjay Mansingh, Richard F. Avra
Life of this patent
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AssigneeApple Inc.
InventorsMaziar H. Moallem, Sanjay Mansingh, Richard F. Avra
Estimating the term…
In one embodiment, an integrated circuit includes a processor, an internal memory, and a memory controller coupled to an external memory. The integrated circuit may support two or more modes of operation, with different operating points. To switch from one operating point to another, code executed by the processor may copy switch code from the external memory into the internal memory, and may jump to the switch code. Executing out of the internal memory, the switch code may communicate with the memory controller to cause the external memory to enter into self-refresh mode. The operating point may be altered, and the switch code may reinitialize the memory controller after the integrated circuit has stabilized at the new operating point. After the memory controller's physical interface circuit has relocked, the external memory may exit self-refresh mode.
A method, in an integrated circuit that includes a processor, an internal memory, and a memory controller coupled to an external memory that is outside of the integrated circuit, the method comprising:
A computer accessible storage medium storing a plurality of instructions which, when executed on a processor in an integrated circuit that also includes an internal memory and a memory controller coupled to an external memory that is outside of the integrated circuit:
A method comprising:
A system comprising:
Dependencies are inferred from the claim text.