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US 9,958,884 B1Granted
Universal adaptive voltage scaling system
AssigneeMarvell International Ltd.
InventorsJun Zhu, Liping Guo, Joseph Jun Cao
Life of this patent
Estimating the term…
Abstract
A method includes, in at least one aspect, determining a relative delay of a signal path with respect to a timing budget; determining that the signal path is active; determining a value of a voltage being supplied to the signal path; and causing an adjustment in the voltage being supplied to the signal path based on the relative delay, the signal path being active, and the value of the voltage being supplied to the signal path.
Claims28
A method comprising:
- determining a relative delay of a signal path with respect to a timing budget;
- determining that the signal path is active, wherein the determining that the signal path is active comprises determining whether a transition occurred in a signal provided by the signal path;
- determining a value of a voltage being supplied to a domain associated with the signal path;
- and
- causing an adjustment in the voltage being supplied to the domain associated with the signal path based on the relative delay, the signal path being active, and the value of the voltage being supplied to the domain associated with the signal path,
- wherein determining the relative delay of the signal path with respect to the timing budget comprises:
- generating a delayed version of a first signal provided by the signal path in accordance with the timing budget;
- and
- comparing a second signal provided by the signal path to the delayed version of the first signal.
6 more elements
An apparatus comprising:
- circuitry to determine a relative delay of a signal path with respect to a timing budget;
- circuitry to determine that the signal path is active, wherein the circuitry to determine that the signal path is active comprises circuitry to determine whether a transition occurred in a signal provided by the signal path;
- circuitry to determine a value of a voltage being supplied to a domain associated with the signal path;
- and
- circuitry to cause an adjustment in the voltage being supplied to the domain associated with the signal path based on the relative delay, the signal path being active, and the value of the voltage being supplied to the domain associated with the signal path,
- wherein the circuitry to determine the relative delay of the signal path with respect to the timing budget comprises:
- circuitry to generate a delayed version of a first signal provided by the signal path in accordance with the timing budget;
- and
- circuitry to compare a second signal provided by the signal path to the delayed version of the first signal.
6 more elements
An apparatus comprising:
- circuitry to determine a relative delay of a signal path with respect to a timing budget;
- circuitry to determine that the signal path is active, wherein the circuitry to determine that the signal path is active comprises circuitry to determine whether a transition occurred in a signal provided by the signal path;
- circuitry to determine a value of a voltage being supplied to a domain associated with the signal path;
- and
- circuitry to cause an adjustment in the voltage being supplied to the domain associated with the signal path based on the relative delay, the signal path being active, and the value of the voltage being supplied to the domain associated with the signal path,
- wherein the signal path is a first signal path, the timing budget is a first timing budget, the domain is associated with the first signal path and a second signal path, and the apparatus further comprises:
- circuitry to determine a relative delay of the second signal path with respect to a second timing budget;
- and
- circuitry to determine that the second signal path is active,
- wherein the circuitry to cause the adjustment of the voltage being supplied to the domain associated with the first signal path comprises circuitry to cause the adjustment of the voltage being supplied to the domain associated with the first signal path and the second signal path based on at least one of the relative delay of the first signal path or the relative delay of the second signal path, at least one of the first signal path being active or the second signal path being active, and the value of the voltage being supplied to the domain associated with the first signal path and the second signal path.
7 more elements
Dependencies are inferred from the claim text.