Adjustable power rail multiplexing
First Claim
1. An integrated circuit comprising:
- a first power rail;
a second power rail;
a load power rail;
multiple power-multiplexer tiles coupled in series in a chained arrangement and configured to jointly perform a power-multiplexing operation, each power-multiplexer tile configured to switch between coupling the load power rail to the first power rail and coupling the load power rail to the second power rail; and
adjustment circuitry configured to adjust at least one order in which the multiple power-multiplexer tiles perform at least a portion of the power-multiplexing operation.
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Accused Products
Abstract
An integrated circuit (IC) is disclosed herein for adjustable power rail multiplexing. In an example aspect, an IC includes a first power rail, a second power rail, and a load power rail. The IC further includes multiple power-multiplexer (power-mux) tiles and adjustment circuitry. The multiple power-mux tiles are coupled in series in a chained arrangement and implemented to jointly perform a power-multiplexing operation. Each power-mux tile is implemented to switch between coupling the load power rail to the first power rail and coupling the load power rail to the second power rail. The adjustment circuitry is implemented to adjust at least one order in which the multiple power-mux tiles perform at least a portion of the power-multiplexing operation.
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Citations
30 Claims
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1. An integrated circuit comprising:
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a first power rail; a second power rail; a load power rail; multiple power-multiplexer tiles coupled in series in a chained arrangement and configured to jointly perform a power-multiplexing operation, each power-multiplexer tile configured to switch between coupling the load power rail to the first power rail and coupling the load power rail to the second power rail; and adjustment circuitry configured to adjust at least one order in which the multiple power-multiplexer tiles perform at least a portion of the power-multiplexing operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An integrated circuit comprising:
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a first power rail; a second power rail; a load power rail; multiple power-multiplexer tiles coupled in series in a chained arrangement and configured to perform a power-multiplexing operation including switching between coupling the load power rail to the first power rail and coupling the load power rail to the second power rail, the power-multiplexing operation having at least one order that is determined by the series in which the multiple power-multiplexer tiles are coupled for the chained arrangement; and adjustment means for adjusting the at least one order in which the multiple power-multiplexer tiles are to perform at least a portion of the power-multiplexing operation. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A method for adjustable power rail multiplexing in an integrated circuit, the method comprising:
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supplying power to a circuit load via a first power rail while a load power rail is coupled to the first power rail; decoupling the load power rail from the first power rail as part of a power-multiplexing operation; coupling the load power rail to a second power rail as part of the power-multiplexing operation; supplying power to the circuit load via the second power rail while the load power rail is coupled to the second power rail; and during the power-multiplexing operation, providing a signal to establish a duration of a short-circuit current condition between the first power rail and the second power rail. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. An apparatus comprising:
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a circuit load; a first power rail; a second power rail; a load power rail that is coupled to the circuit load; multiple power-multiplexer tiles disposed in a chained arrangement and configured to propagate a power rail selection signal between consecutive power-multiplexer tiles in a first direction along the chained arrangement to disconnect the first power rail from the load power rail and to propagate a feedback control signal between consecutive power-multiplexer tiles in a second direction along the chained arrangement to connect the second power rail to the load power rail; and adjustment circuitry configured to enable establishment of a timing of an occurrence of a connection of the second power rail to the load power rail at a particular power-multiplexer tile of the multiple power-multiplexer tiles. - View Dependent Claims (29, 30)
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Specification