Patent ID: 9257162
Filing Date: 2016-02-09
CPC Classification: G11C

Claim Text:
1. An integrated circuit comprising: a first set of storage cells to store a first set of settings to configure a functional circuit at a first time; a second set of storage cells to store a second set of settings to reconfigure the functional circuit at a second time that is later than the first time; and at least one control cell comprising a fuse link which may be set to a first setting to use the first set of settings stored in the first set of storage cells, or the second set of settings stored in the second set of storage cells, to control one or more operating parameters of the functional circuit, wherein configuration or reconfiguration of the functional circuit is achieved by providing the settings already stored in the first set of storage cells or the alternate settings already stored in the second set of storage cells to the functional circuit without changing the first set of storage cells or the second set of storage cell during the configuration or the reconfiguration; a multiplexer, controlled by an output of the at least one control cell, and having a first set of inputs coupled to outputs of the first set of storage cells, and a second set of inputs coupled to outputs of the second set of storage cells; wherein the outputs of the multiplexer control the one or more operating parameters of the functional circuit.