Nxp Usa, Inc.

Hadi Ahmadi Balef

Anis Mahmoud Jarrar

David Russell Tipple

Rishi Bhooshan

Shilpa Gupta

A margin sensing circuit coupled to a flip flop of a critical data path includes a delay generator, a selector circuit which selects a delayed data output from the delay generator, a shadow latch corresponding to the flip flop, a comparator circuit which provides a match error indicator based on a comparison between a latched data output from the flip flop and a latched shadow output from the shadow latch, and an error latch to provide an error indicator based on the match error indicator. A correcting circuit includes a clock delay generator configured to receive a clock and provide a plurality of delayed clocks, and a clock selector circuit to select a delayed clock of the plurality of delayed clocks based on a set of clock select signals, in which each of the flip flop and the shadow latch are clocked by the selected delayed clock.

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Eindhoven, Netherlands

Hadi Ahmadi Balef