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US 9,680,478 B2Granted
Initializing a ring counter
AssigneeSilicon Laboratories Inc.
InventorsTufan Karalar, David Huitse Shen
Life of this patent
Estimating the term…
Abstract
A technique includes driving a node of a stage of a ring counter to a predetermined signal state; and clocking the ring counter to cause the signal state to propagate to at least one additional stage of the ring counter to initialize the ring counter with a reset sequence.
Claims13
A method comprising:
- establishing a partial reset sequence for a ring counter, wherein the ring counter comprises a plurality of stages associated with a plurality of nodes, and establishing the partial reset sequence comprises driving a subset of nodes of the plurality of nodes to initialize the plurality of nodes to the partial reset sequence;
- and
- clocking the ring counter to propagate the partial reset sequence to initialize the ring counter with a reset sequence.
An apparatus comprising:
- a ring counter comprising a plurality of stages associated with a plurality of nodes;
- and
- a controller coupled to the ring counter and adapted to drive a subset of nodes of the plurality of nodes to establish a partial reset sequence and clock the ring counter to cause the partial reset sequence to propagate to at least one other node of the plurality of nodes to initialize the ring counter with a reset sequence.
An apparatus comprising:
- an integrated circuit comprising a ring counter and a controller, wherein:
- the ring counter comprises a plurality of stages associated with a plurality of nodes, and
- the controller is adapted to drive a subset of nodes associated with the plurality of stages to initialize the plurality of nodes to a predetermined partial reset sequence and clock the ring counter to cause the partial reset sequence to propagate to at least one other node associated with the plurality of nodes to reset the ring counter.
Dependencies are inferred from the claim text.