System and method for repairing a memory column
AssigneeSilicon Graphics, Inc.
InventorAjay Bhatia
Life of this patent
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Abstract
A system for repairing a memory column includes a multiplexer operable to receive a first data bit and a second data bit. The multiplexer is operable to select one of the first data bit and the second data bit. The system also includes a control generator operable to receive a control signal indicating an error in the first data bit. The control generator is operable to generate a select signal, and the multiplexer is operable to select the second data bit in response to the select signal.
Claims20
A system for repairing a memory column, comprising:
- a multiplexer operable to receive a first data bit and a second data bit, the second data bit being adjacent to the first data bit in a memory data word, the multiplexer operable to select one of the first data bit and the second data bit;
- and
- a control generator operable to receive a control signal indicating an error in the first data bit, the control generator operable to generate a select signal, the multiplexer operable to select the second data bit in response to the select signal.
A method for repairing a memory column, comprising:
- receiving a first data bit;
- receiving a second data bit, the second data bit being adjacent to the first data bit in a memory data word;
- a determining whether the first data bit is erroneous;
- generating a select signal in response to the first data bit being erroneous;
- and
- selecting the second data bit for output in response to the select signal.
A system for repairing a memory column, comprising:
- a first memory column operable to receive a stored first data bit;
- and
- a second memory column operable to receive a stored second data bit, the second data bit being adjacent to the first data bit in a memory data word, the second memory column operable to provide the second data bit to the first memory column, the first memory column operable to select one of the first data bit and the second data bit.
Dependencies are inferred from the claim text.