Error correcting code poisoning for memory devices and associated methods and systems
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United States of America Patent
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Dec 20, 2022
Grant Date -
May 12, 2022
app pub date -
Nov 9, 2020
filing date -
Nov 9, 2020
priority date (Note) -
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Abstract
Memory devices, systems including memory devices, and methods of operating memory devices are described, in which memory devices are configured to poison data based on an indication provided by a host device coupled with the memory devices. The indication may include which one or more bits to poison (invert) at which stages of performing write or read operations. In some embodiments, the memory device may invert one or more bits according to the indication and then correct one or more errors associated with inverting the one or more bit to verify its on-die ECC functionality. In some embodiments, the memory device may provide the host device with poisoned data including one or more bits inverted according to the indication such that the host device may test system-level ECC functionality using the poisoned data.
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