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These other read levels may be emulated rather than sensed. When a minimum (fewest number of memory cells activated or fewest number of bit errors) has been indicated among the first set of sets of candidate read levels 610, determining read level A 406, the next set of candidate read levels for a next read level may be analyzed. In certain instances, minimum here relates to a minimum number of check nodes (syndrome weights), which may be used as an estimate of BER based on different hypotheses related to the number of senses performed. To obtain syndrome weights, a BES read scan operation may read and decode data using a decoder, and this process may take significant time.

Added by DJM 12 2021