18.104.22.168.2. ECC Write Backs
If the controller ECC is enabled and a read operation results in a correctable ECC error, the controller corrects the location in memory, if write backs are enabled. The correction results in scheduling a new read-modify-write.
A new read is performed at the location to ensure that a write operation modifying the location is not overwritten. The actual ECC correction operation is performed as a read-modify-write operation. ECC write backs are enabled and disabled through the cfg_enable_ecc_code_overwrites field in the ctrlcfg register.
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