Patent ID: 11922044
Assignee: SILICON MOTION, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. A control method for a non-volatile memory, comprising:
performing safety moving of valid data of an erasure unit that contains raw data that is read from the non-volatile memory and determined as undesirable data, to safely move the valid data of the erasure unit, wherein the raw data in the non-volatile memory is regarded as being in a deteriorated physical address;
prior to moving the raw data in the safety moving, changing the raw data so that it is different from the undesirable data;
accessing the non-volatile memory through a plurality of channels;
providing a plurality of registers correspond one-to-one with the channels; and
when determining that the raw data is the undesirable data, programing a register corresponding to a channel reading the undesirable data to flag the channel as a flagged channel.