| CPC G06F 11/1008 (2013.01) [G06F 12/0292 (2013.01); G06F 2212/2022 (2013.01)] | 18 Claims |
|
1. A memory controller for controlling a read operation of a memory device, the memory controller comprising:
a map data storage configured to store map data including mapping information between a logical address provided from a host and a physical address mapped to the logical address; and
a read operation controller configured to receive, from the host, a read request and a target logical address corresponding to the read request, acquire a first physical address mapped to the target logical address from the map data, and obtain first data stored at the first physical address of the memory device,
wherein, when an error of the first data is an uncorrectable error, the read operation controller is configured to acquire a second physical address previously mapped to the target logical address before the first physical address, obtain second data stored at the second physical address, and provide the host with the second data and information representing occurrence of the uncorrectable error in response to the read request.
|