US 11,656,793 B2
Controller for managing cache data, memory system including the same, and method performed by the same
Soo Jin Park, Icheon (KR); Ji Yeun Kang, Icheon (KR); and Won Hyoung Lee, Icheon (KR)
Assigned to SK hynix Inc., Icheon (KR)
Filed by SK hynix Inc., Icheon (KR)
Filed on Oct. 14, 2021, as Appl. No. 17/501,938.
Claims priority of application No. 10-2021-0044876 (KR), filed on Apr. 6, 2021.
Prior Publication US 2022/0317920 A1, Oct. 6, 2022
Int. Cl. G06F 12/00 (2006.01); G06F 3/06 (2006.01); G06F 12/02 (2006.01)
CPC G06F 3/0656 (2013.01) [G06F 3/0604 (2013.01); G06F 3/0659 (2013.01); G06F 3/0673 (2013.01); G06F 12/0246 (2013.01); G06F 2212/7201 (2013.01)] 20 Claims
OG exemplary drawing
 
11. A controller, comprising:
a cache group configured to store data output from a host or a memory device;
an entry table store at least one entry including index information corresponding to a logical address allocated to the data and information on a cache in which the data is stored; and
a cache manager configured to when logical addresses corresponding to first data and second data stored in the cache group are identical to each other, release a first entry including first system information on the first data and generate a second entry including second system information on the second data according to operations in which the first data and the second data are processed, the second data being inputted to the cache group while the first data is stored to the cache group.