US 12,277,064 B2
Method for operating memory system, memory controller, memory system and electronic device
Tao Zhang, Wuhan Hubei (CN)
Assigned to Yangtze Memory Technologies Co., Ltd., Wuhan (CN)
Filed by Yangtze Memory Technologies Co., Ltd., Hubei (CN)
Filed on Dec. 29, 2022, as Appl. No. 18/091,025.
Application 18/091,025 is a continuation of application No. PCT/CN2022/132692, filed on Nov. 17, 2022.
Prior Publication US 2024/0168886 A1, May 23, 2024
Int. Cl. G06F 12/08 (2016.01); G06F 12/02 (2006.01); G06F 12/0891 (2016.01); G06F 12/14 (2006.01)
CPC G06F 12/0891 (2013.01) [G06F 12/023 (2013.01); G06F 12/1425 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for operating a memory system, the memory system comprising a memory controller and a memory device, the memory controller being coupled to the memory device, the memory device having a first space and a second space, the first space having an initial size, a storage mode for the first space being a first mode, a storage mode for the second space being a second mode, a write speed of the second mode being lower than that of the first mode, the method comprising:
in response to a first space flush command for performing a flush operation that empties the first space, restoring an available size of the first space to the initial size of the first space by configuring a part of a free space of the memory device as an available space of the first space in a case where a size of the free space is greater than or equal to a first threshold, the free space of the memory device including a free space in the first space and a free space in the second space.