US 12,353,732 B2
Memory controller, memory device and storage device including the same
Ho Ryong You, Icheon-si (KR)
Assigned to SK hynix Inc., Gyeonggi-do (KR)
Filed by SK hynix Inc., Icheon-si (KR)
Filed on Jul. 27, 2023, as Appl. No. 18/360,131.
Claims priority of application No. 10-2022-0093147 (KR), filed on Jul. 27, 2022.
Prior Publication US 2024/0036746 A1, Feb. 1, 2024
Int. Cl. G06F 3/06 (2006.01); G06F 11/00 (2006.01)
CPC G06F 3/0625 (2013.01) [G06F 3/0659 (2013.01); G06F 3/0679 (2013.01); G06F 11/004 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A storage device comprising:
a memory device including a system memory configured to store system information used for operations of the memory device, and a register configured to store a register value indicating whether the system information is a first state or a second state; and
a memory controller configured to receive the register value from the memory device when power is turned on, and control the memory device to initialize the system information stored in the system memory when the received register value indicates that the system information is the first state,
wherein in a state where a power voltage of the memory device is in an on state, when the power of the memory controller is changed from an off state to an on state, the memory controller is configured to transmit a first reset command to the memory device,
wherein the memory device includes a reset operation controller configured to determine whether to perform an initialization operation of initializing the system information according to a past reception history of the first reset command, when the first reset command is received from the memory controller, and
wherein when the past reception history exists, the reset operation controller is configured to set the register value to indicate that the system information is the first state.