Patent ID: 11960424
Assignee: SK HYNIX INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 13:
14. A method of operating a peripheral component interconnect express (PCIe) interface device, the method comprising:
changing an operation mode from a first power mode to a second power mode in which power consumption is less than the first power mode in response to a first event that an amount of commands for at least one direct memory access (DMA) device generated based on a request of a host in communication with the PCIe interface device through a link is less than or equal to a reference value;
deactivating at least one or more lanes included in the PCIe interface device;
providing, to the at least one DMA device, an operation clock in the second power mode, the operation clock having a frequency less than a frequency of a operation clock provided in the first power mode based on the number of activated lanes; and
setting a default lane to have a power state different from a power state of the at least one or more lanes in the second power mode.