Patent ID: 11921657
Assignee: SK HYNIX INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A Peripheral Component Interconnect Express (PCIe) interface device, comprising:
a PCIe layer configured to perform communication between a host and a Direct Memory Access (DMA) device;
a link training module configured to perform a link training for the host;
a PCIe register configured to store data information on the PCIe layer; and
a PCIe controller configured to switch an operating clock from a PCIe clock, generated based on a reference clock, to an internal clock, process data of the PCIe layer on the basis of the internal clock, and control the link training module to recover a link for the host, when a reset signal received from the host is asserted or the reference clock is off.