PCIe device for supporting with a separate reference clock with independent spread spectrum clocking (SSC)(SRIS)

摘要

A PCIe device for supporting SRIS includes a transceiver, a clock signal generator configured to generate a second reference clock signal, a connector in a structure to be connected to a PCIe host, and a selection circuit configured to determine whether a first reference clock signal is supplied through the connector and transmit one of the first reference clock signal and the second reference clock signal to the transceiver according to a result of the determination.