Autodetection of a PCI express device operating at a wireless RF mitigation frequency

摘要

A computer system that detects for a PCI Express compliant endpoint device is described. Specifically, the computer system clocks transmit and receive circuits at a first frequency and initiates a training sequence. If the endpoint device successfully trains at the first frequency, the endpoint device is PCI Express compliant. Otherwise, the computer system initiates another training sequence at a second frequency.