System having a port with two operating modes

摘要

Method and system for providing data communication through a port of a system, the port having at least two operating modes, each of which corresponding to a different data rate. Communication with the system is enabled by operating the port in one of the operating modes. The system is switched to operate in another operating mode and the communication with the system is continued in the another operating mode, whenever a predetermined mode switching code is received through the port.