Patent ID: 8488686

Claim:
A method for operating an interface including a transceiver adapted for connection to a communication link, comprising: after a power up event, executing a calibration process in the interface to determine a calibrated parameter value, and storing the calibrated parameter value in memory accessible by the interface, the calibration process including using the transceiver to at least one of transmit signals to, and receive signals from, the communication link; upon restarting the interface after a power down event, accessing the calibrated parameter value stored in the memory, and using the calibrated parameter value to determine a value for an operating parameter, and using the value in the interface, or sending the value on the communication link; and transmitting data on, or receiving data from, the communication after said setting or sending the operating parameter, including executing a portion of a second calibration process in the interface to account for changes in environmental conditions, the portion of the second calibration process including transmitting a calibration pattern from the interface after setting the operating parameter using the calibrated parameter value; and adjusting the value for the operating parameter in response to the second calibration process.