Controlling electrical idle states in retimer outputs

Abstract

This application is directed to controlling an electrical idle state of a retimer of a data communication channel. A receiving side of the retimer obtains an input signal including at least an exit command and a data sequence following the exit command. The exit command requests the retimer to exit a target energy saving state and transmit the data sequence. The retimer splits the input signal into two distinct signals including a control signal carrying the exit command and a data signal carrying the data signal. The retimer extends the exit command carried by the control signal, outputs the control signal carrying the extended exit command at an output of the retimer, and in accordance with a determination that the retimer has been equalized and locked, outputs the data signal carrying the data sequence at the output of the retimer.