The RX clock lane ULPS entry is indicated by assertion of rxulpsclknot (active-Low) along with assertion of ulpsactivenot (active-Low) signal. ULPS exit is marked by reception
of MARK-1 on the line and ulpsactivenot is deasserted. After
receiving MARK-1 for T_WAKEUP time (1 ms minimum), rxulpsclknot is deasserted. This behavior is shown in the following figure.
Figure 1. D-PHY RX (Slave) ULPS Mode Operation for Clock Lane
