4.13.2 Configuring Wake-up

The sleep/wake module is powered by the externally protected continuous VDDAU supply and detects a wake condition when the device is in the SLEEP state. This module monitors wake-up activity on the MDI interface and/or wake pulses on the WAKE_IN pin to determine if the device has received wake-up signaling. Once wake-up signaling has been received and validated, this module will drive the INH pin high to the VDDAU supply to enable the external switched power supplies.

Prior to entering the SLEEP state, the host controller must configure the device to select one or both of these wake methods.