Wake-on-LAN (WoL) provides a mechanism to detect specific frames and notify the connected controller through either register status change, GPIO indication, or an interrupt flag. The WoL feature within the DP83826 device allows for connected devices residing above the Physical Layer to remain in a low power state until frames with the qualifying credentials are detected. This device supports WoL Magic Packet™ frame type. When a qualifying WoL frame is received, the device WoL logic circuit generates a user-defined event (either pulses or level change) through the GPIO pins or a status interrupt flag to inform a connected controller that a wake event has occurred. The device includes a cycle redundancy check (CRC) gate to prevent invalid packets from triggering a wake-up event. The Wake-on-LAN feature includes:

• Identification of WoL frames in all supported speeds (100BASE-TX and 10BASE-Te)
• Wake-up interrupt generation upon reception of a WoL frame
• CRC error checking of WoL frames to prevent interrupt generation from invalid frames
• Magic Packet technology with SecureOn password protection