I see in the data sheet that the W5500 supports WOL and power down mode, but I have some questions about these functions. What state is power down mode? Is it the same as setting the PHYCFGR register to power down mode?
From what state does WOL wake the chip? How do I enter this state?
It looks to me like if I enter PHY power down mode, I can not receive the magic packet via UDP. What I want to do is sleep my device/enter low energy mode until I receive a wakeup request from my application sending the WOL packet.