What does CRS mean in (PD_00_AFR) PAD ALTERNATE FUNCTION REGISTER.
The reference manual of W7500 doesn’t explain clearly. could you please provide me a well explained complete reference document.
CRS means “Carrier Sense Signal”. It is one of the signals making an MII interface, used to communicate with the Ethernet PHY.
On the wizwiki_W7500 board, you can see it is indeed connected to the PHY:
Hope it helped you.
Thanks for your suggestion.