What's ETH_PPS_OUT in STM32F4x9 MAC.

[tonyyu]

Posted on September 12, 2013 at 21:48

In ethernet MAC block, Port PB5 is assigned as ETH_PPS_OUT. I searched for a while and can find the usage of it. Is it MII_TX_ER?

Sink.

[Tesla DeLorean]

Posted on September 12, 2013 at 22:11

It's a timing signal PPS (Pulse Per Second) and part of the

http://en.wikipedia.org/wiki/Precision_Time_Protocol

support. It consequently has no relationship to the PHY

[afergus]

Posted on April 02, 2015 at 22:37