AnsweredAssumed Answered

Regarding drive strength

Question asked by Surendra Jadhav on Jan 14, 2018
Latest reply on Jan 15, 2018 by Yuri Muhin



We are working on ENET2 interface of i.MX6UL. We have observed one thing that when we keep drive strength enable value for ethetnet signals (except clock) to 240 ohm, ethernet communication work.

However if we make drive strength enable to 40 ohm, ethernet communication does not work.

Can you clarify that reducing drive strength enable value reduces drive strength of the pin and increasing drive strength enable value increases drive strength of the pin?

We thought that when we increasing value for 240 ohm, it reduces current as per ohms law and 40 ohm increase current value and thereby drive strength.

Please confirm.