WIZnet Developer Forum

Question about shematic

should i use buffer between pins SCS and SEN?

Im waiting for your answer , please give me a hand…

Hi.
I suggest using only 3.3V signals, if you use 5v put a buffer ON ANY SIGNAL also on 5v compatible pin to remove any delay.
If you have to use SPI put SEN high or low if use parallel mode… do not need the buffer.

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