> Due to the complexity of the signalling involved with ethernet, a dedicated ASIC is generally used, which takes in data at the frame level, and takes care of

> Due to the complexity of the signalling involved with ethernet, a dedicated ASIC is generally used, which takes in data at the frame level, and takes care of wiggling the electrical lines in the right way over a cable (though there are of course exceptions). Like others in this thread I was hoping I’d see an RJ45 breakout board directly hooked into an STM32 and doing onerous bit banging and keeping it as low level and basic as possible.