UP CORE PLUS USART VOLTAGE

Earsistemas

Just a quick question: the UP CORE PLUS usart connection, is 3.3V or 5V based?
Thanks

DCleri

on the micro 10pin connector (USB+UART) the UART is 3.3V
on the 100pin connector the UART is 1.8V

Earsistemas

Thanks.
Could you please tell me where this information is given? I need some more information.
Thank you