I'd like to use the pin named P0_30-ISP_FC0_TXD(A2) as a USART transmitter.
Is this pin an open drain pin by a default mode?
If this pin is an open drain pin, I have to put pull-up resistor.
I don't want to put pull-up resistor.
Please tell me whether pull-up resistor is needed.
In the same way.
When also using D3,P12 pin as a USART transmitter, please tell me whether pull-up resistor is needed.