[Question] serial control signals physical pins

[bennymeg]

Regarding serial control signals:

• Is there a documentation about the default serial control signals pin mapping?
  I.e. if I want to send CTS (clear to send) signal, what physical GPIO pin should I use?
• Is it possible to map serial control signal to a specific GPIO pin?

[FDelporte]

I guess you should use default pins for serial: UART pins in BCM mode are: 14, 15

https://pinout.xyz/pinout/uart#

[bennymeg]

I am talking about the control signals.
I think the answer is that I need to change the GPIO function to ALT3 or ALT5 to enable this functionality.