Please clarify what you would like to know.
Do you want to know time consuming to switch functionality between GPIO and TIOB?
We would like to know time consuming to switch functionality between GPIO and TIOB.
Is there any other way to actually measure using other GPIOs?
We are sorry for late response...
Could you please let me ask you gain to clarify how you GPIO? (Input or Output)
If you use GPIO as Input, you don't need to switch from TIOB to GPIO. You can read GPIO, even though TIOB is configured.
Refer to the Figure 2-1 Block Diagram of the I/O Port in CHAPTER 10-1: I/O Port, 2.1 Configuration of the I/O Port.
While, if you use GPIO as Output, there shall not timing constrain. External device should be configured for I/O configuration, and it take some time.
Then, you can change from TIOB to GPIO.
At last, there is no spec for the switching time between TIOB and GPIO, due to SW configuration exists.
We use GPIO as input.
We understood that the port can be read without switching the GPIO input to TIOB.
Thank you for your support.