About UART operation

[kojimiura]

UART2_SIN is pulled down with 10kΩ.
When not using UART2 (DUART registers remain at their initial values)
1. Will it harm my device?
2. Would you like to receive data?
3. Is it possible for the CPU to be interrupted for some reason?
4. Is it okay if the Divisor setting value is zero?
Thank you.

[yipingwang]

When not using UART2 , the response for the above-stated queries are as follows:
1. Will it harm my device
No

2. Would you like to receive data?
No

3. Is it possible for the CPU to be interrupted for some reason?
No

4. Is it okay if the Divisor setting value is zero?
Does not matter.

[kojimiura]

What do you think after that?

[yipingwang]

Discussing with the AE team.

[kojimiura]

Since the internal clock of UART2 is disabled, Start bit is not detected. Is this understanding correct?

[yipingwang]

Yes, correct.

[kojimiura]

Thank you.