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MSP430F5419A: Do pin pull-up resistors stay enabled when pin is configured for UART Rx operation?

Derek
Mastermind 9792 points
Part Number: MSP430F5419A

Hello,

I'm getting noise on a UART Rx pin when it is disconnected so I want to tame it with a pull-up resistor. If I enable a pull-up resistor on a pin, and then select module

For example, pin P3.5 is the uart receive pin I want to use. If I set

P3REN = BIT5 (to enable the resistor)

P3OUT = BIT5  (to configure the resistor as a pull-UP)

P3SEL = BIT5 (to select peripheral module function for this pin)

Then will the pull-up resistor still be enabled; e.g. is this the same as adding an external pull-up resistor?

   I looked through the datasheet and family user guide but couldn't find the answer.

Thanks,
Derek

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