Can I set UART1_TX to GPIO input mode on Jetson AGX Orin

Robotics & Edge Computing Jetson Systems Jetson AGX Orin
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On the Jetson AGX Orin platform, I’m trying to multiplex the UART TX pin into standard GPIO mode and set it to input mode to read external digital signals.

I’m experiencing an inconsistency:

UART5_TX (Pin X):

I successfully configured this pin to GPIO mode by modifying Pinmux. I can set the direction of this GPIO to Input.

UART1_TX (Pin Y):

I successfully configured this pin to GPIO mode using Pinmux. However, when I try to set the direction of this GPIO to Input, the operation fails.

Are there any hardware limitations?

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Okay~ I change the category.

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