AM6412: AM6412 multiplexed C19 pin to GPIO1_70 could not output high level

Part Number: AM6412

Tool/software:

Hello TI

The version of SDK I use:processor_sdk_08_06_00_42

We multiplexed the C19 pin to GPIO1_70 at AM6412 unable to output the high level, but as input pin configuration is normal.

According to the description of the data sheet, the pin is an open and leak pin inside. Is this the reason?

f the above reasons can only be solved by adding a pull-up resistor on the hardware, can it be solved from the software? If not, can you provide a responsive solution?