Hello,
According to table in section 12.1 (Pinouts) of the Vybrid Datasheet,
default function of PTA9 is JTDI.
https://www.nxp.com/docs/en/data-sheet/VYBRIDFSERIESEC.pdf
Have a great day,
Yuri
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------