Hi Duane Allen,
Thank you for your interest in NXP Semiconductor products and the opportunity to serve you.
I was wondering if you can clarify what kind of occasion you mean, external programmer program the MCU or inside ISP upgrade the application code?
And Datasheet hasn't provided these information yet, thanks for your understanding.
Have a great day,
Ping
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------