Hi @lewu1 ,
Thank you for your interest in NXP Semiconductor products and for the opportunity to serve you.
Q1:Can pin GPIO_SPI_B1_00~GPIO_SPI_B1_07 be configured as the PhaseA or PhaseB input?
A1: I double checked pin GPIO_SPI_B1_00~GPIO_SPI_B1_07, and I don't believe these pins can be configured as the PhaseA or PhaseB input.
Q2: If not, can pin GPIO_AD_B0_08~GPIO_AD_B0_11 be configured as the PhaseA or PhaseB input?
A2: Yes, GPIO_AD_B0_08~GPIO_AD_B0_11 pins can be configured as the PhaseA or PhaseB input.
For your better understanding, I post some figs for you.


Wish it helps you
Best Regards
MayLiu