Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Maxim-Integrated/max32665/SPIXFC/SS_POL#0x0
SSPOL_0=lo
SPIX Controller Slave Select Polarity Register.
Slave Select Polarity.
0 (lo): Active Low.
1 (hi): Active High.
https://github.com/analogdevicesinc/msdk