Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Maxim-Integrated/max32672/UART/PNR#0x0
Pin register
Current sampled value of CTS IO
This bit controls the value to apply on the RTS IO. If set to 1, the RTS IO is set to high level. If set to 0, the RTS IO is set to low level.
https://github.com/analogdevicesinc/msdk