SWCU191 February 2022 CC1311P3 , CC1311R3 , CC2651P3 , CC2651R3 , CC2651R3SIPA
The I2S:AIFDIRCFG register configures whether each ADx signal is input, output, or unused.
Each used I2S signal must be mapped to a physical I/O pin, DIOn, by configuring the corresponding IOC:IOCFGn register.