SPRUJ17I March 2022 – August 2025 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
For proper SDFM operation, use the following GPIO input qualification. Other GPIO qualifications are not supported.
The SDFM module expects SDFMy-Dx to change on the falling edge of SDFMy_CLKx and strobes for SDFMy-Dx on the rising edge. But some SD-modulators in the market change SDFMy-Dx on the rising edge and expect SDFM to strobe for data on the falling edge. In such cases, the GPIO inversion feature (GPxINV) is used on SDFMy-CLKx pin to change polarity and make it compatible with the SDFM.
See the General-Purpose Input/Output (GPIO) chapter for more details on GPIO mux and settings.