SPRUII0F May 2019 – June 2024 TMS320F28384D , TMS320F28384D-Q1 , TMS320F28384S , TMS320F28384S-Q1 , TMS320F28386D , TMS320F28386D-Q1 , TMS320F28386S , TMS320F28386S-Q1 , TMS320F28388D , TMS320F28388S
The GPIO mux registers must be configured to connect this peripheral to the device pins. To avoid glitches on the pins, the GPyGMUX bits must be configured first (while keeping the corresponding GPyMUX bits at the default of zero), followed by writing the GPyMUX register to the desired value.
Some I/O functionality is defined by GPIO register settings independent of this peripheral. For input signals, the GPIO input qualification must be set to asynchronous mode by setting the appropriate GPxQSELn register bits to 11b. The internal pull-ups can be configured in the GPyPUD register.
See the General-Purpose Input/Output (GPIO) chapter for more details on GPIO mux and settings.