SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
The PRU0_r30 [19:0] bits of the internal PRU register files are mapped to device-level, general-purpose output pins (PRU0_GPO[0:19]). In GPO Direct Output mode, PRU0_r30[0:19] feed directly to PRU0_GPO[0:19]. Each PRU of the PRU_ICSSG has a separate mapping to pins, so that there are 40 total general-purpose outputs from the PRU_ICSSG. See the device's system reference guide or datasheet for device-specific pin mapping.
R30 is not initialized after reset. To avoid unintended output signals, R30 should be initialized before pinmux configuration of PRU signals.