SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
The pru<n>_r31_status[0:15] and pru<n>_r31_status[16] bits of the internal PRU register file mapped to device-level, general purpose input pins (PRU0_DATAIN [0:15] and PRU0_CLOCKIN, respectively). PRU0_CLOCKIN is designated for an external strobe clock, and is used to capture PRU0_DATAIN [0:15].
The PRU<n>_DATAIN can be captured either by the positive or the negative edge of PRU<n>_CLOCK, programmable through the PRU_ICSSG CFG register space. If the clocking is configured through the PRU_ICSSG CFG register to be positive, then it will equal PRU<n>_CLOCK; however, if the clocking is configured to be negative, then it will equal PRU<n>_CLOCK inverted.