SPRUIV7C May 2022 – November 2025 AM620-Q1 , AM623 , AM625 , AM625-Q1 , AM625SIP
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 PRUSS CFG register space. If the clocking is configured through the PRUSS 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.
Figure 7-19 PRU R31 (EGPI) 16-Bit Parallel Capture Mode Block Diagram