SPRUJ55D September 2023 – July 2025 AM263P2 , AM263P2-Q1 , AM263P4 , AM263P4-Q1
The pru<n>_r31_status[0:19] bits of the internal PRU register file are mapped to device-level, general purpose input pins (PRU0_GPI[0:19]). In GPI Direct Input mode, PRU0_GPI[0:19] feeds directly to pru<n>_r31_status[0:19].
Each PRU of the PRU-ICSS has a separate mapping to device input signals - PRn_PRU0_GPI[19:0] for the PRU0 core and PRn_PRU1_GPI[19:0] for the PRU1 core. There are 40general purpose inputs in total. For more details, refer to the PRU-ICSS Environment. See the device's system reference guide or data sheet for device specific pin mapping.
Figure 7-27 PRU R31 (EGPI) Direct Input Mode Block Diagram