SPRZ457H January 2021 – December 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
ICSSG: PRU RAM WRT during active FDB lookup write data corruption
The PRU Filter Data Base (FDB) RAM write can cause FDB RAM to get corrupted.
1. Do not allow PRU FDB writes during New Packets, which can be achieved by taking the port down
OR
2. PRU FDB RAM write can only happen during safe zone, ie check for start of frame (SOF0/SOF1) and calculate safe zone depending on transfer speeds (100MHz or 1GHz)