SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
Each incoming packet that enters the UDMA-P will either include an explicitly specified FlowID contained in the info words or it will have an implicitly specified default FlowID which is the same as the channel number. The Rx FlowID firewall checks the incoming FlowID on the received packet to verify that it is either the corresponding default FlowID for the channel or that the FlowID falls within the range specified in the Rx Channel Flow Range register. If the received flowID is not the channel number and it does not fall within the legal range as specified then the packet is dropped, the error is trapped in the Rx Flow ID Firewall Status register, and an optional output event is generated as specified in the Rx Flow ID Firewall Output Event Steering Register.