SPRUJ52C june 2022 – july 2023 AM69 , AM69A , TDA4AH-Q1 , TDA4AP-Q1 , TDA4VH-Q1 , TDA4VP-Q1
Packets sent from host port 0 (switch ingress) to any Ethernet port can have a checksum calculated and inserted into the Ethernet egress packet. The RX_CHECKSUM_EN bit in the CPSW_P0_CONTROL_REG register must be set for receive checksum operation to be enabled. When bit RX_CHECKSUM_EN is enabled, Control Data Word 2 input on CPPI receive PSI interface determines how the checksum is calculated. The CHECKSUM_RESULT field in Control Data Word 2 determines where the checksum is inserted. The checksum result location is adjusted by the egress port if a VLAN is to be inserted or removed on Ethernet port egress.