SPRUJ52C june 2022 – july 2023 AM69 , AM69A , TDA4AH-Q1 , TDA4AP-Q1 , TDA4VH-Q1 , TDA4VP-Q1
The Address Lookup Engine (ALE) is a sub-block of the CPSW Switch and it processes all received packets and determines the packet destination port(s). The ALE uses the incoming packet data: received port number, destination address, source address, length/type, and VLAN information to determine how the packet should be forwarded. The ALE outputs the port mask to the switch fabric that indicates the port(s) the packet should be forwarded to. The ALE is enabled when the ENABLE_ALE bit in the CPSW_ALE_CONTROL register is set. All packets are dropped when the ENABLE_ALE bit is cleared to 0h.