MIL-STD-1553 IP is an IP Core which implements the MIL-STD-1553B standard and provides a single or multi-functional interface between the host processor and the MIL-STD-1553 bus transceiver. MIL-STD-1553 IP can function as a Bus Controller (BC), two separate Remote Terminal (RT) and a Bus Monitor (BM) simultaneously.

https://www.electraic.com/product/mil-std-1553-ip-core