AI Engine-ML cores can directly communicate through the AXI4-Stream interconnect without any DMA and memory interaction. Data can be sent from one AI Engine-ML to another or broadcast through the streaming interface. The data bandwidth of a streaming connection is 32-bit per cycle and built-in handshake and backpressure mechanisms are available.
The stream connection can be unicast or multicast.
Note: In the case of multicast communication, the data is sent to all
the destination ports at the same time and only when all destinations are ready to
receive data.