AXI4-Stream Interfaces with Side-Channels - 2021.1 English

Vitis High-Level Synthesis User Guide (UG1399)

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2021.1 English
Side-channels are optional signals which are part of the AXI4-Stream standard. The side-channel signals can be directly referenced and controlled in the C/C++ code using a struct, provided the member elements of the struct match the names of the AXI4-Stream side-channel signals. The AXI4-Stream side-channel signals are considered data signals and are registered whenever TDATA is registered.