4.4.5. Avalon-ST Sink (D2H)
The D2H Avalon-ST Sink interface is used to read D2H DMA data from the external Avalon-ST source logic.
|Signal Name||I/O Type||Description|
|d2h_st_valid_<n>_i||Input||Valid for all incoming signals. A ‘1’ represents the device readiness for data to be sent.|
|Input||D2H Streaming data from device to host.|
|d2h_st_ready_<n>_o||Output||Backpressure from Multi Channel DMA IP for PCI Express. A ‘1’ represents, IP readiness for receiving data.|
|Input||Represents the number of empty bytes in d2h_st_data_<n>_i, and valid only when both d2h_st_valid__<n>_i and d2h_st_eop__<n>_i is ‘1’.|
|d2h_st_sof_<n>_i||Input||Start of file (or packet) as instructed by the user logic.|
|d2h_st_eof_<n>_i||Input||End of file (or packet) as instructed by the user logic.|
|d2h_st_channel_<n>_i[10:0]||input||To support multi-Channel per port.|
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