Scatter/Gather Block - 4.1 English

AXI Central Direct Memory Access LogiCORE IP Product Guide (PG034)

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4.1 English

The AXI CDMA can optionally include Scatter/Gather (SG) functionality for off-loading CPU management tasks to hardware automation. The Scatter/Gather Engine fetches and updates CDMA control transfer descriptors from system memory through the dedicated AXI4 Scatter Gather Master interface. The SG engine provides internal descriptor queuing, which allows descriptor prefetch and processing in parallel with ongoing CDMA data transfer operations.