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What are some ways to do Scatter-Gather (SG) with Modular Scatter-Gather Direct Memory Accessm (mSGDMA)?

IP

Category: IP (Other)
Tools: Quartus® Prime / Quartus® II
Device: Cyclone® V


There are two ways to implement SGDMA.

  • Create a descriptor table in RAM and read the table from mSGDMA for operation. (You'll need to use the additional feature Prefetcher Core.)
  • Write the descriptor table to the mSGDMA descriptor storage FIFO and operate it.


Reference information
https://www.altera.com/en_US/pdfs/literature/ug/ug_embedded_ip.pdf
(Search for Maximum Transfer Legth.)



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