Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

tse (Triple speed ethernet) and SGDMA (Scatter Gather DMA) do not seem fully connecte

So I've searched, and nothing seems to quite fit my case. I am using SGDMA and TSE with InterNiche Portable TCp/IP v3.1 and Simple Socket Server demo and Altera 10.0 (or very close, maybe 10.1)...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

About your question, the arrows don't show the direction of the data flow, but the master/slave relationship. So even if data is going to the sgdma_tx, it is the DMA that controls the transfer and is the master on the bus. The RAM is always a slave. That's why you see an arrow from the DMA to the RAM, even if the data is actually going in the other direction.