Hi everyone,
I am currently studying on eDMA and I was wondering how eDMA works so I decided to read the functional description part of the RM of MPC5644A.
Therefore, this is the question that I struggle to understand;
- On page 174 of MPC5644A RM, there is an explanation of the eDMA data flow that is shown in Figure 8-25. In that explanation there is a statement that is below;
"This source read/destination write processing continues until the inner minor byte count has been transferred."
I am wondering, which sub-module of the eDMA is working on the counting the inner minor byte count? Is it Control Module?
Best regards,
Mert.
In case you need to understand DMA operation in great detail, I could recommend MPC5634MRM, where DMA engine is described in the great detail (for instance pseudo C code specification in section 7.2.2 Features):
https://www.nxp.com/files-static/32bit/doc/ref_manual/MPC563XMRM.pdf
Regarding your question, it is certainly control module:
