-The Backflow(overrun error)error comes, when the DMA buffers get filled and the GPIF is still trying to write the data. If the host is reading the data slower than the data being written at the GPIF interface, then the DMA buffers will get filled and give this Backflow(overrun error).
Thanks for your reply.
As per my understanding, the time diagram is only for simulation. In my case, only a couple of buffers(16368 bytes) offset between with/withoud card, so I really doubt I can see any difference from the timing diagram. Or, if it's possible, could you please guide me how to do it?