Hi Thomas,
In your analysis you have the Nios+SDRAM controller consuming 11-3 = 8 clocks. That's 8 clocks of overhead. Is this just to be expected as normal?
How much overhead would be added on say a Coldfire or an ARM or some other softcore? Do all/most embedded processors add over 300% overhead to memory reads? I don't know for sure, but it doesn't sound right.
I'd like to establish this as either an oversight, a work in progress, or the way it is and then have it documented. The current literature promises either "single cycle" or ">1 clocks" to access sdram. (11 != 1)
Thanks,
Ken