If you don't read the value from the 68030 side, I don't think you
should be able to send 3 values.
To be clear I can't send 3 values - I can send 2. It's the 3rd which requires a wait (so 2 values are sitting in the pipe before the CPU needs to act).
Ok but don't go to a lot of trouble. I'm mainly trying to understand what I'm seeing. There may be nothing wrong. I'll keep looking at it too.
Does this just happen for the 3 first transfers (which would
indicate a little init bug) or always ?
It seems to be always, because the 3rd write shows a 100:1 spin ratio, where the others are less than 10:1 - collected over several seconds.
D.