Sorry for this second part but I'm quite sure of the SDRAM x16 connection on the high half of the bus (D16-D31) and byte lane signals BS0_B for D24-D31 (high byte) and BS1_B for D16-D23 (low byte), so I'd like to add this note.
Isn't it?
I've also set a better subject to this thread.
Thanks,
Alessandro.