Description
FSL V20 core don't handle fifo sizes which is not 2^n for synchronous FIFO.
It will set the FIFO depth to the lower 2^n value.
Solution
This has been fixed in the latest FSL V20 core, and is available in EDK 11.2.
EDK 11.2 is available at:
http://www.xilinx.com/xlnx/xil_sw_updates_home.jsp