07-12-2015 08:15 AM
fifo block ram is the built-in fifo.
07-13-2015 12:16 AM
Can you give more details on which core or application you are referring where FIFO is built using block ram's instead of the built in FIFO and want's a reason for that.
07-13-2015 04:52 AM
If you are using FIFO generator IP core, refer to page-15 of http://www.xilinx.com/support/documentation/ip_documentation/fifo_generator/v12_0/pg057-fifo-generator.pdf