FPGA.GP.Choosing Memory Type for FIFO Generation

When creating FIFO using the FIFO Generator, below is a guideline to selecting memory types.

For example, for deep depth message buffering, choose Block RAM.

Benchmarking suggests that the advantages the Built-In FIFO implementations have over the block RAM FIFOs (for example, logic resources) diminish as external logic is added to implement features not native to the macro. This is especially true as the depth of the implemented FIFO increases. It is strongly recommended that users requiring features not available in the Built-In FIFOs implement their design using block RAM FIFOs.

FIFO Generator v13.0, page 11

PG057 November 18, 2015