10.4.4.1 Soft FIFO Controller w/ Memory vs. Soft FIFO Controller without Memory

The Soft FIFO with memory generates the FIFO controller logic and instantiates the proper synchronous RAM blocks to support the specified depth/width configuration.

The Soft FIFO without memory generates only the FIFO controller logic. This core is intended for users who wish to use the FIFO controller with an external memory.

Also, the Soft FIFO without memory can be used in conjunction with the EDAC RAM or the numerous RAM varieties in the ProASICPLUS (APA) family.