10.4.8.4 Synchronous FIFO for IGLOO®, ProASIC® 3, SmartFusion® and Fusion Implementation Rules/Timing Diagrams

Caveats to FIFO generation

• Depth cascading is currently not supported. Therefore the maximum depth supported is only 4096.
• It supports wide cascading up to 64 blocks.
• The core configurator does not generate a FIFO based on a specific device. It is your responsibility to make sure the FIFO fits physically on the device.
• Dynamic configuration of any signal with exception of AFVAL/AEVAL is not supported.
• The core configurator gives a configuration error for unsupported configurations.
• WBLK and RBLK are always grounded by the configurator, which means the FIFO block always remains enabled. You must control the FIFO with WEN and REN.