This limitation will be increased to 131072 words in a future version of the Quartus II software version.
Article ID: 000083700 Content Type: Troubleshooting Last Reviewed: 09/11/2012
Why doesn't the Quartus® II software allow FIFOs deeper than 8192 words?
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Description The Quartus II software version 4.0 and above limits the FIFO depth to 8192 words.