Article ID: 000085875 Content Type: Troubleshooting Last Reviewed: 06/06/2023

Why does the simulation of my Dual Port RAM Intel® FPGA IP have incorrect read-during-write behavior?

Environment

    Intel® Quartus® Prime Pro Edition
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Description

Due to a problem in the Intel® Quartus® Prime Pro Edition Software, you might see incorrect old data behaviour for read-during-write operations when new data is expected.

This problem only affects the simulation behaviour for Dual Port RAM Intel® FPGA IP with the following configuration for Intel® Stratix® 10 devices and Intel Agilex® devices :

  • RAM block type is MLAB
  • Read address is unregistered
Resolution

This problem is fixed starting with the Intel® Quartus® Prime Pro Edition Software version 21.3.

Related Products

This article applies to 2 products

Intel® Stratix® 10 FPGAs and SoC FPGAs
Intel Agilex® 7 FPGAs and SoC FPGAs

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