Knowledge Base Article

Why aren’t HSSI analog parameter values set in the GTS PMA registers when these values are enabled and set in the PMA/FEC Direct PHY IP GUI?

Description

Due to a problem in the Quartus® Prime Pro Edition software version 24.3, HSSI analog parameter values listed below aren’t reflected in the GTS PMA registers even you set these analog parameters in the GTS PMA/FEC Direct PHY IP GUI.

  1. Enable RX P&N Invert, Enable TX P&N Invert
  2. RX External Coupling Mode
  3. Selects value of RX On-chip Termination
Resolution

To overcome the problem, you can use the QSF setting methodology to set the analog parameters in your .qsf file for both the RX on-chip termination and RX External Coupling Mode settings.

For TX and RX polarity inversion pins, you can follow the PMA/FEC Direct PHY IP User Guide on the GTS Attribute access method to change the TX and RX polarity pins.

This problem is scheduled to be fixed in a future release of Quartus Prime Pro Edition software.

Updated 1 month ago
Version 2.0
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