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The Quartus® Prime report for the Tx Current strength value for High Speed Differential I/O in Arria® 10 shows the [Current Strength] of the pin as "Default", but what is the mA value? What is the value?

The Quartus® Prime report for the Tx Current strength value for High Speed Differential I/O in Arria® 10 shows the [Current Strength] of the pin as "Default", but what is the mA value? What is the value?

  • Updated

The Transceiver Current value is determined by VOD, Pre-emphasis, and On-Chip Termination, so the "Current Strength" in the Quartus® Prime Report does not show the specific value.

VOD, Pre-emphasis, and On-Chip Termination can be changed by reflecting them in QSF using the Assignment Editor. 
Please refer to the following Transceiver User Guide for the values and parameters that can be set.

(Reference) Arria® 10 Transceiver PHY User Guide 
https://docs.altera.com/r/docs/683617/21.1/arria-10-transceiver-phy-user-guide/calibration-revision-history
8 (Analog Parameter Settings section)

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Category: Transceivers 
Tools: Quartus® Prime 
Device: Arria® 10

 

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