Device Family: Intel® Stratix® 10

Type: Answers

Area: Component


Last Modified: January 17, 2020
Version Found: v19.4
Bug ID: 2205702846

"Errors ():Could not allocate the following pins to any bank: - pins at mV" in the Early Power Estimator for Intel® Stratix® 10 devices

Description

Due to a problem with the Early Power Estimator (EPE) for Intel® Stratix® 10 devices version 19.4 and earlier, you may see this error even if there are still available pins when differential input pins are used and the VCCIO voltages of all I/O banks are not 2.5V.

Here is an example.

  • Device: 1SG280H
  • Package: F50
  • Number of user I/O: 672
  • Number of I/O bank: 14
  • Number of pin pre I/O bank: 48
  • User I/O usage:  
    • 1.2 V output * 625 pins
    • LVDS input * 1 pair

In this case, since 625 pins are used for 1.2V output, the VCCIO voltages of 14 I/O banks are 1.2V.

LVDS input is powered by VCCPT, not VCCIO.  So a pair of LVDS input should be able to be assigned to remaining pins.  But the EPE for Intel Stratix 10 devices incorrectly displays an error like the following image.

Workaround/Fix

You can safely ignore this error.

This problem is scheduled to be fixed in future release of the EPE for Intel Stratix 10 devices.