Article ID: 000077716 Content Type: Troubleshooting Last Reviewed: 08/27/2013

Why does the Quartus II software prohibit using the LVDS I/O standard in I/O bank 1 in Cyclone III devices?

Environment

BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description

The Quartus® II software prohibits you from using the LVDS I/O standard in I/O bank 1 in Cyclone® III devices when the configuration device I/O voltage is not 2.5V.

To workaround this, you need to change the configuration device I/O voltage to 2.5V.

To change the device configuration I/O voltage in Quartus II software, do the following:

  1. Navigate to Assignments>Device>Settings>Device and Pin Option>configuration
  2. Change the "Configuration Device I/O voltage" to "2.5V" or "Auto".

Related Products

This article applies to 1 products

Cyclone® III FPGAs