Article ID: 000074226 Content Type: Error Messages Last Reviewed: 09/11/2012

Error (169008): Can't turn on open-drain option for differential I/O pin

Environment

    Quartus® II Subscription Edition
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Description

The Quartus® II software Fitter will generate this error if a design has floating bidir pins with differential HSTL, SSTL and BLVDS I/O standards.

Resolution

To avoid this Fitter error, connect the floating bidir pins with differential I/O standards to the ALTIOBUF megafunction in differential mode.

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