Article ID: 000082478 Content Type: Troubleshooting Last Reviewed: 04/16/2013

Why does the Quartus® II software .pin file report that the transceiver VCCR_GXB supply needs 1.2v on Arria® V GX -C4, -C5, -I3 and -I5 devices for datarates >3.2Gbps?

Environment

Quartus Edition

Quartus® II Subscription Edition

Version Found: 12.0

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Description

Due to a bug in the Quartus II software, the .pin file reports that the transceiver VCCR_GXB supply needs 1.2v on Arria V GX -C4, -C5, -I3 and -I5 devices for datarates >3.2Gbps on Arria V GX devices.

The correct voltage for VCCR_GXB when using transceivers running at >3.2Gbps on Arria V GX -C4, -C5, -I3 and -I5 devices is 1.15v as detailed in the Arria V GX Pin Connections Guidelines document.

Resolution

This issue will be fixed in a future version of the Quartus II software.

Description
Resolution

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