Article ID: 000085945 Content Type: Troubleshooting Last Reviewed: 05/08/2015

Why do some pins designated as differential in Cyclone V, Arria V and Stratix V devices have no complimentary pin?

Environment

BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description

The differential pin index is usually determined from the largest package of a particular device density in Cyclone® V, Arria® V or Stratix® V devices. Hence, some differential pairs might not exist for some smaller packages for a given device density.

For example, pin DIFFIO_TX_T18p might exist but DIFFIO_TX_T18n may not exist, in a device pin-out for a particular package.

Resolution Differential pins that do not have their complimentary pair cannot be used for differential functions. Only use pins that are available as a complete pair for differential functions.

Related Products

This article applies to 14 products

Cyclone® V SX SoC FPGA
Cyclone® V GT FPGA
Stratix® V GX FPGA
Cyclone® V GX FPGA
Stratix® V GT FPGA
Stratix® V GS FPGA
Arria® V GZ FPGA
Arria® V SX SoC FPGA
Cyclone® V ST SoC FPGA
Arria® V ST SoC FPGA
Arria® V GX FPGA
Arria® V GT FPGA
Stratix® V E FPGA
Cyclone® V SE SoC FPGA

1

Need more help?

Contact support

Disclaimer

1

All postings and use of the content on this site are subject to Intel.com Terms of Use.