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Device Family: Arria® V GT

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Device Family: Arria® V SX

Device Family: Cyclone® V E

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Type: Answers

Area: EMIF

Area: Intellectual Property


IP Product: IP Base Suite

Internal Error: io_obuf_iterm->is_inverted() == comp_obuf_iterm->is_inverted()

Description

The above internal error may appear when you design a custom memory interface with the ALTDQ_DQS MegaCore®. The internal error is caused by inconsistent output enabling assignments on the DQS and DQSn signals.

Workaround/Fix

Make sure you have the same assignments on both DQS and DQSn signals.