Type: Answers, Errata
Area: Tools


Last Modified: January 08, 2015
Version Found: v14.1

Chainin and Chainout Ports in Arria 10 Native Fixed Point DSP IP Core Not Supported for m18x18_full Operation Mode.

Description

When the Arria 10 Native Fixed Point DSP IP is configured to m18x18_full operation mode, the chainin and chainout ports are visible to users. However, these ports are disabled internally in m18x18_full operation mode.

If you connect the chainin and chainout ports when the Arria 10 Native Fixed Point DSP IP is configured to m18x18_full operation mode, there will be no data transfer in and out to the DSP core.

Workaround/Fix

Leave the chainin and chainout ports unconnected when the Arria 10 Native Fixed Point DSP IP is configured to m18x18_full operation mode. This issue will be fixed in a future version of the Quartus II software.