Quartus

In multiplier mode, ATOM <name> has illegal outputs

CAUSE:

The specified ATOM, which is in multiplier mode, has illegal outputs. This message can occur for one of the following two reasons:

  • The ATOM is a multiplier output, but is using the multout port. If the ATOM is a multiplier output, it cannot use the multout port.

  • The ATOM is not a multiplier output, but has more than one fan-out. If the ATOM is not a multiplier output, it must have only one fan-out from either the multout or regout port.
ACTION: If you are using an EDA tool, contact the technical support for the EDA tool regarding this message. Otherwise, contact Altera Applications for assistance.

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