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VHDL Conditional Signal Assignment error at <location>: waveform that contains UNAFFECTED keyword cannot contain any waveform elements


CAUSE: In a Conditional Signal Assignment at the specified location in a VHDL Design File (.vhd), you used the UNAFFECTED keyword for a waveform. However, you also used one or more waveform elements in the waveform. A waveform that contains the UNAFFECTED keyword cannot contain any waveform elements.
ACTION: Remove either the UNAFFECTED keyword or the waveform element(s) from the waveform.

See also:

Sections 8.4 and 9.5.1 of the IEEE Std 1076-1993 IEEE Standard VHDL Language Reference Manual

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