ID:16068 <number> DSP block(s) are unregistered - they use none of the recommended internal DSP register banks. Intel advises using all the recommended internal DSP register banks for high performance designs.

CAUSE: The DSP Register Packer was unable to fully utilize all the recommended internal register banks (input, pipeline and output) in some DSP blocks in the design.

ACTION: Please refer to Altera Megafunctions/LPM on instantiating parameterized DSP modules that fully utilize internal DSP register banks. Please refer to "Fixed Point DSP Register Packing Details" table in the Fitter Report for more information on DSP blocks in your design. Please refer to Intel FPGA Documentations for more information on Altera DSP architectures for your device family.