Why do I see a large Tco delay for unregistered M10K output paths for Arria V devices? - Why do I see a large Tco delay for unregistered M10K output paths for Arria V devices? Description Due to a problem in the Quartus® II software version 12.0, the timing model for Arria® V M10K unregistered outputs is incorrect and you may see a large Tco delay. Resolution This issue is fixed beginning with the Quartus II software version 12.0 SP2. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['FPGA Dev Tools Quartus II Software'] 12.0.2 12.0 ['Arria® V GT FPGA', 'Arria® V GX FPGA', 'Arria® V ST FPGA', 'Arria® V SX FPGA'] ['novalue'] ['novalue'] ['novalue']