TMC-20016: Invalid Reference Pin
Description
Violations of this rule identify reference pins specified for I/O delay constraints that are not in the direct fan-out of the -clock specified in the same assignment. Being in the direct fan-out means that there must be no keepers between the clock and the reference_pin .
Recommendation
Modify the -reference_pin option of the delay assignment to be the direct fan-out of the clock that you specify in the same assignment.
Severity
High
Tags
| Tag | Description |
|---|---|
| sdc | Design rule checks related to SDC validity checking. |
| system | Design rule checks which validate full-system design. |
Device Family
- Intel®Cyclone® 10 GX
- Intel®Arria® 10
- Intel®Stratix® 10
- Intel®Agilex™