AR# 13229


12.1 Timing - I need a positive hold value, but a hold violation occurs on my input port


I need a positive hold requirement for my input port, but the timing tools are reporting a hold violation.

Why am I receiving a hold violation, and how can I solve this issue?


If you have positive hold time requirements and you do not specify a data VALID duration with your OFFSET constraints, a hold error occurs (TRCE assumes VALID=OFFSET for a zero hold time check).

For more details on timing constraints, see the Timing Constraints User Guide:

AR# 13229
Date 12/15/2012
Status Active
Type General Article
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