Glossary

slack


In designs with timing requirements or "complex timing assignments," slack is the margin by which a timing requirement was met or not met. A positive slack value, displayed in black, indicates the margin by which a requirement was met. A negative slack value, displayed in red, indicates the margin by which a requirement was not met.

Slack time is calculated using the following equation:

slack = <required maximum P2P time> - <actual maximum P2P time>

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