Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

Be confused with setup time slack calculation

In QuartusII Handbook 7.1, Page 1614, it listed setup time slack equation as below: Clock Setup Slack = Data Required Time - Data Arrival Time Data Arrival Time = Launch Edge + Clock Network Del...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

Someone else asked about negative tsu at http://www.alteraforum.com/forum/showthread.php?t=1679. tsu at a device input pin ("port" in SDC terminology) can easily be negative, but I don't remember noticing negative micro tsu before (the tsu right at the internal register). Maybe it's common.