synthesis report

[ricky]

Hi,

I would like to know the meaning of the synthesis tool message.



+---------------------------------------------------------------------------
----+
| design_A
|

|---------------------------------------------------------------------------
------|
| Cell area | Total area | Late slack | Early slack

|----------------+-----------------+----------------+-----------------------
----|
| 10075.77 | 10075.77 | 5.5432 | 0.6868
|

+---------------------------------------------------------------------------
-----+


What is the difference between early slack and late slack.


Thanks in advance.
ricky