Max latency value should be met??

[f34rbod]

Hi All,

In any design while building Clock tree, we specify target skew, Max latency and min latency values.
Is it mandatory to meet meet the latency values?
What happens if it is not met?
How ocv is related to this?

Eg: if target skew is 200,
Max latency is 800
Min latency is 600 are the specified values. But in the design skew is met with max latency 500.

Is it ok to be like this??
If not why?

 

[sharath666]

Latencies are usually specified so that clocks reach the appropriate flip flops at just about the right time. In case you violate them, there will be timing problems in the design.

 

[f34rbod]

Can you please tell me what is the role of OCV