inter clock & intra clock

[designer_ec]

Hi,

What is the difference between inter clcok and intra clock,and also what are the application of inter clcok and intra clock.At which analysis we use these.Pls explain detail about this.

 

[MarcS]

There are a number of timing constraints that apply to flip-flops (or other elements) that are all relative to the same clock signal. These are called intra-clock constraints, or timing, etc.

Sometimes there are timing paths or constraints that cross from one clock to another. These are called inter-clock constraints, or timing.

For example, you can have a skew defined for one clock (intra-clock skew) or you can define the skew between two or more different clocks (inter-clock skew)