Questions about hold time violations

[energeticdin]

Hi all,

1. For reducing Hold time violation, we have to add delay in data path or clock path?

2. For checking setup, we r checking for next rising edge, for hold at the same edge why?

3. How to reduce hold time violations? Only adding buffers or any thing else....


Thanks in advance

 

[firewire2035]

Reg: Hold time

1.. data path, but you have to minimize clock skew in the backend.

2. hold time problem will show up on reg to reg on a very sort data path, due to clock skew.

3. minimize your clock skew, review your clock uncertainty specification. *analyze* your timing report, not just the slack results.