deciding factor in digital design

Status
Not open for further replies.
P

ppsxn1500687

Newbie level 3
Joined
Nov 25, 2010
Messages
3
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,309
what is the deciding factor in digital design? Setup or Hold time. Why?
 

Setup is decidin factor to calculate the max frequency at which the circuit can work.

But hold violations are more serious because you cannot make the circuit work by reducing the frequency.
 
I also think that setup is the deciding factor in the digital circuit, as there are some cases when the hold violations are being fixed after place&route phase of the design.
 
when hold violations are equaly imp as setup time, so why cnt we cal it a deciding factor?
 

@pps: Deciding factor for WHAT?

setup is deciding factor for "calculating max frequency". The design wont work properly if you have setup or hold violations on the path. But you can avoid the setup voilation by operating at a lower frequency which is not possible in the case of hold violations.
 
Reactions: dianin

    dianin

    Points: 2
    Helpful Answer Positive Rating
Agree with chipmonkey. By decreasing the frequency the hold violation still remains. But on the other hand usually the hold violations are being fixed after p&r phase.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…