measuring setup and hold in adel/mastero

Dear hdeshmukhnvidia,

hdeshmukhnvidia said:

I am trying to measure setup and hold in adel/mastero, I was wondering is there is any in build function to do this,

The only "built-in" means I am aware of uses spectre MDL if you are familiar with it. There is an application note at the Cadence Onl-line support portal at URL:

support.cadence.com/.../ArticleAttachmentPortal

However, I have performed setup/hold time analyses many times using Assembler or Explorer. Most recently, I described the basic methodology for a Forum poster who was looking to determine the noise margin for a comparator - which has a very similar set of simulations. The last entry to the Forum post at URL:

community.cadence.com/.../can-i-pass-value-between-runs-in-transient-noise-simulation

describes this. Basically, vary the delay of one signal relative to the other signal by a range of small increments and compute the propagation delay for each of the simulations. Normalize the delay to the value where no metastable or setup/hold violations occur and plot the propagation delay as a function of delay time. The most common definition for setup/hold times sets the respective value to the value where the propagation delay exceeds its normalized value by 1.01 (or 1%). An example is shown in Figure 1.

Shawn

Figure 1