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# Calculate Setup Time

27 Threads found on edaboard.com: Calculate Setup Time

## design D flip flop with calculate basic timing of it,such as setup and hold time

hi friends how can i design a D flip flop and calculate setup and hold time for it? Is there possible design d flip flop with PSSL family of logic ? thanks in advanced

## how setup and holdup time of D flipflop is calculated?

You cannot calculate it for a flip flop. It is fixed and specified in the datasheet. It will vary based on the process..

## Setup time simulation problem

Hello guys , I have a big problem, I'll explain the situation. I have a master-slave d flip-flop with transmission gates , and would I calculate the setup time . Doing simulations have come to a conclusion , that I have found a certain value. This value was found with a parametric simulation in LTSpice by varying the arrival (...)

## How to calculate setup and hold time of DFF ?

I would not try to calculate S/H times from such datasheet type values, if I was anywhere close to the performance limits. If you slide data edge across clock edge, you will see a region where prop delay blows out, then metastability, then fail-to-catch. If you are going to depend on static timing analysis for design closure, then your real setu

## How to calculate library setup time and Hold timel?

by using spice simulation the min delay (setup time) required between data and clock so that data is captured to output is calculated. DATA __ __/```````\___ CLK _/``\__/``\__ OP _______/````` for example, the simulation is done in number of steps by decreasing delay between data and clock. in each it verify the output (should be 1 in (...)

## How to Calculate the library setup time?

Hi Every one The library setup and hold times are generally in the library (.db or .lib) and how these are calculated? Here is the Example Report. data arrival time 0.57 clock mck (rise edge) 2.50 2.50 clock network delay (ideal) 0.00 2.50 library setup time -123.44 -120.94 (...)

## Calculation of frequency of a flip flop

How do i calculate the frequency of D flip flop in cadence? Also, i am stuck up with the setup and hold time calculation in cadence.

## How to calculate the setup time and hold time of a DFF?

i want to know something. i have to test a bunch of flip-flop and i want to compute their setup and hold time effectively. Is there anyway to calculate setup and hold time of a D flip-flop in cadence by using calculator, or any tools in cadence? regards mete

## strategy to find the setup/hold time values for a Flip-Flop

The setup/hold time calculation can be referred to report_delay_calculation during Design Compiler. Basically, the tool will refer to the timing table provided by .lib and calculate the result with input clock transition.

## How to calculate the time used for each setup as following program

Hello! I think that on simple operation such as assignations, it should not depend on the compiler. P0 = 0x55 for example, will likely result in the same assembly code for all compilers. Now I don't understand what you mean by calculate average compiler. Again, this should be in the 8051 manual. Any assembler instruction should be detailed (how m

## How to calculate the timing results

how will we justify for the following time calculation: Other End Arrival time 110.000 - setup 90.400 + Phase Shift 794.000 + CPPR Adjustment 0.000 - Uncertainty 106.000 = Required time 707.600 - Arrival (...)

## Setup & Hold violation on same path

hi.. The prime time tool will calculate timing for a path in single clock period. so what.... tool will not calculate setup & hold time for same FF. If we want to calculate setup & hold time for same FF then it need 2 clk period. and also it happen at (...)

## dspic30f4011 input capture problem

I am trying to calculate the frequency of an incoming signal on the dspic30f4011 micro. I have setup a functioning pwm signal to test the incoming signal on. I believe my code is picking up the difference between the time captures of the signal, but I'm not sure how to calculate the frequency from there. I am running off (...)

## How to calculate setuptime of latch of back to back inverter

hi how to calculate the setup time of a latch made up of two back to back connected inverters.

## how to calculate the max operating frequency

how to calculate the max operating frequency of the design considering setup and hold time constraints. thanks in advance

## How to calculate setup and hold time?

HI, I know setup and holdtime. I need some examples to calculate this.... I always find some difficulty in solving this timing issues. Pls help me

## How to calculate the setup and hold time for a SR latch

Hi I having a doubt in calculating the setup and hold time for a SR Latch (with clock and without clock). Could anyone explain how calculate setup/hold time for both clocked latch and without clocked SR latch. or else, is there any documents related to this. Thanks & Regds Muthamil

## setup time calculation for edge trigger FF(for std cell Lib)

Hi Friends, I am designing a Negative edge SR FF. I am using the Glitch circuit. i having to calculate the setup and hold time form this. My doubt is the Glitch occurs after the falling edge of clock. And based on the Giltch only the output rise and fall occurs. How could i measure the setup and Hold (...)

## how to calculate the setup and hold time ,thanks

thanks,the ppt is very good ,could you upload others ppt? another question:from the ppt ,I want to ask,we don't know the period of clk ,how to calculate the tsu and thold? from the ppt,the page 26 I think the tsueffective=txor+tsu-tclk=2+2-1=3 theffectiv=th+tclk-txor=2+1-2=1. is it right?

## setup and holdtime calculation for a sequential cell Lib

Hi all, I am working on standard cell Library and now i am trying to generate the library for Flip flops and Latches. 1. Did i have to calculate setup time and hold time in the Library ? 2. What are method other than bisection technique to calculate setup/hold (...)

## Where can metastable window for a flop be found?

Well, If I m designing my own Dflip-flop...How do I calculate it?

## setup and hold time theoritically

Hi All, Is there any topic to calculate setup and hold time theoritically.How can you estimate setup and hold time theoritically. Thanks in advance. sandy Please refer to the similar topics pasted on this web or you can check the book titled Digital Design Perspective which i remember (...)

## How to calculate maximum frequency of a circuit?

How to calculate the max.freq of the ckt?... The delay between 2 adjacent flip-flops + Delay of combo Is it correct?....

## Calculation of Setup time and Hold time

if you want to calculate, the simulation can tell you the setup and hold time. The setup and hold time is the point that the function is fail.

## How to calculate setup time and hold time if the delay of flipflop is known?

We can not calculate setup and hold time if we only know the delay time

## QUERY REARDING INPUTS FOR STATIC TIMING ANALYSIS

1. setup and hold times are for flops not for design.. u need not calculate it. the fab will caluclate and u have to ensure that these timings are not violated in your fix setup/hold violations redesign your logic... try to reduce the combinational path delay , wire delay , parasitics etc.. 3,5. rise and fall (...)

## how to calculate slack in a digital circuit

if you are doing ASIC design, sure the synthesis tools and layout tools will list the worst slack path based on the constraints you feed into the tools. if you are doing full customer, you have to run simulation to know how critical the path is regarding you expectation. in the case you want to mannually calculate delay for some estimation c