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where can i get memory model(verilog) ?

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xldu

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memory modelling verilog

hi, guys.
i am searching for a DDR SDRAM memory model which can support from 50M to
100M Hz clock. but i just find 100M, 133M and 266M.
is there any models which can satisfy my request?
 

luancao

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Go to the idt the cypress web site. You could find one easily.
 

xldu

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thanks,
but i find the models of memory on synopsys website are all fixed frequencies.
now i have a model but can only work on 100MHz.
is there a model whose work frequency is not fixed?
-----------------------------------------
another question:
if i want to know the real size of memory on chip, where can i look for this information?
 

tarkyss

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i think you can use the model of 100m or 133m, then modify it by youself according with specification
 

gliss

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Micron also has memory models.
Can you take a fast model and clock it down in simulation?
 

xldu

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to tarkyss:
do you think it is easy to modify the model?
what parameters shoule be modified if i don't have the specifications?

to gliss:
i have many difficulties in clocking it down in simulation, as the model is a ddr sdram, and can't find the documents refer to the model.
 

luancao

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refer the IDT or Cypress datesheet or Micron ...

There are both timing diarams and verilog descriptions.
 

gliss

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If you are willing to pay, you can get memory models from Denali.
 

tarkyss

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what are easy?
you can download the model specification from foundry, i dont understand how can you design you controller if you have not the specification?
 

jjww110

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you can download from xilinx websit
 

firendchn

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you can go to micron or samsung website to download the models you need.
 

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