timing analysis for DDR2 designs?

[venkat_kvr]

have any one done timing analysis on ddr2 designs?

 

[shivapugal]

Hi,

I have done lots of timing analysis on DDR2 memories. Post your queries here.

Shiva

 

[techzee]

Siva,

what are the things to consider before doing timing analysis. Wat data should be interpreted from the data sheet.
Help me through this. I haven't done timing analysis before. I wish to do it hereafter.

 

[Black Jack]

Siva,

what are the things to consider before doing timing analysis. Wat data should be interpreted from the data sheet.
Help me through this. I haven't done timing analysis before. I wish to do it hereafter.

Look at Mentor Hyperkynx.

 

[techzee]

In Hyperlynx can we do Timing analysis? We can oly simulate for signal quality with IBIS models right

 

[shivapugal]

Hi

We cant do timing analysis in hyperlynx unless we get ddrx analyzer which is a separate package in hyperlynx. contact your filed representative to get the license.

we need to take the setup and hold time from datasheet.

Thanks
Sivalingam

 

[techzee]

siva,
Thanks. DDRx wizard askes for rank right of the DIMM module?
Suppose I am using only DDR chips then in case what i need to fill up there.

 

[shivapugal]

Hi,

Rank is based on the no of chipsets and DIMM module you are using. DIMM module can contain upto 4 ranks means 4 chipset signals.If you have 2 rank you need to select 2 i believe. I do not use hyperlynx for timing analysis. sorry i could not support more on this.

Shiva