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Altera_Forum
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19 years ago

Anyone know where2 find max tso and th for sdram

Hi everyone,

Does anyone have experience on finding maximum holding tim and setup time for calculation needed for SDRAM timing??

I am abit confused as to which one to use... there are many in the timing report for th and tsu but, the actual tsu and th I found are quite different to the ones used as example in altera doc " SDRAM controller core with Avalon interface".

I had -0.963 for th but it's -5.6 ns in the example. Is this what I should be getting??

because the phase shift I am using (-3.5ns) is close to that of the example (-3.35) so I should be getting similar result....

The sdram i use is the same as the one used in the example. http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/blink.gif
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