Hi All, I am validating the DDR memory controller from 3rd party IP. With related to the ODT settings of the DDR device, how to qualify and quantify which of the 3 options(75,150,50Ohm) gives the better results. I saw few waveforms on the website which shows an eye pattern of the w/f. But i didnot understand how this is created using a differential signal probed using an differential probe. Thanks in advance Regards, Sudarshan ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.net List archives are viewable at: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu