Hi All, I do not have in depth knowledge of signal. I had one query on R_fixture. In our current system, we have tool which write IBIS file but when we increase R_fixture . what will be impact on IBIS data point for rise and fall waveform. As per my understanding, we identify point from pullup and pulldown which does not have any impact of R_fixture. Thanks Abhishek Goswami Phone No -07829580867/9962270999 Skype : abhishekgoswami1 ------------------------------------------------------------------ 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 forum is accessible at: http://tech.groups.yahoo.com/group/si-list 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