Hi! I saw my first IBIS model two week ago so I'm not very...."expert" but the TV curves falling waveform and rising waveform in the ibis spec are described as not required. so what about deleting them if they contain error (e.g." TVCurve do not start at time zero ")? how are used in simulation tools? for what purpose? thanks, Stefano ------------------------------------------------------------------ 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 archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu