Hi all, Can you explain about flight time??? -----Original Message----- From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of Athidhi Sent: Monday, March 26, 2007 5:11 PM To: si-list@xxxxxxxxxxxxx Subject: [SI-LIST] timing analysis Hi all i want to know practially how to do a timing analysis in the board i have these questions 1.wht flight time values we have to take for setup and hold time marigns calculatons i.e can we take flight time for the rising edge for both setup and hold calculations?if we get a negitive values of flight times,can we take these -ve flight times into calculations. 2.Is it correct: *hold margin= data valid window- setup margin-setup time- hold time.* ------------------------------------------------------------------ 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 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 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.413 / Virus Database: 268.18.18/733 - Release Date: 3/25/2007 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.413 / Virus Database: 268.18.18/734 - Release Date: 3/26/2007 ------------------------------------------------------------------ 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 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