hi,si-guru, I'm reading a book about pci spec.,and I noticed that PCI's transfer need no hold time (it is 0ns),what's the meaning of this clause? I'm not familiar the hardware implement of PCI device,if it's easy to implement hold time be 0ns(I think it's easy because pci device is very popular in market),why not produce device which need no hold time,I think it can reduce hardwork for si simulation. Perhaps it's a silly thought,but I'm not sure of it.Can anyone give some advice on it? Hao 2002.9.14 ------------------------------------------------------------------ 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