[SI-LIST] : A PCI signal ringback question

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From: Su Ming TAI (sm_tai@uti2000.co.jp)
Date: Sat Dec 23 2000 - 03:09:55 PST


Dear SI Gurus,

Hi! I'm doing some simulation on the PCI bus and there are some signals
(Data) having ringback low on the waveforms (see attachment). The ringback
low has almost reached the Vinl (0.8V) and what will happen if it does go
above the Vinh (assuming the worst case)?
Does it indicate a major SI problem here?
Any comments or explanations would be welcome.

Thanks.

Regards,
Su Ming TAI



pci_ringback.jpg

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