How to guarantee Trhff for hot-swap

[Richard Walter <rwalter@Brocade.COM>]

Folks,

I'm hoping that someone out there can answer this (potentially) simple
question.

How to people guarantee the Trhff requirement in table 4-6, section 4.2.3.2
in PCI 2.2 when enabling a device during hot insertion?

Trhff requires that there be a minimum of 5 PCI clocks from the time that
RESET# is deasserted until the device sees it's first FRAME# going active.
In a hot-swap environment, a newly inserted card will have it's RESET#
asserted and then deasserted while potentially other independant PCI
activity is going on.  How do you guarantee that RESET# won't go away in the
middle of another transfer, violating the Trhff?

Thanks

-Richard Walter
Hardware Engineer
Brocade Communications
rwalter@brocade.com
Note: I speak for myself, not for Brocade Communications