[geeks] Carly's Gone!!!

Dave Fischer dave at cca.org
Fri Feb 11 15:33:18 CST 2005


lefa at ucsc.edu writes:

>On Thu, 10 Feb 2005, Charles Shannon Hendrix wrote:

>> Well, PCI wasn't supposed to have been exposed as a mezzanine bus at
>> all, but a chip interconnect.  It wasn't good enough for a system bus,
>> and got morphed into a mezzanine bus.

>Huh? Where did you get that information? Never heard of a "mezzanine bus"
>care to explain? PCI was never intended as a chip interconnect, again... I
>have no idea that there were standarized "chip interconnects" it is a
>periferal bus, local bus at the beginning, then it had to be part of a
>bridged chipset due to the fact the front bus in the P5 et al was much
>faster than the 33Mhz local bus of the 486 that the PCI was modeled after.

No, Charles is correct. PCI's first incarnation never saw the light
of day, and by the time the public heard about it, it was just an
IO bus, but its original design was a system bus.

----- David Fischer ------- dave at cca.org ------- http://www.cca.org ------
-- Being poked in the eye with a pointy stick makes The Baby Jesus cry. --



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