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Re: 5V vs. 3.3V signaling
We sell P2P bridge boards that do the voltage translation that you need.
One of our solutions will run the secondary PCI bus as low as 2Mhz (with
the primary bus still running at 33Mhz). The cards are 64-bit PCI.
On Fri, 25 Aug 2000, Alex Horvath wrote:
> I have a system that I need to design a adapter card for that uses 5V
> signaling but my adapter card PCI interface chip only supports 3.3V
> signaling. Someone suggested that I use a "translator" chip that takes
> 3.3V PCI signals and converts them to 5V and vice versa (of course with
> virtually zero delay) but I doubt anything like that exists. The other
> possibility, although brute force, is to use a PCI-PCI bridge which
> supports both signaling standards. Anybody ever confront this problem?
> Alex Horvath
> Cisco Systems
> 190 West Tasman Dr.
> San Jose, CA 95134
> Voice: 408-853-3289
-- Neal Palmer
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