RE: 3.3V interfacing to the CBM
Date: 2002-12-10 08:22:06

Hello Spiro,

>> defeated by having to buffer the outputs.... Some Xilinx chips were 5V
>> originally, but the supply I was to go through only sells 3.3V
>> boards/chips.....

>Using transistors to drive the 5V wouldn't help either, would it? >;-)

Well its along the lines I was guessing... if CPLD pins can be defined as
Hi/Lo/Z then I could spec them as Lo/Z (just like an O/C device) and use a
pull-up. But I don't know if this is common practice, or logically

- Nick


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