Spartan 3E inputs can be made 5V tolerant with a series resistor... http://www.xilinx.com/support/answers/19146.html
Dave G4UGM > -----Original Message----- > From: cctalk [mailto:[email protected]] On Behalf Of William > Maddox > Sent: 02 December 2015 08:32 > To: 'General Discussion: On-Topic and Off-Topic Posts' > <[email protected]> > Subject: RE: Oberon and the OberonStation (retro-style FPGA computing) > > >Do you have 5 volt I/O with the OberonStaion FPGA? > >I was thinking of using it as general FPGA card. > > The serial port is 3.3v according to the website. I haven't attempted to use > the serial port or the GPIO pins, but I believe they are all 3.3 volts for the > Spartan 3 series. Check the data sheet for the FPGA to be sure. There are > no level converters on the board, so whatever the FPGA provides is what > you get. > > BTW, as of this writing, the website is showing the fully-assembled boards as > available. > > --Bill > >
