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[Discuss-gnuradio] I/O lines standards

From: Don Latham
Subject: [Discuss-gnuradio] I/O lines standards
Date: Fri, 20 Mar 2009 15:18:26 -0600 (MDT)
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I'm just checking so's I don't destroy my USRP mboard. The I/O lines such
as io_tx_13 etc. that are available on the flex 2400's seem to go straight
to the Cyclone FPGA. If that's the case, are they set to LVCMOS or LVTTL?
And, is the voltage used 3.3 V? I think I read the answer on the
schematics, but I need to check!
Thanks, All.

Dr. Don Latham AJ7LL
Six Mile Systems LLP
17850 Six Mile Road
POB 134
Huson, MT, 59846
VOX 406-626-4304

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