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Altera_Forum
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16 years ago

how to set the differential pin (I/O standard LVDS_E_3R) TO ZERO ?

I am using cyclone 3. I need a pair of differential output pins at bank 4. According to the datasheet, I choose LVDS_E_3R for the I/O standard. when I debug the design, I set the signal which connect...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

When using (pseudo)LVDS, you'll get an (P) and an (N) output.

So if you assign a '0' to this output, (P) will be low and (N) will be high.

If you measure a high when expecting a low, you are probably measuring the wrong output pin.

-- Ton