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Altera_Forum
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15 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
15 years ago

Thanks for your reply！

I confirm that I do not measure the wrong output pin. when I set the (pseudo)LVDS ouput to a signal ‘reset’ (the default value is low), output(P) is low and output (N) is high. But I set the (pseudo)LVDS ouput to constant number '0'，output(P) is high and output (N) is low.

So I feel confused, I will check the performance of other (pseudo)LVDS.