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How can I use Cyclone 10GX LVDS SERDES IP without PLL?

silenfax
Beginner
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Hello, I setup LVDS SERDES IP with external PLL. Can I clocking ext_fclk, ext_loaden, ext_coreclock directly without external PLL?

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EngWei_O_Intel
Employee
163 Views

Hi there

 

Nope. If you are setting the LVDS to external PLL mode, you need to connect necessary pins from IOPLL to those pins, else Quartus will be flagging error. You can refer the connection from:

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/archives/ug_altera_lvds-...

 

 

Thanks.

Eng Wei

silenfax
Beginner
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