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Deserializers in Agilex 3 series

UMall1
New Contributor I
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I have a design that includes a Deserializer - originally designed for a Cyclone III device - that I want to import to an Agilex 3 device. The deserialization factor in my design is 10 see attached image. How do I import this Deserializer to the Agilex 3 device. Agilex 3 as far as I understand does not support deserialization factors of 10 (x1, x2, x4 to x8) supported. Do I understand the Agilex datasheet correctly - it does not allow deserialization factor of 10. I do not at this time have access to Quartus Prime and I therefore cannot see in software what options are available in the chip.

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FvM
Honored Contributor II
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Hi,
there should be no problem to implement the functionality of original Cyclone III altlvds_rx IP in Agilex 3 fpga fabric without dedicated serdes IP because Cyclone III altlvds_rx hasn't advanced serdes features like DPA or CDR. Limitation of Agilex 3 and Agilex 5 serdes shows however when you try to port industry standard interfaces like receiver for 8b10b encoded data with CDR from Cyclone 10 GX or Arria 10.

Regards
Frank
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UMall1
New Contributor I
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I do not believe I understood your answer very clearly. Do you mean that the Agilex 3 device will not be able to implement the x10 deserialization factor?

 

Is the MiPi interface also limited to 8b deserialization?

 

UM

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FvM
Honored Contributor II
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I was referring to Agilex 3 serdes limitations mentioned in your post and meaned to say that the Cyclone III equivalent functionality can be achieved without dedicated serdes IP.
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