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SDavi9's avatar
SDavi9
Icon for Occasional Contributor rankOccasional Contributor
1 year ago

Cyclone V Gx\GT Optical transceiver support

Does the Cyclone V Gx \ GT have the following OPTICAL Protocol Support :-
Other Ips
Kshitij_Intel's avatar
Kshitij_Intel
Icon for Frequent Contributor rankFrequent Contributor
1 year ago

Hi,

Support speed range of Cyclone V GX(622Mbps ~ 3.125Gbps) / GT (622Mbps ~ 5.0Gbps).

For #1, Minimum bit rate is 622MHz (max run length is 200 UI). You can refer to CV Datasheet.

https://www.intel.com/content/www/us/en/docs/programmable/683801/current/transceiver-specifications-for-cyclone.html

For #2, It should be totally balanced. I don't know exact allowable running disparity characteristics, but it should be within +/- 2or3 (<8B10B). You can find the limit by the web search like below.

For #3, Maybe it is AC-coupled configuration, so data toggling is needed to keep balannced signal. Same as #2 it should be DC-balance signal needed for AC-coupling.

Hope this will clarify.

Thank you,

Kshitij Goel

  • SDavi9's avatar
    SDavi9
    Icon for Occasional Contributor rankOccasional Contributor
    1 year ago

    Dear K**bleep**ij Goel,

    Do you have any design examples that could test this on a Cyclone V GT development board ? We specifically need a design that will enable us to transmit \ receive between a NIOS and an external optical transceiver ?

    Best regards

    Shmuel