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5881 Discussions

Interfacing Stratix 10 PMA with custom PCS

HBhat2
New Contributor II
473 Views

Hi,

 

I am planning to develop custom PCS which supports Symbol encoding of 128b/132b and implements Scrambling and RS-FEC of different polynomials compared to existing native PHY IP for L-tile XCVR of Stratix 10. I know that I need to use PCS direct to use only PMA from the L-tile native PHY and the data width supported by PCS direct is 64-bit max. Considering the scenario that after encoding 128b/132b, data width of custom PCS will become 132bit wide. How I map the 132bit encoded data to 64bit PCS direct data width? Also, provide material references / documents/ example designs which guide me to interface a custom PCS to PMA block.

 

With regards,

HPB

0 Kudos
3 Replies
HBhat2
New Contributor II
136 Views

Hi,

I explored further and I understand that Gearbox is used for adapting the encoded data width to PMA data width. I think, in PCS direct mode Transmitter/receiver gearbox will not be enabled. Can anyone guide me to implementing the custom Gearbox for Stratix 10 XCVR PMA?

 

With Regards,

HPB

CheePin_C_Intel
Employee
136 Views
Hi HPB, As I understand it, you are inquiring about implementing custom gear in S10 device. For your information, your inquiries seems more toward design service related. Generally we would address specific inquiry/problem of the FPGA instead of design related inquiry. Sorry for the inconvenience. Alternatively, you may try to get in touch with our design partners at https://www.intel.com/content/www/us/en/programmable/solutions/partners/design-solutions-network/fin.... Please note that there will be charges to the design service. Please let me know if there is any concern. Thank you. Best regards, Chee Pin
HBhat2
New Contributor II
136 Views

Hi Chee Pin,

 

I meant anybody help me with specific guidelines/documents to implement the gearbox specific to PMA block. Sorry for the miscommunication carried out in the previous reply.

 

With regards,

HPB

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