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PCIE GEN 2 Speed grade in A10 FPGA

CLeon14
Beginner
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Hello, My targeted A10 device is 10ax057h4f34e3vg. However I found from the A10 PCIE user guide, the recommended speed grade for all PCIE GEN is 1 and 2 only.

What is the reason speed grade is not recommended? I am now successfully compile the PCIE GEN 2 design in 10ax057h4f34e3vg and I don't see any timing warning.

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SengKok_L_Intel
Moderator
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Hi,

 

The core speed rate of this A10 device is -3.

 

As per table 7 in the link below, the Gen 3 is supported in x2 with 128 bits interface and x4 with 256bits interface. Other settings may have timing concerns so that it is not recommended.

 

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug_a10_pcie_avst.pdf

 

Regards -SK

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SengKok_L_Intel
Moderator
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This is to inform you that, I am putting the status of this case to close-pending. If you’re still in need of assistance, please reopen this case within the next 20 days.

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