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agula's avatar
agula
Icon for Occasional Contributor rankOccasional Contributor
4 years ago

PCIe Stratix 10 Avalon ST

Hi All, How does the credit tracking interface operate ? The tx_nph_cdts[7:0] signal in particular. How does this signal work. Does it report how many credits are available to the application fo...
KhaiChein_Y_Intel's avatar
KhaiChein_Y_Intel
Icon for Regular Contributor rankRegular Contributor
4 years ago

Hi,


From the RTL, you will know the limit of Flow Control credits for non-posted TLPs but not the credit restored. There is no signal where you can read the number of credit restored. If you are interested in the net value, you may refer to tx_nph_cdts and tx_npd_cdts.


Thanks

Best regards,

KhaiY