I'm looking at this again, and I don't see any dedicated DMI mesh tiles. Are they just using 8/16 of the PCIe lanes for DMI?
— Redfire (@Redfire75369) May 7, 2022
That would explain Sapphire Rapids maxing out at 112 lanes, 8/16 of the remaining 16 lanes are downclocked and used for DMI with the Emmitsburg PCH. https://t.co/EUm5tCHjIB
MDF is Modular Die Fabric. UPI is Ultra Path Interconnect.
Core tiles and IMC tiles.
DMI is the Direct Media Interface.
PCH is platform controller hub
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