Starting page # Specs ## Interfaces - SERDES - 20 bi-directional lanes - eight for OMI(DDR4 on top of SERDES with OpenCAPI protocol) - one for ethernet - 8 for PCIE - [OpenFSI](https://openpowerfoundation.org/?resource_lib=field-replaceable-unit-fru-service-interface-fsi-openfsi-specification) instead of JTAG - [Raptor HDL](https://gitlab.raptorengineering.com/raptor-engineering-public/lpc-spi-bridge-fpga) - [Raptor Libsigrok](https://gitlab.raptorengineering.com/raptor-engineering-public/dsview/-/tree/master/libsigrokdecode4DSL/decoders/fsi) - USB - [Luna USB](https://github.com/greatscottgadgets/luna) with [USB3300 PHY](https://www.microchip.com/wwwproducts/en/USB3300#datasheet-toggle) ## Protocols - IPMT over i2c to talk to the BMC - [Intel Spec Sheet](https://www.intel.com/content/dam/www/public/us/en/documents/product-briefs/second-gen-interface-spec-v2.pdf) - [RaptorCS HDL](https://www.intel.com/content/dam/www/public/us/en/documents/product-briefs/second-gen-interface-spec-v2.pdf)