# Specs
## Interfaces
- - [OpenFSI]() instead of JTAG
- SERDES - 20 bi-directional lanes
- eight for OMI(DDR4 on top of SERDES with OpenCAPI protocol)
- one for ethernet
- 8 for PCIE
+ - [OpenFSI]() instead of JTAG
+ - [Specification](https://openpowerfoundation.org/?resource_lib=field-replaceable-unit-fru-service-interface-fsi-openfsi-specification)
+ - [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)