BOM cases, PCI. M2/PCI notes

hardware/m2/README.md

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+# Cubo Libre M.2
+
+The SiFive HiFive Unmatched board comes with two M.2 connectors,
+as described in the Getting Started Guide:
+
+* M.2 E Key Connector for WiFi/Bluetooth.
+
+* M.2 M Key Connector for NVMe SSD.
+
+# BOM
+
+In the bill of materials, these components are used for attaching
+M.2 devices:
+
+* `P/N J0000059`,
+`CONN M.2 EDGE M KEY DUAL FMALE 67POS 0.020`.
+Two manufacturer components are listed:
+
+* Antenk Electronics `AP-APCI0079-P`,
+
+* `TE Connectivity 1-2199119-5`.
+
+* `P/N J0000089`,
+`CONN M.2 EDGE E KEY DUAL FMALE 67POS 0.020`.
+Two manufacturer components are listed:
+
+* Antenk Electronics `AP-APCI0085-B`.
+
+* TE Connectivity `2199119-4`.
+
+* `P/N K0000002` is an M.2 spacer, two on the motherboard:
+`M.2 SMD SPACER M2.5 SCREW`.
+Manufacturer: Penn Engineering, P/N `SMTSO-M25-2ET`.
+

hardware/pci/README.md

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+# Cubo Libre PCI
+
+The SiFive HiFive Unmatched board comes with one PCI slot,
+as described here in the Getting Started Guide:
+
+* PCI Express up to Gen3 x8 via a PCIe x16 slot
+
+* Physical slot connector is `P/N J0000054`,
+`CONN PCI EXP FEMALE 164POS 0.039`.
+
+* Manufacturer, P/N: Amphenol, `10018783-10103TLF`.
+
+* PCI Bridge: Asmedia `ASM1042A-48`.
+
+* IC OSC PCI EXPRESS GEN 3 - 2 OUTPUT.
+Silicon Labs `Si52112-B6-GM2`.
+