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signals between module and carrier/backplane. Additional components required for a particular Ethernet mode –
such as LED controller, etc.. - are populated on the carrier/backplane
PCI Express Gen4 support
The COMe PCIe #0-15 from the SOC-PCH hosts PCIe Gen3 root devices and provides the necessary clock.
The COMe PCIe #16-31 from the CPU hosts PCIe Gen4 root devices, but needs a high accuracy external clock source.
The additional clock source provides the reference clock to the CPU and also to the Carrier board PCIe Gen4 target,
over the 2nd set of PCIe clock reference pins provided in COM.0 Rev 3.1.
3.3.2.
COM.0 Rev 3.0: available on request (legacy mode)
10G LAN - "legacy" mode
For selected 10GbE modes the required additional components are directly populated on the COMe-bID7 module. The
legacy mode enables those components on the module, which allow using the COMe-bID7 module on
carriers/backplanes designed according to the COM Express specification COM.0 Rev 3.0.
PCI Express Gen3 support
There is a single 100 MHz PCI Express reference clock delivered over the COM Express connector.
3.4. Memory
Up to 4x SODIMM Socket DDR4 non-ECC/ECC, height: 4+8mm
2x SODIMM sockets on top side – max. DDR4-2933 MT/s (depends on the processor SKU)
Optional additional 2x SODIMM sockets on the bottom side (will be out of PICMG spec) – max. DDR4-2666 MT/s
(depends on the processor SKU)
Table 6: Memory Features
Socket
Memory Type
Memory Module Capacity
www.kontron.com
Default: 2x DDR4 SO-DIMM
On request: 4x DDR4 SODIMM
DDR4, up to 2933 MT/s, up to 32 GB per socket
8, 16 and 32 GB
COMe-bID7 User Guide Rev. 1.2
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