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©
2017
congatec
AG
MA50m17
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5
Connector Subsystems Rows A, B
The conga-MA5 is connected to the carrier board via a 220-pin connector (COM Express Type 10 pinout). This connector is broken down into
two rows (rows A and B). The following subsystems can be found on conga-MA5 COM Express connector rows A and B.
5.1
PCI Express™
The conga-MA5 offers up to four PCIe lanes externally on the COM Express connector. The lanes are Gen 2 compliant and offer support for
full 5 Gb/s bandwidth in each direction per x1 link. Default configuration for the lanes is 3 x1 link. Other configurations are possible as shown
in the table below but require a customized BIOS firmware. Contact congatec technical support for more information.
The PCI Express interface is based on the PCI Express Specification 2.0 with Gen 1 (2.5 Gb/s) and Gen 2 (5 Gb/s) speed. For more information,
refer to the conga-MA5 pinout table in section 8 “Signal Descriptions and Pinout Tables” and table 16 "PCI Express Signal Descriptions".
Table 10
PCI Express™ Options
x1
x2
x4
Gigabit Ethernet
Default
3
Yes
Option 1
2
Yes
Option 2
1
Yes
Option 3
2
1
Yes
Option 4
4
No
Note
The options require a customized BIOS.
5.2
Gigabit Ethernet
The conga-MA5 offers a Gigabit Ethernet interface on the COM Express connector via the onboard Intel
®
I211 Gigabit Ethernet controller for
commercial variants and Intel
®
I210IT Gigabit Ethernet controller for industrial variants. This controller is connected to the Intel
®
Apollo Lake
SoC through a PCI Express lane.
The Ethernet interface consists of 4 pairs of low voltage differential pair signals designated from GBE0_MD0± to GBE0_MD3± plus control
signals for link activity indicators. These signals can be used to connect to a 10/100/1000 BaseT RJ45 connector with integrated or external
isolation magnetics on the carrier board.
