GE Mini COM Express 10, Hardware Reference Manual

Page: 24 / 82

4.1.1 Memory
The main memory array contains one channel of 72-bit wide DDR3L SDRAM, with
optional 2 GB, 4 GB, or 8 GB density. The system memory controller is integrated in the
G-Series SoC processor. A Serial Presence Detect (SPD) EEPROM, attached to the
internal SMBus, provides memory configuration information to the boot firmware.
Memory displays as a single-rank (2 or 4 GB) or dual-rank (8 GB) unbuffered DIMM.
The SPD chip also contains a temperature sensor physically located near the memory
array, allowing the refresh-time adjustments required for high-temperature operation.
Supported System Memory Options
Density Ranks Bus Width
2 GB 1 72 bit
4 GB 1 72 bit
8 GB 2 72 bit
4.1.2 Digital Display Interface
The mCOM10-L1500 supports two simultaneous video outputs with multiple modes. The
G-Series SoC integrates the new generation Radeon
Sea Islands GPU, which supports
DirectX 11.1. There is no independent memory dedicated to the GPU video frame buffer
so a portion of main memory must be reserved for this purpose. Two digital video outputs
are provided. Analog video is not used.
Video Outputs
Video Output Description Configuration
DP0 LVDS or Embedded DisplayPort Wired to COMe LVDS/eDP connector pins
DP1 DVI, HDMI, or DisplayPort Wired to COMe DDI0 connector pins
4.1.3 PCI Express
The G-Series SoC hosts two PCI Express (PCIe) root complex ports. Four ×1
general-purpose PCIe lanes are wired to the COM Express connector, and support Gen1
(2.5 Gbps) and Gen2 (5 Gbps) speeds. One lane of a ×4 PCIe port is wired to an on-board
Ethernet controller, while the remaining three lanes are unused.
24 GFK-2896 Mini COM Express Type 10 Module mCOM10-L1500
For public disclosure