Product Principle 4-9
4.3.1 PC Module
PC module aggregates CPU, iGPU (core graphics/integrated graphics), host bridge (IO extension),
memory bank, network adaptor, etc. Together with PC carrier board and hard disk, as the
calculation and control center of the entire unit, PC module fulfills the comprehensive functions on
the computer system.
The processer of DC-70 is Intel Celeron 1020E QM77; the memory capacity is DDR3L, which is 4
GB.
4.3.2 PC Carrier Board
With extensive functions, PC carrier board is built on PC module. The functions include:
Supports PC module.
Supports GPU module.
Extends various interfaces on PC platform to interact with the user or communicate with or
control other modules inside the device. The distribution and extension interfaces are: video,
audio, USB, SATA, PCI-E, Ethernet, 12C, UART, etc.
PC module manager. It meets the specialized sequence requirements of peripherals and
specialized application requirements to power supply system.
System resetting function. The resetting of the device is evoked by PC module.
System monitoring function. It monitors the voltage current, the temperature and fan speed.
System upgrade function.
IO Board
PC Carrier Board
PCIE bus
PC
Module
Global reset
Printer
Audio Expansion
HAD bus
Primary Display
Secondary Display
Configuration status
Ethernet
PCIE
USB
HDMI, DDC
VGA, DDC
S-Video
Audio (L/R)
JTAG (downwards)
Configuration status
S-Video
USB
Engine Brd
JTAG
Fans
Front Panel
USB
PWRBTN#
Control
Panel
USB
MIC
Status indication
Speaker
Audio(L/R)
DVI, DDC
DVI, DDC
Touch Screen
USB
Hard Disk
DVD-RW
SATA
SATA
MF FPGA
Video
Expansion
DDR
IO
Expansion
LPC bus
digital video
Back- End
Monitoring
global reset control
PC Manager (EC)
control
Mother
Board
JTAG (downwards)
Figure 4-8 Diagram of PC carrier board
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