4-16 Product Principle
4.3.5 User I/O Interface Board
Mother
board
PC carrier
board
VGA
HDMI
S-Video
Serial
port
Ethernet
USB口
Audio out
WLAN
IOBOX
board
JTAG and acoustic
power interface
WIFI
module
Hard
drive
SATA interface
Fig 13 Principle Diagram of I/O Box Board
Function:
IO interface board includes functions as follows:
Provide user IO interface. IO interfaces are all from COME (CPU) module which is extended by
PC carrier board and connects to the IO interface. IO interface types include:
a) Video input and output interface
i. HDMI output
ii. VGA output
iii. SVIDEO output
b) Audio output port
i. Audio OUT
c) USB interface: 2, version 2.0 or above.
d) Ethernet port
Debug interface
a) Test signal of output acoustic power.
b) JTAG port of machine debugging
Standby status indicator
a) FPGA configuration status;
b) Power indicator.
Wi-Fi module is on the IO interface board. Connect with COME (CPU) module through mother
board and PC carrier board by PCIE and USB interface.