MSC C6-MB-EVA
- PRELIMINARY -
User Manual
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Pin
Signal name
Function
1
A0
EEPROM Address 0 (PD 10k)
2
A1
EEPROM Address 1 (PD 10k)
3
A2
EEPROM Address 2 (PD 10k)
4
GND
Ground
5
SDA
Serial data
6
SCL
Serial clock
7
WP
Write protection (Ground, disabled)
8
VCC
Power supply 3V3
Table 16 Pin-out LVDS EEPROM Socket
The LVDS EEPROM address can be select with the nearby jumper block JP1601. To
use this option, the pull-up resistors must be assembled.
Pin
Signal name
Function
1-2
A0
EEPROM Address 0 connect to GND
3-4
A1
EEPROM Address 1 connect to GND
5-6
A2
EEPROM Address 2 connect to GND
Table 17 EEPROM Address JP1601
4.14.2
Backlight Inverter Interface
The supply voltage of the backlight can be adjusted with jumper JP1702. The according position
is printed on the PCB.
DIP switch S2906 #2 should be set according to the backlight inverter used.
If the inverter needs a low active start signal, DIP-Switch S2906 #3 has to be set open.
If the inverter needs a high active start signal, DIP-Switch S2906 #3 has to be set on.
Brightness of the backlight inverter is controlled via the LVDS-BKLT-CTRL signal.
The LVDS-BKLT-CTRL signal of the COM Express module is a PWM signal with current
chipsets. If jumper JP1703 is placed between pins 1-2, the signal is integrated and then limited to
the maximum allowable voltage of the backlight inverter via a voltage divider. If the jumper
JP1703 is closed between pins 2-3, the LVDS-BKLT-CTRL signal of the COM Express module is
routed straight to the backlight inverter connector.
Control voltage: 0...3V
A value of 0V corresponds to maximum brightness.
Specification:
References:
X1701
Connector:Molex (53047-0510) 53261-0590
Pin-out:
Refer to Table 18
Location: Refer to chapter 4.14 LVDS-Interface
Pin
Signal name
Function
1
VCC
Power supply backlight
2
GND
Ground
3
BLON#
Backlight On
4
VCON
Brightness control
5
GND
Ground
Table 18 Pin-out Backlight
