VIA Technologies EITX-3000, User Manual

Page: 27 / 103

17
LVDS Connectors: LVDS1 and LVDS2
The EITX-3000 supports two 24-bit single channel LVDS interface
connectors by two D-Sub 26-pin connectors as “LVDS1” and
“LVDS2” on rear I/O coastline, both connectors also carry the
inverter control signals, and can direct connect to two of LVDS
LCD Display via external cables.
Built in LCD Backlight On/Off and Brightness
control signals
Both LVDS1 and LVDS2 connectors all build in the control signals
of “BLON” signal, “BRIGHTNESS_CTL
”
as well as +12V, +5V and
Ground Pin signals that allow developers/applicants to connect
these signals to LCD Inverter to implement the LCD backlight
On/Off control and brightness control.
•
Provides “BLON” signal that inverter Module require for
controlling the Backlight On/Off.
•
Provides the 12V, 5V as the Inverter Power Source.
•
The “BRIGHTNESS_CTL
” signal pin could be connected to LCD’s
Inverter that allow
applicant to implement brightness adjustment
through customer’s software utility.
LVDS1
Pin Signal Pin Signal
1 +LCLK1 14 GND
2 -LCLK1
15 +LD1C3
3 GND 16 -LD1C3
4 +LD1C2 17 GND
5 -LD1C2 18 GND
6 GND
19 +LD1C1
7 +LD1C0 20 -LD1C1
8 -LD1C0 21 GND
9 SPCLK1 22 SPD1
10 PVDD1
23 PVDD1
11 IVDD1_12V 24 IVDD1_12V
12 BLON1
25 BRIGHTNESS_CTL1
13 IVDD1_5V 26 IVDD1_5V