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4.1.9 LVDS Flat Panel Interface
Pin LVDS Output Description Pin LVDS Output Description
1 LVDS_I2C_DAT I²C data line for LVDS display use 2 LVDS_I2C_CK I²C clock output for LVDS display use
3 N.C. 4 N.C.
5 GND Power Ground 6 LVDS_A0‑ LVDS Channel A differential pairs
7 LVDS Channel A differential pairs 8 LVDS_VDD_EN LVDS panel power enable
9 LVDS_A1‑ LVDS Channel A differential pairs 10 LVDS Channel A differential pairs
11
LVDS_BKLT_EN
LVDS panel backlight enable. (see
jumper X4)
12 LVDS Channel A differential pairs
13 LVDS_A2‑ LVDS Channel A differential pairs 14 N.C.
15 LVDS_A_CK‑ LVDS Channel A differential clock 16 LV LVDS Channel A differential clock
17 N.C. 18 LVDS Channel A differential pairs
19 LVDS_A3‑ LVDS Channel A differential pairs 20 GND
21
LVDS_B0- LVDS Channel B differential pairs
22
LVDS Channel B differential pairs
23 GND Power Ground 24
LVDS_B1- LVDS Channel B differential pairs
25
LVDS Channel B differential pairs
26 GND Power Ground
27
LVDS_B2- LVDS Channel B differential pairs
28
LVDS Channel B differential pairs
29 GND Power Ground 30
LV LVDS Channel B differential clock
31
LVDS_B_CK- LVDS Channel B differential clock
32 N.C.
33
LVDS Channel B differential pairs
34
LVDS_B3- LVDS Channel B differential pairs
Connector Type
X13: 34 pin, 2 row 2mm grid header.
The polarity of the backlight enable signal LVDS_BKLT_EN from the COM Express™ module can be set up using configuration jumper X69.
Jumper X69
Configuration
1 ‑ 2
Backlight enable HIGH active (default)
2 ‑ 3
Backlight enable LOW active (inverted)
Connector Type
X69: 2.54mm grid jumper.
Note
See section 4.1.9.2 “Flat Panel and Backlight Power Supply Connection” for information about connection possibilities for the Backlight Polarity
Config. jumper X69.
1 3
2 4
5
6
7
8
9
10
LCD
(X13)
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
1
2
3
Backlight Polarity Config
(X69)