Lvds Flat Panel Interface - Congatec conga-CEVAL User Manual

4.1.9

LVDS Flat Panel Interface

Pin LVDS Output
1 LVDS_I2C_DAT
3 N.C.
5 GND
7 LVDS_A0+
9 LVDS_A1‑
LVDS_BKLT_EN LVDS panel backlight enable. (see
11
13 LVDS_A2‑
15 LVDS_A_CK‑
17 N.C.
19 LVDS_A3‑
LVDS_B0-
21
23 GND
LVDS_B1+
25
LVDS_B2-
27
29 GND
LVDS_B_CK-
31
LVDS_B3+
33
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.
Configuration
Jumper X69
Backlight enable HIGH active (default)
1 ‑ 2
Backlight enable LOW active (inverted)
2 ‑ 3
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.
Copyright © 2012 congatec AG
Description Pin LVDS Output
I²C data line for LVDS display use 2
4
Power Ground 6
LVDS Channel A differential pairs 8
LVDS Channel A differential pairs 10
12
jumper X4)
LVDS Channel A differential pairs 14
LVDS Channel A differential clock 16
18
LVDS Channel A differential pairs 20
LVDS Channel B differential pairs
22
Power Ground 24
LVDS Channel B differential pairs
26
LVDS Channel B differential pairs
28
Power Ground 30
LVDS Channel B differential clock
32
LVDS Channel B differential pairs
34
Description
LVDS_I2C_CK I²C clock output for LVDS display use
N.C.
LVDS_A0‑ LVDS Channel A differential pairs
LVDS_VDD_EN LVDS panel power enable
LVDS_A1+ LVDS Channel A differential pairs
LVDS_A2+ LVDS Channel A differential pairs
N.C.
LVDS_A_CK+ LVDS Channel A differential clock
LVDS_A3+ LVDS Channel A differential pairs
GND
LVDS_B0+ LVDS Channel B differential pairs
LVDS_B1- LVDS Channel B differential pairs
GND Power Ground
LVDS_B2+ LVDS Channel B differential pairs
LVDS_B_CK+ LVDS Channel B differential clock
N.C.
LVDS_B3- LVDS Channel B differential pairs
Backlight Polarity Config
CEVA_c_m10
33 31 29 27 25 23 21
34 32 30 28 26 24 22
(X69)
3
2
1
LCD
(X13)
19 17 15 13 11 9 7 5 3 1
20 18 16 14 12 10 8 6 4 2
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