CCOMe-C96
CCOMe-C96 - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. Copyright © 2021 SECO S.p.A.
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LVDS Connector
CCOMe-C96 board allows to interface to Single/Dual Channel 18-/24-bit displays, using the LVDS
channel coming directly from the COM Express module.
The LVDS interface will be available on a connector type HR A1014WV-S-2x25P or
equivalent (2 x 25p, male, straight, P1, low profile, polarised), with the pin-out shown
in the table on the left.
Mating connector: HR A1014H-2X25P with HR A1014-T female crimp terminals.
Alternative mating connector, MOLEX 501189-5010 with crimp terminals series
501334.
On the same connectors, are also implemented signals for direct driving of display
’
s backlight: voltages
(VDD_BKLT and VDD_LCD) and control signals (LCD enable signal, LCD_VDD_EN, Backlight enable
signal, LCD_BKLTEN, and Backlight Brightness Control signal, LCD_BKLT_PWM and
LCD_BKLT_AN_CTRL).
When building a cable for connection of LVDS displays, please take care of twist as tight as possible
differential pairs signal wires, in order to reduce EMI interferences. Shielded cables are also
recommended.
VDD_LCD: LCD Voltage rail. Its value can be
set to +3.3V_RUN or +5V_RUN by using
dedicated jumper JP13, which is a standard pin
header, P2.54mm, 1x3 pin.
VDD_BKLT: Backlight Voltage rail. Its value can
be set to +5V_RUN or +12V_RUN by using
dedicated jumper JP12, same of JP13.
Signal Description:
LVDS0_D[0..3]+ / LVDS0_D[0..3]-: COM Express Module LVDS Channel#0 Differential pairs
LV / LVDS0_CLK-: COM Express Module LVDS Channel#0 Differential clock
LVDS1_D[0..3]+ / LVDS1_D[0..3]-: COM Express Module LVDS Channel#1 Differential pairs
LV / LVDS1_CLK-: COM Express Module LVDS Channel#1 Differential clock
LVDS connector CN44
Pin
Signal
Pin
Signal
2
VDD_BKLT
1
VDD_LCD
4
VDD_BKLT
3
VDD_LCD
6
VDD_BKLT
5
VDD_LCD
8
GND
7
3.3V_RUN
10
L_CONN
9
GND
12
LVDS0_D0-_CONN
11
L_CONN
14
GND
13
LVDS0_D1-_CONN
16
L_CONN
15
GND
18
LVDS0_D2-_CONN
17
L_CONN
20
GND
19
LVDS0_D3-_CONN
22
LV_CONN
21
GND
24
LVDS0_CLK-_CONN
23
L_CONN
26
GND
25
LVDS1_D0-_CONN
28
L_CONN
27
GND
30
LVDS1_D1-_CONN
29
L_CONN
32
GND
31
LVDS1_D2-_CONN
34
L_CONN
33
GND
36
LVDS1_D3-_CONN
35
LV_CONN
38
GND
37
LVDS1_CLK-_CONN
40
GND
39
GND
42
LCD_BKLT_CTRL
41
LCD_BKLT_EN
44
LCD_VDD_EN
43
LCD_BKLT_AN_CTRL
46
---
45
---
48
---
47
---
50
LVDS_I2C_CLK
49
LVDS_I2C_DAT
JP12 position
Backlight Power selector
1-2
+12V_RUN
2-3
+5V_RUN
JP13 position
LCD Power selector
1-2
+5V_RUN
2-3
+3.3V_RUN