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3.3.3 LVDS / eDP + backlight connector
SBC-992-pITX can be interfaced to LCD displays using its LVDS or embedded Display Port interface (only one interface is available, depending on the factory
configuration of the board purchased).
LVDS / eDP connector - CN21
LVDS Interface
Pin
Signal
Pin
Signal
1
+12V
2
+12V
LCD
3
+3.3V
4
+5V
LCD
5
+3.3V
6
+5V
LCD
7
8
9
LVDS_A0-
10
LVDS_A0+
11
12
13
LVDS_A1-
14
LVDS_A1+
15
16
17
LVDS_A2-
18
LVDS_A2+
19
20
21
---
22
---
23
24
25
26
LVDS_CLK+
27
28
29
30
Here following the signals related to LVDS management:
LVDS_A0+/LVDS_A0-: LVDS Channel #0 differential data pair #0.
LVDS_A1+/LVDS_A1-: LVDS Channel #0 differential data pair #1.
LVDS_A2+/LVDS_A2-: LVDS Channel #0 differential data pair #2.
SBC-992-pITX
SBC-992-pITX User Manual - Rev. First Edition: 1.0 - Last Edition: 2.0 - Author: S.B. - Reviewed by G.G Copyright © 2016 SECO S.r.l.
eDP Interface
Pin
Signal
1
+12V
LCD
LCD
3
+3.3V
LCD
LCD
5
+3.3V
LCD
LCD
7
GND
9
eDP0_TX2-
11
GND
13
eDP0_TX1-
15
GND
17
eDP0_TX0-
19
GND
21
+3.3V_S
23
GND
25
eDP0_TX3-
27
BKLT_EN
29
eDP0_AUX-
With LVDS interface, it is possible to connect 18 bit single
channel displays, while embedded Display Port allows use
of 18-, 24- and 30-bit displays.
For the connection, a connector
Pin
Signal
type HR A1014WVA-S-2x15P or
equivalent (2 x 15p, male, straight,
2
+12V
LCD
P1,
low
4
+5V
LCD
provided, with the pin-out indicated
in the following table (different
6
+5V
LCD
configurations are shown).
8
GND
Mating connector: HR A1014H-2X15P with HR A1014-T
10
eDP0_TX2+
female crimp terminals.
12
GND
Alternative mating connector, MOLEX 501189-30120 with
14
eDP0_TX1+
crimp terminals series 501334.
16
GND
On the same connectors, are also implemented signals for
18
eDP0_TX0+
direct driving of display's backlight: voltages (+12V
+5V
and +3.3V
20
GND
LCD
signal @ 5V, BKLT_EN, and Backlight Brightness Control
22
eDP_HPD
signal, BLT_CTRL).
24
GND
When building a cable for connection of LVDS / eDP
26
eDP0_TX3+
displays, please take care of twist as tight as possible
differential pairs' signal wires, in order to reduce EMI
28
BLT_CTRL
interferences. Shielded cables are also recommended.
30
eDP0_AUX+
profile,
polarised)
is
) and control signals (Backlight enable
LCD
,
LCD
28
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