SECOnITX-ION
User Manual
- Rev. First Edition: 0.1 - Last Edition: 1.2 - Author: S.B. - Reviewed by G.M.
Copyright © 2011 SECO s.r.l.
SECOnITX-ION
pag. 26
3.3.7.3 LVDS Connector
SECOnITX-ION board can be interfaced to LCD displays using its optional LVDS interface, which
allows the connection of displays with a color depth of 18 or 24 bit, single or dual channel. This
interface is realized convertin
g MMP9’s native TMDS interface, the same that would be used for
DVI connection.
For this reason, it is possible to use only one interface, between DVI and LVDS. Selection is made
in production phase of the board.
For the connection, a connector type JST B34B-PHDSS or equivalent (2 x 17p, male, straight, P2,
low profile, polarized) is provided, with the following pin-out.
LVDS Connector
– CN22
Pin
Signal
Pin
Signal
1
N.C.
2
N.C.
3
N.C.
4
N.C.
5
LVDS_A0-
6
GND
7
LVDS_VDD_EN
8
9
10
LVDS_A1-
11
12
LVDS_BKLT_EN
13
N.C.
14
LVDS_A2-
15
LV
16
LVDS_A_CK-
17
18
LVDS_BKLT_CTRL
19
GND
20
LVDS_A3-
21
22
LVDS_B0-
23
LVDS_B1-
24
GND
25
GND
26
27
28
LVDS_B2-
29
LV
30
GND
31
N.C.
32
LVDS_B_CK-
33
LVDS_B3-
34
3.3.7.4 LCD Power Pin Header
Onboard there is also a pin header intended for taking out power supplies, for an eventual panel
backlight module.
Backlight connection (CN20) is realised using a dual row, 10 pin, p2.54mmmm pin Header, with
following pinout.
LCD Power Pin Header
– CN20
Pin
Signal
Pin
Signal
1
+3.3V
DC
2
+12V
DC
3
+5V
DC
4
+12V
DC
5
+5V
DC
6
LVDS_Backlight_Enable
7
LVDS_VDD_Enable
8
LCD_PWM
9
GND
10
GND
