Embedded Lcd Displays Connectors - Seco Qseven CQ7-A42 User Manual

3.3.6

Embedded LCD displays connectors

It is possible to purchase the CQ7-A42 carrier board with two alternative configurations, with referral to the embedded LCD displays options.
The first option includes a unique internal connector for LVDS connections. This allows the connection of displays with a colour depth of 18 or 24 bit, single or dual
channel.
Please notice that the effective support of this kind of displays depends only by the Qseven
the carrier board itself. The pin-out of this connector is given according to Qseven
module that follows those specifications. Please refer to the CPU module's User manual for the details regarding the panels supported and the availability of the
eDP/LVDS signals.
Optional LVDS connector - CN16
Pin Signal
2 LVDS_DID_DAT
4 +3.3V_S
6 GND
8 LVDS_A0+/eDP0_TX0+
10 LVDS_A1-/eDP0_TX1-
12 LVDS_BACKLIGHT_EN
14 LVDS_A2-/eDP0_TX2-
16 LVDS_A_CLK-/eDP0_AUX-
18 LVDS_BLT_CTRL
20 LVDS_A3-/eDP0_TX3-
22 LVDS_B0-/eDP1_TX0-
24 GND
26 LVDS_B1+/eDP1_TX1+
28 LVDS_B2-/eDP1_TX2-
30 GND
32 LVDS_B_CLK-/eDP1_AUX-
34 LVDS_B3+/eDP1_TX3+
CQ7-A42
CQ7-A42 - Rev. First Edition: 1.0 - Last Edition: 2.0 - Author: S.B. - Reviewed by G.G. Copyright © 2016 SECO S.r.l.
Pin Signal
1 LVDS_DID_CLK
3 +3.3V_S
5 LVDS_A0-/eDP0_TX0-
7 LVDS_VDD_EN
9 LVDS_A1+/eDP0_TX1+
11 LVDS_A2+/eDP0_TX2+
13 eDP0_HPD
15 LVDS_A_CLK+/eDP0_AUX+
17 LVDS_A3+/eDP0_TX3+
19 GND
21 LVDS_B0+/eDP1_TX0+
23 LVDS_B1-/eDP1_TX1-
25 GND
27 LVDS_B2+/eDP1_TX2+
29 LVDS_B_CLK+/eDP1_AUX+
31 eDP1_HPD
33 LVDS_B3-/eDP1_TX3-
®
module used with the carrier board, it is not a feature dependent from
®
specifications, so that the carrier board is ready for the use of any Qseven
For the connection, a connector type JST B34B-
PHDSS or equivalent (2 x 17p, male, straight, P2, low
profile, polarised) is provided, with the pin-out shown
in the table on the left. Mating connector: JST p/n
PHDR-34VS with HR SPHD-002T-P0.5 female crimp
terminals.
Display Data Channel signals are also provided, in case that the Qseven
supports them.
Most of the signals available on this connector come out directly from the Qseven
connector; please check the related table for a description of the signals.
eDP0_HPD and eDP1_HPD are derived by the signals available on Qseven
signals eDP0_HPD# and eDP1_HPD#, simply by inverting their polarity.
is the signal used for Backlight enabling, is the logical conjunction
LVDS_BACKLIGHT_EN
(i.e. AND) of the signal LVDS_BLEN# and the signal PLT_RST#.
LVDS_VDD_EN is the signal used for LCD enabling, is the logical conjunction (i.e. AND) of
the signal LVDS_PPEN# and the signal PLT_RST#.
These operations on signals
LVDS_BACKLIGHT_EN
that at each reset of the module, the eventually connected backlight and display will also
turn off themselves.
+3.3V_S power rail available on pins 3 and 4 can be used only for the
connection of an external EDID (max 500mA); it MUST NOT be used to supply
the digital section of the connected LCD.
Use instead the connector CN17 for the power in rails of the connected display.
®
module used
®
connector's
and have been done so
LVDS_VDD_EN
®
®
31