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eDP Connector
eDP connector
Pin
Signal
Pin
1
N.C.
21
2
VDD_BKLT
22
3
VDD_BKLT
23
4
VDD_BKLT
24
5
VDD_BKLT
25
6
N.C.
26
7
N.C.
27
8
LCD_BKLT_CTRL
28
9
LCD_BKLT_EN
29
10
GND
30
11
GND
31
12
GND
32
13
GND
33
14
eDP_HPD
34
15
GND
35
16
GND
36
17
GND
37
18
GND
38
19
N.C.
39
20
VDD_LVDS
40
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.
CN42
The CCOMe-C96 carrier board is also able to manage eDP Displays.
For the connection of this kind of displays, on-board there is a VESA
Signal
certified connectors for embedded Display Port interface, type
VDD_LCD
STARCONN p/n 300E40-0110RA-G3 or equivalent (microcoaxial
cable connector, 0.5mm pitch, 40 positions).
VDD_LCD
On this connector, VDD_BKLT and VDD_LCD are the voltage rails that can be used to supply
VDD_LCD
the Backlight Unit and related LCD.
GND
The eDP Interface is derived by placing an high-speed differential switch on shared
eDP_AUX-
LVDS/eDP interface coming from COM Express Connector. It is the same switch that makes
eDP_AUX+
available the LVDS interface on LVDS connector (please check par. 3.3.18).
GND
The switching between eDP interface and LVDS is controlled via a jumper JP11, according to
the table below.
eDP_TX0+
eDP_TX0-
Here following the signals involved in eDP management:
GND
eDP_TX0+/eDP_TX0-: embedded DP differential data pair #0.
eDP_TX1+
eDP_TX1+/eDP_TX1-: embedded DP differential data pair #1.
eDP_TX1-
eDP_TX2+/eDP_TX2-: embedded DP differential data pair #2.
GND
eDP_TX3+/eDP_TX3-: embedded DP differential data pair #3.
eDP_TX2+
eDP_AUX+/eDP_AUX-: embedded DP auxiliary channel differential data pair.
eDP_TX2-
eDP_HPD: embedded DP Hot Plug Detect. Active high signal, +3.3V_RUN electrical level
GND
LCD_BKLT_EN: eDP Panel's Backlight Enable Signal. +3.3V_RUN electrical level Output.
eDP_TX3+
LCD_BKLT_CTRL: eDP Panel Backlight Brightness Control, PWM signal.
eDP_TX3-
GND
---
JP11 position
eDP/LVDS selector
Inserted
eDP enabled
Not inserted
LVDS enabled
®
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