Edp Connectors - Seco Smarc CSM-B79 User Manual

3.3.3 eDP connectors

eDP #0 connector
Pin Signal Pin Signal
1 --- 21
2 VDD_BKLT0 22
3 VDD_BKLT0 23
4 VDD_BKLT0 24
5 VDD_BKLT0 25
6 --- 26
7 --- 27
8 LCD0_BKLT_PWM_3.3V 28
9 LCD0_BKLT_EN_3.3V 29
10 GND 30
11 GND 31
12 GND 32
13 GND 33
14 eDP0_HPD_3.3V 34
15 GND 35
16 GND 36
17 GND 37
18 GND 38
19 --- 39
20 VDD_LCD0 40
Here following the signals involved in eDP channel#0 management:
eDP0_TX[0..3]+ / eDP0_TX[0..3]-: SMARC
eDP0_AUX+ / eDP0_AUX-: SMARC
CSM-B79
CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
CN60 eDP #1 connector
Pin
VDD_LCD0 1 ---
VDD_LCD0 2 VDD_BKLT1
VDD_LCD0 3 VDD_BKLT1
GND 4 VDD_BKLT1
eDP0_AUX- 5 VDD_BKLT1
eDP0_AUX+ 6 ---
GND 7 ---
eDP0_TX0+ 8 LCD1_BKLT_PWM_3.3V
eDP0_TX0- 9 LCD1_BKLT_EN_3.3V
GND 10 GND
eDP0_TX1+ 11 GND
eDP0_TX1- 12 GND
GND 13 GND
eDP0_TX2+ 14 eDP1_HPD_3.3V
eDP0_TX2- 15 GND
GND 16 GND
eDP0_TX3+ 17 GND
eDP0_TX3- 18 GND
GND 19 ---
--- 20 VDD_LCD1
®
module embedded DP channel#0 differential data pairs
®
module embedded DP channel#0 auxiliary channel differential data pair.
CN61
Signal Pin Signal
21 VDD_LCD1
22 VDD_LCD1
23 VDD_LCD1
24 GND
25 eDP1_AUX-
26 eDP1_AUX+
27 GND
28 eDP1_TX0+
29 eDP1_TX0-
30 GND
31 eDP1_TX1+
32 eDP1_TX1-
33 GND
34 eDP1_TX2+
35 eDP1_TX2-
36 GND
37 eDP1_TX3+
38 eDP1_TX3-
39 GND
40 ---
®
According to SMARC Rel. 2.1.1 specification,
the other support on primary display interface
from card edge connector, on same pins that can
be used for LVDS / MIPI-DSI (par.3.3.2), is the
connection of up to two Embedded Display
Ports.
For the connection of this kind of displays, on-
®
board there are two VESA certified connectors
C60 and CN61 for embedded Display Port
interface, type STARCONN p/n
0110RA-G3 or equivalent (microcoaxial cable
connector, 0.5mm pitch, 40 positions).
On these connectors, VDD_LCD0 / VDD_LCD1
and VDD_BKLT0 / VDD_BKLT1 are the voltage
rails that can be used to supply each Backlight
Unit and related LCD.
Their value can be set using dedicated jumpers
CN18, CN19, CN20, CN21 (par.3.3.2).
300E40-
39