SBC-C57
SBC-C57 User Manual - Rev. First Edition: 1.0 - Author: S.O. - Reviewed by R.Z. - Copyright © 2021 SECO S.p.A.
27
3.3.6
eDP Connector
As previously stated, SBC-C57 offers in addition to
LVDS interface, as a factory configuration, a dedicated
embedded Display Port interface. Such an interface is
derived from the processor
’
s MIPI-DSI #0 Interface.
When this interface is present and connected, LVDS interface can work only in single channel
mode from
-DSI #1 Interface
For the connection of this kind of displays, on-board there is a VESA
®
certified connectors for
embedded Display Port interface, type STARCONN p/n 300E40-0110RA-G3 or equivalent
(microcoaxial cable connector, 0.5mm pitch, 40 positions).
light:
voltages (VCC_LCD and VCC_BLT) and control signals (BLT_EN and BLT_CTRL) which are
shared with the LVDS connector and will affect the backlight behaviour of the LVDS panel if
present (see par.3.3.4).
Output values of VCC_LCD and VCC_BLT can be configured using jumpers as indicated in
par. 3.3.5.
Here following the signals involved in eDP management:
/eDP_ML0-: embedded DP differential data pair #0.
/eDP_ML1-: embedded DP differential data pair #1.
/eDP_ML2-: embedded DP differential data pair #2.
/eDP_ML3-: embedded DP differential data pair #3.
/eDP_AUX-: embedded DP auxiliary channel differential data pair.
BKLT_EN: LCD_PWR electrical level Output with a 10k
Ω
pull-up resistor, Backlight Enable
signal. It can be used to turn On/Off the backlight
’
s lamps of connected displays.
BKLT_PWM: this signal can be used to adjust the backlight brightness in displays supporting
Pulse Width Modulated (PWM) regulations (LCD_PWR electrical level).
eDP connector CN19
Pin Signal
Pin Signal
1
---
21
VCC_LCD
2
VCC_BLT
22
VCC_LCD
3
VCC_BLT
23
VCC_LCD
4
VCC_BLT
24
GND
5
VCC_BLT
25
eDP_AUX-
6
---
26
7
---
27
GND
8
BLT_CTRL
28
9
BLT_EN
29
eDP_ML0-
10
GND
30
GND
11
GND
31
12
GND
32
eDP_ML1-
13
GND
33
GND
14
eDP_HPD
34
15
GND
35
eDP_ML2-
16
GND
36
GND
17
GND
37
18
GND
38
eDP_ML3-
19
---
39
GND
20
VCC_LCD
40
---
