Product Info

Smart LTE Module Series
SC20 Hardware Design
SC20_Hardware_Design 56 / 130
3.18. LCM Interface
SC20 module provides an LCM interface meeting MIPI DSI specification. The interface supports high
speed differential data transmission, with up to four lanes and a transmission rate up to 1.5Gbps per lane.
It supports maximally 720P resolution displays.
Table 21: Pin Definition of LCM Interface
Pin Name
Pin No
I/O
Description
Comment
LDO6_1V8
125
PO
1.8V output power supply for
LCM logic circuit and DSI
1.8V normal voltage.
Vnorm=1.8V
I
O
max=100mA
LDO17_2V85
129
PO
2.85V output power supply for
LCM analog circuits
2.85V normal voltage.
Vnorm=2.85V
I
O
max=300mA
PWM
29
DO
Adjust the backlight brightness.
PWM control signal.
LCD_RST
49
DO
LCD reset signal
Active low
LCD_TE
50
DI
LCD tearing effect signal
MIPI_DSI_CLKN
52
AO
MIPI DSI clock signal
(negative)
MIPI_DSI_CLKP
53
AO
MIPI DSI clock signal
(positive)
MIPI_DSI_LN0N
54
AO
MIPI DSI data signal
(negative)
MIPI_DSI_LN0P
55
AO
MIPI DSI data signal
(positive)
MIPI_DSI_LN1N
56
AO
MIPI DSI data signal
(negative)
MIPI_DSI_LN1P
57
AO
MIPI DSI data signal
(positive)
MIPI_DSI_LN2N
58
AO
MIPI DSI data signal
(negative)
MIPI_DSI_LN2P
59
AO
MIPI DSI data signal
(positive)
MIPI_DSI_LN3N
60
AO
MIPI DSI data signal
(negative)
MIPI_DSI_LN3P
61
AO
MIPI DSI data signal
(positive)