MeiG_SLM550_Hardware Design Manual
MeiG Smart Technology Co., Ltd
4
6
/8
9
Input low level
-
0.45
V
Input high level
1.35
-
V
Note:
1. The serial port of the module is a CMOS interface, and the RS232 signal cannot be directly
connected. If necessary, please use the RS232 conversion chip.
2. If the 1.8V output of the module cannot meet the high level range of the user terminal, please add a
level shifting circuit.
4.6 MIPI Interface
The SLM550 supports the Mobile Industry Processor Interface (MIPI) interface for Camera and LCD.
The module supports HD+ (1440*720) display. The MIPI interface Main Camera supports up to 25MP,
and the Front Camera supports 13MP.
MIPI is a high-speed signal line. In the Layout stage, please follow the impedance and length
requirements strictly, and control the length of the differential pair within the group and the group length.
The total length should be as short as possible.
4.6.1 LCD Interface
The SLM550 module Support 1 set of MIPI interface for LCD display, and has a compatible screen
identification signal. The resolution of the screen can be up to 1680*720. The signal interface is shown
in the following table. In the Layout, the MIPI signal line should strictly control the differential 100 ohm
impedance and the equal length between the signal line group and the group.
The module's MIPI interface is a 1.2V power domain. When the user needs a compatible screen
design, the module's LCD_ID pin or ADC pin can be used. At the same time, the module can provide
2.8V power to the LCD. The LCD interface is as follows:
Table 8 Screen interface definition
Main screen interface
MIPI_DSI0_CLK_M
52
O
MIPI_LCD clock line
MIPI_DSI0_CLK_P
53
O
MIPI_DSI0_LANE0_M
54
I/O
MIPI_LCD data line
MIPI_DSI0_LANE0_P
55
I/O
MIPI_DSI0_LANE1_M
56
I/O
MIPI_DSI0_LANE1_P
57
I/O
