MeiG Smart product technical information
SLM500
Hardware Design Guide
Page 37
Figure 4.15
：
RX Connection Diagram
Note
：
When using Levels Isolation in Figures 14 and 15, Attention should be paid to
LDO6_1P8 output timing, the serial port can communicate normally after the normal output.
Table 4.4
：
Serial Port Hardware Parameters
Description
Minimum
Maximum
Unit
Input low level
-
0.63
V
Input high level
1.17
-
V
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 SLM500 supports the Moble Industry Processor Interface (MIPI) interface for Camera
and LCD. The module supports
HD+(1440*720 )
display. The MIPI interface Main Camera
supports up to 13MP, and the Front Camera supports 5MP
.
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.
module
