MeiG_SLM320_Hardware Design Manual
MeiG Smart Technology Co., Ltd
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35
WIFI_ANT(BT_A
NT)
I
WiFi / BT antenna
If not, please suspend
this pin
The module is
internally
connected
with BT_ ANT
36
GND
G
GND
37
SPI_CS_N
O
VOLnom=0V
VOHnom=1.8V
SPI chip selection signal
If not, please suspend
this pin
38
SPI_MOSI
O
VOLnom=0V
VOHnom=1.8V
SPI_MOSI
If not, please suspend
this pin
39
SPI_MISO
I
VILnom=0V
VIHnom=1.8V
SPI_MISO
If not, please suspend
this pin
40
SPI_CLK
O
VOLnom=0V
VOHnom=1.8V
SPI_CLK
If not, please suspend
this pin
41
I2C_SCL
OD
VOLnom=0V
VOHnom=1.8V
I2C interface clock signal
If not, please suspend
this pin
42
I2C_SDA
BOT 0V/1.8V
I2C interface data signal
If not, please suspend
this pin
43
ADC2*
AI
ADC interface 2
When in use, 1K in
series,
If not, please suspend
this pin
44
ADC1
AI
ADC interface 1
When in use, 1K in
series,
If not, please suspend
this pin
45
ADC0
AI
ADC interface 0
When in use, 1K in
series,
If not, please suspend
this pin
46
GND
G
GND
47
ANT_GNSS
GPS antenna
If not, please suspend
this pin
48
GND
G
GND
49
ANT_MAIN
I/O
Main collector antenna