Yuga NB module hardware manual V1.01

LPM2100 mg NB module hardware manual
Shang Hai YUGE Information Technology co., LTD
Page
14
of
39
14
SIM_VDD
PO
Output power supply to
SIM card
Far away from the
source of interference
State indication
16
NETLIGHT
DO
Network status indication
2.8V voltage domain
Main serial port interface
17
RXD
DI
Master data reception
2.8V voltage domain
18
TXD
DO
Master data transmission
2.8V voltage domain
20
RI
DO
Ringing hints
2.8V voltage domain
22
CTS
DO
Scavenging sending
2.8V voltage domain
23
RTS
DI
Request to send
2.8V voltage domain
Debug serial port interface
38
RXD_DBG
DI
Module debug data
receiving
2.8V voltage domain
39
TXD_DBG
DO
Module debug data
transmission
2.8V voltage domain
UART2 serial port
28
UART2_RXD
DI
UART2 data reception
2.8V voltage domain
29
UART2_TXD
DO
UART2 data transmission
2.8V voltage domain
I2C interface
32
SCL
OD
I2C bus clock output
2.8V voltage domain
33
SDA
IO
I2C bus data input and
output
2.8V voltage domain
SPI interface
3
SPI_MISO
DI
Host input and slave
machine output
2.8V voltage domain
4
SPI_MOSI
DO
Host output slave
machine input
2.8V voltage domain
5
SPI_SCLK
DO
Serial clock signal
2.8V voltage domain
6
SPI_CS
DO
Chip Select
2.8V voltage domain
Other functional feet
19
PSM_EINT
DI
External interrupt pin
1.1V voltage domain
9
ADC0
AI
General analog digital
converter interface
Range 0.1V~2.8V
Universal input-output interface
30
GPIO_1
IO
General input / output
port
31
GPIO_2
IO
General input / output
port
Antenna interface
26
BT_ANT
IO
Bluetooth antenna
50Ω characteristic