Fibocom MG661-EU - Page 22

2 Pin Definition
19
Pin
No.
Pin Name
I/O
RESET
VALUE
Power
Domain
Description
21
MAIN_DCD
DO
PD
1.8V
Carrier detection
19
MAIN_DTR
DI
PD
1.8V
Data ready
18
MAIN_TXD
DO
PU
1.8V
Main serial port UART1 data
transmitting
17
MAIN_RXD
DI
PU
1.8V
Main serial port UART1 data
receiving
29
AUX_TXD
DO
PD
1.8V
UART1 data transmitting
28
AUX_RXD
DI
PD
1.8V
UART6 data receiving
Table 17. ADC interface
Pin No.
Pin Name
I/O
Power
Domain
Description
9
ADC0
AI
VBAT
Analog-to-digital conversion 0
96
ADC1
AI
VBAT
Analog-to-digital conversion 1
Table 18. CAM interface
Pin
No.
Pin Name
I/O
RESET
VALUE
Power
Domain
Description
54
CAM_MCLK
DO
PD
1.8V
CAMERA clock signal
57
CAM_I2C1_SCL
OD
PU
1.8V
CAMERA I2C clock signal, internal
software pull-up, external 1.8V
hardware pull-up can be reserved,
can be suspended when not in use
58
CAM_I2C1_SDA
OD
PU
1.8V
CAMERA I2C data signal, internal
software pull-up, external 1.8V