User's Manual

LTE Module Series
BG96 Hardware Design
BG96_Hardware_Design Confidential / Released 22 / 71
USIM_
PRESENCE
42
DI
(U)SIM card
insertion
detection
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power domain.
If unused, keep it open.
UART1 Interface
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
RI
39
DO
Ring indicator
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
If unused, keep it open.
DCD
38
DO
Data carrier
detection
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
If unused, keep it open.
RTS
37
DI
Request to
send
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power domain.
If unused, keep it open.
CTS
36
DO
Clear to send
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
If unused, keep it open.
TXD
35
DO
Transmit data
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
If unused, keep it open.
RXD
34
DI
Receive data
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power domain.
If unused, keep it open.
DTR
30
DI
Data terminal
ready. Sleep
mode control.
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power domain.
Pull-up by default. Low
level wakes up the
module.
If unused, keep it open.
UART2 Interface
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
DBG_TXD
23
DO
Transmit data
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
If unused, keep it open.
DBG_RXD
22
DI
Receive data
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power domain.
If unused, keep it open.
UART3/SPI* Interface
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment