Lierda NB05-01, Руководство пользователя, Страница: 7 / 17

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SWD Interface
SWD_IO 36
IO Serial line
data signal
VOLmax=0.4V
VOHmin=2.4V
VILmin=-0.3V
VILmax=0.6V
VIHmin=2.1V
VIHmax=3.3V This interface is
designed to firmware
programming. Using
this interface to
program firmware will
reset the IEMI No. It
requires UART
Update Program to
protect IMEI No.
during program/
Update.
SWD_CLK 37 DI Serial line
clock signal
VOLmax=0.4V
VOHmin=2.4V
Reset Pin
RESET 22
DI Reset the
module
RPU ≈ 78k Ω
VIHmax=3.3V
VIHmin=2.1V
VILmax=0.6V
Internal Up-adjust ， low
voltage when active.
Simulate I/O Interface
RIO<1>
9 AIO Simulation Not Active yet. Keep
clear.
AIO<0> 32 AIO Simulation Not Active yet. Keep
clear.
Network status indicate port
NETLIGHT 27
DO Network
status
indicator VOLmax=0.4V
VOHmin=2.4V Not Active yet. Keep
clear.
ADC Interface
ADC 33
AI General
Simulation-Di
gital Signal
transform
Not Active yet. Keep
clear.
Main UART Communication Interface
RXD 23
DI Receive data. VILmax=0.6V
VIHmin=2.1V
VIHmax=3.3V Keep Voltage under
3.0V, If not Active yet.
Keep clear.
TXD 24 DO Send data. VOLmax=0.4V
VOHmin=2.4V Keep Voltage under
3.0V, If not Active yet.
Keep clear.
RI 34 DO Signal
Indicate VOLmax=0.4V
VOHmin=2.4V Keep Voltage under
3.0V, If not Active yet.
Keep clear.
Emulation Port
DBG_RXD 25
DI Receive data. VILmax=0.6V
VIHmin=2.1V If not Active yet. Keep
clear.
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