W_Disable - SimCom SIM7200 Hardware Manual

4.8 W_DISABLE#

The W_DISABLE# pin controls SIM7200 to enter or exit the airplane mode, when the W_DISABLE# signal is
asserted, all radios would be disabled. When the W_DISABLE# signal is not asserted, the radio may transmit if it
was not disabled by other means such as software.
The W_DISABLE# is an active low signal and has been pulled up inside the module, the combination of the
W_DISABLE# and the software configuration can set SIM7200 to airplane mode or normal operation mode.
Table 15: Airplane mode control Function
W_DISABLE# status
High Level
High Level
Low Level
Low Level
Table 16: W_DISABLE# Electrical Characteristic
Symbol Parameter
V High-level input voltage
IH
V Low-level input voltage
IL
SIM7200-PCIe_ Hardware_Design _V1.01
SIM7200
PERST#
PMIC
Figure 19: Recommend circuit of PERST#
AT+CFUN=<fun>
1
0
1
0
Min
1.2
-
Smart Machine Smart Decision
VCC
4.7K
GPIO from host
47K
Module operation
Normal Mode: RF is working.
Airplane mode: RF is closed.
Type
1.8
-
28
Max Unit
2.1 V
0.45 V
2016-05-19