Cavli Wireless C100QM/C10QM Hardware Manual
47
Figure 3-17 Hot swap detection of the USIM card
✧
It is recommended to add a diode protection next to the UIM _DET pin of the module.
✧
When using a normally closed SIM card holder or a normally open SIM card holder,
the detection function can be set by the AT command. If AT+HOSCFG=1 is set, the
status of the SIM card is high when the SIM card is in position, and AT+HOSCFG=1 is
set. When the SIM card is in the state, the status is low. Set AT+HOSCFG=0.0 The
SIM card hot swap function is disabled.
3.8 General purpose GPIO interface
The C100QM/C10QM module contains five general control signals. The interface is
defined as follows:
Table 3-13 General GPIO Pin Definitions
NO.
Signal
name
I/O
descriptio
n
paramet
er
Level value (V)
remarks
MIN Typica
l
MAX
1
WAKEUP
_IN
DI
Sleep
mode
control
VIH
1.2
1.8
2
VIL
-0.3
0.6
2
AP_READ
Y
DI
Sleep
state
VIH
1.2
1.8
2
This feature
is under
VIL
-0.3
0.6