Specifications

WM_PRJ_Q2400_PTS_002 - 002
24th January 2003
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2.16.1 Reset sequence
To activate the « emergency » reset sequence, the ~RST signal has to be set to
low for 500
µ
s minimum. As soon as the reset is complete, the AT interface
answers « OK » to the application
4
.
RESET mode
I
BB+RF
=20 to
40mA
EXTERNAL RST
STATE OF THE MODULE
Module READY
Min:500
µ
s
Typ:2ms
AT answers “OK”
Module READY
SIM and network dependent
Module ON
I
BB+RF
<120mA
without loc update
Figure 14 : Reset sequence
2.17 External Interrupt (~INTR)
The WISMO Quik Q24x6 Series provides an external interrupt input (not
managed in the standard AT commands firmware). This input is very sensitive
and an interrupt is activated on high to low edge. If this signal is not used it
can be left open. If used this input has to be driven by an open collector or an
open drain.
This input is used for instance to power OFF automatically the module.
Pin description
Signal Pin number I/O I/O type Description
~INTR 16 I CMOS External Interrupt
Electrical characteristics
Parameter Min Max Unit
V
IL
-0.5V 0.7V Volt
V
IH
2.2V 3.0V Volt
4
For this, the application has to send AT↵. If the application manages hardware flow control, the
AT command can be sent during the initialisation phase. Another solution is to use the +WIND
command to get an unsollicited status from the module.