Telit GE864 and GC864
Product Description
80273ST10008A Rev. 3 - 10/02/06
Reproduction forbidden without DAI Telecom written authorization – All Right reserved – Right of modification reserved
page 18 of 72
digital pin when on
Input voltage on
analog pins when on
-0.3V +3.0
V
Operating Range - Interface levels (2.8V CMOS)
Level Min
Max
Input high level
2.1V
3.3V
Input low level
0V
0.5V
Output high level
2.2V
3.0V
Output low level
0V
0.35V
For 2,0V signals:
Operating Range - Interface levels (2.0V CMOS)
Level Min
Max
Input high level
1.6V
3.3V
Input low level
0V
0.4V
Output high level
1,65V
2.2V
Output low level
0V
0.35V
2.13.1
Reset signal
Signal
Function
I/O
GE864 ball GC864 pin
RESET Phone
reset I/O
A2
54
RESET is used to reset the
GE864
and
GC864
. Whenever this signal is pulled low, the
GE864 / GC864
is reset. When the device is reset it stops any operation and after the release of the reset it shuts
down, without doing any detach operation from the network where it is registered to. This behavior
is not a proper shut down because any GSM device is requested to issue a detach request on turn
off. For this reason the Reset signal must not be used to normally shutting down the device, but
only as an emergency exit in the rare case the device remains stuck waiting for some network
response.
The RESET is internally controlled on start-up to achieve always a proper power-on reset
sequence, so there's no need to control this pin on start-up. It may only be used to reset a device
already on that is not responding to any command.
NOTE: do not use this signal to power off the
Telit GE864 / GC864 module
.
Use the ON_OFF* signal to perform this function or the AT#SHDN command.
