GE864-QUAD V2 Hardware User Guide
1vv0300841 Rev.5
–
2017-05-11
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights
Reserved.
Page 26 of 77
Do not use any pull up resistor on the RESET# line or any
totem pole digital output. Using pull up resistor may bring to
latch up problems on the module power regulator and improper
functioning of the module. The line RESET# must be connected
only in open collector configuration.
TIP:
The unconditional hardware Restart must always be implemented
on the boards and must be used by the software as an emergency
exit procedure.
The following flow chart shows the proper RESET procedure:
NOTE:
In order to avoid a back powering effect it is recommended to
avoid having any HIGH logic level signal applied to the
digital pins of the module when is powered OFF or during an
ON/OFF transition.
