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GE864 Hardware User Guide
1vv0300694 Rev.10 - 10/06/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 18 of 69
NOTE: don’t use any pull up resistor on the RESET# line nor any totem pole digital output. Using pull up resistor
may bring to latch up problems on the GE864-QUAD / PY power regulator and improper functioning of the module.
The line RESET# must be connected only in open collector configuration.
TIP: The unconditional hardware Restart should be always implemented on the boards and software should use it
as an emergency exit procedure.
For example:
Let’s assume you need to drive the RESET# pad with a totem pole output of a +3/5 V microcontroller
(uP_OUT2):
This signal is internally pulled up so the pin can be left floating if not used.
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