Telit Wireless Solutions GE864 manual 10k

GE864 Hardware User Guide

1vv0300694 Rev.10 - 10/06/08

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):

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This signal is internally pulled up so the pin can be left floating if not used.

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