Reset Signal (~Rst); General Presentation; Figure 9: Reset Application Schematic; This Document Is The Sole And Exclusive Property Of Wavecom. Not To Be Distributed Or Divulged Without Prior Written - Wavecom Integra M2106+ Product Specification

3.5

Reset Signal (~RST)

3.5.1

General Presentation

This signal is used to force a reset procedure by providing a low level for at least 500 µs.
This signal must be considered as an emergency reset only. A reset procedure is automatically driven by an
internal hardware component during the power-up sequence.
Signal
~RST
This signal can also be used as an output to provide a reset to an external device. If no external reset is
necessary, this input can be left open. If it is used (emergency reset), it must be driven either by an open
collector or an open drain output:
Switch RESET
• ~RST pin 19 = 0, to activate Reset,
• ~RST pin 19 = 1, to deactivate Reset.
Parameter
Input Impedance (R)
Input Impedance (C)
Parameter
*V
T-
*V
T+
V
OL
V
OH
* VT-, VT+: Hysteresis thresholds
• Additional comments on Reset procedure:
©Confidential

This document is the sole and exclusive property of Wavecom. Not to be distributed or divulged without prior written

agreement.

WA_DEV_M2106+_PTS_003-001
Pin description
Pin # I/O Reset state
19 I/O --
RESET pin

Figure 9: Reset application schematic

Reset signal electrical characteristics
Reset signal operating conditions
Min
1.1 V
1.7 V
2.0 V
I/O type
SCHMITT
Switch RESET
OR
Min Max
4.7
10
Max Condition
1.2 V
1.9 V
0.4 V I
OL
I
OH
Integra M2106+
Erreur ! Style non défini.
Description
Reset
RESET pin
Unit
kΩ
nF
= -50 µA
= 50 µA
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April, 2007