User's Manual
Table Of Contents
- 1 Overview
- 2 GE864-QUAD Automotive V2 Mechanical Dimensions
- 3 GE864-QUAD Automotive V2 module connections
- 4 Hardware Commands
- 5 Power Supply
- 6 Antenna
- 7 Logic level specifications
- 8 Serial Ports
- 9 Audio Section Overview
- 10 General Purpose I/O
- 10.1 GPIO Logic levels
- 10.2 Using a GPIO Pad as INPUT
- 10.3 Using a GPIO Pad as OUTPUT
- 10.4 Using the RF Transmission Control GPIO4
- 10.5 Using the RFTXMON Output GPIO5
- 10.6 Using the Alarm Output GPIO6
- 10.7 Using the Buzzer Output GPIO7
- 10.8 Indication of network service availability
- 10.9 RTC Bypass out
- 10.10 External SIM Holder Implementation
- 11 DAC and ADC section
- 12 Conformity Assessment Issues
- 14 Document Change Log
GE864-QUAD Automotive V2 Hardware User Guide
1vv0300840 Rev.0.1 24/11/09
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 18 of 65
4.2.2 Hardware Unconditional Restart
To unconditionally Restart the GE864-QUAD Automotive V2, the pad RESET* must be tied low for at
least 200 milliseconds and then released.A simple circuit to do it is:
The following flow chart shows the proper Reset procedure:
RESET*
Unconditional Restart
impulse
GND