Hardware Guide
Table Of Contents
- Introduction
- 2. Overview
- 3. GE865 Mechanical Dimensions
- 4. GE865 module connections
- 5. Hardware Commands
- 6. Power Supply
- 7. Antenna
- 8. Logic level specifications
- 9. Serial Ports
- 10. Audio Section Overview
- 11. General Purpose I/O
- 11.1. GPIO Logic levels
- 11.2. Using a GPIO Pad as INPUT
- 11.3. Using a GPIO Pad as OUTPUT
- 11.4. Using the RF Transmission Control GPIO4
- 11.5. Using the RFTXMON Output GPIO5
- 11.6. Using the Alarm Output GPIO6
- 11.7. Using the Buzzer Output GPIO7
- 11.8. Indication of network service availability
- 11.9. RTC Bypass out
- 11.10. External SIM Holder Implementation
- 12. DAC and ADC section
- 13. Mounting the GE865 on your Board
- 14. Packing system
- 15. Conformity Assessment Issues
- 17. Document History
GE865 Hardware User Guide
1vv0300799 Rev.15– 2012-04-23
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 12 of 77
4. GE865 module connections
4.1. PIN-OUT
Ball Signal I/O Function Note Type
Audio
E8
EAR- AO Earphone signal output, phase - Audio
D8
EAR+ AO Earphone signal output, phase + Audio
B8
MIC+ AI Mic.signal input; phase+ Audio
C8
MIC- AI Mic.signal input; phase- Audio
SIM card interface
A5
SIMCLK O External SIM signal – Clock 1,8 / 3V
A8
SIMRST O External SIM signal – Reset 1,8 / 3V
A6
SIMIO I/O External SIM signal – Data I/O 4.7K Pull up 1,8 / 3V
B7
SIMIN I External SIM signal – Presence (active low) 1,8 / 3V
A7
SIMVCC - External SIM signal – Power supply for the SIM 1,8 / 3V
Trace
D1
TX_AUX O Auxiliary UART (TX Data to DTE)
CMOS 2.8V
E1
RX_AUX I Auxiliary UART (RX Data from DTE) CMOS 2.8V
Prog. / Data + HW Flow Control
A3
C103/TXD I Serial data input (TXD) from DTE CMOS 2.8V
A4
C104/RXD O Serial data output to DTE CMOS 2.8V
B3
C108/DTR I
Input for Data terminal ready signal (DTR) from
DTE
CMOS 2.8V
A1
C105/RTS I Input for Request to send signal (RTS) from DTE CMOS 2.8V
A2
C106/CTS O Output for Clear to send signal (CTS) to DTE CMOS 2.8V
B5
C109/DCD O Output for Data carrier detect signal (DCD) to DTE CMOS 2.8V
B2
C107/DSR O Output for Data set ready signal (DSR) to DTE CMOS 2.8V
B4
C125/RING O Output for Ring indicator signal (RI) to DTE CMOS 2.8V
DAC and ADC
G7
DAC_OUT AO Digital/Analog converter output D/A
F5
ADC_IN1 AI Analog/Digital converter input A/D
F6
ADC_IN2 AI Analog/Digital converter input A/D
Miscellaneous Functions
C1
RESET* I Reset input Internal pull-up
H2
VRTC AI/O VRTC Backup capacitor Power
G8
STAT_LED O Status indicator led CMOS 1.8V
B1
ON_OFF* I
Input command for switching power ON or OFF
(toggle command).
47K Pull Up Pull up to VRTC
E2
PWRMON O Power ON Monitor CMOS 2.8V
H5
Antenna O Antenna output – 50 Ω RF
H1
Service I
Service pin can be used to upgrade the
module from ASC1 as a alternative to default
upgrading procedure using ASC0
Any pull-up/down
are required
CMOS 2.8V