User's Guide

HE863 Family Hardware User Guide
1vv0300891 Rev.5
- 2011-03-18
Reproduction forbidden without Telit Communications S.p.A’s. written authorization - All Rights
Reserved. Page 27 of 89
Ball Signal I/O Function
Internal
Pull up
Type
2/GPS ANT voltage detection
R4 ADC_IN1 AI
Analog/Digital converter input
1/GPS ANT voltage detection
Analog
Miscellaneous Functions
G5 RESET* I Reset input Pull up 2.3V
C9 VRTC_2V3 AO VRTC Backup capacitor Power
B11 STAT_LED O Status indicator LED CMOS 1.8V
G4 ON_OFF* I
Input command for switching
power ON or OFF (toggle
command)
Pull up 2.3V
D10 PWRMON O Power ON Monitor CMOS 1.8V
A3 RF_ANT - Antenna for GSM/WCDMA – 50 ohm RF
S1 GPS_ANT -
Antenna for GPS – 50 ohm
GPS_ANT for HE863-EUG/NAG/AUG
only
RF
P7
MODEM_RDY
(TBD)
O
Indicates that the boot
sequence completed successfully
CMOS 1.8V
R6 WAKEUP(TBD) O
Wake u
p
signal to external host
system
CMOS 1.8V
P6 SLEEP(TBD) I Input for entering sleep mode CMOS 1.8V
S6
CALL_KEY(TBD
)
I
Input for make/answer a call
(toggle command)
CMOS 1.8V
N5
AXE
(TBD)
I Input for handsfree switching CMOS 1.8V
G6
EMG_PWR_OFF
(TBD)
I Input for emergency power off Pull up CMOS 1.8V
N8 MODE1(TBD) Mode select 1(TBD)
N9 MODE2(TBD) Mode select 2(TBD)
SPI(TBD)
6 pins for SPI
(F4,D4,F5,E4,D5,C11)
E5 VAUX1 -
Power output for external
accessories
Power
GPIO