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 21 of 89
Ball Signal I/O Function
Internal
Pull up
Type
G11
USB_SIM_D-
(TBD)
I/O USB SIM data (-), TBD 1.8V/3.0V
Trace
N4 TX_TRACE O Tx data for diagnostic monitor CMOS 1.8V
N3 RX_TRACE I Rx data for diagnostic monitor CMOS 1.8V
Prog. / Data + HW Flow Control
M4
C125/RING
(TBD)
O
Output for Ring indicator
signal (RI) to DTE
CMOS 1.8V
M3
C109/DCD
(TBD)
O
Output for Data set ready
signal (DSR) to DTE
CMOS 1.8V
L3
C108/DTR
(TBD)
I
Input for Data terminal ready
signal (DTR) from DTE
CMOS 1.8V
L4
C107/DSR
(TBD)
O
Output for Data set ready
signal (DSR) to DTE
CMOS 1.8V
K4 C106/CTS O
Output for Clear to send signal
(CTS) to DTE
CMOS 1.8V
K3 C105/RTS I
Input for Request to send
signal (RTS) from DTE
CMOS 1.8V
J4 C104/RXD O Serial data output to DTE CMOS 1.8V
J3 C103/TXD I
Serial data input (TXD) from
DTE
CMOS 1.8V
USB
S8 USB_VBUS
Power supply for the internal
USB transceiver
5V
S9 USB_ID(TBD) AI
Analog input used to sense
whether a peripheral device is
connected.
Analog
R9 USB_D+ I/O USB differential Data (+) 3.3V
R8 USB_D- I/O USB differential Data (-) 3.3V
DAC and ADC
S4 DAC_OUT AO Digital/Analog converter output Analog
S5 ADC_IN3 AI
Analog/Digital converter input
3/GPS ANT current detection
Analog