User's Manual

LE910 Hardware User Guide
1vv0301089 Rev.7 25-10-2015
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 12 of 88
3 LE910 module connections
3.1 PIN-OUT
Signal
I/O
Function
Type
COMMENT
USB HS 2.0 COMMUNICATION PORT
USB_D+
I/O
USB differential Data (+)
USB_D-
I/O
USB differential Data (-)
VUSB
I
Power sense for the internal USB
transceiver.
Asynchronous Serial Port (USIF0) Prog. / Data + HW Flow Control
C103/TXD
I
Serial data input from DTE
CMOS 1.8V
C104/RXD
O
Serial data output to DTE
CMOS 1.8V
C108/DTR
I
Input for (DTR) from DTE
CMOS 1.8V
C105/RTS
I
Input for Request to send signal
(RTS) from DTE
CMOS 1.8V
C106/CTS
O
Output for Clear to Send signal
(CTS) to DTE
CMOS 1.8V
C109/DCD
O
Output for (DCD) to DTE
CMOS 1.8V
C107/DSR
O
Output for (DSR) to DTE
CMOS 1.8V
C125/RING
O
Output for Ring (RI) to DTE
CMOS 1.8V
Asynchronous Auxiliary Serial Port (USIF1)
TX_AUX
O
Auxiliary UART (TX Data to DTE)
CMOS 1.8V
RX_AUX
I
Auxiliary UART (RX Data from
DTE)
CMOS 1.8V
SIM card interface
SIMCLK
O
External SIM signal Clock
1.8 / 3V
SIMRST
O
External SIM signal Reset
1.8 / 3V
SIMIO
I/O
External SIM signal Data I/O
1.8 / 3V
SIMIN
I
External SIM signal Presence
(active low)
CMOS 1.8
SIMVCC
-
External SIM signal Power supply
for the SIM
1.8 / 3V
Digital Voice Interface (DVI)
DVI_WA0
I/O
Digital Audio Interface (WA0)
1.8V
DVI_RX
I
Digital Audio Interface (RX)
1.8V
DVI_TX
I/O
Digital Audio Interface (TX)
1.8V
DVI_CLK
I/O
Digital Audio Interface (CLK)
1.8V
Peripheral Interface (SDIO Wi-Fi)
WiFi_SD_CMD
O
Wi-Fi SD Command
1.8V
WiFi_SD_CLK
O
Wi-Fi SD Clock
1.8V
WiFi_SD0
I/O
Wi-Fi SD Serial Data 0
1.8V
WiFi_SD1
I/O
Wi-Fi SD Serial Data 1
1.8V