User's Guide
LE866 HARDWARE USER GUIDE 1vv0301210 Rev.0 – Preliminary • 2015-09-02 12 of 68
Reproduction forbidden without Telit Communications PLC written authorization – All Rights Reserved
3 PINS ALLOCATION
Pin-out
Pin
Signal
I/O
Function
Type
Comment
USB HS 2.0 COMMUNICATION PORT
E5
USB_D+
I/O
USB differential Data (+)
-
E6
USB_D-
I/O
USB differential Data (-)
-
Asynchronous Serial Port (USIF0) - Prog. / Data + HW Flow Control
A4
C103/TXD
I
Serial data input (TXD) from DTE
CMOS 1.8V
A5
C104/RXD
O
Serial data output to DTE
CMOS 1.8V
A2
C108/DTR
GPI_E
I
Input for (DTR) from DTE
Alternate Function: GPIO
CMOS 1.8V
A1
C105/RTS
GPI_F
I
Input for Request to send signal (RTS) from DTE
Alternate Function: GPIO
CMOS 1.8V
B1
C106/CTS
GPO_D
O
Output for Clear to send signal (CTS) to DTE
Alternate Function: GPIO
CMOS 1.8V
B2
C109/DCD
GPO_A
O
Output for (DCD) to DTE
Alternate function: GPIO
CMOS 1.8V
A3
C107/DSR
GPO_C
O
Output for (DSR) to DTE
Alternate function: GPIO
CMOS 1.8V
B3
C125/RING
GPO_B
O
Output for Ring (RI) to DTE
Alternate Function: GPIO
CMOS 1.8V
Asynchronous Auxiliary Serial Port (USIF1)
C1
TX_AUX
O
Auxiliary UART (TX Data to DTE)
CMOS 1.8V
C2
RX_AU
I
Auxiliary UART (RX Data from DTE)
CMOS 1.8V
SIM card interface
C7
SIMVCC
-
External SIM signal – Power supply for the SIM
1.8V Only
B7
SIMRST
O
External SIM signal – Reset
CMOS 1.8
A7
SIMCLK
O
External SIM signal – Clock
CMOS 1.8
A6
SIMIO
I/O
External SIM signal – Data I/O
CMOS 1.8
X
SIMIN
I
Presence SIM input
CMOS 1.8
See next chapters
DIGITAL IO
C5
GPIO_01
DVI_WA0
SIM_IN
I/O
INT
Main Function: GPIO01 Configurable GPIO
Alternate function 1: Digital Audio Interface (WA0)
Alternate Function 2: SIM_IN
CMOS 1.8V
C6
GPIO_02
DVI_RX
JDR
SIM_IN
I/O
INT
Main Function: GPIO02 Configurable GPIO
Alternate Function 1: Digital Audio Interface (RX)
Alternate Function 2: SIM_IN
CMOS 1.8V