User's Manual
LE910 V2 HARDWARE USER GUIDE 1VV0301200 Rev.2 Preliminary • 2015-08-04 13 of 81
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3 PINS ALLOCATION
3.1 Pin-out
Pin
Signal
I/O
Function
Type
Comment
USB HS 2.0 COMMUNICATION PORT
B15
USB_D+
I/O
USB differential Data (+)
C15
USB_D-
I/O
USB differential Data (-)
A13
VUSB
I
Power sense for the
internal USB transceiver.
Asynchronous Serial Port (USIF0) - Prog. / Data + HW Flow Control
N15
C103/TXD
I
Serial data input from
DTE
CMOS 1.8V
M15
C104/RXD
O
Serial data output to DTE
CMOS 1.8V
M14
C108/DTR
I
Input for (DTR) from DTE
CMOS 1.8V
L14
C105/RTS
I
Input for Request to send
signal (RTS) from DTE
CMOS 1.8V
P15
C106/CTS
O
Output for Clear to Send
signal (CTS) to DTE
CMOS 1.8V
N14
C109/DCD
O
Output for (DCD) to DTE
CMOS 1.8V
P14
C107/DSR
O
Output for (DSR) to DTE
CMOS 1.8V
R14
C125/RING
O
Output for Ring (RI) to
DTE
CMOS 1.8V
Asynchronous Auxiliary Serial Port (USIF1)
D15
TX_AUX
O
Auxiliary UART (TX Data
to DTE)
CMOS 1.8V
E15
RX_AUX
I
Auxiliary UART (RX Data
from DTE)
CMOS 1.8V
SIM card interface
A6
SIMCLK
O
External SIM signal –
Clock
1.8 / 3V
A7
SIMRST
O
External SIM signal –
Reset
1.8 / 3V