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LE910Cx HW User Guide
1VV0301298 Rev. 33
Page 23 of 128
2021-06-29
Not Subject to NDA
3.
MODULE CONNECTIONS
Pin-out
PAD
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
USB_VBUS
AI
Power sense for the internal USB
transceiver
Power
A14
USB_ID
AI
USB ID
See note below
Asynchronous UART
N15
C103/TXD
I
Serial data input (TXD) from DTE
1.8V
M15
C104/RXD
O
Serial data output to DTE
1.8V
L14
C105/RTS
I
Input for Request to send signal
(RTS) from DTE
1.8V
P15
C106/CTS
O
Output for Clear to send signal
(CTS) to DTE
1.8V
P14
C107/DSR
O
Output for Data Set Ready (DSR) to
DTE
1.8V
Alternate Fn
GPIO_32
M14
C108/DTR
I
Input for Data Terminal Ready
(DTR) from DTE
1.8V
Alternate Fn
GPIO_34
N14
C109/DCD
O
Output for Data Carrier Detect
(DCD) to DTE
1.8V
Alternate Fn
GPIO_33
R14
C125/RING
O
Output for Ring Indication (RI) to
DTE
1.8V
Alternate Fn
GPIO_31
SPI – Serial Peripheral Interface / AUX UART
F15
SPI_CLK
O
SPI Clock output
1.8V
E15
SPI_MISO/ RX_AUX
I
SPI data Master Input Slave output
/ RX_AUX
1.8V
D15
SPI_MOSI/TX_AUX
O
SPI data Master Output Slave
input/ TX_AUX
1.8V
H14
SPI_CS/GPIO11
O
SPI Chip select output / GPIO11
1.8V
See note below
SD/MMC Card Digital I/O
J12
SD/MMC_CMD
O
SD Command
1.8/2.95V
F12
SD/MMC_CLK
O
SD Card Clock
1.8/2.95V
E12
SD/MMC_DATA0
I/O
SD Serial Data 0
1.8/2.95V
G12
SD/MMC_DATA1
I/O
SD Serial Data 1
1.8/2.95V