Data Sheet

LILY-W1 series - Data sheet
UBX-15000203 - R12 Pin definition Page 13 of 42
C1-Public
No. Name
Voltage level
I/O Description Remarks
1 SDIO_D1 VCC_IO I/O SDIO 4-bit Mode: Data line Bit[1]
SDIO 1-bit Mode: Interrupt
SDIO SPI Mode: Interrupt
2 SDIO_D3 VCC_IO I/O SDIO 4-bit Mode: Data line Bit[3]
SDIO 1-bit Mode: Reserved
SDIO SPI Mode: Card select (active low)
3 SDIO_D0 VCC_IO I/O SDIO 4-bit Mode: Data line Bit[0]
SDIO 1-bit Mode: Data line
SDIO SPI Mode: Data output
4 SDIO_CMD/
USB_VBUS_ON
VCC_IO I/O SDIO 4-bit Mode: Command/response
(input/output)
SDIO 1-bit Mode: Command line
SDIO SPI Mode: Data input
USB Mode: USB_VBUS_ON (input)
Pin is also used by USB
as USB_VBUS_ON: USB
VBus On, USB power
valid indication.
5 SDIO_CLK VCC_IO I SDIO 4-bit Mode: Clock input
SDIO 1-bit Mode: Clock input
SDIO SPI Mode: Clock input
6 GND GND N/A Ground
7 SDIO_D2 VCC_IO I/O
SDIO 4-bit Mode: Data line Bit[2] or
read wait (optional)
SDIO 1-bit Mode: Read wait (optional)
SDIO SPI Mode: Reserved
8 VCC_IO VCC_IO I IO voltage supply, 1.8 or 3.3 V
9 VCC VCC I Module main voltage supply 3.0-3.6 V
10 GND GND N/A Ground
11 GND GND N/A Ground
12 ANT RF I/O Antenna signal Only available on
LILY-W131
13 GND GND N/A Ground
14 PD-n VCC (3.3 V) I Power down, active low Internal pull-up.
Notice 3.3 V pin.
15 ANT_SEL VCC (3.3 V) O External antenna selection signal for
antenna diversity if two antennas are
used.
Only available on
LILY-W131. Inverted
version of ANT_SEL-n.
Notice 3.3 V pin.
16 ANT_SEL-n VCC (3.3 V) O
External Inverted antenna selection
signal for antenna diversity if two
antennas are used.
Only available on
LILY-W131. Inverted
version of ANT_SEL.
Notice 3.3 V pin.
17 WAKE_UP 1.8 V I Wake up input signal.
Active high
Programmable pull-up
or
pull-down. Notice the
1.8 V pin.
18 Reserved - - Reserved Do not connect.
19 HOST_WKUP VCC_IO O Output wake-up signal to host
20 Reserved - - Reserved Do not connect.
21 GND GND N/A Ground
22 USB/SDIO-n 1.8 V I Select host interface Low level activates the
SDIO interface.
High level activates the
USB interface.
Internal pull-up (USB is
default). N
otice 1.8 V pin.
23 USB_DP V_USB I/O USB Serial Differential Data Positive The USB voltage levels
depends on the USB
speed. See also USB
characteristics and
Electrical specifications
.