User's Manual

LILY-W1 series - Data Sheet
UBX-15000203 - R04 Early Production Information Pin definition
Page 13 of 38
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 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