Data Sheet

Sterling™ LWB+
Datasheet
https://www.lairdconnect.com/
23
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Pin
No
Name
I/O
Type
Voltage
Domain
Description
Note: 1.8V or 3.3V
21
BT_REG_ON
DI
VDD_VIO
USED BY PMU TO POWER UP OR POWER DOWN THE
INTERNAL REGULATORS USED BY THE BLUETOOTH
SECTION.
Note:
When de-asserted, this pin holds the WLAN section in
reset. This pin has an internal 200k ohm pull down resistor
that is enabled by default. It can be disabled through
programming.
22
SDIO_D0
(JTAG_TMS)
DIO
VDD_VIO
SDIO DATA LINE 0
23
SDIO_D1
(JTAG_TDI)
DIO
VDD_VIO
SDIO DATA LINE 1
24
GND
GND
GND
GROUND
25
SDIO_D2
(JTAG_TDO)
DIO
VDD_VIO
SDIO DATA LINE 2
26
SDIO_CMD
DIO
VDD_VIO
SDIO COMMAND LINE
27
SDIO_D3
(JTAG_TRSTN)
DIO
VDD_VIO
SDIO DATA LINE 3
28
GND
GND
GND
GROUND
29
SDIO_CLK
(JTAG_TCK)
DIO
VDD_VIO
SDIO CLOCK LINE
30
GND
GND
GND
GROUND
31
BT_UART_RTS_L
DO
VDD_VIO
BT UART REQUEST-TO-SEND
32
BT_UART_CTS_L
DI
VDD_VIO
BT UART CLEAR-TO-SEND
33
BT_UART_TXD
DO
VDD_VIO
BT UART TRANSMIT OUTPUT
34
BT_UART_RXD
DI
VDD_VIO
BT UART RECEIVE INPUT
35
NC
Floating
Floating
Floating Pin, No connect to anything
36
NC
Floating
Floating
Floating Pin, No connect to anything
37
NC
Floating
Floating
Floating Pin, No connect to anything
38
BT_PCM_CLK
DIO
VDD_VIO
PCM CLOCK; CAN BE MASTER (OUTPUT) OR SLAVE
(INPUT)
39
BT_DEV_WAKE
DI
VDD_VIO
DEV_WAKE OR GENERAL-PURPOSE I/O SIGNAL
40
BT_HOST_WAKE
DO
VDD_VIO
HOST_WAKE OR GENERAL-PURPOSE I/O SIGNAL
41
GND
GND
GND
GROUND
42
GND
GND
GND
GROUND
43
GND
GND
GND
GROUND