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WB50NBT
Hardware Integration Guide
P
D
IN
EFINITIONS
Table 1: Pin Definitions
#
Pin Name
1
GND
2
GPIO_1
3
SPI_NPCS1
4
GPIO_2
5
SPI_NPCS0
6
GPIO_3
7
GND
8
GPIO_4
9
SPI_MOSI
10
DRXD
11
SPI_MISO
12
DTXD
13
GND
14
GPIO_5
15
SPI_CLK
16
GPIO_6
17
GND
18
LED_0
19
E_REFCK
20
LED_1
21
GND
22
LED_2
23
E_TXD0
24
STAT_0
25
E_TXD1
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wi-fi
Section
I/O
Reference
-
-
GPIO
I/O
VCC3_3
O
VCC3_3
GPIO
I/O
VCC3_3
O
VCC3_3
GPIO
I/O
VCC3_3
-
-
GPIO
I/O
VCC3_3
O
VCC3_3
DBGU
I
VCC3_3
I
VCC3_3
DBGU
O
VCC3_3
-
-
GPIO
I/O
VCC3_3
O
VCC3_3
GPIO
I/O
VCC3_3
-
-
O
VCC3_3
I
VCC3_3
O
VCC3_3
-
-
O
VCC3_3
O
VCC3_3
O
VCC3_3
O
VCC3_3
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Description
Ground
General I/O 1
SPI Bus Chip Select 1
General I/O 2
SPI Bus Chip Select 0
General I/O 3
Ground
General I/O 4
SPI Master Out/Slave In
Console/Debug Serial Input
SPI Master In/Slave Out
Console/Debug Serial Output
Ground
General I/O 5
SPI Programming Clock
Master – O; Slave – I
General I/O 6
Ground
LED Indicator (WLAN Act)
(IO = 8 Ma maximum)
Ethernet Reference Clock
(50 MHz maximum)
LED Indicator (TBD)
(IO = 8 Ma maximum)
Ground
LED Indicator (TBD)
(IO = 8 Ma maximum)
Ethernet Data Output 0
Status High while system in reset,
bootloader, or OS boot;
Low when OS is up
Ethernet Data Output 1
11
If Unused
Must be connected to
GND
Leave open
Leave open
Leave open
Leave open
Leave open
Must be connected to
GND
Leave open
Leave open
Leave open
Leave open
Leave open
Must be connected to
GND
Leave open
Leave open
Leave open
Must be connected to
GND
Leave open
Leave open
Leave open
Must be connected to
GND
Leave open
Leave open
Leave open
Leave open
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