Reference Manual

Pin signals Pin signals for the XBee 3 micro module
Digi XBee® 3 RF Module Hardware Reference Manual
27
Pin# Name Direction
Default
state Description
10 GND - - Ground.
11 SPI_ATTN/ BOOTMODE/DIO19 Output Output
Serial peripheral
interface attention
Do not tie low on
reset.
12 GND - - Ground.
13 SPI_CLK /DIO18 Input Input Serial peripheral
interface
clock/GPIO.
14 SPI_SSEL/DIO17 Input Input Serial peripheral
interface not
select/GPIO.
15 SPI_MOSI/DIO16 Input Input Serial peripheral
interface data
in/GPIO.
16 SPI_MISO/DIO15 Output Output Serial peripheral
interface data
out/GPIO.
17 [reserved] - Disabled Do not connect.
18 [reserved] - Disabled
Do not connect.
19 [reserved] - Disabled
Do not connect.
20 [reserved] - Disabled
Do not connect.
21 GND - - Ground.
22 [reserved] - Disabled Do not connect.
23 DIO4 Both Disabled GPIO.
24 CTS/DIO7 Both Output Clear to send flow
control/GPIO.
25 ON/SLEEP/DIO9 Both Output Device status
indicator/GPIO.
26 ASSOCIATE/DIO5 Both Output Associate
Indicator/GPIO.
27 RTS/DIO6 Both Input Request to send
flow control /GPIO.
28 AD3/DIO3 Both Disabled Analog input/GPIO.