Digi XBee S2C 802.15.4 User Manual page 22

Hardware
Pin Name
4 DIN/CONFIG
5 [Reserved]
6 RESET
7 PWM0/RSSI PWM
8 PWM1
9 [Reserved]
10 DI8/SLEEP_RQ/DTR
11 GND
12 SPI_
ATTN/BOOTMODE
13 GND
14 SPI_CLK
15 SPI_SSEL
16 SPI_MOSI
17 SPI_MISO
18 [Reserved]
19 [Reserved]
20 [Reserved]
21 [Reserved]
22 GND
23 [Reserved]
24 DIO4
25 DIO7/CTS
26 ON/SLEEP
27 V
REF
28 DIO5/ASSOC
29 DIO6/RTS
XBee/XBee-PRO S2C 802.15.4 RF Module User Guide
Direction Function
Input
UART data in
Output
Do not connect
Input
Module reset (reset pulse must be at least 200 ns).
This must be driven as an open drain/collector. The
device drives this line low when a reset occurs. Never
drive this line high.
Output
PWM output 0 / RX signal strength indicator
Output
PWM output 1
-
Do not connect
Input
Pin sleep control line or digital input 8
-
Ground
Output
SPI Attention. Do not tie low on reset.
-
Ground
Input
SPI clock
Input
SPI select
Input
SPI Data In
Output
SPI Data Out
-
Do not connect
-
Do not connect
-
Do not connect
-
Do not connect
-
Ground
-
Do not connect
Both
Digital I/O 4
Both
Digital I/O 7 / Clear-to-send flow control
Output
Device sleep status indicator
-
Feature not supported on this device. Used on other
XBee devices for analog voltage reference.
Both
Digital I/O 5 / Associated indicator
Both
Digital I/O 6 / Request-to-send flow control
Pin signals
22