
Technical specifications
Serial communication specifications
XBee/XBee-PRO® S2C ZigBee® RF Module
19
Serial communication specifications
The XBee/XBee-PRO ZigBee RF Module supports both Universal Asynchronous Receiver / Transmitter
(UART) and Serial Peripheral Interface (SPI) serial connections.
UART pin assignments
Specifications
Device pin number
UART pins
XBee (surface-mount)
XBee (through-hole)
DOUT
3
2
DIN / CONFIG
4
3
CTS / DIO7
25
12
RTS/ DIO6
29
16
For more information on UART operation, see
SPI pin assignments
The SC2 (Serial Communication Port 2) of the Ember 357 is connected to the SPI port.
Specifications
Device pin number
SPI pins
XBee (surface-mount)
XBee (through-hole)
SPI_SCLK
14
18
SPI_SSEL
15
17
SPI_MOSI
16
11
SPI_MISO
17
4
For more information on SPI operation, see
GPIO specifications
XBee/XBee-PRO ZigBee RF Modules have 15 General Purpose Input / Output (GPIO) ports available.
The exact list depends on the device configuration as some GPIO pads are used for purposes such as
serial communication.
See
for more information on configuring and using GPIO ports.
GPIO electrical specification
Value
Voltage - supply
2.1 - 3.6 V