Digi XBee Product Manual

Command descriptions for the XBee/XBee-PRO RF Module
XBee / XBee-PRO RF Modules 802.15.4 Product Manual 77
<Networking {Addressing}> The MM command is used to set and read the MAC Mode value. The MM
command disables/enables the use of a Digi header contained in the 802.15.4 RF packet. By default
(MM = 0), Digi Mode is enabled and the module adds an extra header to the data portion of the
802.15.4 packet. This enables the following features:
• ND and DN command support
• Duplicate packet detection when using ACKs
• "RR command
• "DIO/AIO sampling support
The MM command allows users to turn off the use of the extra header. Modes 1 and 2 are strict
802.15.4 modes. If the Digi header is disabled, ND and DN parameters are also disabled.
Note When MM=1 or 3, MAC and CCA failure retries are not supported.
Note When the Digi header is disabled, encrypted data that is not valid will be sent out of the UART
and not filtered out.
MY (16-bit Source Address) command
<Networking {Addressing}> The MY command is used to set and read the 16-bit source address of
the RF module.
By setting MY to 0xFFFF, the reception of RF packets having a 16-bit address is disabled. The 64-bit
address is the module’s serial number and is always enabled.
NB (Parity) command
AT Command: ATMY
Parameter Range: 0 - 0xFFFF
Default Parameter Value: 0
Related Commands: DH (Destination Address High), DL (Destination Address Low), CH (Channel), ID
(PAN ID)
AT Command: ATNB
Parameter Range: 0 - 4
Parameter Configuration
08-bit no parity
18-bit even
28-bit odd
38-bit mark
48-bit space

Digi XBee Specifications

General

Operating Frequency	2.4 GHz
RF Data Rate	250 kbps
Model	XBee S2C
Category	Control Unit
Operating Voltage	2.1 to 3.6V DC
Operating Temperature	-40 to +85 °C
Interface	UART
Dimensions	24.38 x 27.61 x 9.14 mm