Product manual

XBee®/XBee‐PRO®RFModules‐802.15.4‐v1.xEx[2009.09.23]
©2009DigiInternatonal,Inc. 48
MM (MAC Mode) Command
<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=0 or 3, application and CCA failure retries are not supported.
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 pack-
ets having a 16-bit address is disabled. The 64-bit
address is the module’s serial number and is
always enabled.
NB (Parity) Command
<Serial Interfacing> The NB command is used to
select/read the parity settings of the RF module
for UART communications.
Note: the module does not actually calculate and
check the parity; it only interfaces with devices at
the configured parity and stop bit settings.
AT Command: ATMM
Parameter Range:0 - 3
Parameter Configuration
0
Digi Mode (802.15.4 +
Digi header)
1 802.15.4 (no ACKs)
2 802.15.4 (with ACKs)
3 Digi Mode (no ACKs)
Default Parameter Value:0
Related Commands: ND (Node Discover), DN
(Destination Node)
Minimum Firmware Version Required: v1.x80
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
Default Parameter Value: 0
Number of bytes returned: 1