XBIB-U【PDF 46/72 页】BOARD USB ZIGBEE MOD PRO

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XBee/XBeePRO"燨EM燫F燤odules??02.15.4?爒1.xAx燵2007.05.031]

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Chapter??燫F燤odule燙onfiguration

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 Max-

Stream header contained in the 802.15.4 RF

packet. By default (MM = 0), MaxStream 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

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 MaxStream header is dis-

abled, ND and DN parameters are also disabled.

Note: When MM > 0, 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 modules 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.

AT Command: ATMM

Parameter Range:0 - 2

Parameter

Configuration

MaxStream Mode

(802.15.4 + MaxStream

header)

802.15.4 (no ACKs)

802.15.4 (with 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

8-bit (no parity or

7-bit (any parity)

8-bit even

8-bit odd

8-bit mark

8-bit space

Default Parameter Value: 0

Number of bytes returned: 1

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