Specifications
XBee®/XBee‐PRO®SERFModules
©2009DigiInternational,Inc. 110
Serial Interfacing (I/O)
1.Nodetypesthatsupportthecommand:C=Coordinator,R=Router,E=EndDevice
SerialInterfacingCommands
AT
Command
Name and Description
Node
Type
1
Parameter Range Default
AP
API Enable. Enable API Mode.
The AP command is only supported when using API firmware: 31xx (API Coordinator),
33xx (API Router), 39xx (API End Device).
CRE
1 - 2
1 = API-enabled
2 = API-enabled
(w/escaped control
characters)
1
AO
API Options. Configure options for API. Current options select the type of receive API
frame to send out the UART for received RF data packets.
CRE 1 - Default
1 - Explicit Rx data indicator API frame enabled (0x91). ZDO Passthru is disabled.
3 – Explicit RX data indicator API frame enabled (0x91). ZDO Passthru is enabled. ZDO
requests which are not supported by the stack, and the ZDO requests Simple_Desc_req,
Match_Desc_req, and Active_EP_req are passed out the UART port to the external
processor in a 0x91 API frame. The external processor is responsible for their
processing and response generation.
If you enable option 3, the external processor needs to do the following: 1) respond to
Simple_Desc_req; 2) respond to Match_Desc_req; 3) respond to Active_EP_req; 4)
respond to other ZDO requests which are not supported by the stack.
For example, remote devices which are attempting to Authenticate after joining will send
a Match_Desc_req in an attempt to discover the endpoint which supports the Key
Establishment Cluster in the Smart Energy Profile, which usually resides on the
Coordinator (Energy Service Portal or Meter Device).
CRE
1 - Explicit Rx data
indicator API frame
enabled (0x91)
3 - Explicit Rx data
indicator frame enabled
(0x91) and ZDO passthru
enabled.
1
BD
Interface Data Rate. Set/Read the serial interface data rate for communication between
the module serial port and host.
Any value above 0x07 will be interpreted as an actual baud rate. When a value above
0x07 is sent, the closest interface data rate represented by the number is stored in the
BD register.
CRE
0x80 - 0xE1000 (non-
standard rates up to
921kbps)
3
NB Serial Parity. Set/Read the serial parity setting on the module. CRE
0 = No parity
1 = Even parity
2 = Odd parity
3 = Mark parity
0
LT
Set/read the Associate LED blink rate. This value determines the blink rate of the
Associate/DIO5 pin if D5=1 and the module has started a network. Setting LT to 0 will
use the default blink time (500ms).
CRE 0X0A-0XFF X10 MS 0