XB24-PDK Digi International/Maxstream, XB24-PDK Datasheet - Page 44

• Manufacturer Part Number: XB24-PDK
• Description: KIT DEV PRO ZIGBEE
• Manufacturer: Digi International/Maxstream
• Series: XBee™r
• Type: 802.15.4/Zigbeer

Specifications of XB24-PDK

• Frequency: 2.4GHz
• For Use With/related Products: Xbee-PRO Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

XBee®/XBee‐PRO® RF Modules ‐ 802.15.4 ‐ v1.xEx [2009.09.23]
EC (CCA Failures) Command
ED (Energy Scan) Command
EE (AES Encryption Enable) Command
FP (Force Poll) Command
<Diagnostics> The EC command is used to read
and reset the count of CCA (Clear Channel
Assessment) failures. This parameter value incre-
ments when the RF module does not transmit a
packet due to the detection of energy that is
above the CCA threshold level (set with CA com-
mand). This count saturates at its maximum value.
Set the EC parameter to “0” to reset count.
<Networking {Association}> The ED command is
used to send an “Energy Detect Scan”. This
parameter determines the length of scan on each
channel. The maximal energy on each channel is
returned and each value is followed by a carriage
return. An additional carriage return is sent at the
end of the command.
The values returned represent the detected energy level in units of -dBm. The actual scan time on
each channel is measured as Time = [(2 ^ ED PARAM) * 15.36] ms.
Note: Total scan time is this time multiplied by the number of channels to be scanned. Also refer to
the SD (Scan Duration) table. Use the SC (Scan Channel) command to choose which channels to scan.
<Networking {Security}> The EE command is
used to set/read the parameter that disables/
enables 128-bit AES encryption.
The XBee®/XBee-PRO® firmware uses the
802.15.4 Default Security protocol and uses AES
encryption with a 128-bit key. AES encryption dic-
tates that all modules in the network use the
same key and the maximum RF packet size is 95
Bytes.
When encryption is enabled, the module will
always use its 64-bit long address as the source
address for RF packets. This does not affect how the MY (Source Address), DH (Destination
Address High) and DL (Destination Address Low) parameters work
If MM (MAC Mode) > 0 and AP (API Enable) parameter > 0:
With encryption enabled and a 16-bit short address set, receiving modules will only be able to
issue RX (Receive) 64-bit indicators. This is not an issue when MM = 0.
If a module with a non-matching key detects RF data, but has an incorrect key: When encryption is
enabled, non-encrypted RF packets received will be rejected and will not be sent out the UART.
Transparent Operation --> All RF packets are sent encrypted if the key is set.
API Operation --> Receive frames use an option bit to indicate that the packet was encrypted.
<Networking (Association)> The FP command is
used to request indirect messages being held by
a Coordinator.
© 2009 Digi Internatonal, Inc.
AT Command: ATFP
Minimum Firmware Version Required: v1.x80
AT Command: ATEC
Parameter Range:0 - 0xFFFF
Related Command: CA (CCA Threshold)
Minimum Firmware Version Required: v1.x80
AT Command: ATED
Parameter Range:0 - 6
Related Command: SD (Scan Duration), SC
(Scan Channel)
Minimum Firmware Version Required: v1.x80
AT Command: ATEE
Parameter Range:0 - 1
Default Parameter Value:0
Related Commands: KY (Encryption Key), AP
(API Enable), MM (MAC Mode)
Minimum Firmware Version Required: v1.xA0
Parameter
0
1
Configuration
Disabled
Enabled
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