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Frame descriptions
Transmit Status frame - 0x8B
Description
When a Transmit Request (0x10, 0x11) completes, the device sends an 0x8B Transmit Status message
out of the serial interface. This message indicates if the Transmit Request was successful or if it failed.
Note
Broadcast transmissions are not acknowledged and always return a status of 0x00, even if the
delivery failed.
Format
The following table provides the contents of the frame. For details on frame structure, see
format.
Frame data
fields
Frame type
Frame ID
16-bit
destination
address
Transmit retry
count
Delivery
status
Reserved
Example
In the following example, the destination device reports a successful unicast data transmission. The
outgoing Transmit Request that this response frame came from uses Frame ID of 0x47.
Frame Fields
Start delimiter
Digi XBee3® 802.15.4 RF Module User Guide
Offset Description
3
0x8B
4
The Frame ID of the response will be the same value that was used in the
originating Tx request.
5
The 16-bit Network Address where the packet was delivered (if
successful). If not successful, this address is 0xFFFD (destination address
6
unknown).
The number of application transmission retries that occur.
7
0x00 = Success
8
0x01 = MAC ACK Failure
0x02 = CCA failure
0x03 = Indirect message unrequested
0x21 = Network ACK Failure
0x31 = Internal resource error
0x74 = Data payload too large
9
Transmit Status frame - 0x8B
Offset
Example
0
0x7E
API frame
156
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