
API Operation
Frame descriptions
XBee/XBee-PRO® S2C ZigBee® RF Module
177
Transmit Status frame - 0x8B
Description
When a Transmit Request (0x10, 0x11) completes, the device sends a Transmit Status message out of
the serial interface. This message indicates if the Transmit Request was successful or if it failed.
Format
The following table provides the contents of the frame. For details on frame structure, see
Frame data
fields
Offset Description
Frame type
3
0x8B
Frame ID
4
Identifies the serial interface data frame being reported. If Frame ID = 0 in
the associated request frame, no response frame is delivered.
16-bit
destination
address
5
The 16-bit Network Address where the packet was delivered (if
successful). If not successful, this address is 0xFFFD (destination address
unknown).
6
Transmit retry
count
7
The number of application transmission retries that occur.
Delivery
status
8
0x00 = Success
0x01 = MAC ACK Failure
0x02 = CCA Failure
0x15 = Invalid destination endpoint
0x21 = Network ACK Failure
0x22 = Not Joined to Network
0x23 = Self-addressed
0x24 = Address Not Found
0x25 = Route Not Found
0x26 = Broadcast source failed to hear a neighbor relay the message
0x2B = Invalid binding table index
0x2C = Resource error lack of free buffers, timers, etc.
0x2D = Attempted broadcast with APS transmission
0x2E = Attempted unicast with APS transmission, but
EE
=0
0x32 = Resource error lack of free buffers, timers, etc.
0x74 = Data payload too large
0x75 = Indirect message unrequested
Discovery
status
9
0x00 = No Discovery Overhead
0x01 = Address Discovery
0x02 = Route Discovery
0x03 = Address and Route
0x40 = Extended Timeout Discovery
Example
In the following example, the destination device reports that a unicast data transmission was
successful with a 16-bit address of 0x7D84. The transmission could have been sent with the 16-bit