Frame descriptions Route Information Packet frame - 0x8D
XBee®-PRO 900HP/XSC RF Modules
142
Route Information Packet frame - 0x8D
Description
If you enable NACK or the Trace Route option on a DigiMesh unicast transmission, a device can output
this frame for the transmission.
Format
The following table provides the contents of the frame. For details on frame structure, see API frame
format.
Frame data fields Offset Description
Frame type 3 0x8D
Source event 4
0x11 = NACK
0x12 = Trace route
Length 5 The number of bytes that follow, excluding the checksum. If the
length increases, new items have been added to the end of the list
for future revisions.
Timestamp 6-9
MSB first, LSB last.
System timer value on the node generating the
Route Information Packet.
The timestamp is in microseconds. Only
use this value for relative time measurements because the time
stamp count restarts approximately every hour.
ACK timeout count 10
The number of MAC ACK timeouts that occur.
TX blocked count
11
The number of times the transmission was blocked due to reception
in progress.
Reserved
12
Reserved, set to 0s.
Destinationaddress 13-20
MSB first, LSB last.
The address of the final destination node of this
network-level transmission.
Source address 21-28
MSB first, LSB last.
Address of the source node of this network-level
transmission.
Responder address 29-36
MSB first, LSB last.
Address of the node that generates this Route
Information packet after it sends (or attempts to send) the packet to
the next hop (the Receiver node).
Receiver address 37-44
MSB first, LSB last.
Address of the node that the device sends (or
attempts to send) the data packet.
Example
The following example represents a possible Route Information Packet. A device receives the packet
when it performs a trace route on a transmission from one device (serial number 0x0013A200
4052AAAA) to another (serial number 0x0013A200 4052DDDD).
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