Digi XBee XTC User Manual page 70

API frames
You can read the maximum number of payload bytes with the NP command.
Format
The following table provides the contents of the frame. For details on the frame structure, see
frame specifications.
Frame data
fields
Frame type
Frame ID
64-bit
destination
address
Reserved
Broadcast
radius
Transmit
options
RF data
Transmit Options bit field
Bit field:
Bit Meaning
0 Disable ACK
1 Disable RD
2 NACK
3 Trace route
4 Reserved
5 Reserved
6,7 Delivery method
XBee®/XBee-PRO XTend Compatible (XTC) DigiMesh RF Module User Guide
Offset Description
3 0x10
Identifies the data frame for the host to correlate with a subsequent ACK
4
(0x8B). If set to 0, the device does not send a response.
MSB first, LSB last. Set to the 64-bit address of the destination device.
5-12
Broadcast = 0x000000000000FFFF
13-14 Set to 0xFFFE.
Sets the maximum number of hops a broadcast transmission can occur. If
15
set to 0, the broadcast radius is set to the maximum hops value.
See the following Transmit Options table.
16
Set all other bits to 0.
Up to NP bytes per packet. Sent to the destination device.
17-n
Description
Disable acknowledgments on all unicasts
Disable Route Discovery on all DigiMesh unicasts
Enable NACK messages on all DigiMesh API packets
Enable a Trace Route on all DigiMesh API packets
<set this bit to 0>
<set this bit to 0>
b'00 = <invalid option>
b'01 - Point-multipoint (0x40)
b'10 = Repeater mode (directed broadcast (0x80)
b'11 = DigiMesh (0xC0)
Transmit Request frame - 0x10
API
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