Digi XBee User Manual

API Operation Frame descriptions
XBee/XBee-PRO® S2C ZigBee® RF Module
181
Explicit Rx Indicator frame - 0x91
Description
When a device configured with explicit API Rx Indicator (AO = 1) receives an RF packet, it sends it out
the serial interface using this message type.
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 0x91
64-bit source
address
4-11
MSB first, LSB last. The sender's 64-bit address. Set to
0xFFFFFFFFFFFFFFFF (unknown 64-bit address) if the sender's 64-bit
address is unknown.
16-bit source
network
address
12-13 The sender's 16-bit address.
Source
endpoint
14 Endpoint of the source that initiates transmission.
Destination
endpoint
15
Endpoint of the destination that the message is addressed to.
Cluster ID
16-17 The Cluster ID that the frame is addressed to.
Profile ID
18-19 The Profile ID that the fame is addressed to.
Receive options
20
0x01 – Packet Acknowledged
0x02 – Packet was a broadcast packet
0x20 – Packet encrypted with APS encryption
Received data
21-n Received RF data.
Example
In the following example, a device with a 64-bit address of 0x0013A200 40522BAA sends a broadcast
data transmission to a remote device with payload RxData.
If a device sends the transmission:
n With source and destination endpoints of 0xE0
n Cluster ID = 0x2211
n Profile ID = 0xC105
If AO = 1 on the receiving device, it sends the following frame out its serial interface.

Digi XBee Specifications

General

Brand	Digi
Model	XBee
Category	Control Unit
Language	English