Operate in API mode API frames
XBee®/XBee-PRO SX RF Module User Guide
146
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
specifications.
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.
Reserved
12-13 Reserved.
Source endpoint
14 Endpoint of the source that initiates transmission.
Destination endpoint
15
Endpoint of the destination where the message is addressed.
Cluster ID
16-17 The Cluster ID where the frame is addressed.
Profile ID
18-19 The Profile ID where the fame is addressed.
Receive options
20
Bit field:
0x01 = Packet acknowledged
0x02 = Packet was a broadcast packet
Ignore all other bits.
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.
Frame data fields Offset Example
Start delimiter 0 0x7E
Length MSB 1 0x00
LSB 2 0x18
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