User's Manual

XBee®/XBee‐PRO®RFModules‐802.15.4‐v1.xEx[2011.012.6]
©2011DigiInternatonal,Inc. 62
RX (Receive) Packet: 16-bit Address
API Identifier Value: 0x81
When the module receives an RF packet, it is sent out the UART using this message type.
Figure3‐24. RXPacket(16‐bitaddress)Frames
RX (Receive) Packet: 64-bit Address IO
API Identifier Value: 0x82
I/O data is sent out the UART using an API frame.
Figure3‐25. RXPacket(64‐bitaddress)Frames
RX (Receive) Packet: 16-bit Address IO
API Identifier Value: 0x83
I/O data is sent out the UART using an API frame.
Figure3‐26. RXPacket(16‐bitaddress)Frames
cmdData0x81
Length ChecksumStart Delimiter Frame Data
Identifier-specific DataAPI Identifier
MSB LSB0x7E 1 ByteAPI-specific Structure
bit 0 [reserved]
bit 1 = Address broadcast
bit 2 = PAN broadcast
bits 3-7 [reserved]
Up to 100 Bytes per packet
Received Signal Strength Indicator -
Hexadecimal equivalent of (-dBm) value.
(For example: If RX signal strength = -40
dBm, “0x28” (40 decimal) is returned)
Source Address (Bytes 5-6) RSSI (Byte 7)
MSB (most significant byte) first,
LSB (least significant) last
Options (Byte 8) RF Data (Byte(s) 9-n)