Integration Guide

SMK900 Integration Guide Revision 4
0x05 - …
Payload
Up to 20*B bytes of data at 50kbit/sec, 72*B bytes of data at 100kbit/sec, where B is
the number of Broadcast Out Phases if sender is a gateway, or the number of
Broadcast In Phases if sender is a node
TxReduxData
Special data send using the broadcast cycle redux phase. This command is only available for nodes
(redux phase utilization is forbidden by gateway), and only if the dynamic configuration of the
network has the redux phase enabled (see section 2.2 for more details). Note that no reply is tied to
this command.
TxReduxData (command)
Byte offset
Field
Description
0x00
Start-of-Packet
0xFB = Indicates start of protocol formatted message
0x01 - 0x02
Length
0x?? 0x?? = Number of bytes in message following this byte (Little-Endian)
0x03
Packet Type
0x07 = TxReduxData
0x04 - …
Payload
Up to 20 bytes of data at 50kbit/sec, 72 bytes of data at 100kbit/sec
RxDataPacket
Event message from transceiver to its host when it received a regular packet sent via TxLongData.
Note that this packet type is also used as a special Broadcast End Marker, in which case the packet
byte stream is hard-coded to the following: [0xFB 0x03 0x00 0x26 0xFF 0x00], a marker that is sent at
the end of every broadcast cycle, before any air command is processed (and only if configuration
register in RAM bank enableNotificationFlagsMask, flag CLOSEBROADCAST_bm, is set; see section
7.3 for details).
RxDataPacket (event)
Byte offset
Field
Description
0x00
Start-of-Packet
0xFB = Indicates start of protocol formatted message
0x01 - 0x02
Length
0x?? 0x?? = Number of bytes in message following this byte (Little-Endian)
0x03
Packet Type
0x26 = RxDataPacket
0x04
Broadcast Phase
ID
0x00-0x03 = Received packet Broadcast Phase ID; 0xFF = Broadcast End Marker
(special case)
0x05
RSSI
0x00-0xFF = Received packet strength (for regular received packet); this value is
forced to 0x00 if Broadcast Phase ID is 0xFF (Broadcast End Marker)
0x06 - …
Payload
Up to 20 bytes of data at 50kbit/sec, 72 bytes of data at 100kbit/sec
RxReduxDataPacket
Event message from transceiver to host when it receives a packet in the broadcast cycle redux phase.
This is only available if the current dynamic configuration of the network allows a redux phase.
RxReduxDataPacket (event)
Byte offset
Field
Description
0x00
Start-of-Packet
0xFB = Indicates start of protocol formatted message
0x01 - 0x02
Length
0x?? 0x?? = Number of bytes in message following this byte (Little-Endian)
0x03
Packet Type
0x28 = RxReduxDataPacket
0x04
RSSI
0x00-0xFF = Received packet strength
0x05 - …
Payload
Up to 20 bytes of data at 50kbit/sec, 72 bytes of data at 100kbit/sec
RXBcastInSniffedDataPacket
Event message from a node (exclusively) transceiver to host, when it receives a sniffed packet
transmitted from another node towards the network gateway via command TxLongData. This
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