AVR2070
89
8240B-AVR-06/09
Multi-hop - A network that can relay packets over several wireless nodes to a
destination. RUM has multi-hop capability, which allows a packet to send data to
nodes that are out of range of the sending node.
PAN - Personal Area Network. Generic name for an IEEE 802.15.4 network.
PAN ID - Personal Area Network ID. A 16-bit identifier of a given network. All nodes
on a PAN use this ID number as part of the addressing scheme.
Parent Node - Every node on the network - except for the coordinator - has a parent.
The parent is a gateway to the network, and all data to and from a node passes
through the parent node.
Platform - A platform is defined as a collection of interconnections between radio
chip and microcontroller, along with some miscellaneous hardware configurations.
RF212 - Short name for Atmel's AT86RF212 transceiver.
RF230 - Short name for Atmel's AT86RF230 transceiver.
RF231 - Short name for Atmel's AT86RF231 transceiver.
RF2xx - Short name for any of Atmel's 802.15.4 transceivers.
Router node - One of three node types in a RUM network; the others are coordinator
and end nodes. A router, as the name suggests, can relay packets for other nodes
that cannot directly communicate with the coordinator. Router nodes can be used to
collect data and actuate outputs, just like an end node.
RSSI - Received Signal Strength Indication. A measure of how strong the incoming
RF signal is. RSSI can be measured by the AT86RF2xx chips during the RX_START
portion of an incoming packet.
RTOS - Real-time operating system.
RUM - Route Under MAC. This protocol routes packets at the MAC layer, as
opposed to the application or IPv6 layer, which would be a route over scheme. The
under comes from the fact that routing is done at a low level.
Short Address – The two-byte (16-bit) address that is used to uniquely identify a
node on a RUM network.
SPI - Serial Peripheral Interface. A standard method of communication between
microcontrollers and peripheral chips. The AT86RF2xx chips communicate using
SPI.
WinAVR - A windows-specific version of the GCC compiler for AVR microcontrollers,
which is meant to be used with AVR Studio, a free, fully functional IDE for Atmel AVR
microcontrollers.
WSN - Wireless Sensor Network.