ATAVRRZ201 Atmel, ATAVRRZ201 Datasheet - Page 13
![KIT RZ201 CTLR BOARDS & SOFTWARE](/photos/14/9/140921/atavrrz201_sml.jpg)
ATAVRRZ201
Manufacturer Part Number
ATAVRRZ201
Description
KIT RZ201 CTLR BOARDS & SOFTWARE
Manufacturer
Atmel
Series
AVR®r
Type
802.15.4/Zigbeer
Specifications of ATAVRRZ201
Frequency
2.4GHz
Wireless Frequency
2.4 GHz
Interface Type
JTAG
Antenna
PCB Trace
Silicon Manufacturer
Atmel
Silicon Core Number
ATmega1281V, AT86RF230
Kit Application Type
Wireless Connectivity
Application Sub Type
ZigBee Wireless Network
Silicon Family Name
ZigBee
Rohs Compliant
Yes
For Use With/related Products
AT86RF230
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
4.1
Demonstration Kit User Guide
Channel Scan
This section describes how the software furnished with the kit is used to demonstrate a
simple IEEE 802.15.4 network operating with a star topology. The star network is
shown below in Figure-4.1 and consists of a Personal Area Network (PAN) Coordinator
and a number of End Devices (in the case of this kit). The distinguishing feature of a
star network topology is that communication between End Devices is always routed
through the PAN Coordinator. Direct communication between End Devices is never
allowed.
Figure 4-1. Simple star network
The process of creating a network begins with the PAN Coordinator. Upon power up,
the PAN Coordinator must select a channel on which to create its network. The PAN
Coordinator does this by broadcasting a Beacon Request message. The PAN Coordi-
nator repeats this broadcast on all channels from 11 to 26 in search of a channel without
a PAN Coordinator. If the channel is in use by another network, that network’s PAN
Coordinator will respond with a Beacon. However, if the channel is unoccupied, the
Beacon Request will not be answered. By default, the lowest unoccupied channel of the
scan becomes the channel on which the network will form.
Section 4
PAN Coordinator
End Device
Functional Overview
5183A–ZIGB–12/07/06
4-1