ATAVRRZ201 Atmel, ATAVRRZ201 Datasheet - Page 13

• 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