User's Manual

1322x-USB Reference Manual, Rev. 1.1
Freescale Semiconductor 2-1
Chapter 2
1322x USB Dongle/Zniffer Overview
2.1 Introduction
The 1322x USB Dongle/Zniffer is an IEEE 802.15.4 compliant wireless node based on the Freescale
MC1322x device. The heart of the 1322x USB module is Freescale’s MC1322x 99-pin LGA
Platform-in-Package (PiP) solution that can be used for wireless applications ranging from simple
proprietary point-to-point connectivity to complete ZigBee mesh networking. The MC1322x is designed
to provide a highly integrated, total solution, with premier processing capabilities and very low power
consumption.
The 1322x USB Dongle/Zniffer provides a platform to evaluate the MC1322x device, develop software
and applications, and demonstrate IEEE 802.15.4 and ZigBee networking capabilities. The dongle
connects the core device to a personal computer (PC) through a USB port <> UART port interface device.
The small form factor illustrates an extremely small footprint, 4-layer printed circuit board (PCB) layout
with a chip antenna. The MC1322x node typically interfaces to the PC through a virtual COM port (VCM).
As initially provided from Freescale, the dongle is loaded with a software application that implements a
wireless “sniffer” to monitor over-the-air IEEE 802.15.4 traffic.
Figure 2-1. 1322x USB Dongle/Zniffer Top View