Overview - NXP Semiconductors TWR-RF-SNAP User Manual

1 Overview

The Wireless Mesh Networking Tower Board (TWR-RF-SNAP) is a peripheral Tower System Module.
The TWR-RF-SNAP provides wireless mesh networking via the FCC Certified Synapse Wireless SM700
RF Engine. The SM700 is based on the Freescale MC13224 chip which combines a 32-bit ARM7 MCU
with an IEEE 802.15.4 radio transceiver.
The TWR-RF-SNAP module can function standalone or within the Tower System. As part of the Tower
System, the TWR-RF-SNAP can interface with Tower System controller modules via SPI and can access
available Tower System peripheral modules using UART or I2C. The TWR-RF-SNAP also includes a
General Purpose Tower Plug-in (TWRPI) socket allowing direct access to a selection of sensor plug-ins
via I2C.
A SN132 USB Dongle is also included with the TWR-RF-SNAP. The USB Dongle features the RF100 RF
Engine based on a Freescale MC9S08 MCU and the Freescale MC13191 radio. The USB dongle
provides a communication portal to a host computer via USB.
The TWR-RF-SNAP can be accessed in Synapse's Portal IDE using either the on-board USB or wirelessly
using the included RF100 USB Dongle.
The TWR-RF-SNAP features the following:
Synapse Wireless SM700. A surface-mount RF Engine powered by the Freescale MC13224.
Onboard Sensors / Push Buttons / LEDs for user interaction and feedback
Tower Plug-in (TWRPI) socket for additional sensors
microUSB connector for powering and providing wired access to the Portal IDE
Optional battery connector for untethered operation.
Included SN132 USB Dongle with RF100 RF Engine for wireless access to a host computer
TWR-RF-SNAP User's Manual Page 3 of 22