TWR-RF-SNAP User’s Manual
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3
Hardware Features
This section provides more details about the features and functionality of the TWR-RF-SNAP.
3.1
Using the TWR-RF-SNAP
Options for Powering the TWR-RF-SNAP Module:
The module can be powered using any of the following options:
1)
USB connector (either via USB AC-power supply or USB port on a PC)
2)
The Tower Elevator modules (relying on the 5V supply pins)
3)
The battery connector
Power Switch Settings:
Power Switch
Position
Operation
Far Left
Draws power from the battery connector
Middle
OFF
Far Right
Draws power from USB Port or Primary
Elevator connector
Installing into the Tower System:
In additional to functioning standalone, the TWR-RF-SNAP is designed to be used in the Freescale
Tower System. When inserted into the Tower System a Tower MCU module can utilize the TWR-RF-
SNAP to relay information to additional SNAP nodes, including the provided SN132 USB Dongle. The
TWR-RF-SNAP can also access compatible peripheral modules directly using I2C and SPI.
To ensure proper functionality of the TWR-RF-SNAP within the Tower System the Primary Edge
connector (marked with the white stripe) must be inserted into the Primary Elevator.
The TWR-RF-SNAP is also compatible with the General Purpose Tower Plug-in modules (or TWRPIs). A
TWRPI module can be inserted directly into the available socket on the TWR-RF-SNAP. The TWRPI
socket on the TWR-RF-SNAP provides access to I2C, Analog, and GPIO’s.
