The Silicon Labs Tool stick development platform consists of two components, the tool stick base adapter and a daughter card. The tool stick base adapter provides a USB debug interface and data communications path between a windows PC and a target microcontroller. The base adapter is powered from USB and also provides power to the daughter cards. The target microcontroller and application circuitry are located on the daughter card. Some daughter cards, such as the C8051F330 daughter card, are used as general-purpose development platforms for the target microcontrollers and some are used to demonstrate a specific feature or application.

3-foot USB extension cable
Provides a debug interface
Provides a data communication interface