Tower KW2xDxxx Hardware Reference Manual, Rev. 0.2
Freescale Semiconductor
2-1
Chapter 2
TWR-KW2xDxxx Development Platform Overview and
Description
2.1
Introduction
The TWR-KW2xDxxx development platform is an evaluation environment based on the Freescale
MKW21D256 or MKW24D512 SIP devices (MKW2xDxxx).
The MKW2xDxxx device family is Freescale's latest generation ZigBee™ platform which incorporates a
complete low power 2.4 GHz radio frequency transceiver and a Kinetis family low power, mixed-signal
ARM Cortex™-M4 MCU into a single package. Additionally, the MKW2xDxxx comprising of a a 2.4
GHz Industrial, Scientific, and Medical (ISM) and Medical Body Area Network (MBAN) transceiver are
intended for the IEEE® 802.15.4 Standard.
Freescale supplements the MKW2xDxxx with tools and software that include hardware evaluation and
development boards, software development IDE and applications, drivers, custom PHY usable with
Freescale’s IEEE 802.15.4 compatible MAC.
The TWR-KW2xDxxx development platform comprises two boards:
•
Tower — TWR-KW21D256 — this board contains the MKW21D256 device with 32 MHz
reference oscillator crystal, RF circuitry including antenna, and supporting circuitry. The board is
a standalone, with a software stack to implement an IEEE 802.15.4 Standard platform solution. The
following list summarizes the features of the TWR-KW21D256 board.
— Provides compact reference design for device footprint and RF layout.
— Provides pre-designed MKW21D256 hardware (device and function).
— Provides access to the MKW21D256 set of GPIO/Alternate port functions.
— Provides target MCU Cortex 20-pin (0.05”) JTAG debug port.
— Provides a Mini USB Type B coupled with OpenSDA use as debug interface, serial
communication and power supply (J13, Cortex 10-pin (0.05”) JTAG port for OpenSDA
updates).
•
Tower — TWR-KW24D512 — this board contains the MKW24D512 device with 32 MHz
reference oscillator crystal, RF circuitry including antenna, and supporting circuitry. The board is
a standalone, with a software stack to implement an IEEE 802.15.4 Standard platform solution. The
following list summarizes the features of the TWR-KW24D512 board.
— Provides compact reference design for device footprint and RF layout.
— Provides pre-designed MKW24D512 hardware (device and function).
— Provides access to the MKW24D512 set of GPIO/Alternate port functions.
— Provides MCU JTAG Cortex 20-pin (0.05”) JTAG debug port.
