TWR-K20D72M User’s Manual
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1
TWR-K20D72M Overview
The K20D72M Tower MCU Module (TWR-K20D72M) is a low-cost evaluation, demonstration and
development board, which features the Kinetis K20 72MHz low-power microcontroller. These devices
are based on the ARM® Cortex™-M4 architecture with USB 2.0 full-speed OTG controller. The TWR-
K20D72M microcontroller module can operate in stand-alone mode or as part of the Freescale Tower
System, a modular development platform that enables rapid prototyping and tool re-use through
reconfigurable hardware. Take your design to the next level and begin constructing your Tower
System today by visiting
www.freescale.com/tower
for additional Tower System microcontroller
modules and compatible peripherals.
1.1
Features
The following list summarizes the features of the K20D72M Tower MCU boards:
•
Tower compatible processor board
•
S08JM60 based Open Source BDM (OSBDM) circuit
•
Four (4) user-controlled status LEDs
•
Two (2) Capacitive Touch Pads and two (2) mechanical push buttons
•
Socket for Capacitive Touch Pad daughter board (Touch TWRPI)
•
Socket for Tower Plug-in (TWRPI, e.g. sensor board)
•
Standalone USB host and device function
•
Microphone and buzzer
•
Potentiometer
•
MMA8451Q three-axis accelerometer
•
Battery holder for 20mm lithium battery (e.g. 2032, 2025)
•
Board power select with 3.3V or 1.8V MCU operation
Figure 1.
Front side of TWR-K20D72M module
