Freescale Semiconductor, Inc.
User’s Guide
© 2014 Freescale Semiconductor, Inc.
1
TWR-KV31F120M
The TWR-KV31F120M microcontroller module is
designed to work in standalone mode or as part of
the Freescale Tower system, a modular development
platform that enables rapid prototyping and tool
reuse 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.
Document Number: TWRKV31F120MUG
Rev. 0, 03/2014
Contents
1. TWR-KV31F120M . . . . . . . . . . . . . . . . . 1
2. Contents . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3. TWR-KV31F120M features . . . . . . . . . . . 3
4. Get to know the TWR-KV31F120M . . . . 3
5. Reference documents . . . . . . . . . . . . . . . . 4
6. Hardware description . . . . . . . . . . . . . . . . 4
6.1.Microcontroller . . . . . . . . . . . . . . . . . . 5
6.2.Clocking . . . . . . . . . . . . . . . . . . . . . . . 6
6.3.System power . . . . . . . . . . . . . . . . . . . 6
6.4.Debug interface . . . . . . . . . . . . . . . . . 6
6.5.Accelerometer plus Magnetometer . . 7
6.6.Potentiometer, pushbuttons, and LEDs 8
6.7.General Purpose Tower Plug-in (TWRPI) socket
8
7. TWR-KV31F120M jumper options and headers 9
8. Useful links . . . . . . . . . . . . . . . . . . . . . . . 11
9. Revision history . . . . . . . . . . . . . . . . . . . 12
TWR-KV31F120M Tower Module
User’s Guide
