Freescale Semiconductor, Inc.
User’s Guide
© 2014 Freescale Semiconductor, Inc. All rights reserved.
1
TWR-KL43Z
The TWR-KL43Z microcontroller module is designed to
work either in standalone 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
Freescale.com/Tower for additional Tower System MCU
modules and compatible peripherals. For TWR-KL43Z
specific information and updates, visit
Freescale.com/TWR-KL43Z.
Document Number: TWRKL43ZUG
Rev. 1, 08/2014
Contents
1. TWR-KL43Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2. Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3. TWR-KL43Z features . . . . . . . . . . . . . . . . . . . . . . . . . 2
4. Get to know the TWR-KL43Z . . . . . . . . . . . . . . . . . . 3
5. Reference documents . . . . . . . . . . . . . . . . . . . . . . . . . 3
6. Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . 4
6.1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6.2. Microcontroller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6.3. Clocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.4. System power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.5. Real-time clock (RTC) . . . . . . . . . . . . . . . . . . . . . . . . 6
6.6. Debug interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.7. UART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6.8. Infrared port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6.9. Accelerometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6.10. General Purpose Tower Plug-in (TWRPI) socket . . . . 8
6.11. Potentiometer, pushbuttons, LEDs . . . . . . . . . . . . . . . 9
6.12. SLCD TWRPI interface . . . . . . . . . . . . . . . . . . . . . . . 9
6.13. USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7. TWR-KL43Z jumper options . . . . . . . . . . . . . . . . . . 10
8. Useful links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
9. Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
TWR-KL43Z Tower Module
User’s Guide
