NXP Semiconductors TWR-K64F120M User Manual

Freescale Semiconductor

Doc Number: TWRK64F120MUG

User’s Guide

TWR-K64F120M Tower Module

User’s Guide

by Freescale Semiconductor, Inc.

Rev. B, 03/2014

1 TWR-K64F120M

The TWR-K64F120M microcontroller module is designed
to work in either a 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. For
TWR-K64F120M-specific information and updates visit

www.freescale.com/TWR-K64F120M.

Contents

1. TWR-K64F120M . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2. Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

3. TWR-K64F120M Features . . . . . . . . . . . . . . . . . . . . . 2

4. Get to Know the TWR-K64F120M . . . . . . . . . . . . . . 3

5. Reference Documents . . . . . . . . . . . . . . . . . . . . . . . . . 4

6. Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . 4

7. Useful links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

© 2014 Freescale Semiconductor, Inc. All rights reserved.

Contents

2Contents

The TWR-K64F120M includes:

• TWR-K64F120M for board assembly

• Quick Start Guide

• USB A to mini-B cable for debug interface and power

• CR2032 coin cell battery for VBAT power supply

• USB A to micro-B cable for MK64FN1M0VMD12 USB interface

3 TWR-K64F120M Features

• Τower-compatible microcontroller module

• MK64FN1M0VMD12 MCU (120 MHz, 1024 KB Flash, 256 KB RAM, low power, 144
MAPBGA package)

• Dual-role USB interface with Micro-AB USB connector

• General purpose Tower Plugin (TWRPI) socket

TWR-K64F120M Tower Module, Rev. B

2 Freescale Semiconductor

Get to know the TWR-K64F120M

VBAT Options

50 MHz OSC
Enable/Disable

Regulator
Option
Selector

General-purpose

TWRPI Plug-in

Accelerometer

K64 JTAG

SW1

1588

SW3

LEDs

VBAT Options

50 MHz OSC
Enable/Disable

Regulator Option
Selector

Board Power
Indicator

Potentiometer

K64 Micro-USB

RESET

OpenSDA

Debug

Power/OpenSDA

Mini-USB

• On-board debug circuit: MK20DX128VM5 open (OpenSDA) with virtual serial port

• Three axis accelerometer (MMA8451Q)

• Four user controllable LEDs

• Two user pushbutton switches for GPIO interrupts

• One user pushbutton switch for MK64FN1M0VMD12 or MK20DX128VFM5 reset

• One Potentiometer

• Independent, battery-operated power supply for Real Time Clock (RTC) and tamper detection
modules

• SD card slot

4 Get to know the TWR-K64F120M

Figure 1. Front side of TWR-K64F120M module (TWRPI devices not shown)

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TWR-K64F120M Tower Module, Rev. B

Reference Documents

SD Card
Receptacle

Potentiometer

Battery Receptacle

Figure 2. Back side of TWR-K64F120M

5 Reference Documents

The documents listed below should be referenced for more information on the Kinetis family, Tower
System, and MCU Modules. These can be found in the documentation section of

http://www.freescale.com/kinetis

• TWR-K64F120M-SCH: Schematics

• TWR-K64F120M-PWA: Design Package

• K64P144M120SF5RM: Reference Manual

• Tower Configuration Tool

• Tower Mechanical Drawing

6 Hardware description

The TWR-K64F120M is a Tower MCU Module featuring the MK64FN1M0VMD12—a Kinetis
microcontroller in a 144 MAPBGA featuring a USB 2.0 full speed on-the-go (OTG) controller, a 10/100
Ethernet MAC with IEEE1588, hardware encryption, and tamper detection coupled with a secure real-time
clock on an independent battery supply. It is intended for use in the Freescale Tower System but can also
operate alone. The on-board OpenSDA debug circuit provides a Serial Debug interface and a power supply
input through a single mini-USB connector.

4 Freescale Semiconductor

TWR-K64F120M Tower Module, Rev. B

6.1 Block Diagram

The block diagram of the TWR-K64F120M board is presented in Figure 3:

Hardware description

Figure 3. Block diagram

6.2 Microntroller

The TWR-K64F120M features the MK64FN1M0VMD12 MCU. This 120 MHz microcontroller is part of
the Kinetis K6x family and is implemented in a 144 MAPBGA package. The following table notes some
of the features of the MK64FN1M0VMD12 MCU.

Table 1. Features of MK64FN1M0VMD12

Feature Description

Ultra low power – 11 low-power modes with power and clock gating for optimal peripheral activity and recovery

times.
– Full memory and analog operation down to 1.71 V for extended battery life
– Low-leakage wake-up unit with up to six internal modules and sixteen pins as wake-up sources
in low-leakage stop (LLS)/very low-leakage stop (VLLS) modes
– Low-power timer for continual system operation in reduced power states

Flash and SRAM – 1024KB flash featuring fast access times, high reliability, and four levels of security protection

– 256 KB of SRAM
– No user or system intervention to complete programming and erase functions and full operation
down to 1.71 V

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TWR-K64F120M Tower Module, Rev. B