TWR-MCF51QM Tower Module
User's Manual
Rev. 0
Freescale Semiconductor Inc. TWRMCF51QMUM
Table of Contents
1 TWR-MCF51QM and TWR-MCF51QM-KIT Overview .................................................................. 4
1.1 Contents .................................................................................................................................................................................. 4
1.2 Features .................................................................................................................................................................................. 5
1.3 Getting Started ..................................................................................................................................................................... 6
1.4 Reference Documents ....................................................................................................................................................... 6
2 Hardware Description ........................................................................................................................... 6
2.1 MCF51QM Microcontroller ............................................................................................................................................. 7
2.2 Clocking .................................................................................................................................................................................. 8
2.3 System Power ....................................................................................................................................................................... 8
2.4 Debug Interface ................................................................................................................................................................ 10
2.4.1 OSBDM ................................................................................................................................................................................................. 10
2.5 Infrared Port ...................................................................................................................................................................... 10
2.6 Accelerometer ................................................................................................................................................................... 11
2.7 Potentiometer, Pushbuttons, LEDs .......................................................................................................................... 11
2.8 Microphone ........................................................................................................................................................................ 11
2.9 Audio Output ..................................................................................................................................................................... 12
2.10 General Purpose Tower Plug-in (TWRPI) Socket ............................................................................................ 12
2.11 Touch Interface .............................................................................................................................................................. 13
2.12 Analog Terminal Block ................................................................................................................................................ 14
2.13 External Bus Interface – FlexBus ............................................................................................................................ 14
3 Jumper Table .......................................................................................................................................... 14
4 Input/Output Connectors and Pin Usage Table ......................................................................... 15
5 Tower Elevator Connections ............................................................................................................ 16
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List of Figures
Figure 1. Freescale Tower System Overview .............................................................................................. 4
Figure 2. Callouts on front side of the TWR-MCF51QM ............................................................................. 6
Figure 3. TWR-MCF51QM Block Diagram ................................................................................................... 7
Figure 4. Main Oscillator Input ................................................................................................................... 8
Figure 5. Low-power Oscillator Input ......................................................................................................... 8
Figure 6. Infrared Port Implementation ................................................................................................... 10
Figure 7. Accelerometer Circuit ................................................................................................................ 11
Figure 8. Microphone circuit ..................................................................................................................... 12
Figure 9. Audio output (DAC) circuit ......................................................................................................... 12
Figure 10. Analog Terminal Block ............................................................................................................. 14
List of Tables
Table 1. General Purpose TWRPI socket pinout ....................................................................................... 13
Table 2. Touch TWRPI socket pinout ........................................................................................................ 13
Table 3. TWR-MCF51QM Jumper Table .................................................................................................... 15
Table 4. I/O Connectors and Pin Usage Table........................................................................................... 15
Table 5. TWR-MCF51QM Primary Connector Pinout ............................................................................... 17
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Revision History
1 TWR-MCF51QM and TWR-MCF51QM-KIT Overview
The TWR-MCF51QM is a Tower Controller Module compatible with the Freescale Tower System. It can
function as a stand-alone, low-cost platform for the evaluation of the ColdFire+ MCF51QU, MCF51QH,
MCF51QF, and MCF51QM microcontroller (MCU) devices. The TWR-MCF51QM features the
MCF51QM, a ColdFire+ 32-bit microcontroller built on the Version 1 (V1) ColdFire® core and enabled
by innovative 90nm thin film storage (TFS) flash process technology with FlexMemory. The MCF51Qx
families offer a rich combination of additive peripherals including high-precision analog, hardware
encryption, an innovative touch sensing interface (TSI), and more.
The TWR-MCF51QM is available as a stand-alone product or as a kit (TWR-MCF51QM-KIT) with the
Tower Elevator Modules (TWR-ELEV) and the Tower Prototyping Module (TWR-PROTO). The TWRMCF51QM can also be combined with other Freescale Tower peripheral modules to create
development platforms for a wide variety of applications. Figure 1 provides an overview of the
Freescale Tower System.
Figure 1. Freescale Tower System Overview
1.1 Contents
The TWR-MCF51QM contents include:
TWR-MCF51QM board assembly
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3ft A to mini-B USB cable for debug interface and power
Interactive DVD with software installers and documentation
Quick Start Guide
The TWR-MCF51QM-KIT contains:
TWR-MCF51QM MCU module
TWR-ELEV – Primary and Secondary Elevator Modules
TWR-PROTO – Prototyping module
1.2 Features
Figure 2 shows the TWR-MCF51QM with some of the key features called out. The following list
summarizes the features of the TWR-MCF51QM Tower MCU Module:
Tower compatible microcontroller module
MCF51QM128VLH: MCF51QM with 128 Kbytes of flash in a 64 pin LQFP package
Terminal block for access to high-precision analog IO
Touch Tower Plug-in Socket
General purpose Tower Plug-in (TWRPI) socket
On-board debug circuit (OSBDM) with virtual serial port
Three axis accelerometer (MMA8451Q)
Two (2) user-controllable LEDs
Two (2) capacitive touch pads
One (1) user pushbutton switch
Infrared transmit and receive
Potentiometer
Microphone (ADC) and audio output (DAC)
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Figure 2. Callouts on front side of the TWR-MCF51QM
1.3 Getting Started
Follow the Quick Start Guide found printed in the TWR-MCF51QM box or the interactive DVD for the
list of recommended steps for getting started. Check for new or revised documentation on the tool
support page for the TWR-MCF51QM: http://www.freescale.com/TWR-MCF51QM.
1.4 Reference Documents
The documents listed below should be referenced for more information on the ColdFire+ devices,
Freescale Tower System, and the TWR-MCF51QM Controller Module. These can be found in the
documentation section of freescale.com/TWR-MCF51QM or freescale.com/coldfire+.
TWR-MCF51QM-QSG: Quick Start Guide
TWR-MCF51QM-SCH: Schematics
TWR-MCF51QM-PWA: Design Package
ColdFire+ Portfolio Product Brief
MCF51QM128 Reference Manual
Tower Configuration Tool
Tower Mechanical Drawing
2 Hardware Description
The TWR-MCF51QM is a Tower Controller Module featuring the MCF51QM128—a ColdFire+ based
microcontroller with high-precision analog in a 64 LQFP package. It is intended for use in the Freescale
Tower System but can operate stand-alone. An on-board debug circuit, OSBDM, provides a BDM
interface and a power supply input through a single USB mini-AB connector. Figure 3 shows a block
diagram of the TWR-MCF51QM. The following sections describe the hardware in more detail.
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