EUF-IND-T0871 New 32-bit ColdFire MCU - Freescale Semiconductor

May, 2010 

Freescale 32-bit ColdFire MCU solution eMeters 

Industry’s Most Robust, Secure MCU Solution for Meteorology 

Freescale, the Freescale logo, AltiVec, C-5, CodeTEST, CodeWarrior, ColdFire, C-Ware, mobileGT, PowerQUICC, StarCore, and Symphony are trademarks of Freescale Semiconductor, Inc., 

Reg. U.S. Pat. & Tm. Off. BeeKit, BeeStack, CoreNet, the Energy Efficient Solutions logo, Flexis, MXC, Platform in a Package, Processor Expert, QorIQ, QUICC Engine, SMARTMOS, TurboLink 

and VortiQa are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © 2010 Freescale Semiconductor, Inc. 

TM

1. Energy Metering – Trends & Factors 

2. Introduction to Energy Metering 

3. MCF51EM256 Highlights 

4. MCF51EM256 Poly-phase Reference Design 

5. Demos 

6. Summary 




2 

Agenda 

TM

Freescale Introduces Product Longevity Program 

► The embedded market needs long-term product support 

► Freescale has a longstanding track record of providing 

long-term production support for our products 

► Freescale is pleased to introduce a formal product 

longevity program for the market segments we serve 

• For the automotive and medical segments, Freescale will 

make a broad range of program devices available for a 

minimum of 15 years 

• For all other market segments in which Freescale 

participates, Freescale will make a broad range of devices 

available for a minimum of 10 years 

• Life cycles begin at the time of launch 

► A list of participating Freescale products is available at: 

www.freescale.com/productlongevity 




3 

TM

Market Trend Description Freescale’s Portfolio Evolution and 

Alignment 

Wired and 

Wireless 

Protocols 

Low Power 

Consumption 

Peripherals 

Integration 

Communication 

Within Home 

Emerging 

Applications that 

need interface to 

smart grids 

Smart Grids 

Infrastructure 

development 

Key Technology and Solution Trends in Metering 

Wired and Wireless communications are 

the key technologies used in today’s AMI 

and AMR designs 

With the shift to electrical gas and water 

meters, power consumption is a key 

decision factor due to battery life 

requirements and costs 

Focus on cost driving higher levels of 

integration 

Home/energy gateways are using existing 

infrastructure 

Intelligent appliances within the home, 

micro-grid generation (solar cells), Plug-in 

Hybrid vehicles require appropriate 

interface and measurement technologies 

Protocols emerging for control and 

communication of various components in 

Smart Grids 



and VortiQa are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © 2010 Freescale Semiconductor, Inc. 4 

PLM – SFSK, OFDM, MBUS (wired & wireless) 

ZigBee® SE profile, MC1322x; Freescale is focused 

developing NPIs for

Operation 

Center 

S08 

ColdFire® V1 

Commercial System (CRM) 

Centralized Remote Management System 

Interface Communication Software 

Gas 

Meter 

Water 

Meter 

Intranet 

))) 

))) 

Freescale Low Power Wireless Solutions 

Freescale Low Power Wireless Solutions 

Energy Gateway 

Cable, DSL 

Heat 

Meter 

S08 


Data Communication Center 

Freescale High-End Micro Processor (MPU) 


S08 


i.MX 

PowerQUICC® 

PLC or 

Wireless 

Electricity Meters 

Freescale Low Power Controllers (MCU) 

Freescale Low Power Controllers (MCU) 

Freescale Dedicated Controllers (MCU) 

Freescale Dedicated Controllers (MCU) 

S08 


LV Grid 




Freescale Solutions for Metering 

MV Grid 

5 

GPRS Communication 

Network 

MV/LV 

Substation 



i.MX 

PowerQUICC® 

TM

Energy Gateway 

i.MX25 

Low Cost Meter 

9RS08KA8 

Water Meter 

9S08LL16 

Simulation 

DEMOEM 

MCF51EM256 


9S08LA8 

PLM 

MC56F8025 

Concentrator 

i.MX27 

Gas Meter 

9S08LL16 


9S08LL/LG32 

OFDM PLM 

MCF51EM256 

Smart Energy 

(AMM) 

MPC8308 

G/Bit Enet 

RF 

PCI 

PLM 

1-Phase Meter 

MCF51EM256 

Integrated AFE 

Heat Meter 

9S08LL16 

802.15.4/Zigbee 

MC1322x 




Metering Solutions 

Overview 


9S08LH64 


HomePlug 

Reference 

Design 

1-Phase/3- 

Phase 

Meter 

MCF51EM256 


TM

1. Lower system cost 

2. Accurate Power Measurement (trend to Active) 

3. Energy calculations / tariff charging 

4. Grounding and noise issues 

5. Connectivity to multiple/increasing interfaces, IR, RF, PLM etc., to aid 

Smart Grid Systems 

6. Active & Robust Time Measurement 

7. Risk / increase in fraud / to improve robustness to attack 

8. Secure code update capability. 




The Challenges of Electricity 

Meter Makers 

7 

TM

80-pin & 100-pin LQFP packages 

► ColdFire CPU 




• 32-bit MAC (16x16 signed/unsigned) 

8 

MCF51EM256/128 

Metrology & RTC 

• 50MHz performance providing power calculation and 

communications capability 

► Secure & Robust 

• Independent iRTC 

• Dual Bank Flash with Swap Controller 

► Connectivity 

• AMR SPI & SCI with Open Drain System, provides a 5v 

interface to external AMR modems 

• Comparators with internal programmable reference (IR) 

linked directly to SCI 

• 288 Segment LCD Controller for HMI Display 

► Accurate Measurement 

• 4 x 16-bit high speed SAR ADC, 14.5ENOB 

• Programmable Delay Block 

► Low Power 

• The industry's benchmark low power implementation 

TM




MCF51EM256 Key Features for E-metering 

MCF51EM256 Customer needs 

Independent Robust Real Time Clock 

Fast & High Resolution ADC with 

Simultaneous Sampling 

Programmable Delay Block 

Secure Flash Update 

Connectivity (SPI, SCI, IIC) 

Multiple Clock Source 

Tariff management, Tamper time stamping, Time and Date 

keeping in standby modes 

Measurement up to 64 th harmonics, differential channel 

inputs, simultaneous current and voltage measurements. 

Measurement triggering, sensor phase shift compensation 

and reduction interrupt overhead. 

Reliable in field code/tariff table updates without stopping 

measurement and energy counting 

Communication peripherals supporting IR communication and 

easy interfacing to 3.3V and/or 5V logic. 

Enables MCU to function with loss of crystal(s) clock. 

32-bit, 50MHz Coldfire V1 core with MAC Single core to perform calculations, meter management and 

communications. 

Professional Development Tools Simplicity, robustness, development tools, FreeMaster 

9 

TM

tc_osc_clk_in 

config_data 

rtc_int_b 

rtc_alarm 

StandBy 

RAM 

IRT C _S YN 

Register Space 

Write Protect 

Stae Machine 

Block Diagram 

buffer 1 b0 

Clock 

Compensation 

Prescaler 

bal_ 1hz_ clk_ in 

rtc_osc_buf_clk 

Time, Calendar 

& Stopwatch 

Counters 

IPS B us 

Decode 

StandBy 

Isolation 

RTC Control 

cpu_ high_voltage IP S_ Interface rtc_standby_ b 

Alarm 

Matching 

Counter Control 

(with Day Light 

Saving Control) 

Tamper 

Detection 

Tamper Detection Unit 

Non volatile 32-bit Counter 

rtc_osc_out_clk 

rtc_off_chip_clk 

rtc_cal_out 

rtc_por 

rtc_supply 

rtc_ground 

tamper 

detec t 

battery 

disconnect 




Independent Robust Real Time Clock 

� Full clock – hour, minutes and seconds with option for 

storing values in BCD or binary format 

� Calendaring – day, month, year and day of the week 

with option for storing values in BCD or binary format 

� Auto adjustment for day light saving with user defined 

parameters 

� Automatic month and leap year adjustment 

� Programmable alarm with interrupt - output from IRTC in 

case MCU wants to use it as a wakeup event 

� Seven periodic interrupts 

� Minute countdown timer with minute resolution 

� 32.768 kHz input clock with option to output the clock for 

use in the MCU’s ICS 

� Hardware compensation to compensate 1 Hz clock 

against frequency variations in oscillator clock due to 

temperature or crystal characteristics (correction in range 

from ±.12ppm up to ±3900ppm). 

� Reset to the IRTC block is generated only when both 

battery supply and CPU power are removed and either is 

powered up 

� Battery operation (standby mode) ensures seamless 

IRTC operation when CPU power is removed 

� Tamper detection to detect illegal access into the 

system (time stamp stored on tamper event) 

� Non volatile 32-bit Counter (can be used for energy 

counting) 

� 32 bytes of standby RAM 

� Supply current 1.5µA (powered from VBAT) 10 

TM

ADHW TS A 

ADHW TS n 

ADHWT 

Compare true 

Interrupt 

MCU S TOP 

DADP0 

DADP 3 

AD4 

AD23 

TempP 

DADM0 

DADM3 

TempM 

VREFH 

VAL TH 

VBGH 

VREFL 

VALTL 

VBGL 

1 

ADCHn 

AIE Nn 

COCOn 

VREFSH 

Conversion 

Trigger 

Control 

ADVINP 

ADVINM 

VREFSL 

Block Diagram 

complete 

trigger 

initialize 

DDIFFn 

sample 

ADCO 

MODE 

convert 

ADTRG 

Control Registers (ADCSC2, ADCCFG1, ADCCFG2) 

Control 

Sequencer 

transfer 

Offset 

Subtractor 

Averager 

Formatting 

Compare 

Logic 

CV1 CV2 

ADCCV1, ADCCV2 

ADLSMP 

ADLPC 

abort 

SAR 

Converter 

transfer 

ADCK 

ADCSC1A 

ADCSC1n 

ADIV 

Clock 

Divide 

ADCOFS 

AVGE ,AVGS 

MODE, DIFFn 

ACFE 

ACFGT,ACREN 

Compare true 




ADICLK 

PG,MG 

CLPx 

CLMx 

ADACKEN 

/2 

16-Bit SAR Analog-to-Digital Converter 

Asynch. 

Clk. Gen 

ADCxG 

ADCCLPx 

ADCCLMx 

CAL CALF 

ADCSCs 

ADCCFG1,2 

ADCRHA:ADCRLA 

1 

CFS 

ADCRHn:ADCRLn 

Calibration 

ADCSC2 

ADACK 

Bus Clock 

ALTCLK 

� Linear successive approximation converter with up to 16-bit 

resolution 

� Up to 4 pairs of differential and 24 single-ended external 

analog inputs 

� ADC clock range is 1-8MHz, so conversion times range from 

2.7us to 1.9ms with a bus clock of 25MHz. 

� Self-Calibration mode (offset and gain calibration) 

� Hardware average function to increase resolution (up to 32x) 

� Selectable voltage reference, Internal, External, or Alternate 

� Dual result registers - two sequential conversions 

� Output Modes: Differential 16-bit, 13-bit, 11-bit and 9-bit modes, or 

Single-ended 16-bit, 12-bit, 10-bit and 8-bit modes 

� Output formatted in 2’s complement 16b sign extended for 

differential modes 

� Output in right-justified unsigned format for single-ended 

� Single or continuous conversion (automatic return to idle after 

single conversion) 

� Configurable sample time and conversion speed/power 

� Conversion complete / Hardware average complete flag and 

interrupt 

� Input clock selectable from up to four sources 

� Operation in wait or stop3 modes for lower noise operation 

� Asynchronous clock source for lower noise operation with option 

to output the clock 

� Selectable asynchronous hardware conversion trigger with 

hardware channel select 

� Automatic compare with interrupt for less-than, greater-than or 

equal-to, within range, or out-of-range, programmable value 

� Integrated Temperature sensor 

11 

TM

Trigger 

Ch1 

Ch2 

PDB 

Ch3 

Ch4 

PreTriggerA 

PreTriggerB 

TriggerA 

TriggerB 

COCOA 

COCOB 

PreTriggerA 

PreTriggerB 

TriggerA 

TriggerB 

COCOA 

COCOB 

PreTriggerA 

PreTriggerB 

TriggerA 

TriggerB 

COCOA 

COCOB 

PreTriggerA 

PreTriggerB 

TriggerA 

TriggerB 

COCOA 

COCOB 

Programmable Delay Block – Usage in Application 

PDB - ADC Integration 

Result A 

Result B 

ADC1 

Result A 

Result B 

ADC2 

Result A 

Result B 

ADC3 

Result A 

Result B 

ADC4 

DADP1 

DADM1 

AD3 

AD4 

Reg. A: Live 1 CT 

Reg. B: Live 1 Voltage 

Reg. C: auxiliary 1. 

DADP2 

DADM2 Reg. A: Live 2 CT 

AD5 Reg. B: Live 2 Voltage 

DADP0 

DADM0 Reg. A: Live 3 CT 

AD6 Reg. B: Live 3 Voltage 

DADP3 

DADM3 Reg. A: Neutral CT 

AD7 Reg. B: auxiliary 2. 

VREF0 

VREFH 

VREFL 

Bandgap 

Temp Sensor 




� Significantly reduces 

interrupt loading! 

� ADC has two result registers 

� One interrupt per 

measurement period 

Start possible for second ADC (Reg. B) 

Duration of the first ADC conversion (Reg. A) 

12 

TM

► Measurement period 

• Allows the precise definition of the measurement period 

• Repeatable 

► Granularity 

• The PDB resolution is at the bus speed, ie at up to 25MHz 

• Granularity as small as 40nS within the measurement period 

► Repeatable and precise sampling 

• The PDB ensures samples are taken at the correct time relative to the measurement period thus improving overall 

accuracy of energy calculations 

► Precision periodic measurement period 

• The measurement period is the inverse of the number of samples per cycle times the line freq, IE sampling period is 1 / 

(samples per cycle * line freq) 

• E.G., 50Hz Europe is 1/(64*50)=> 312.5uS, 60Hz US is 1/(64*60)=>260.4uS 

► Variation in line frequency 

• As the line frequency changes the PDB can easily be reprogrammed to take into account the line frequency thereby 

maintaining the power calculation algorithms are operating over the correct energy period (seconds) 

► Environmental compensation 

• By measuring ambient temperature and load current the correct phase lag/lead error of the sensor (eg CT or shunt) can 

be compensated for 

► Digital compensation 

• Precision compensation through timing removes need for external RC filter for low load current compensation 

• Digital timing alleviates the impact of capacitor ageing and thus extends the operational life of the meter before requiring 

re-calibration 

► Low processor overhead 

• The PDB initiates measurements of up to 2 channels on up to 4 ADC's without consuming any processor time 




13 

PDB Benefits: 

Technical Detail 

• The PDB interrupts the processor AFTER the sampling of all voltage and current measurements in the measurement 

period significantly reducing interrupts associated with traditional approaches, eg 3-phase measurement of 4 current and 

3 voltage measurements results in 3840(64*60) rather than 26880(64*60*7) interrupts for 64 samples/cycle @ 60Hz 

TM

256K 

Block 1 

128K 

Block 0 

0 

Update 

Application 

space 

Comms Routine - copy 

Power calculation - copy 

Interrupt Vectors - copy 

Application 

Flash Selector = 0 

Secure Flash Update – New Firmware Update 

Update method - 1 

1. Code in block 0 writes new application 

to block 1 [left diagram] 

2. AFTER new code validated, flash 

selector set to 0 (swapping blocks) 

3. New/updated code in block 1 is 

executed in low address space [right 

diagram] 

• New application can replicate itself into block 0 

for further fault tolerance 

• Swapping of flash blocks is controlled and 

maintained over power cycles 




14 

14 

256K 

128K 

Old 

Application 

Comms Routine 

Power calculation 

Interrupt Vectors 

Updated 

Application 

Notes 

Comms Routine 


• 

• 

After MCU POR & RTC POR, flash selector = 0 

Flash selector is: 


• 

• 

Powered by RTC power supply 

MCU reset does NOT change state 

0 

• Power is maintained through MCU power cycles 

• Only upper flash block is erased / written 

Non volatile • 

• 

Software controlled switch between blocks, instantaneous (~ 40nS) 

Flash can be used as a single code space 

Non volatile 

Block 0 

Block 1 

Comms Routine - copy 

Power calculation - copy 

Interrupt Vectors - copy 


TM

256K 

Block 1 

128K 

Block 0 

0 

128K 

Emulated 

EE 2 

Application 

Comms Routine 




Non volatile 




Secure Flash Update – EEPROM Emulation 

The second flash block can 

be used exclusively for 

data storage if firmware 

updates are not required by 

the application. 

15 

15 

TM

SCI Modules 

� three modules on all packages 

� wakeup from stop3 on Rx edge. 

� SCI2: Tx pin in open drain mode to support 

interfacing to AMR (eg PLM or RF) operating at 5V 

� IR communication support 

� SCI1 and SCI2: Tx pins can be modulated with 

timer outputs for use with IR interfaces 

(frequency determined by the timer) 

� SCI1 and SCI2: Rx pins can be routed from a 

programmable comparator (opto receiver). 

IR Receiver Routing via Comparator 

IR Transmitter Routing with Pulsed Output 




MCF51EM256 AMR Specific Connectivity 

SPI Modules 

� three modules on 100-pin LQFP package (two 

modules on 80-pin LQPF package) 

� with full-duplex or single-wire bidirectional; doublebuffered 

transmit and receive; master or slave mode; 

MSB-first or LSB-first shifting 

� SPI1: with 32-bit FIFO buffer, 16-bit or 8-bit data 

transfers 

� SPI2 and SPI3: standard SPI with no FIFO and 8-bit 

data transfer 

� SPI3: open drain outputs on SCLK and (MISO OR 

MOSI). These, coupled with off-chip pull-up resistors, 

allow half-duplex interface to a 5 V SPI interface. 

SPI Master 5V PLC / RF Interfacing 

SPI Slave 5V PLC / RF Interfacing 

16 

TM

ICSIRCLK 

Clock Check 

& Select 

ICS 

OSCOUT2 

To LCD 

oscillator control 

Block Diagram 

XTAL2 

EXTAL2 

XTAL1 

XOSC2 XOSC1 

OSCOUT1 

EXTAL1 

Multiple Clock Sources with Fail Safe Operation 

Separate Power Domain 

Independent 

RTC 

3V 

V BAT 

VBAT 




� Device powers-up from internal RC oscillator 

after reset. 

� Clock Options: 

� External 32.768 kHz crystal (XTAL1-EXTAL1) 

� External 1-16 MHz crystal (XTAL2-EXTAL2) 

� Internal 32 kHz RC oscillator (max. +/- 2% total 

deviation of trimmed DCO output frequency 

over voltage and temperature range) 

� Internal reference clock has 9 trim bits available 

� Clock Check & Select Block checking health of 

3-possible clock sources using self test that can 

run at any time: 

� Three 8-bit registers counts 3-possible clock 

sources for the same amount of time 

� When any counter hits the maximum value of 

0xFF the test is terminated 

� Software can then compare the three registers 

to obtain a crude (~1.2%) measure of how well 

these three frequencies correlate. 

� Internal Clock Source (ICS) contains Frequencylocked 

loop (FLL) block which drives processor core 

speed up to 50.33 MHz (peripherals operate at half 

of this speed) at 3.6 V to 2.5 V and 20 MHz at 2.5 V 

to 1.8 V 

17 

17 

TM

MCF51EM256 Performance with Algorithms used in Metering 

► Implemented mostly in “C”: 

• Voltage and Current RMS values 

• Active Energy, Active Power, Apparent 

Power, Reactive Power and Power 

Factor 

• DFT (Discrete Fourier Transform) 

• THD (Total Harmonic Distortion) 




� Documentation and 

Code Available 

For more information refer to: 

http://www.freescale.com/files/32bit/doc/app_ 

note/AN3896.pdf 

18 

18 

TM

Poly Phase Reference Design based on MCF51EM256 

Designed and tested against: 

� IEC 62053-22 

International Energy Metering Specification, 

class 0.5 (or better) for active energy 

� IEC 62053-23 

International Energy Metering Specification, 

class 2 for reactive energy 

� IEC 62056-21 

International Energy Metering data exchange Specification 

� IEC 62053-22, IEC 62053-23, IEC 62052-11 

Electro Static Discharge (ESD), tested per IEC 61000-4 

Voltage and Current capability 

US ANSI C12 

- Full scale voltage: 120V±20% 

- Full scale Current: 15 ~ 100 A 




Voltage and Current capability 

Europe/ASIA IEC 62053 

- Full scale voltage: 230V±10% 

- Full scale Current: 10 ~ 60A 

19 

TM


Current is sensed using current transformer or shunt resistor or hall sensors. 

Voltage is sensed using potential divider circuit or voltage transformer. Sensed 

voltage and current signals are multiplied and integrated over period of time to 

obtain energy and it is stored in a register. 

The following items will supplied to the user for developing the Energy Meter using Freescale MCF51EM256 controller: 

Reference Energy Meter, Software, Design document, Source Code, Documentation, Hardware detailed design document 

(excel format), BOM, Schematics, wiring diagram and EMI/EMC test reports of reference Energy Meter. 




20 

TM

Voltage L1 

L2 

L3 

Flash and Remote Update 

• Robust Flash Update 

• Dual Flash Architecture 

L1 in 

L1 out 

L2 in 

L2 out 

L3 in 

L3 out 

N in 

N out 

CT 

CT 

CT 

CT 

1-16MHz 

Communication 

• AMR SPI and AMR SCI 

• High drive Output on SCI (for IR) 

• Combination of SCI and Comparator 

support Opto receiver 

PDB for ADC Trigger 

• Programmable Delay block to trigger ADC. 

• Allows Simultaneous triggering of voltage 

and current channel by adjusting the delay 

• Allows phase compensation from 0 to 

21 

21 

7 

degrees 




MCF51EM256 - Three-Phase Electricity Meter 

LCD 288 segments (8 x 36) 

Vref 

x10 

x100 

x10 

x100 

x10 

x100 

x10 

x100 

ADC 

44 

Dual 

Flash 

3v 

RTC 

32 KHz 

IRTC and Security 

• RTC Clock Compensation(0.119 PPM to 3906 PPM) 

• Write protection 

• Time stamping Tamper events 

• Protection against Battery Removal 

• Monotonic Counter 

• Low Voltage Protection 

• Dedicated Tamper Input 

• RTC current consumption (Standby) : around 1.5uA 

GPIO On Led 

SCI Opto (diag) 

SCI 

SPI/IIC 

ADC 

Opto (rdr) 

EE2 

Battery 

SPI/IIC MRAM 

SCI/SPI 

ZigBee® 

SCI/SPI 

RF 

ADC 

monitor 

SPI/SCI 

PLM 

GPIO/ADC 

tamper 

ADC 

ADC 

GPIO 

GPIO 

GPIO 

Fault Tolerance 

• Fail Safe Operation 

• Independent WDOG 

• On-chip comparator for Zero-crossing 

• Hardware CRC accelerator 

Energy output pulse 

0.1 kWhr/pulse 

TM


Documents: 

� Poly-Phase Electricity Meter Reference Design.pdf 

Design Reference Manual Devices Supported: MCF51EM256 

� System Considerations Overview: 

� Pin Mapping 

� Power Calculation 

� ... 

� AC to DC Converter (ENOB) 

� CodeWarrior Project (CW v6.2, SW) 

� MCF51EM256110RDDS (MCF51EM256-based Poly Phase Energy 

Meter Reference Design 110V Technical Specifications).pdf 

Reference Design Data Sheet 

� MCF51EM256220RDDS (MCF51EM256-based Poly Phase Energy 

Meter Reference Design 220V Technical Specifications).pdf 

Reference Design Data Sheet 




22 

TM


Freescale Reference Energy Meter can be connected 

to one of the following three types of input system: 

� 3Ф – 4 Wire System 



All the above analog signals are fed to ADC and ADC is 

sampling these signals synchronously 128 times per cycle 

(samples/cycle). 




23 

TM





24 

TM

MCF51EM256 Poly-Phase Electricity Meter – Software Modules 




25 

TM

CodeWarrior Project (CW v6.2, SW) 

CodeWarrior Development Studio 




26 

Easy to use BDM 

interface including 8byte 

backdoor key for BDM 

access/security 

TM





27 

TM





28 

TM





29 

TM


AN3896 

MCF51EM256 Performance Assessment with Algorithms used in Metering Applications (with 

software) 

This application note has the objective to demonstrate the implementation of the following 

algorithms used in metering applications using Freescale MCF51EM256. 

Square Root, Voltage and Current RMS values, Active Energy, Active Power, Apparent Power, Reactive Power 

and Power Factor, DFT (Discrete Fourier Transform), THD (Total Harmonic Distortion) 

AN3827 

Differences between the Controller Continuum ADC modules:The 12-bit ADC vs. the 

MCF51EM256 16-bit ADC 

AN3938 

Using the MCF51EM family for Infrared Communication 

AN3796 

LCD Driver specification 

AN3493 

ADC16 Calibration Procedure and Programmable Delay Block Synchronization for MCF51EM256 




30 

TM

Design Consideraions - ENOB, Pin-Mapping, Power, Crystal, ... 




31 

TM

Design Consideraions - ENOB, Pin-Mapping, Power, Crystal, ... 




32 

TM

Hardware - GBR Data's, Schematic, BOM, ... 




33 

TM





34 

TM





35 

TM





36 

TM





37 

TM


- Technical Specification 




38 

TM





39 

TM

Tool Chain 




TM

• CodeWarrior Development Studio offers tools for every stage of the project 

Project 

Wizard 

• Device 

• Language 

• Default 

Connection 

• Add Files 

• RAD 

• C/C++ 

Options 

Project 

Creation 

Important 

Choices 

are Made 

CodeWarrior Development Studio for Microcontrollers 

Integrated Development Environment / Project Manager 

Device 

Knowledge 

Database 

Device 

Initialization 

Processor 

Expert 

H/W-Specific 

Code Generation 

Shortened 

Learning 

Curve 

Editor 

Compiler 

Assembler 

Linker 

Application-Specific 

Code Development 

User-Friendly 

Performance 

Test/Debug 

and Validation 




ISS 

Debugger 

Multi-Target 

Interface 

Multi-H/W Capable 

Enhanced BDM 

Flash Programming 

41 

Simple 

Profiler 

Multilink 

H/W–S/W 

Integration 

Revision 

Control 

and 

Configuration 

Management 

Product Life 

Support/Update 

Revision Control 

Quality Control 

TM

Special Edition Features: 

• New Project Wizard 

• MCU Change Wizard 

• Unlimited assembler (absolute, relocatable, 

mixed and in-line) for HC(S)08, RS08, 

ColdFire V1 microcontrollers 

• Highly optimized ANSI C compilers and C 

source level debugger, limited up to: 

• HC(S)08 – 32K 

• ColdFire V1 – 64K 

• Emulator-like complex debug capability for 

HCS08 and ColdFire V1 microcontrollers 

• Fast Flash programming: 

• HC08: Via MON08 

• HCS08, RS08, ColdFire V1: Via BDM 

• Full-chip Simulator for HC(S)08/RS08 

• UNIS Device Initialization tool to generate 

HC(S)08, RS08, ColdFire V1 CPU and 

peripheral initialization code 

• UNIS Processor Expert with components 

for HC(S)08 and ColdFire V1 CPUs and 

most on-chip peripherals 

• Unlimited files in a project 




CodeWarrior Special Edition; It’s for Free!! 

Limited up to 32K / 64K Compiler 

Licensing: 

• Key is permanent, free of charge and 

automatically installed with the software 

• 30 day Professional Evaluation license. 

After 30 days, operates at Special Edition 

level 

Support: 

• 1 year support included 

C-Compiler Upgrade: 

• One upgrade package, which includes 

• HC(S)08 – 64K 

• ColdFire V1 – 128K 

Availability: 

• On WEB – Now 

• LDC (CWX-HXX-SE) – Now 

42 

TM

► Standard Edition 

All Features of Special Edition Plus: 

• Unlimited C Compilers and Debugger for 

HC(S)08 and ColdFire V1 microcontrollers 

• Unlimited Data Visualization 

• Access to Unis’ software and external 

peripheral beans 

► Technical Support: 

• One year support included 

► Licensing: 

• Registration on the Web for a permanent 

license key 




Standard and Professional Editions 

Professional Edition 

All the Features of the Standard Edition Plus: 

• C++ compiler/debugger for HC(S)08 and ColdFire 

V1 microcontrollers 

• Code coverage 

• Profile analysis 

• Encryption support 

• Bean Wizard to build a software library that can 

re-target to any HC(S)08, HC(S)12, ColdFire V1 

or DSC device 

• Advanced Processor Expert beans 

• OSEK kernel awareness 

• Session record and replay 

• PC-lint plug-in 

Technical Support: 

• One year support included 

Licensing: 

• Registration on the Web for a permanent license 

key 

43 

TM

Power Line Modem Reference Design based on 56F8025 

This PLM modem uses the frequency band 'A' of the CENELEC directive (frequency band 3-95kHz) reserved for energy 

providers (not consumer home networks). The PLM application is based on the Freescale DSP56F8025/23 (Hawk V2) 

family. 

S-FSK (Spread FSK) modulation is used for communication, and both S-FSK modulation/demodulation routines are fully 

handled by the DSC software. 

Power Line Modem baud rate is 2400bps and data consistency is secured with FEC (Forward Error Correction Reed- 

Solomon codes with erasure) methods. Modems use the 'repeating' technique to reach larger distances in harsh 

environment (targeting typically 500-1000m from the central node). 

57.6kHz 

38.4kHz 




44 

TM




45 

OFDM over PLC 

►Target: CENELEC A-band {9-95kHz}, possibly 32 sub-carriers 16QAM @ 

2400Hz spacing 

► 

► 

First rough estimate: 

• raw data rate: 250-300kbps, max. real data rate 25-30kbps 

• CPU core power to be explored, heavy IFFT/FFT computations, 10-30MMACs 

expected, MAC unit required, modulo calculations, bit reverse addressing needed 

• receive sample rate 500kSamples/s (A/D with DMA (or equivalent) reqd’) 

• transmit sample rate 500kSamples/s (D/A with DMA (or equivalent) reqd’) 

• RAM needs to be explored, expected several 20-30kB, for buffers, FFT, etc. 

TM

www.freescale.com/ProductLongevity 

Freescale Product Longevity 




46 

TM




Freescale’s Value to the Metering Market 

► Standard products can help solve key customer problems for metering systems 

• Maximize battery life � ultra low power 8bit & 32bit MCUs 

• iRTC for accurate calendaring and fraud prevention 

• Reliable readings � fast & accurate on-chip ADCs 

• Integration � memory, LCD ctrl, analog 

• Communication I/F � ZigBee®, IEEE® 802.15.4, and Ethernet 

• Apart of Standards � IEEE® 802.15.4, ZigBee® Alliance, PRIME (PLC), HomePlug ?? 

► Commitment to the market with products and solutions that have characteristics 

important to the metering segment: 

• Longevity of product available 

• Quality 

► Breath of products spanning from RF to Sensors to MCUs to MPUs 

► Mix & match IP allowing specific metering solutions 

► Focus on Enablement 

• 1 stop shop, CodeWarrior, Turnkey Ref Design + MCU to help Reduce product development cost/time 

• Improve time-to-market and time-in-market 

47 

TM




TM

EUF-IND-T0871 New 32-bit ColdFire MCU - Freescale Semiconductor

Create successful ePaper yourself

Delete template?

Save as template?