EFM32 ...the worlds most energy friendly microcontrollers How to - - PowerPoint PPT Presentation
EFM32 ...the worlds most energy friendly microcontrollers How to use this presentation Click on the desired EFM32 series Click on a peripheral you Click on icon to get back want details on to block diagram 31-Aug-11 2
...the world’s most energy friendly microcontrollers
How to use this presentation
Click on the desired EFM32 series
… the world’s most energy friendly microcontrollers and radios
31-Aug-11
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Click on a peripheral you want details on Click on icon to get back to block diagram
4x battery lifetime…
… the world’s most energy friendly microcontrollers and radios
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… versus any other 8, 16 or 32-bit microcontroller
EFM32 – a truly unique microcontroller
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10 Factors That Make EFM32 The World’s Most Energy Friendly Microcontroller The World’s Most Energy Friendly Microcontroller
Battery life vs energy consumption
Power Active Mode Power
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Time Sleep Mode Power Total energy consumption = Active + Sleep mode energy
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µA/MHz @3V @1 MHz µA/MHz @3V @25 MHz µA/MHz @3V @32 MHz
220 160 160
Cortex-M3 DMIPS/MHZ µA/MHz @3V @25 MHz
1.25 160
Wake-up time from sleep modes
2 µs
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Shutoff current @ 3V Deep Sleep @ 3V
RAM and CPU retained
20 nA 900 nA Operation while CPU sleeps Extensive DMA Support All peripherals can
Direct peripheral interconnection system Boosting the value of autonomous operation Highly configurable
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Highly configurable
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EM0 “Run Mode”: 160 µA/MHz EM1 “Sleep Mode”: 45 µA/MHz EM2 “Deep Sleep Mode”: 900 nA
RTC, Power-on Reset, Brown-Out Detection RAM and CPU retained
Analog to Digital Converter
12-bit @ 1 MSamples/s: 350 µA 6-bit @ 1 kSamples/s: 500 nA
Low Energy UART
Full UART with 32 kHz clock 150 nA @ 9600 baud/s
Autonomous sensor monitoring in deep sleep Up to 16 sensors simultaneously Highly configurable
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EM3 “Stop Mode”: 600 nA
Power-on Reset, Brown-Out Detection RAM & CPU retained
EM4“Shutoff Mode”: 20 nA
Power-on Reset, Pin/GPIO Reset
LCD Controller
Directly driving up to 8x36 segment LCDs Boost/Contrast/Animation/Blink 550 nA for 4x40
Highly configurable
Resistive, Capacitive, Inductive
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The energyAware Profiler is an energy debugging tool that use Advanced Energy Monitoring (AEM) data available from the development tools to perform real-time profiling and debugging of the
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and debugging of the associated object code.
Simplicity Studio
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World class simplicity One-click accessibility Always updated
EFM32 + Cortex-M3 Ecosystem
IDE/COMPILER DEBUG ADAPTERS
ABATRON COOCOX HITEX KEIL OLIMEX SEGGER IAR SYSTEMS LAUTERBACH
PARTNERS ARM KEIL MICRIUM SEGGER
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IDE/COMPILER
IAR SYSTEMS KEIL CODE SOURCERY HITEX COOCOX ECLIPSE ROWLEY ASSOCIATES
RTOS
AVIX-RT CMX COOCOOX FREERTOS uC/OS-II uc/OS-III RT-LABS SEGGER SMX RTOS THREAD X LAUTERBACH
PROGRAMMERS
ELNEC GOEPEL PHYTON RK-SYSTEM SEGGER
Comparing the EFM32 performance
1 Active 25 MHz @ 3V 2 Reduced processing time 3 Very fast wake-up time 4 Ultra low stand-by current 5 Autonomous peripherals 6 Peripheral Reflex System 7 Well architected Energy Modes 8 Ultra Energy Efficient Peripherals 9 Low Energy Sensor Interface 10 Advanced Energy Monitoring
32-bit EFM32TG840F32
160
µA/MHz
1
Cortex M3
2 µs 0.9 µA Yes Yes Yes Yes Yes Yes
32-bit STM32F101x8
396
µA/MHz
1
Cortex M3
5.4 µs 15.4 µA No No No No No No 1
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32-bit STM32L151xx
294
µA/MHz
1
Cortex M3
8 µs 4.5 µA No No Partial No No No
32-bit LPC11xxL
150
µA/MHz
1.4
Cortex M0
TBD 57 µA No No No No No No
16-bit MSP430F543x
226
µA/MHz
4.3
MSP430
5 µs 2.6 µA Partial No Partial No No No
16-bit PIC24F16KA102
344
µA/MHz
2.3
PIC24
1 µs (1 ms for PLL) 0.93 µA No No Partial No No No
EFM32 Microcontrollers
20 Zero Gecko 48 Giant Gecko
Software Compatible Pin Compatible within each package
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48 Giant Gecko 23 Tiny Gecko 25 Gecko
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EFM32 Zero Gecko
Max frequency: 32 MHz 4 - 32 KB Flash 2 - 4 KB RAM
QFN16 (4x4 mm) QFN24 (5x5 mm) QFN32 (6x6 mm) QFP48 (7x7 mm)
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EFM32 Gecko
Max frequency: 32 MHz 16 - 128 KB Flash 8 - 16 KB RAM
QFN32 (6x6 mm) QFN64 (9x9 mm) QFP48 (7x7 mm) QFP100 (14x14 mm) BGA112 (10x10 mm)
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EFM32 Tiny Gecko
Max frequency: 32 MHz 4 - 32 KB Flash 2 - 4 KB RAM
QFN24 (5x5 mm) QFN32 (6x6 mm) QFN64 (9x9 mm) QFP48 (7x7 mm)
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Max frequency: 48 MHz 64 - 1024 KB Flash 32 - 128 KB RAM QFN64 (9x9 mm) QFP100 (14x14 mm) BGA112 (10x10 mm)
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ARM Cortex-M0
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Clocks and Oscillators
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Direct Memory Access Controller
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Peripheral Reflex System
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Peripheral Reflex System
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High Frequency Timer/Counters
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Real Time Counter
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Low Energy Timer
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Pulse Counter
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Watchdog Timer
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DMA DMA
Low Energy UART
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CPU DMA
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Universal Serial Bus (USB)
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GG GG G TG TG ZG ZG $"21-',3 1!"2<)=6<(643
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Backup Domain with RTC
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Low Power Memory
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External Bus Interface
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TFT Driver
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General Purpose Input/Output
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TX PWM
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Energy Efficient LCD Controller
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Analog to Digital Converter
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Analog to Digital Converter Tailgating
SCAN
Single waiting for scan
SCAN SCAN SINGLE
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SCAN Periodic trigger SCAN SCAN SINGLE
Jitter
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Digital to Analog Converter
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Analog Comparators
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Operational Amplifiers
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Low Energy Sensor Interface (LESENSE)
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LESENSE – Capacitive Example
Analog Comparators measure one input at a time Counts oscillations for a given time period Touched sensor gives lower frequency
ACMP
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frequency Performs action if threshold is breached
Wake-up State-machine input Buffer results
1.2 µA @ 20 Hz
ACMP LESENSE 300 500 < .%'(5 4(7)'$ 435%$'
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LESENSE – Inductive Example
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times the oscillation breaches the ACMP threshold (red)
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the ACMP threshold (red)
value Wake-up State machine input Buffer results
1.4 µA @ 20 Hz GG GG G TG TG ZG ZG
LESENSE – Resistive Example
Capacitor charged to VDD during excitation Sample ACMP output after a programmable time
Wake-up Buffer results State Machine input
Adjustable time period before sampling
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Adjustable time period before sampling
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Power Supply Supervision
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Debug/Programming
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AES Encryption Accelerator
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