ARM Cortex-M0 microcontroller is optimized for smart meters
May 29, 2012 // Paul Buckley
Toshiba Electronics Europe is launching a 32-bit RISC microcontroller built around the ARM Cortex-M0 processor core. The new TMPM061 is also Toshiba's first Cortex-M0 device specifically designed for smart metering applications.
The microcontroller allows designers to replace the conventional two-chip analog front end (AFE) and processor approach to smart meter design with a single IC.
ARM’s smallest processor, the ARM Cortex-M0 delivers small silicon area, low power and minimal code footprint, making it ideal for smart meter designs. Toshiba has used this core for its new microcontroller’s main CPU, while deploying an on-board DSP power calculation engine to simplify smart meter power measurement. The power calculation engine can calculate active energy, reactive energy and power factor as well as monitoring voltage and frequency fluctuation. Flexibility is enhanced as the basic energy use calculation function can be updated and modified by the developer as necessary.
As well as the power calculation engine the TMPM061 offers a variety of on-board functions that will minimize the component count of smart meter designs. These include a three-channel, high-precision 24-bit Delta-Sigma (∆∑) analogue-to-digital converter (ADC), a 10-bit ADC and a temperature-compensated real-time clock (RTC). The ∆∑ ADC supports simultaneous sampling at up to 6 kHz and has a SINAD (signal-to-noise and distortion ratio) that is suitable for a residential meter.
Toshiba is providing the TMPM061 with up to 128 Kbytes of on-chip Flash ROM and 8Kbytes of available on-chip RAM. Additional on-board peripherals include a 9-channel, 16-bit timer, a controller for directly driving an LCD display, a temperature sensor, a voltage detection circuit and a watchdog timer. Integrated connectivity comprises a 5-channel general-purpose serial interface (selectable between UART mode and synchronous mode) and a serial bus interface. The latter offers a choice of I 2 C bus mode or synchronous mode operation.
The TMPM061FWFG is supplied in a 14 mm x 14 mm 100-pin LQFP package and will operate with input voltages from 1.8 V to 3.6 V. Maximum operating frequency is 16 MHz. Four standby modes (IDLE, SLOW, SLEEP, STOP) ensure minimum power consumption for a range of conditions.
Samples of the new microcontroller will be available from August 2012, with mass production scheduled for December 2012.
Visit Toshiba Electronics Europe at www.toshiba-components.com
Google, Silicon Labs mesh for ZigBee-like protocol
October 02, 2014
With industry players all battling to "own" customers and their data, the Internet of Things (IoT) market looks chaotic and ...
Will fault management solution be key to DC switch?
ARM extends into IoT software
Is there a future for the MOST bus?
Beyond programmability: full design observability at runtime
Nikola Tesla's lab could speak to future generations
October 01, 2014
Macronix rolls out European expansion plan
Intel leads non-iPad tablet processor market
Farnell element14 signs global agreement with RECOM Power
- Solutions for Millimeter Wave Wireless Backhaul
- Enter Linduino
- A Novel Approach to Industrial Rectifier Systems
- Putting FPGAs to Work in Software Radio Systems Handbook
InterviewIs there a future for the MOST bus?
In no other domain in the car, the technological evolution is advancing more rapidly than in the infotainment sector. Nevertheless, the MOST data networking technology seems to maintain its position as ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Oscium is giving away three of its iMSO-204L dual analogue iOS oscilloscopes, worth USD400 each. Designed with native Lightning compatibility, the iMSO-204L transforms the iPad, iPhone, and iPod touch into an ultra-portable, two-channel oscilloscope.
Since Apple changed its connector, Oscium has been working to bring native compatibility to its customers. The third generation...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.