DSP, Micros & Memory


Microcontrollers offer 32-bit performance at 8/16-bit price point

30 May 2007 DSP, Micros & Memory

Luminary Micro designs, markets, and sells ARM Cortex-M3-based microcontrollers (MCUs).

As ARM's lead partner for Cortex-M3 technology, Luminary Micro delivered the world's first silicon implementation of the Cortex-M3 processor, which provides 32-bit performance at 8-/16-bit cost.

Luminary Micro's Stellaris family of microcontrollers incorporates the ARM Cortex-M3 MCU core running up to 50 MHz, embedded Flash and SRAM, a low-dropout voltage regulator, integrated brown-out reset and power-on reset functions, analog comparators, 10-bit ADC, SSI, GPIOs, watchdog and general purpose timers, UARTs, I²C, motion control PWMs, and quadrature encoder inputs.

With peripherals provided directly to the pins without feature multiplexing, this rich feature set is ideal for applications such as building and home automation; factory automation and control; industrial control power devices; stepper motors; brushed and brushless DC motors; and AC induction motors.

Why choose ARM architecture?

Some advantages are:

* Embedded microcontroller system designers are now able to have 32-bit performance for the same cost as their current 8- and 16-bit microcontroller designs.

* Luminary's Stellaris product line allows for standardisation that eliminates future architectural upgrades or software tools changes.

* With an ARM-based embedded market that is currently shipping at a rate of greater than 2,5 billion processors per year, the ARM ecosystem of third-party tools and solutions providers is the largest in the world.

* With the ARM Cortex architecture, designers have access to an instruction-set-compatible family that ranges from $1 to 1 GHz, an architecture that offers a large breadth of performance with instruction set compatibility.

The Cortex-M3

Cortex-M3 is the microcontroller version of ARM's new V7 instruction set architecture family of cores.

It is: optimised for single-cycle flash usage; deterministic, fast interrupt processing - always 12 cycles, or just six cycles with tail-chaining; three sleep modes with clock gating for low power; single-cycle multiply instruction and hardware divide; atomic operations; ARM Thumb2 mixed 16-/32-bit instruction set; 1,25 DMIPS/MHz - better than ARM7 and ARM9; extra debug support including data watchpoints and flash patching.

For capabilities beyond ARM7 for the MCU market: it requires half the flash (code space) of ARM7 applications; 2-4 times faster on MCU control applications; no assembly code ever required.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Cost-effective microcontroller series
Altron Arrow DSP, Micros & Memory
The STM32C5 series from STMicroelectronics delivers an excellent balance of performance, efficiency, and affordability for embedded designs that require more capability without increasing bill of materials cost.

Read more...
Battery-friendly Thread and BLE solution
iCorp Technologies DSP, Micros & Memory
Positioned as an incremental upgrade to the ESP32-H2, Espressif’s ESP32-H21 adds an integrated DC-DC converter that reduces active current draw and helps extend battery life in power-sensitive consumer and industrial devices.

Read more...
Next generation HMI processing platform
Future Electronics DSP, Micros & Memory
Microchip’s latest hybrid MCU SiP integrates an Arm926EJ-S processor with 512 Mb of DDR2 SDRAM and is engineered to meet the rising demand for sophisticated HMI solutions in modern vehicles.

Read more...
Low-power SoC for IoT designs
iCorp Technologies DSP, Micros & Memory
Espressif’s ESP32-H4 is a dual-core 32-bit RISC-V SoC designed for battery-powered wireless products that require low energy consumption, strong security, and modern connectivity.

Read more...
Chip for high-density power
Future Electronics DSP, Micros & Memory
Microchip’s dsPIC33AK256MPS306 Digital Signal Controllers combine high-resolution control, high-speed analogue, and security with support for post-quantum cryptography.

Read more...
The end of ‘entry-level’: STMicroelectronics’ STM32C5 sets a new baseline for embedded systems
DSP, Micros & Memory
[Sponsored] Instead of incrementally improving legacy Cortex-M0+ architectures, STM32C5 introduces a Cortex-M33-based platform into the entry-level category. This changes not only performance expectations, but also how engineers approach system architecture, consolidation, and long-term scalability.

Read more...
GigaDevice expands GD25UF Series density
NuVision Electronics DSP, Micros & Memory
GigaDevice has announced the expanded density range of its GD25UF series 1,2 V ultra-low power SPI NOR Flash, now spanning from 8 Mb to 256 Mb.

Read more...
ARINC 429 line driver evaluation board
ASIC Design Services DSP, Micros & Memory
Holt Integrated Circuits have announced the release of the ADK-85104 Evaluation Board, a compact, ready-to-use platform designed to help engineers rapidly evaluate and characterise Holt’s HI-85104.

Read more...
Highly integrated 24-channel mixed signal IC
EBV Electrolink DSP, Micros & Memory
Microchip Technology has announced the LX4580, a 24-channel mixed-signal IC designed to replace multiple discrete components with a single device that supports synchronised data acquisition, fault monitoring, and motor control.

Read more...
Lower-power Thread and BLE connectivity
iCorp Technologies DSP, Micros & Memory
Espressif has released the ESP32-H21, a low-power wireless SoC aimed at Thread, Matter, Zigbee, and Bluetooth LE device designs.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved