ARM cortex-M4和cortex-M7对比

bigfanofloT

Cortex-M7 处理器

The ARM® Cortex®-M7 processor is the mostrecent and highest performance member of the energy-efficient ARM Cortex-Mseries, enabling partners to build the most sophisticated variety of MCUs andembedded SoCs. The Cortex-M7 has been designed to deliver a very high level ofperformance, while maintaining the excellent responsiveness and ease-of-use ofthe ARMv7-M architecture.

Key Benefits

Highest performance Cortex-M processordelivering the best in class integer, floating point and DSP performance

Low-power processor design with extensiveclock and power gating, customizable to minimize power consumption and highenergy efficiency

Flexible system and memory interfacesincluding AXI, AHB, caches and tightly-coupled memories

Safety-critical requirement support, withfeatures like the error recovery through memory Error Correction Code (ECC),full data trace, and full safety documentation

C friendly programmer’s model and 100%binary compatible with existing Cortex-M3 and Cortex-M4 processors

Applications

The Cortex-M7 processor's industry leadinghigh-performance and flexible system interfaces are ideal for a wide variety ofapplication areas including:

Cortex-M4 处理器

The ARM® Cortex®-M4 processor is a highperformance embedded processor with DSP instructions developed to addressdigital signal control markets that demand an efficient, easy-to-use blend ofcontrol and signal processing capabilities. The processor is highlyconfigurable enabling a wide range of implementations from those requiringfloating point operations, memory protection and powerful trace technology tocost sensitive devices requiring minimal area.

Key Benefits

Gain the advantages of a microcontrollerwith integrated DSP, SIMD, and MAC instructions that simplify overall systemdesign, software development and debug

Accelerate single precision floating pointmath operations up to 10x over the equivalent integer software library with theoptional floating point unit (FPU)

Develop solutions for a large variety ofmarkets with a full-featured ARMv7-M instruction set that has been provenacross a broad set of embedded applications

Achieve exceptional 32-bit performance withlow dynamic power, delivering leading system energy efficiency due tointegrated software controlled sleep modes, extensive clock gating and optionalstate retention.

Applications