Cortex-M4 Processor

The ARM® Cortex®-M4 processor is ARM’s high performance embedded processor developed to address digital signal control markets that demand an efficient, easy-to-use blend of control and signal processing capabilities.

The combination of high-efficiency signal processing functionality with the low-power, low cost and ease-of-use benefits of the Cortex-M family of processors is designed to satisfy the emerging category of flexible solutions specifically targeting the motor control, automotive, power management, embedded audio and industrial automation markets.

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Energy efficient digital signal control

The Cortex-M4 processor has been designed with a large variety of highly efficient signal processing features applicable to digital signal control markets. The Cortex-M4 processor features extended single-cycle multiply accumulate (MAC) instructions, optimized SIMD arithmetic, saturating arithmetic instructions and an optional single precision Floating Point Unit (FPU). These features build upon the innovative technology that characterizes the ARM Cortex-M processor family.

Responsiveness and low power

In common with the other members of the Cortex-M family of processors, the Cortex-M4 has integrated sleep modes and optional state retention capabilities which enable high performance at a low level of power consumption. The processor executes the Thumb®-2 instruction set for optimal performance and code size, including hardware division, single cycle multiply, and bit-field manipulation. The Cortex-M4 Nested Vectored Interrupt Controller is highly configurable at design time to deliver up to 240 system interrupts with individual priorities, dynamic reprioritization and integrated system clock.

Easy-to-use technology

The Cortex-M4 makes signal processing algorithm development easy through an excellent ecosystem of software tools and the Cortex Microcontroller Software Interface Standard (CMSIS).


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