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The ARM Cortex-M family are ARM microprocessor cores that are designed for use in microcontrollers, ASICs, ASSPs, FPGAs, and SoCs.Cortex-M cores are commonly used as dedicated microcontroller chips, but also are "hidden" inside of SoC chips as power management controllers, I/O controllers, system controllers, touch screen controllers, smart battery controllers, and sensor controllers.
As Cortex-M0 0.9 DMIPS/MHz ARMv4T SC100 As ARM7TDMI ARMv7-M SC300 As Cortex-M3 1.25 DMIPS/MHz Cortex-M: ARMv6-M Cortex-M0: Microcontroller profile, most Thumb + some Thumb-2, [12] hardware multiply instruction (optional small), optional system timer, optional bit-banding memory Optional cache, no TCM, no MPU 0.84 DMIPS/MHz [13] Cortex-M0+
For example, the ARM Cortex-A32 supports only AArch32, [163] the ARM Cortex-A34 supports only AArch64, [164] and the ARM Cortex-A72 supports both AArch64 and AArch32. [165] An ARMv9-A processor must support AArch64 at all Exception levels, and may support AArch32 at EL0.
SAMS70 series, (2015) Atmel announced the SAM S70 series based on the ARM Cortex-M7. [18] SAME70 series, (2015) Atmel announced the SAM S70 series based on the ARM Cortex-M7. [18] SAMV70 series, (2015) Atmel announced the SAM S70 series based on the ARM Cortex-M7, which is the first Atmel chip automotive grade with a Cortex-M7 core. [19]
The STM32 F2-series of STM32 microcontrollers based on the ARM Cortex-M3 core. It is the most recent and fastest Cortex-M3 series. The F2 is pin-to-pin compatible with the STM32 F4-series. The summary for this series is: [21] [20] [22] Core: ARM Cortex-M3 core at a maximum clock rate of 120 MHz. Memory:
In September 2012, NXP announced the LPC4000 series based on ARM Cortex-M4F. [34] In November 2012, NXP announced the LPC800 series based on the ARM Cortex-M0+ core, and the first ARM Cortex-M in a DIP8 package. [35] In April 2013, NXP announced the LPC-Link 2 JTAG / SWD debug adapter. Multiple firmware versions are available to emulate popular ...
ARM core generic user guide. ARM core technical reference manual. ARM architecture reference manual. Cypress Semiconductor has additional documents, such as: evaluation board user manuals, application notes, getting started guides, software library documents, errata, and more. See External Links section for links to official PSoC and ARM documents.
The M3's Unified Memory Architecture (UMA) is similar to the M2 generation; M3 SoCs use 6,400 MT/s LPDDR5 SDRAM. As with prior M series SoCs, this serves as both RAM and video RAM. The M3 has 8 memory controllers, the M3 Pro has 12 and the M3 Max has 32. Each controller is 16-bits wide and is capable of accessing up to 4 GiB of memory. [14]