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cpu armv7: M-Profile Architectures - Arm®,PDF Overview Features - Arm,ARMv7-M Architecture Reference Manual,R-Profile Architectures - Arm®,
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M-Profile Architectures - Arm®
ARMv7-A. This is a table comparing 32-bit central processing units that implement the ARMv7-A (A means Application) instruction set architecture and mandatory or optional extensions of it, the last AArch32.
PDF Overview Features - Arm
Key features for ARMv7-M: Supports the SDIV and UDIV instructions. Cortex-M3 and Cortex-M4 processors support bit-banding to enable atomic accesses to single bit values.
ARMv7-M Architecture Reference Manual
ARMv6-M is aimed at the very low end of the 32-bit microcontroller space, enabling very low gate-count designs with very simple and highly efficient microarchitecture. Several features of ARMv7-M are removed to enable this simplicity. The following is a summary of the major changes:
R-Profile Architectures - Arm®
The Cortex-A7 is the most efficient Armv7-A processor and includes virtualization support in hardware.