In recent years, with the continuous development of the microelectronics industry, the MCU core has also been innovated by leaps and bounds. It is also because engineers have also put forward higher functions and performance requirements for the selection of MCUs. Embedded MCU selection is mainly based on performance and peripheral functions. Below we will mainly analyze the performance and peripheral functions of the Cortex-A7 processor.
Regarding the Cortex-A7 processor, it was once rated as the most effective application processor developed by ARM to date. It has significantly expanded ARM's low-power leading position in entry-level smartphones, tablets and other advanced mobile devices. The Cortex-A7 processor is an energy-efficient processor based on the ARMv7-A architecture launched by ARM. It adopts a 28nm/40nm manufacturing process and can realize a single-core multi-core MCU. The processor is fully compatible with programs developed by other Cortex-A series processors. The architecture and feature set of the Cortex-A7 processor are exactly the same as the Cortex-A15 processor, including virtualization and large physical address extension (LPAE). New technologies such as NEON advanced SIMD and AMBA 4 ACE conformance. The Cortex-A7 processor focuses on the balance between performance and power consumption.
The difference is that the microarchitecture of the Cortex-A7 processor focuses on providing the best energy efficiency, so the two processors can work together in the big.LITTLE (small and large core companion structure) configuration to provide high performance and The ultimate combination of ultra-low power consumption. The energy efficiency of a single Cortex-A7 processor is 5 times that of the ARM Cortex-A8 processor, the performance is increased by 50%, and the size is only one-fifth of the latter.
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