Английская Википедия:ARM Cortex-A8
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The ARM Cortex-A8 is a 32-bit processor core licensed by ARM Holdings implementing the ARMv7-A architecture.
Compared to the ARM11, the Cortex-A8 is a dual-issue superscalar design, achieving roughly twice the instructions per cycle. The Cortex-A8 was the first Cortex design to be adopted on a large scale in consumer devices.[1]
Features
Шаблон:Main Key features of the Cortex-A8 core are:
- Frequency from 600 MHz to 1 GHz and above
- Superscalar dual-issue microarchitecture
- NEON SIMD instruction set extension [2]
- 13-stage integer pipeline and 10-stage NEON pipeline [3]
- VFPv3 floating-point unit
- Thumb-2 instruction set encoding
- Jazelle RCT (also known as ThumbEE instruction set)
- Advanced branch prediction unit with >95% accuracy
- Integrated level 2 Cache (0–4 MiB)
- 2.0 DMIPS/MHz
Chips
Several system-on-chips (SoC) have implemented the Cortex-A8 core, including:
- Allwinner A1X
- Apple A4
- Freescale Semiconductor i.MX51 [4]
- Rockchip RK2918, RK2906 [5]
- Samsung Exynos 3110
- TI OMAP3
- TI Sitara ARM Processors
- Conexant CX92755 [6]
See also
- ARM architecture
- Comparison of ARMv7-A cores
- JTAG
- List of applications of ARM cores
- List of ARM cores
References
External links
- ARM Holdings
Шаблон:- Шаблон:Application ARM-based chips Шаблон:-
