The ARM Cortex-A5 is a 32-bit processor core licensed by
ARM Holdings
Arm Holdings plc (formerly an acronym for Advanced RISC Machines and originally Acorn RISC Machine) is a British semiconductor and software design company based in Cambridge, England, whose primary business is the design of central processing ...
implementing the
ARMv7-A architecture announced in 2009.
Overview
The Cortex-A5 is intended to replace the
ARM9
ARM9 is a group of 32-bit RISC ARM processor cores licensed by ARM Holdings for microcontroller use. The ARM9 core family consists of ARM9TDMI, ARM940T, ARM9E-S, ARM966E-S, ARM920T, ARM922T, ARM946E-S, ARM9EJ-S, ARM926EJ-S, ARM968E-S, ARM99 ...
and
ARM11 cores for use in low-end devices.
The Cortex-A5 offers features of the ARMv7 architecture focusing on internet applications e.g. VFPv4 and NEON advanced SIMD.
Key features of the Cortex-A5 core are:
*
Single-issue,
in-order microarchitecture with an 8-stage
pipeline
A pipeline is a system of Pipe (fluid conveyance), pipes for long-distance transportation of a liquid or gas, typically to a market area for consumption. The latest data from 2014 gives a total of slightly less than of pipeline in 120 countries ...
*
NEON
Neon is a chemical element; it has symbol Ne and atomic number 10. It is the second noble gas in the periodic table. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with approximately two-thirds the density of ...
SIMD
Single instruction, multiple data (SIMD) is a type of parallel computer, parallel processing in Flynn's taxonomy. SIMD describes computers with multiple processing elements that perform the same operation on multiple data points simultaneousl ...
instruction set extension (optional)
* VFPv4
floating-point unit
A floating-point unit (FPU), numeric processing unit (NPU), colloquially math coprocessor, is a part of a computer system specially designed to carry out operations on floating-point numbers. Typical operations are addition, subtraction, multip ...
(optional)
*
Thumb-2
ARM (stylised in lowercase as arm, formerly an acronym for Advanced RISC Machines and originally Acorn RISC Machine) is a family of reduced instruction set computer, RISC instruction set architectures (ISAs) for central processing unit, com ...
instruction set encoding
*
Jazelle RCT
ARM (stylised in lowercase as arm, formerly an acronym for Advanced RISC Machines and originally Acorn RISC Machine) is a family of RISC instruction set architectures (ISAs) for computer processors. Arm Holdings develops the ISAs and lice ...
* 1.57
DMIPS / MHz
Chips
Several
system-on-chips (SoC) have implemented the Cortex-A5 core, including:
*
Actions Semiconductor
Actions Semiconductor Co. Ltd. () is a Chinese Fabless manufacturing, fabless semiconductor industry, semiconductor company founded in 2000 and headquartered in Zhuhai, Guangdong province and has offices in both Shanghai and Shenzhen. The company ...
ATM7029 (gs702a) is a quad-core Cortex-A5 configuration
*
AMD APUs include a Cortex-A5 as a security co-processor
*
Amlogic S805, M805 and A111
*
Analog Devices
Analog Devices, Inc. (ADI), also known simply as Analog, is an American multinational corporation, multinational semiconductor company specializing in data conversion, signal processing, and power management technology, headquartered in Wilming ...
ADSP-SC57x, ADSP-SC58x series ARM Cortex-A5 + SHARC+ multicore DSP
*
Atmel SAMA5Dxx
*
Freescale
Freescale Semiconductor, Inc. was an American semiconductor manufacturer. It was created by the divestiture of the Semiconductor Products Sector of Motorola in 2004. Freescale focused their integrated circuit products on the automotive, embedde ...
Vybrid Series
*
NTC Module
NTC Module (Research Center "Module") is a Russian scientific technological center (R&D production enterprise), founded in 1990 by the two enterprises of Russian military–industrial complex: NPO Vympel and NII Radiopriborostroyeniye.
Conduct ...
1879VM8Ya (penta-core Cortex-A5, up to 800 MHz)
*
Qualcomm
Qualcomm Incorporated () is an American multinational corporation headquartered in San Diego, California, and Delaware General Corporation Law, incorporated in Delaware. It creates semiconductors, software and services related to wireless techn ...
Snapdragon S1 MSM7x25A / MSM7x27A (up to 1.0GHz +
Adreno
Adreno is a series of graphics processing unit (GPU) semiconductor intellectual property cores developed by Qualcomm and used in many of their SoCs.
History
Adreno is an integrated graphics processing unit (GPU) within Qualcomm's Snapdrago ...
200)
*
Qualcomm
Qualcomm Incorporated () is an American multinational corporation headquartered in San Diego, California, and Delaware General Corporation Law, incorporated in Delaware. It creates semiconductors, software and services related to wireless techn ...
Snapdragon S4 Play
*
Samsung
Samsung Group (; stylised as SΛMSUNG) is a South Korean Multinational corporation, multinational manufacturing Conglomerate (company), conglomerate headquartered in the Samsung Town office complex in Seoul. The group consists of numerous a ...
Exynos
The Samsung Exynos (stylized as SΛMSUNG Exynos), formerly Hummingbird (), is a series of ARM architecture, Arm-based System on a chip, system-on-chips developed by Samsung Electronics' System LSI division and manufactured by Samsung Foundry. I ...
7420 (Cortex-A5 as an audio
DSP)
*
Spreadtrum SC8810 (single core A5 1 GHz +
Mali400 GPU)
* contain a Cortex-A5 as a
Platform Security Processor
See also
*
ARM architecture
ARM (stylised in lowercase as arm, formerly an acronym for Advanced RISC Machines and originally Acorn RISC Machine) is a family of reduced instruction set computer, RISC instruction set architectures (ISAs) for central processing unit, com ...
*
Comparison of ARMv7-A microarchitectures
*
JTAG
JTAG (named after the Joint Test Action Group which codified it) is an industry standard for verifying designs of and testing printed circuit boards after manufacture.
JTAG implements standards for on-chip instrumentation in electronic design ...
*
List of applications of ARM microarchitectures
*
List of ARM microarchitectures
References
External links
;ARM Holdings
*
ARM Cortex-A5 Technical Reference Manuals
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ARM processors
ARM Holdings IP cores