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{{Infobox CPU
|name = ARM Cortex-A5
|image =
|image_size =
|caption =
|produced-start = 2011<ref name="ars"/>
|produced-end =
|slowest =
|fastest =
|slow-unit =
|fast-unit =
|size-from =
|size-to =
|soldby =
|designfirm = [[安谋控股]]
|manuf1 = [[台湾积体电路制造]]
|core1 =
|pack1 =
|brand1 =
|arch = 
|microarch = ARMv7-A
|cpuid =
|code =
|numcores = 1–4
|l1cache = 4–64 KB/4–64 KB
|l2cache =
|l3cache =
|application =
}}

'''ARM Cortex-A5'''是由[[安谋控股]]基于2009年发布的[[ARM架构|ARMv7-A微架构]]授权的ARM处理器架构.<ref name="ars"/>
Cortex-A5是为了在低功耗设备上替代[[ARM9]]与[[ARM11]]核心而研发的。<ref name="ars">{{cite web | url=https://arstechnica.com/gadgets/2009/10/arm-fills-out-cpu-lineup-with-cortex-a5/ | title=ARM fills out CPU lineup with Cortex A5 | date=Oct 23, 2009 | publisher=[[Ars Technica]] | author=Jon Stokes | accessdate=2012-10-18 | archive-date=2012-10-15 | archive-url=https://web.archive.org/web/20121015062040/http://arstechnica.com/gadgets/2009/10/arm-fills-out-cpu-lineup-with-cortex-a5/ | dead-url=no }}</ref>
Cortex-A5在ARMv7架构的基础上更加注重于包括VFPv4和NEON advanced SIMD在内的互联网服务需求。<ref>{{cite web|url=http://www.arm.com/products/processors/cortex-a/cortex-a5.php|title=Cortex-A5 Processor|date=February 2015|accessdate=2018-07-08|archive-date=2016-11-08|archive-url=https://web.archive.org/web/20161108061051/http://www.arm.com/products/processors/cortex-a/cortex-a5.php|dead-url=yes}}</ref>

Cortex-A5核心主要的功能有：
* [[超标量]]，八阶段微架构[[乱序执行|in-order]] [[指令管线化|pipeline]]<ref name="ars"/>
* [[ARM架構#進階SIMD（NEON）|NEON]] [[单指令流多数据流]] 指令集擴展 (可選)
* VFPv4 [[浮点运算器]] (可選)
* [[Thumb-2]] 指令集编码
* [[Jazelle RCT]]
* 1.57 [[Dhrystone|DMIPS]] / MHz

==实际使用==
已有部分 [[系统芯片|系统芯片]] (SoC) 已经开始使用Cortex-A5核心，包括：
* [[Atmel]] [[AT91SAM#AT91SAMA|SAMA5Dxx]]
* [[飞思卡尔]] [[Vybrid Series]]
* [[高通驍龍元件列表#骁龙S1|Snapdragon S1]] MSM7x25A / MSM7x27A (up to 1.0GHz + [[Adreno]] 200)
* [[高通驍龍元件列表#骁龙S4|Snapdragon S4 Play]]
* [[展讯]] SC8810 (single core A5 1 GHz + [[ARM Mali|Mali400]] GPU)
* [[炬力集成]] ATM7029 (gs702a) 是四核 Cortex-A5 配置
* 2013 [[AMD加速处理器]] APU 包括一個 Cortex-A5 作為安全協處理器<ref>{{cite web | url=http://www.anandtech.com/show/6007/amd-2013-apus-to-include-arm-cortexa5-processor-for-trustzone-capabilities | title=AMD 2013 APUs To Include ARM Cortex-A5 Processor For TrustZone Capabilities | date=2012-06-13 | publisher=[[AnandTech]] | author=Ryan Smith | accessdate=2012-10-17 | archive-date=2013-09-15 | archive-url=https://www.webcitation.org/6Je466fAT?url=http://www.anandtech.com/show/6007/amd-2013-apus-to-include-arm-cortexa5-processor-for-trustzone-capabilities | dead-url=yes }}</ref>
* [[三星集團|三星]] [[猎户座]] 7420 (作為音頻 [[数字信号处理器|DSP]])<ref>{{cite web | url=http://www.anandtech.com/show/9330/exynos-7420-deep-dive/3 | title=The Samsung Exynos 7420 Deep Dive - Inside A Modern 14nm SoC | publisher=AnandTech | accessdate=2015-06-15 | archive-date=2015-06-30 | archive-url=https://web.archive.org/web/20150630074201/http://www.anandtech.com/show/9330/exynos-7420-deep-dive/3 | dead-url=no }}</ref>
* [[Amlogic]] S805, M805 and A111

==开发板==
{| class="wikitable sortable" border="1" style="text-align:center; "
! scope="col"| 名称
! scope="col"| 处理器
! scope="col"| 控制板
! scope="col"| USB接口
! scope="col"| 串口数
! scope="col"| 有线网
! scope="col"| HDMI
! scope="col"| LCD
! scope="col"| CAN
! scope="col"| 其他
! scope="col"| 操作系统
|-
| [http://www.myirtech.com/list.asp?id=554 MYD-JA5D2X]{{Wayback|url=http://www.myirtech.com/list.asp?id=554 |date=20180731074725 }} || Atmel SAMA5D2 Cortex-A5 || MYC-JA5D2X || 3 x USB Host(1 x USB HSIC ) ||2 x RS232 (1 x Debug),1 xRS485||1 x 10/100Mpbs Ethernet ||0||1 x LCD||1 x CAN||1 x LPFMC ||Linux 4.1
|-
| [https://web.archive.org/web/20160202043421/http://www.myirtech.com/list.asp?id=540 MYD-JA5D44] || Atmel SAMA5D4 Cortex-A5 || MYC-JA5D44 || 3 x USB ||2 x RS232 (1 x Debug),1 x RS485 ||2 x 10/100Mpbs Ethernet||1 x HDMI||1 x LCD||1 x CAN|| ||Linux 3.18
|-
| [https://web.archive.org/web/20140227122009/http://www.myirtech.com/list.asp?id=432 MYD-SAMA5D3X] ||Atmel SAMA5D3 Cortex-A5|| 512/256MB DDR2, 256MB Nand Flash,16MB Nor Flash,4MB Data Flash|| 2 x USB Host,1 x USB OTG||2 x RS232 (1 x Debug),1 x RS485 || Gigabit Ethernet||1 x HDMI||1 x LCD||2 x CAN|| ||Linux 3.6.9, Android 4.0.4
|-
|}

==衍生阅读==
* [[ARM架构]]
* [[ARM处理器内核列表]]

==参考资料==
{{Reflist|30em}}

==外部链接==
;ARM Holdings
* {{Official website|http://www.arm.com/products/processors/cortex-a/cortex-a5.php}}
* [http://infocenter.arm.com/help/topic/com.arm.doc.subset.cortexa.a5/index.html#cortexa5 ARM Cortex-A5 Technical Reference Manuals]{{Wayback|url=http://infocenter.arm.com/help/topic/com.arm.doc.subset.cortexa.a5/index.html#cortexa5 |date=20180708074906 }}
{{-}}
{{ARM晶片}}
[[Category:ARMv7-A微架构]]
[[Category:ARM公司IP核]]

ARM Cortex-A5 - 版本历史

imported>射命丸 来自 2024年5月20日 (一) 16:53

imported>射命丸来自 2024年5月20日 (一) 16:53