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{{Infobox CPU
| name = ARM Cortex-A8
| image =Tolino shine - controller board - Freescale MCIMX507CVM8B-1996.jpg
| image_size =
| caption =Freescale MCIMX507CVM8B
| produced-start =
| produced-end =
| slowest =
| fastest =
| slow-unit =
| fast-unit =
| fsb-slowest =
| fsb-fastest =
| fsb-slow-unit =
| fsb-fast-unit =
| size-from = 65nm
| size-to =
| soldby =
| designfirm = [[ARM Holdings]]
| manuf1 = [[TSMC]]
| core1 =
| pack1 =
| brand1 =
| arch = ARMv7
| microarch =
| cpuid =
| code =
| numcores = 1
| l1cache = 32 KiB/32 KiB
| l2cache = 512 KiB
| l3cache =
| application =
}}
'''ARM Cortex-A8''' 是由[[安謀國際科技|ARM公司]]基于[[ARM架構|ARM v7]]架构设计的高性能处理器。相較於ARM11的核心，Cortex-A8 采用“双指令执行”（dual-issue [[超純量]]）设计, 每个时钟周期可以执行两个指令Cortex-A8是Cortex设计中第一个在大规模消费设备采用中被选择的<ref name="themobileindian gupta 2013-04-26">{{cite news | url=http://www.themobileindian.com/news/11825_ARM-Cortex:-The-force-that-drives-mobile-devices | title=ARM Cortex: The force that drives mobile devices | work=[[The Mobile Indian]] | date=April 26, 2013 | accessdate=2013-05-15 | author=Gupta, Rahul | archive-date=2013-05-12 | archive-url=https://web.archive.org/web/20130512053607/http://www.themobileindian.com/news/11825_ARM-Cortex:-The-force-that-drives-mobile-devices | dead-url=yes }}</ref>。

== 特點 ==

* 頻率從 600MHz到1GHz以上，超頻後可達更高頻率
* [[超純量|双指令执行]]微架构
* NEON [[单指令流多数据流|SIMD]]指令集
* VFPv3浮點單元
* Thumb-2 指令集編碼
* Jazelle RCT
* 高级分支预测单元准确率> 95％
* 集成2级高速缓存（0-4 MIB）
* 2.0 DMIPS/MHz

==芯片==
有些[[系統單晶片|系统级芯片]] （SOC）已经使用了Cortex-A8内核，其中包括：
* 全志A1X
* [[Apple A4|苹果A4]]
* [[飞思卡尔|飞思卡尔半导体]] 。MX51 <ref>{{Cite web |url=http://www.freescale.com/files/training/doc/APF_CON_T0805_i.MX515.pdf |title=i.MX51 Applications Processor and Linux Hands on |deadurl=yes |archiveurl=https://web.archive.org/web/20111119202439/http://www.freescale.com/files/training/doc/APF_CON_T0805_i.MX515.pdf |archivedate=2011-11-19 |accessdate=2013-08-01 }}</ref>
* 瑞芯微 RK2918，RK2906 <ref>{{Cite web |url=http://www.rock-chips.com/index.php?do=prodnew |title=RK29XX |deadurl=yes |archiveurl=https://web.archive.org/web/20111105004637/http://www.rock-chips.com/index.php?do=prodnew |archivedate=2011-11-05 |accessdate=2013-08-01 }}</ref>
* [[Samsung Exynos|Samsung Hummingbird]]
* TI OMAP3
* TI SITARA ARM处理器
* [[科胜讯公司|科胜讯]] CX92755 <ref>{{Cite web |url=http://www.conexant.com/servlets/DownloadNewsServlet/03282011-1.pdf |title=CX97255 |deadurl=yes |archiveurl=https://web.archive.org/web/20121119093431/http://www.conexant.com/servlets/DownloadNewsServlet/03282011-1.pdf |archivedate=2012-11-19 |accessdate=2013-08-01 }}</ref>
* [[Snapdragon|Qualcomm Snapdragon]]。Snapdragon的Scorpion核心，实际上采用的不是Cortex-A8，但是其使用的指令集是ARMv7。

==参考文献==
{{Reflist|30em}}

==参考==
* [[ARM架構|ARM架构]]
* [[JTAG]]

==外部链接 ==
;ARM控股
* {{Official|http://www.arm.com/products/processors/cortex-a/cortex-a8.php}}
* [http://www.arm.com/zh/products/processors/cortex-a/cortex-a8.php Cortex-A8 官方信息]{{Wayback|url=http://www.arm.com/zh/products/processors/cortex-a/cortex-a8.php |date=20130726224402 }}
* [http://infocenter.arm.com/help/topic/com.arm.doc.subset.cortexa.a8/index.html#cortexa8 ARM的Cortex-A8技术参考手册]{{Wayback|url=http://infocenter.arm.com/help/topic/com.arm.doc.subset.cortexa.a8/index.html#cortexa8 |date=20140108183822 }}
* {{en}}[http://www.arm.com/products/processors/cortex-a/cortex-a8.php ARM Cortex-A8 - ARM Processor]{{Wayback|url=http://www.arm.com/products/processors/cortex-a/cortex-a8.php |date=20110610170146 }}

{{-}}
{{ARM晶片}}
{{Microcontrollers}}
{{-}}

[[Category:ARM架构]]

ARM Cortex-A8 - 版本历史

imported>InternetArchiveBot：​补救7个来源，并将0个来源标记为失效。) #IABot (v2.0.7

imported>InternetArchiveBot：补救7个来源，并将0个来源标记为失效。) #IABot (v2.0.7