ARM处理器的选择

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我是靠谱客的博主害怕小海豚，最近开发中收集的这篇文章主要介绍ARM处理器的选择，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

ARM offers a broad range of processors to address a wide variety of applications while delivering optimum performance, power consumption and system cost. these processors are designed to meet the needs of three system categories:

Embedded real-time systems

Embedded real-time systems for storage, automotive body and power-train, industrial and networking applications

Application platforms

Devices running open operating systems including Linux, Palm OS, Symbian OS and Windows CE in wireless, consumer entertainment and digital imaging applications

Secure applications

Smart cards, SIM cards and payment terminals

ARM CPU processors cover a wide range of performance and features enabling system designers to create solutions that meet their precise requirements. ARM offers both synthesisable and hard macro products, together with a range of coprocessors and debug facilities . The table below provides an at-a-glance guide to ARM processors and their performance characteristics, with links to each.

ARM CPU PROCESSORS


		Cache Size (Inst/Data)	Tightly Coupled Memory	Memory Mgt	Bus Interface	Thumb	DSP	Jazelle

APPLICATION PROCESSORS


	ARM Cortex-A8	Variable	-	MMU+TrustZone	AMBA 3 AXI	Yes	Yes	Yes



	ARM Cortex-A9 MPCore	16k/64k		MMU+TrustZone	AMBA 3 AXI	Yes	Yes	Yes



	ARM Cortex-A9 Single Core Processor	16k/64k		MMU+TrustZone	AMBA 3 AXI	Yes	No	Yes



	ARM1020E	32k/32k	-	MMU	2x AHB	Yes	Yes	No



	ARM1022E	16k/16k	-	MMU	2x AHB	Yes	Yes	No



	ARM1026EJ-S	Variable	Yes	MMU or MPU	2x AHB	Yes	Yes	Yes



	ARM11 MPCore	Variable	-	MMU + cache coherency	1x or 2x AMBA AXI	Yes	Yes	Yes



	ARM1136J(F)-S	Variable	Yes	MMU	5x AHB	Yes	Yes	Yes



	ARM1176JZ(F)-S	Variable	Yes	MMU + TrustZone	4x AXI	Yes	Yes	Yes



	ARM720T	8k unified	-	MMU	AHB	Yes	No	No



	ARM920T	16k/16k	-	MMU	ASB	Yes	No	No



	ARM922T	8k/8k	-	MMU	ASB	Yes	No	No



	ARM926EJ-S	Variable	Yes	MMU	2x AHB	Yes	Yes	Yes

EMBEDDED PROCESSORS


	ARM Cortex-M1		Yes	-	AMBA AHB-Lite + APB	Yes	No	No



	ARM Cortex-M3	-	-	MPU (optional)	3x AHB-Lite + APB	Yes	No	No



	ARM Cortex-R4(F)	0K-64k	Variable	MPU	AMBA 3 AXI	Yes	Yes	No



	ARM1026EJ-S	Variable	Yes	MMU or MPU	2x AHB	Yes	Yes	Yes



	ARM1156T2(F)-S	Variable	Yes	MPU	3xAXI	Yes	Yes	No



	ARM7EJ-S	-	-	-	Yes	Yes	Yes	Yes



	ARM7TDMI	-	-	-	Yes**	Yes	No	No



	ARM7TDMI-S	-	-	-	Yes	Yes	No	No



	ARM946E-S	Variable	Yes	MPU	AHB	Yes	Yes	No



	ARM966E-S	-	Yes	-	AHB	Yes	Yes	No



	ARM968E-S	n/a	Yes	DMA	AHB-Lite	Yes	Yes	No



	ARM996HS	n/a		MPU(optional)	Dual AMBA AHB	Yes	Yes	No

SECURE APPLICATIONS


	SecurCore SC100	-	-	MPU	-	Yes	No	No



	SecurCore SC200	-	-	MPU	-	Yes	Yes	Yes