ARM9 is an ARM architecture 32-bit RISC CPU family. With this design generation, ARM moved from a von Neumann architecture (Princeton architecture) to a Modified Harvard architecture with separate instruction and data busses (and caches), significantly increasing its potential speed. There are two subfamilies, implementing different ARM architecture versions.
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ARM9TDMI based cores
ARM9TDMI is a successor to the popular ARM7TDMI core, and is also based on the ARMv4T architecture. Cores based on it support both 32-bit ARM and 16-bit Thumb instruction sets include:
- ARM920T with 16KB each of I/D cache and an MMU
- ARM922T with 8KB each of I/D cache and an MMU
- ARM940T with cache and a Memory Protection Unit (MPU)
ARM9E based cores
ARM9E, and its ARM9EJ sibling, implement longer pipelines and the ARMv5TE architecture, which includes some DSP-ish instruction set extensions. They support 32-bit, 16-bit, and sometimes 8-bit instruction sets.
- ARM926EJ-S (includes ARM Jazelle technology which enables the direct execution of 8-bit Java bytecode in hardware), and an MMU
- ARM946
- ARM966
- ARM968
Applications
- SATEL SATELLAR Digital System radio modem [1]
- Fiat Blue&Me
- Nintendo DS
- Nokia N-Gage
- almost all Nokia N-Series Smartphones at 100-330 MHz
- Conexant 802.11 products
- many mobile phones from Philips, Sony Ericsson (K and W series), Siemens, BenQ (x65 series and newer) and Nokia (like Nokia 5220 XpressMusic)
- D-Link broadband routers, network storage (DNS-* models)
- Lacie EtherDisk
- Chumby
- Hanlin eReader
- Buffalo network-attached storage series Linkstation Pro and KuroBox Pro
- Western Digital My Book series NAS devices
- HTC Wizard a.k.a. Qtek 9100
- Nintendo Wii's ATI Hollywood graphic chip
- PlayStation Portable's WLAN chip. [2]
- Synology's Disk Station (models DS-x07+), Cube Station CS-407, and Rack Station RS-407 [3]
- VTech V.Flash educational consoles[1]
- Nintendo DSi
- Some Sony Ericsson mobile phones (usually at 206MHz)
- LG Cookie (KP500) (at 175MHz) - source > jbenchmark results
- GP2X Wiz
See also
References
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