Cortex-A8

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The ARM Cortex-A8 is a 32-bit RISC microprocessor based on the ARM architecture. The processor is in the Corex family of processors, using the ARMv7-A architecture.

Technical Information

The Cortex-A8 features VFP, NEON, Jazelle RCT, Thumb-2, and a 13-stage superscalar pipeline. It has an L1 and L2 cache of variable sizes (typically 32k/32k), with MMU+TrustZone, and used GIC-390 as it's interrupt controller. Frequency conditions for those made with the 65nm LP process operate at frequency conditions of 1.08v, while those using the 65nm G+ process run at 0.9v.

The processor's speed is about 2.0 DMIPS/MHz, ranging from 600MHz to around 1 GHz currently.

The processor is used in a variety of common devices, such as the basis for Texas Instruments OMAP3xxx series processors, The Apple iPhone 3GS, iPod touch (3rd gen), iPad, and iPhone 4, the Motorola Droid, Palm Pre, Samsung Wave S8500, and many other devices. In mobile applications is is typically under-clocked to conserve power and reduce heat. It is also the basis for the Beagleboard development board.


External Links

ARM Cortex-A8 information


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