
2
Confidential
333
ARM Architecture profiles
§
Application profile (ARMv7-A à e.g. Cortex-A8)
§
Memory management support (MMU)
§
Highest performance at low power
§
Influenced by multi-tasking OS system requirements
§
TrustZone and Jazelle-RCT for a safe, extensible system
§
Real-time profile (ARMv7-R à e.g. Cortex-R4)
§
Protected memory (MPU)
§
Low latency and predictability ‘real-time’ needs
§
Evolutionary path for traditional embedded business
§
Microcontroller profile (ARMv7-M à e.g. Cortex-M3)
§
Lowest gate count entry point
§
Deterministic and predictable behavior a key priority
§
Deeply embedded use
444
Programmer’s Model
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