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ARM11 Overview
The ARM11
processor family provides the engine that powers many smartphones in production today; it is also widely used in consumer, home, and embedded applications. It delivers extreme low power and a range of performance from 350 MHz in small area designs up to 1 GHz in speed optimized designs in 45 and 65 nm. ARM11 processor software is compatible with all previous generations of ARM processors, and introduces 32-bit SIMD for media processing, physically tagged caches to improve OS context switch performance, TrustZone for hardware-enforced security, and tightly coupled memories for real-time applications.
ARM11 Processor Family Features
- Powerful ARMv6 instruction set architecture
- ARM Thumb
instruction set reduces memory bandwidth and size requirements by up to 35% - ARM Jazelle technology for efficient embedded Java execution
- ARM DSP extensions
- SIMD (Single Instruction Multiple Data) media processing extensions deliver up to 2x performance for video processing
- ARM TrustZone technology for on-chip security foundation (ARM1176JZ-S and ARM1176JZF-S processors)
- Thumb-2 technology (ARM1156(F)-S only) for enhanced performance, energy efficiency and code density
- Low power consumption:
- 0.21 mW/MHz (65G) including cache controllers
- Energy saving power-down modes address static leakage currents in advanced processes
- High performance integer processor
- 8-stage integer pipeline delivers high clock frequency (9 stages for ARM1156T2(F)-S)
- Separate load-store and arithmetic pipelines
- Branch Prediction and Return Stack
- High performance memory system design
- Supports 4-64k cache sizes
- Optional tightly coupled memories with DMA for multi-media applications
- High-performance 64-bit memory system speeds data access for media processing and networking applications
- ARMv6 memory system architecture accelerates OS context-switch
- Vectored interrupt interface and low-interrupt-latency mode speeds interrupt response and real-time performance
- Optional Vector Floating Point coprocessor for automotive/industrial controls and 3D graphics acceleration (ARM1136JF-S, ARM1176JZF-S and ARM1156T2F-S processors)
- All ARM11 family processors are delivered as ARM-Synopsys Reference Methodology compliant deliverables which significantly reduce the time to generate a specific technology implementation of the core and to generate a complete set of industry standard views and models.
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