![]() This ensures semantically rigorous designs, preserving identical semantics throughout the chip design flow, which included extensive use of formal verification techniques. In particular, trace semantics were updated to address parallel instruction execution and data transfers.ĪRM makes an effort to promote recommended Verilog coding styles and techniques. The hardware tracing modules (ETM and ETB) are compatible, but updated, versions of those used in the ARM9. The EmbeddedICE module was replaced with an interface which became part of the ARMv7 architecture. JTAG debug support (for halting, stepping, breakpoints, and watchpoints) was simplified. Cache misses don't block execution of non-dependent instructions.Dynamic branch prediction/folding (like XScale).Out-of-order completion for some operations (e.g., stores).Redesigned pipeline, supporting faster clock speeds (target up to 1 GHz).Reduced heat production and lower overheating risk.Unaligned and mixed-endian data access is supported.Cache is physically addressed, solving many cache aliasing problems and reducing context switch overhead.SIMD instructions which can double MPEG-4 and audio digital signal processing algorithm speed.Microarchitecture improvements in ARM11 cores include: It incorporates all ARM926EJ-S features and adds the ARMv6 instructions for media support (SIMD) and accelerating IRQ response. In terms of instruction set, ARM11 builds on the preceding ARM9 generation. ![]() There are, however, ARMv6-M cores ( Cortex-M0 and Cortex-M1), addressing microcontroller applications ARM11 cores target more demanding applications. The ARM11 family are currently the only ARMv6-architecture cores. The initial ARM11 core (ARM1136) was released to licensees in October 2002. ![]() The implementation included a significantly improved instruction processing pipeline, compared to previous ARM9 or ARM10 families, and is used in smartphones from Apple, Nokia, and others. These include SIMD media instructions, multiprocessor support and a new cache architecture. ![]() ![]() The ARM11 product family (announced 29 April 2002) introduced the ARMv6 architectural additions which had been announced in October 2001. See also: ARM architecture and List of ARM cores ![]()
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