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LM3S8630-EQN20-A2T 데이터시트(PDF) 26 Page - Texas Instruments |
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LM3S8630-EQN20-A2T 데이터시트(HTML) 26 Page - Texas Instruments |
26 / 546 page – Integrated Nested Vectored Interrupt Controller (NVIC) providing deterministic interrupt handling – 25 interrupts with eight priority levels – Memory protection unit (MPU), providing a privileged mode for protected operating system functionality – Unaligned data access, enabling data to be efficiently packed into memory – Atomic bit manipulation (bit-banding), delivering maximum memory utilization and streamlined peripheral control ■ ARM® Cortex™-M3 Processor Core – Compact core. – Thumb-2 instruction set, delivering the high-performance expected of an ARM core in the memory size usually associated with 8- and 16-bit devices; typically in the range of a few kilobytes of memory for microcontroller class applications. – Rapid application execution through Harvard architecture characterized by separate buses for instruction and data. – Exceptional interrupt handling, by implementing the register manipulations required for handling an interrupt in hardware. – Deterministic, fast interrupt processing: always 12 cycles, or just 6 cycles with tail-chaining – Memory protection unit (MPU) to provide a privileged mode of operation for complex applications. – Migration from the ARM7™ processor family for better performance and power efficiency. – Full-featured debug solution • Serial Wire JTAG Debug Port (SWJ-DP) • Flash Patch and Breakpoint (FPB) unit for implementing breakpoints • Data Watchpoint and Trigger (DWT) unit for implementing watchpoints, trigger resources, and system profiling • Instrumentation Trace Macrocell (ITM) for support of printf style debugging • Trace Port Interface Unit (TPIU) for bridging to a Trace Port Analyzer – Optimized for single-cycle flash usage – Three sleep modes with clock gating for low power – Single-cycle multiply instruction and hardware divide – Atomic operations – ARM Thumb2 mixed 16-/32-bit instruction set April 04, 2010 26 Texas Instruments-Production Data Architectural Overview |
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