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LM3S8630-IQC50-A2 데이터시트(PDF) 41 Page - Texas Instruments |
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LM3S8630-IQC50-A2 데이터시트(HTML) 41 Page - Texas Instruments |
41 / 550 page For more information on the ARM Cortex-M3 processor core, see the ARM® Cortex™-M3 Technical Reference Manual. For information on SWJ-DP, see the ARM® CoreSight Technical Reference Manual. 2.1 Block Diagram Figure 2-1. CPU Block Diagram Private Peripheral Bus (internal) Data Watchpoint and Trace Interrupts Debug Sleep Instrumentation Trace Macrocell Trace Port Interface Unit CM3 Core Instructions Data Flash Patch and Breakpoint Memory Protection Unit Adv. High- Perf. Bus Access Port Nested Vectored Interrupt Controller Serial Wire JTAG Debug Port Bus Matrix Adv. Peripheral Bus I-code bus D-code bus System bus ROM Table Private Peripheral Bus (external) Serial Wire Output Trace Port (SWO) ARM Cortex-M3 2.2 Functional Description Important: The ARM® Cortex™-M3 Technical Reference Manual describes all the features of an ARM Cortex-M3 in detail. However, these features differ based on the implementation. This section describes the Stellaris ® implementation. Texas Instruments has implemented the ARM Cortex-M3 core as shown in Figure 2-1 on page 41. As noted in the ARM® Cortex™-M3 Technical Reference Manual, several Cortex-M3 components are flexible in their implementation: SW/JTAG-DP, ETM, TPIU, the ROM table, the MPU, and the Nested Vectored Interrupt Controller (NVIC). Each of these is addressed in the sections that follow. 2.2.1 Serial Wire and JTAG Debug Texas Instruments has replaced the ARM SW-DP and JTAG-DP with the ARM CoreSight™-compliant Serial Wire JTAG Debug Port (SWJ-DP) interface. The SWJ-DP interface combines the SWD and JTAG debug ports into one module. See the CoreSight™ Design Kit Technical Reference Manual for details on SWJ-DP. 41 June 22, 2010 Texas Instruments-Production Data Stellaris® LM3S8630 Microcontroller |
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