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LM3S6938-IQR80-A2 Datasheet(PDF) 3 Page - Texas Instruments |
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LM3S6938-IQR80-A2 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 559 page Table of Contents Revision History ............................................................................................................................. 18 About This Document .................................................................................................................... 22 Audience .............................................................................................................................................. 22 About This Manual ................................................................................................................................ 22 Related Documents ............................................................................................................................... 22 Documentation Conventions .................................................................................................................. 22 1 Architectural Overview .......................................................................................... 25 1.1 Product Features .......................................................................................................... 25 1.2 Target Applications ........................................................................................................ 33 1.3 High-Level Block Diagram ............................................................................................. 33 1.4 Functional Overview ...................................................................................................... 35 1.4.1 ARM Cortex™-M3 ......................................................................................................... 35 1.4.2 Motor Control Peripherals .............................................................................................. 35 1.4.3 Analog Peripherals ........................................................................................................ 36 1.4.4 Serial Communications Peripherals ................................................................................ 37 1.4.5 System Peripherals ....................................................................................................... 38 1.4.6 Memory Peripherals ...................................................................................................... 39 1.4.7 Additional Features ....................................................................................................... 39 1.4.8 Hardware Details .......................................................................................................... 40 2 ARM Cortex-M3 Processor Core ........................................................................... 41 2.1 Block Diagram .............................................................................................................. 42 2.2 Functional Description ................................................................................................... 42 2.2.1 Serial Wire and JTAG Debug ......................................................................................... 42 2.2.2 Embedded Trace Macrocell (ETM) ................................................................................. 43 2.2.3 Trace Port Interface Unit (TPIU) ..................................................................................... 43 2.2.4 ROM Table ................................................................................................................... 43 2.2.5 Memory Protection Unit (MPU) ....................................................................................... 43 2.2.6 Nested Vectored Interrupt Controller (NVIC) .................................................................... 43 3 Memory Map ........................................................................................................... 47 4 Interrupts ................................................................................................................. 49 5 JTAG Interface ........................................................................................................ 52 5.1 Block Diagram .............................................................................................................. 53 5.2 Functional Description ................................................................................................... 53 5.2.1 JTAG Interface Pins ...................................................................................................... 53 5.2.2 JTAG TAP Controller ..................................................................................................... 55 5.2.3 Shift Registers .............................................................................................................. 56 5.2.4 Operational Considerations ............................................................................................ 56 5.3 Initialization and Configuration ....................................................................................... 59 5.4 Register Descriptions .................................................................................................... 59 5.4.1 Instruction Register (IR) ................................................................................................. 59 5.4.2 Data Registers .............................................................................................................. 61 6 System Control ....................................................................................................... 64 6.1 Functional Description ................................................................................................... 64 6.1.1 Device Identification ...................................................................................................... 64 3 April 05, 2010 Texas Instruments-Production Data Stellaris® LM3S6938 Microcontroller |
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