Table of Contents
About This Document .................................................................................................................... 17
Audience .............................................................................................................................................. 17
About This Manual ................................................................................................................................ 17
Related Documents ............................................................................................................................... 17
Documentation Conventions .................................................................................................................. 17
1
Architectural Overview ...................................................................................................... 19
1.1
Product Features ...................................................................................................................... 19
1.2
Target Applications .................................................................................................................... 23
1.3
High-Level Block Diagram ......................................................................................................... 24
1.4
Functional Overview .................................................................................................................. 25
1.4.1
ARM Cortex™-M3 ..................................................................................................................... 26
1.4.2
Motor Control Peripherals .......................................................................................................... 26
1.4.3
Analog Peripherals .................................................................................................................... 27
1.4.4
Serial Communications Peripherals ............................................................................................ 27
1.4.5
System Peripherals ................................................................................................................... 28
1.4.6
Memory Peripherals .................................................................................................................. 29
1.4.7
Additional Features ................................................................................................................... 30
1.4.8
Hardware Details ...................................................................................................................... 30
2
ARM Cortex-M3 Processor Core ...................................................................................... 32
2.1
Block Diagram .......................................................................................................................... 33
2.2
Functional Description ............................................................................................................... 33
2.2.1
Serial Wire and JTAG Debug ..................................................................................................... 33
2.2.2
Embedded Trace Macrocell (ETM) ............................................................................................. 34
2.2.3
Trace Port Interface Unit (TPIU) ................................................................................................. 34
2.2.4
ROM Table ............................................................................................................................... 34
2.2.5
Memory Protection Unit (MPU) ................................................................................................... 34
2.2.6
Nested Vectored Interrupt Controller (NVIC) ................................................................................ 34
3
Memory Map ....................................................................................................................... 38
4
Interrupts ............................................................................................................................ 40
5
JTAG Interface .................................................................................................................... 42
5.1
Block Diagram .......................................................................................................................... 43
5.2
Functional Description ............................................................................................................... 43
5.2.1
JTAG Interface Pins .................................................................................................................. 44
5.2.2
JTAG TAP Controller ................................................................................................................. 45
5.2.3
Shift Registers .......................................................................................................................... 46
5.2.4
Operational Considerations ........................................................................................................ 46
5.3
Initialization and Configuration ................................................................................................... 49
5.4
Register Descriptions ................................................................................................................ 49
5.4.1
Instruction Register (IR) ............................................................................................................. 49
5.4.2
Data Registers .......................................................................................................................... 51
6
System Control ................................................................................................................... 53
6.1
Functional Description ............................................................................................................... 53
6.1.1
Device Identification .................................................................................................................. 53
6.1.2
Reset Control ............................................................................................................................ 53
3
October 09, 2007
Preliminary
LM3S1911 Microcontroller