Table of Contents
About This Document .................................................................................................................... 21
Audience .............................................................................................................................................. 21
About This Manual ................................................................................................................................ 21
Related Documents ............................................................................................................................... 21
Documentation Conventions .................................................................................................................. 21
1
Overview ............................................................................................................................. 23
1.1
Product Features ...................................................................................................................... 23
1.2
Target Applications .................................................................................................................... 29
1.3
High-Level Block Diagram ......................................................................................................... 29
1.4
Functional Overview .................................................................................................................. 30
1.4.1
ARM Cortex™-M3 ..................................................................................................................... 31
1.4.2
Motor Control Peripherals .......................................................................................................... 31
1.4.3
Serial Communications Peripherals ............................................................................................ 32
1.4.4
System Peripherals ................................................................................................................... 34
1.4.5
Memory Peripherals .................................................................................................................. 34
1.4.6
Additional Features ................................................................................................................... 35
1.4.7
Hardware Details ...................................................................................................................... 36
2
Cortex-M3 Core .................................................................................................................. 37
2.1
Block Diagram .......................................................................................................................... 38
2.2
Functional Description ............................................................................................................... 38
2.2.1
Serial Wire and JTAG Debug ..................................................................................................... 38
2.2.2
Embedded Trace Macrocell (ETM) ............................................................................................. 39
2.2.3
Trace Port Interface Unit (TPIU) ................................................................................................. 39
2.2.4
ROM Table ............................................................................................................................... 39
2.2.5
Memory Protection Unit (MPU) ................................................................................................... 39
2.2.6
Nested Vectored Interrupt Controller (NVIC) ................................................................................ 39
3
Memory Map ....................................................................................................................... 43
4
Interrupts ............................................................................................................................ 46
5
JTAG .................................................................................................................................... 49
5.1
Block Diagram .......................................................................................................................... 50
5.2
Functional Description ............................................................................................................... 50
5.2.1
JTAG Interface Pins .................................................................................................................. 51
5.2.2
JTAG TAP Controller ................................................................................................................. 52
5.2.3
Shift Registers .......................................................................................................................... 53
5.2.4
Operational Considerations ........................................................................................................ 53
5.3
Initialization and Configuration ................................................................................................... 56
5.4
Register Descriptions ................................................................................................................ 56
5.4.1
Instruction Register (IR) ............................................................................................................. 56
5.4.2
Data Registers .......................................................................................................................... 58
6
System Control ................................................................................................................... 60
6.1
Functional Description ............................................................................................................... 60
6.1.1
Device Identification .................................................................................................................. 60
6.1.2
Reset Control ............................................................................................................................ 60
6.1.3
Power Control ........................................................................................................................... 63
3
June 04, 2007
Preliminary
LM3S2965 Microcontroller