LM3S2939 Datasheet, PDF (4/749 Pages) Texas Instruments – Stellaris® LM3S2939 Microcontroller

Table of Contents
2.5.4
2.5.5
2.5.6
2.5.7
2.6
2.6.1
2.6.2
2.6.3
2.6.4
2.7
2.7.1
2.7.2
2.8
3
3.1
3.1.1
3.1.2
3.1.3
3.1.4
3.2
3.3
3.4
3.5
3.6
4
4.1
4.2
4.3
4.3.1
4.3.2
4.3.3
4.3.4
4.4
4.5
4.5.1
4.5.2
5
5.1
5.2
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.3
5.4
5.5
Vector Table .................................................................................................................. 84
Exception Priorities ....................................................................................................... 85
Interrupt Priority Grouping .............................................................................................. 86
Exception Entry and Return ........................................................................................... 86
Fault Handling .............................................................................................................. 88
Fault Types ................................................................................................................... 89
Fault Escalation and Hard Faults .................................................................................... 89
Fault Status Registers and Fault Address Registers ........................................................ 90
Lockup ......................................................................................................................... 90
Power Management ...................................................................................................... 90
Entering Sleep Modes ................................................................................................... 91
Wake Up from Sleep Mode ............................................................................................ 91
Instruction Set Summary ............................................................................................... 92
Cortex-M3 Peripherals ........................................................................................... 95
Functional Description ................................................................................................... 95
System Timer (SysTick) ................................................................................................. 95
Nested Vectored Interrupt Controller (NVIC) .................................................................... 96
System Control Block (SCB) .......................................................................................... 98
Memory Protection Unit (MPU) ....................................................................................... 98
Register Map .............................................................................................................. 103
System Timer (SysTick) Register Descriptions .............................................................. 105
NVIC Register Descriptions .......................................................................................... 109
System Control Block (SCB) Register Descriptions ........................................................ 122
Memory Protection Unit (MPU) Register Descriptions .................................................... 149
JTAG Interface ...................................................................................................... 159
Block Diagram ............................................................................................................ 160
Signal Description ....................................................................................................... 160
Functional Description ................................................................................................. 161
JTAG Interface Pins ..................................................................................................... 161
JTAG TAP Controller ................................................................................................... 163
Shift Registers ............................................................................................................ 164
Operational Considerations .......................................................................................... 164
Initialization and Configuration ..................................................................................... 167
Register Descriptions .................................................................................................. 167
Instruction Register (IR) ............................................................................................... 167
Data Registers ............................................................................................................ 170
System Control ..................................................................................................... 172
Signal Description ....................................................................................................... 172
Functional Description ................................................................................................. 172
Device Identification .................................................................................................... 173
Reset Control .............................................................................................................. 173
Power Control ............................................................................................................. 177
Clock Control .............................................................................................................. 178
System Control ........................................................................................................... 183
Initialization and Configuration ..................................................................................... 184
Register Map .............................................................................................................. 184
Register Descriptions .................................................................................................. 186
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June 18, 2012
Texas Instruments-Production Data